cble boiler book
TRANSCRIPT
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 143
1
CONTENTS
FEATURES AND BENEFITS 4
True BoilerBurnerLow NOx Package 4
PRODUCT OFFERING 4
Standard Equipment 4
Available Options 4
DIMENSIONS AND RATINGS 4PERFORMANCE DATA 24
Specifying Boiler Efficiency 24
Efficiency Specification 24
Emissions 25
ENGINEERING DATA 28
Sound Level 28
Gas-Fired Burners 29
Oil-Fired Burners 33
General Boiler Information 33
Boiler Room Information 33
Stack Support Capabilities 33
StackBreeching Size Criteria 33
Boiler Room Combustion Air 33
Model CBLE Boilers
125-800HP
03 2016
7262019 CBLE Boiler Book
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2
Model CBLE 125-800 HP Boilers
ILLUSTRATIONS
Figure A1-1 CB-LE Steam - 125-200 HP 6
Figure A1-2 CB-LE Steam - 250-350 HP 8
Figure A1-3 CB-LE Steam - 400-800 HP 10
Figure A1-4 CB-LE Hot Water - 125-200 HP 12
Figure A1-5 CB-LE Hot Water 250-350 HP 14
Figure A1-6 CB-LE Hot Water 400-800 HP 16
Figure A1-7 Space Required to Open Rear Head on Model CB-LE Boilers Equipped with Davits 21
Figure A1-8 Model CB-LE Boiler Mounting Piers (60rdquo and 78rdquo) 21
Figure A1-9 Model CB-LE Boiler Mounting Piers (96rdquo) 22
Figure A1-10 Front Davit Support 22
Figure A1-11 Lifting Lug Location Model CB-LE Boilers 23
Figure A1-12 Predicted Stack Temperature Increase for Pressure Greater Than 125 psig 26
Figure A1-13 Standard Gas Train Connection Size and Location 32
Figure A1-14 Typical Gas Piping Layout 35
Figure A1-15 Model CB-LE Gas Train Components 36
Figure A1-16 No2 Oil Connection Size Location and Recommended Line Sizes 36Figure A1-17 No 2 Oil Piping Single Boiler Installation Remote Oil Pump 37
Figure A1-18 No 2 Oil Piping Multiple Boiler Installation Remote Oil Pumps 37
Figure A1-19 No 2 Oil Piping Multiple Boiler Installation 38
Figure A1-20 No 2 Oil Transfer Tank Detail 38
Figure A1-21 Typical Arrangement 39
Figure A1-22 Boiler Room Length (Typical Layouts) 41
Figure A1-23 Boiler Room Width (Typical Layout) 41
Figure A1-24 Breeching Arrangement 42
TABLES
Table A1-1 Model CB-LE Steam Boiler Ratings 5Table A1-2 Model CB-LE Hot Water Boiler Ratings 5
Table A1-3 Model CB-LE Steam Boiler Dimensions60rdquo (15 - 150 psig Design Pressure) 6
Table A1-4 Model CB-LE Steam Boiler Dimensions78rdquo (15 - 150 psig Design Pressure) 8
Table A1-5 Model CB-LE Steam Boiler Dimensions96rdquo (15 - 150 psig Design Pressure) 10
Table A1-6 Model CB-LE Hot Water Boiler Dimensions60rdquo (30 and 125 psig Design Pressure) 12
Table A1-7 Model CB-LE Hot Water Boiler Dimensions78rdquo (30 and 125 psig Design Pressure) 14
Table A1-8 Model CB-LE Hot Water Boiler Dimensions96rdquo (30 and 125 psig Design Pressure) 16
Table A1-9 Blower Motor Selection - Steam Boilers O 150 psig all HW boilers 18
Table A1-10 Blower Motor Selection - Steam Boilers gt150 psig 18
Table A1-11 Blower Motor Selection CB-LE NTI Boilers 18
Table A1-12 Turndown Guarantee for CB-LE NTI Boilers - Natural Gas amp 2 Oil 18
Table A1-13 Model CB-LE Boiler Weights 19
Table A1-14 Steam Boiler Safety Valve Openings 20
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Model CBLE 125-800 HP Boilers
3
Table A1-15 Hot Water Boiler Relief Valve Openings 20
Table A1-16 Predicted Fuel-to-Steam Efficiencies - Natural Gas 26
Table A1-17 Predicted Fuel-to-Steam Efficiencies - No 2 Oil 27
Table A1-18 CB-LE Boilers - Natural Gas Emission Levels 27
Table A1-19 CB-LE Boilers - No 2 Oil Emission Levels 27
Table A1-20 Model CB-LE Predicted Sound Levels 30 ppm NOx Systems 28Table A1-21 Standard Undersize and Oversize Gas Trains Model CB-LE Boilers 30
Table A1-22 Recommended NTI Gas Train Sizes amp Pressure Ranges 31
Table A1-23 Minimum Required Regulated Gas Pressure Altitude Conversion 32
Table A1-24 Maximum Gas Consumption (CFH) for Natural Gas and Propane Vapor 32
Table A1-25 Model CB-LE Blowdown Tank Sizing 39
Table A1-26 Heating Surface Model CB-LE Boilers 39
Table A1-27 Steam Volume amp Disengaging Area 40
Table A1-28 Recommended Steam Nozzle Size 40
Table A1-29 Recommended Non-Return Valve Size 40
The Low Emission feature combines the packaging of induced flue gas recirculation with the Cleaver-Brooks integralfront head The front head routes the flue gases from the fourth pass to the fan and burner assembly for reliable low
NOx performance The enhanced burner design assures maximum NOx reduction at all firing rates while maintaining
top of the line boiler performance
Standard Low Emission Options include 60 30 25 or 20 ppm packages (all NOx emission levels are given on a dry
volume basis and corrected to 3 O2)
bull NOx performance for 60 ppm (natural gas corrected to 3 O2) uses a standard size combustion air fan for
induced flue gas recirculation
bull NOx performance for 30 25 or 20 ppm (natural gas corrected to 3 O2) includes a larger combustion air fan
motor assembly and a larger internal NOx reduction system
Cleaver-Brooks commitment to lowering emissions is based on more than 400 low NOx installations - all passing guar-
anteed emission performance levels
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Model CBLE 125-800 HP Boilers
4
FEATURES AND BENEFITS
The Cleaver-Brooks Model CB Boiler - the premium firetube on the market today -includes the four-pass dryback design five square feet of heating surface per boilerhorsepower and maximum boiler efficiency In addition to the features of the ModelCB Boiler the Low Emission Option provides the following
Integral Front Head Designbull Single-piece front door
bull Fan cassette assembly for easy access to fan and motor
bull Guaranteed low nitrogen oxide (NOx) performance
bull Enhanced burner performance
bull Improved flame stability and combustion control
bull Intimate mixing of air and fuel assures minimum CO levels at low NOx levels
True BoilerBurnerLow NOx Package
bull ULULC approved package
bull Assures highest fuel-to-steam efficiencybull Eliminates the need for field installation of burner controls or NOx equipment
bull Single point positioning of fuel and air ensures ease of startup and providesreliable operation
PRODUCT OFFERING
The Low Emission Option currently is available on
bull 125 - 800 hp Model CB Firetube Dryback Boilers
bull High-pressure and low-pressure steam and hot water designs
bull Natural Gas No 2 oil or combination fired
bull Retrofit capability
Standard Equipment bull Model CB Firetube Boiler
bull New integral front head with internal low NOx system
bull Enhanced burner design
Available Options For option details contact your local Cleaver-Brooks authorized representative
bull Full line of Model CB Firetube options
bull Additional NOx reduction packages
DIMENSIONS AND RATINGS
The Model CB-LE dimensions and ratings are provided inTable A1-1 through TableA1-8 and in Figure A1-1 through Figure A1-6
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Model CBLE 125-800 HP Boilers
5
BOILER HP 125 150 200 250 300 350 400 500 600 700 800
POWER REQUIREMENTS - SEA LEVEL TO 700 FT 60 HZ
Rated Cap Btu Output (1000 Btuhr) 4184 5021 6695 8369 10043 11716 13390 16738 20085 23433 26780
APPROXIMATE FUEL CONSUMPTON AT RATED CAPACITY
Light Oil (gph)A 364 437 583 729 875 1021 1166 1458 1750 2041 2333
Natural Gas (cfh) MBtu 5103 6123 8165 10206 12247 14288 16329 20412 24494 28576 32659
Gas (Thermhr) 510 612 816 1021 1225 1429 1633 2041 2449 2858 3266
POWER REQUIREMENTS - SEA LEVEL TO 700 FT 60 HZ
Blower Motor hp Refer to Tables A1-9 and A1-10
Oil Pump Motor hp No 2 Oil 12 12 12 12 34 34 34 34 34 1 1
Air Compressor Motor hp (Oil firing Only) 3 3 3 5 5 5 7-12 7-12 7-12 7-12 7-12
NOTES
A Based on 140000 Btugal
Table A1-2 Model CB-LE Hot Water Boiler Ratings
BOILER HP 125 150 200 250 300 350 400 500 600 700 800
RATINGS SEA LEVEL TO 700 FT
Rated Steam Cap (lbshr from and 212
degF)
4313 5175 6900 8625 10350 12075 13800 17250 20700 24150 27600
Btu Output (1000 Btuhr) 4184 5021 6695 8369 10043 11716 13390 16738 20085 23433 26780
APPROXIMATE FUEL CONSUMPTION AT RATED CAPACITY
Light Oil (gph)A 364 437 583 729 875 1021 1166 1458 1750 2041 2333
Natural Gas (cfh) MBtu 5103 6123 8165 10206 12247 14288 16329 20412 24494 28576 32659
Gas (Thermhr) 510 612 816 1021 1225 1429 1633 2041 2449 2858 3266
POWER REQUIREMENTS - SEA LEVEL TO 700 FT 60 HZ
Blower Motor hp Refer to Tables A1-9 and A1-10
Oil Pump Motor hp No 2 Oil 12 12 12 12 34 34 34 34 34 1 1
Air Compressor Motor hp (Oil firing Only) 3 3 3 5 5 5 7-12 7-12 7-12 7-12 7-12
NOTES
A Based on 140000 Btugal
Table A1-1 Model CB-LE Steam Boiler Ratings
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
6
A
B
C D
E
F
G
H I J
KL
M Y
N
O
P Q
R S
T
UV
W
X
Y AA
BB CC DD EE
GG
HH
HH
JJ
GG
GG
JJ
KK
FF FARSIDE
Table A1-3 Model CB-LE Steam Boiler Dimensions
60rdquo (15 - 150 psig Design Pressure) - Sheet 1 of 2
(measurements shown in inches)
Description DIMBoiler HP
125 150 200
LENGTHS
Length Overall A 173 1965 2285
Shell B 125 149 180
Front Head Extension C 28 28 29
Front Ring Flange to Nozzle - 15 D 88 90 96
Front Ring Flange to Nozzle - 150 D 84 84 96
Rear Head Extension E 195 195 195
Front Ring Flange to Panel G 17 17 17Ring Flange to Base H 05 05 05
Base Frame I 112 136 167
Rear Flange Ring to Base J 125 125 125
HEIGHTS
Ht Overall K 87 87 87
Base to Vent Outlet L 87 87 87
Base to Boiler Centerline M 46 46 46
Base to Gas Train N 6 85 85
Figure A1-1 CB-LE Steam - 125-200 HP
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Model CBLE 125-800 HP Boilers
7
Description DIM Boiler HP
125 150 200
HEIGHTS (continued)
Base to Panel Top T 75 75 77Base to Panel Bottom U 15 15 17
Height of Base V 12 12 12
Base to Steam Nozzle Y 8238 8238 8238
WIDTHS
Width Overall O 8988 89875 905
Center to ALWCO P 3875 3875 3875
Center to Outside Control Panel Q 485 485 485
Center to Lagging R 33 33 33
Center to WC S 445 45 45
Base Inside W 445 445 445
Base Outside X 525 525 525
Boiler ID F 60 60 60
CONNECTIONSElectric - Main Power Supply AA 460 3 60 460 3 60 460 3 60
Surface Blowoff (with collector pipe) BB 1 1 1
Steam Outlet 15 (150 Flange) CC 8 8 10
Steam Outlet 150 (300 Flange) CC 4 4 4
Chemical Feed FF 1 1 1
Feed Water (2) GG 15 15 2
Blowdown (2) 150 HH 15 15 15
Drain (2) 15 HH 15 15 2
Water Column Blowdown JJ 075 075 075
Gauge Glass Blowdown KK 025 025 025
VENT STACK
Diameter (OD) (flgd connection) 16 16 16
CLEARANCES
Rear Door Swing (Davited) 32 32 32
Front Door Swing 67 67 67
Tube Removal Rear 115 139 170
Tube Removal Front 103 127 158
MINIMUM BOILER ROOM LENGTH ALLOWING FOR DOOR SWING AND TUBE REMOVAL
From Rear of Boiler 307 355 417
From Front of Boiler 260 308 370
Through Window or Doorway 224 248 279
WEIGHT IN LBS
Normal Water Capacity 5750 7250 8625
Approx Ship Wt 15 psig 11300 12600 14600
Approx Ship Wt 150 psig 12400 13500 15600
Approx Ship Wt 200 psig 13000 14200 16400
Table A1-3 Model CB-LE Steam Boiler Dimensions 60rdquo (15 - 150 psig Design Pressure) - Sheet 2 of 2
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 843
Model CBLE 125-800 HP Boilers
8
A
BC
D
E
F
G
H I J
K
L
M
N
O
P QR S
T
UV
W
X
Y
AA
BBCC
DD
EE
FF
GG
HH
HH
JJ
JJ
KK
GG
GG
Y
FARSIDE
(measurements shown in inches)
Description DIM
Boiler HP
250 300 350
LENGTHS
Length Overall A 1915 220 250
Shell B 144 171 201
Front Head Extension C 235 25 25
Front Ring Flange to Nozzle - 15 D 90 98 112
Front Ring Flange to Nozzle - 150 D 88 98 112
Rear Head Extension E 24 24 24
Front Ring Flange to Panel G 17 23 23
Ring Flange to Base H 05 05 05
Base Frame I 131 158 188
Rear Flange Ring to Base J 125 125 125
HEIGHTS
Ht Overall K 115 115 115
Base to Vent Outlet L 106 106 106Base to Boiler Centerline M 56 56 56
Base to Gas Train N 10 10 10
Base to Panel Top T 77 77 77
Base to Panel Bottom U 17 17 17
Height of Base V 12 12 12
Base to Steam Nozzle Y 10150 10150 10150
Table A1-4 Model CB-LE Steam Boiler Dimensions
78rdquo (15 - 150 psig Design Pressure) - Sheet 1 of 2
Figure A1-2 CB-LE Steam - 250-350 HP
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Model CBLE 125-800 HP Boilers
9
Description DIM Boiler HP
250 300 350
WIDTHS
Width Overall O 1065 1065 10875Center to ALWCO P 485 485 485
Center to Outside Control Panel Q 58 58 58
Center to Lagging R 42 42 42
Center to WC S 5375 5375 5375
Base Inside W 56 56 56
Base Outside X 64 64 64
Boiler ID F 78 78 78
CONNECTIONS
Electric - Main Power Supply AA 460 3 60 460 3 60 460 3 60
Surface Blowoff (with collector pipe) BB 1 1 1
Steam Outlet 15 (150 Flange) CC 12 12 12
Steam Outlet 150 (300 Flange) CC 6 6 6
Chemical Feed FF 1 1 1
Feed Water (2) GG 2 2 25Blowdown (2) 150 HH 15 15 15
Drain (2) 15 HH 2 2 2
Water Column Blowdown JJ 075 075 075
Gauge Glass Blowdown KK 025 025 025
VENT STACK
Diameter (OD) (flgd connection) 20 20 20
CLEARANCES
Rear Door Swing 43 43 43
Front Door Swing 89 89 89
Tube Removal Rear 131 157 187
Tube Removal Front 116 142 172
MINIMUM BOILER ROOM LENGTH ALLOWING FOR DOOR SWING AND TUBE REMOVAL
From Rear of Boiler 364 417 477
From Front of Boiler 303 356 416
Through Window or Doorway 275 302 332
WEIGHT IN LBS
Normal Water Capacity 10670 13000 15465
Approx Ship Wt 15 psig 21500 23600 26800
Approx Ship Wt 150 psig 22800 25200 27800
Approx Ship Wt 200 psig 24600 27200 29300
Table A1-4 Model CB-LE Steam Boiler Dimensions 78rdquo (15 - 150 psig Design Pressure) - Sheet 2 of 2
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Model CBLE 125-800 HP Boilers
10
A
BC
D
E
F
G
HI J
K
AA
BB CC
DD
EE
FF
JJ
GG
HH HH
L
M
N
O
P Q
R S
T
UV
W
X
Y
JJ
JJ
KK
GGGG
Y
FARSIDE
Table A1-5 Model CB-LE Steam Boiler Dimensions
96rdquo (15 - 150 psig Design Pressure) - Sheet 1 of 2
(measurements shown in inches)
Description DIMBoiler HP
400 500 600 700 800
LENGTHS
Length Overall A 20575 22775 25975 29875 29875
Shell B 14675 1675 19975 23275 23275
Front Head Extension C 27 28 28 34 34
Front Ring Flange to Nozzle - 15 D 98 101 96 112 112
Front Ring Flange to Nozzle - 150 D 96 100 96 112 112
Rear Head Extension E 32 32 32 32 32
Front Ring Flange to Panel G 26 26 26 26 26
Ring Flange to Base H 05 05 05 05 05
Base Frame I 13375 15475 18675 21975 21975
Rear Flange Ring to Base J 125 125 125 125 125
Figure A1-3 CB-LE Steam - 400-800 HP
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Model CBLE 125-800 HP Boilers
11
Description DIM Boiler HP
400 500 600 700 800
HEIGHTS
Ht Overall K 134 134 134 134 134Base to Vent Outlet L 126 126 126 126 126
Base to Boiler Centerline M 67 67 67 67 67
Base to Gas Train N 12 12 12 12 12
Base to Panel Top T 75 75 75 75 75
Base to Panel Bottom U 15 15 15 15 15
Height of Base V 12 12 12 12 12
Base to Steam Nozzle Y 1215 1235 1215 121 121
WIDTHS
Width Overall O 124 12425 124 124 124
Center to ALWCO P 575 575 575 575 575
Center to Outside Control Panel Q 665 665 665 665 665
Center to Lagging R 51 51 51 51 51
Center to WC S 63 63 63 63 63
Base Inside W 5888 5888 5888 5888 5888
Base Outside X 7188 7188 7188 7188 7188
Boiler ID F 96 96 96 96 96
CONNECTIONS
Electric - Main Power Supply AA 460 3 60 460 3 60 460 3 60 460 3 60 460 3 60
Surface Blowoff (with collector pipe) BB 1 1 1 1 1
Steam Outlet 15 (150 Flange) CC 12 12 12 12 12
Steam Outlet 150 (300 Flange) CC 6 8 8 8 8
Chemical Feed FF 1 1 1 1 1
Feed Water (2) GG 25 25 25 25 25
BlowdownDrain (2) HH 2 2 2 2 2
Water Column Blowdown JJ 075 075 075 075 075
Gauge Glass Blowdown KK 025 025 025 025 025
VENT STACK
Diameter (OD) (flgd connection) 24 24 24 24 24
CLEARANCES
Rear Door Swing 53 53 53 53 53Front Door Swing 108 108 108 108 108Tube Removal Rear 131 152 184 217 217
Tube Removal Front 114 135 167 200 200
MINIMUM BOILER ROOM LENGTH ALLOWING FOR DOOR SWING AND TUBE REMOVAL
From Rear of Boiler 386 428 492 558 558
From Front of Boiler 314 356 420 486 486
Through Window or Doorway 308 329 361 394 394
WEIGHT IN LBS
Normal Water Capacity 14810 15950 19270 23000 23000
Approx Ship Wt 15 psig 33500 37110 42300 49500 49600 Approx Ship Wt 150 psig 36570 39970 45025 52050 52150
Approx Ship Wt 200 psig 39680 43580 49400 57315 57415
Table A1-5 Model CB-LE Steam Boiler Dimensions
96rdquo (15 - 150 psig Design Pressure) - Sheet 2 of 2
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Model CBLE 125-800 HP Boilers
12
BOILER HP DIM 125 150 200
LENGTHS
Overall (60 ppm System) A 171-12 196-12 228-12
Shell B 125 149 180
Base Frame C 112 136 167
Front Head Extension (60 ppm System) D 27 28 29
Rear Head Extension E 19-12 19-12 19-12
Front Ring Flange to Outlet HH 114 136 167
Front Ring Flange to Return H 89 102 131
Ring Flange to Base F 12 12 12
Over Tubesheets V 113 137 168
Shell Extension P 12 12 12
Rear Flange Ring to Base G 12-12 12-12 12-12
Table A1-6 Model CB-LE Hot Water Boiler Dimensions
60rdquo (30 and 125 psig Design Pressure) - Sheet 1 of 2
Figure A1-4 CB-LE Hot Water - 125-200 HP
R
F G
WW
P
BB
D E
GG
Q
Z
Y T U
RR - RF - RD
X
HH
A
B
HI
L K
OO O
KK
M
N
EE
FF
DD
V
J
C
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Model CBLE 125-800 HP Boilers
13
BOILER HP DIM 125 150 200
WIDTHS
Overall I 75-12 75-12 75-12
ID Boiler J 60 60 60
Center to Entrance Box K 42-12 42-12 42-12
Center to Outside Hinge KK 35 35 35
Center to Lagging L 33 33 33
Base Outside M 52-12 52-12 52-12
Base Inside N 44-12 44-12 44-12
HEIGHTS
Overall OO 87 87 87
Base to Vent Outlet O 87 87 87
Base to Return and Outlet X 82-38 82-38 82-38
Height of Base Q 12 12 12
Base to Bottom of Boiler R 16 16 16
BOILER CONNECTION
Auxiliary Connection Z 1 1 1
Water Return Flange T 6A 6A 6A
Water Outlet Flange (2 Dip Tube Included) U 6A 6A 6A
Drain Front and Rear W 1-12 1-12 2
Air Vent Y 1-12 1-12 1-12
VENT STACK
Diameter (flgd connection) BB 16 16 16
MINIMUM CLEARANCES
Rear Door Swing DD 32 32 32
Front Door Swing EE 67 67 67
Tube Removal Rear FF 115 139 170Tube Removal Front GG 103 127 158
MINIMUM BOILER ROOM LENGTH ALLOWING FOR DOOR SWING AND TUBE REMOVAL FROM
Rear of Boiler RR 307 355 417
Front of Boiler RF 260 308 370
Thru Window or Doorway RD 224 248 279
WEIGHT IN LBS
Water Capacity Flooded 7670 9295 11130
Approx Ship Wgt ndash 30 psigApprox Ship Wgt ndash 125 psig
1140011800
1250012900
1450014900
NOTES All connections are threaded unless indicatedA ANSI 150 psig flange
Table A1-6 Model CB-LE Hot Water Boiler Dimensions
60rdquo (30 and 125 psig Design Pressure) - Sheet 2 of 2
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httpslidepdfcomreaderfullcble-boiler-book 1443
Model CBLE 125-800 HP Boilers
14
BOILER HP DIM 250 300 350
LENGTHS
Overall (60 ppm System) A 191-12 220 252
Shell B 144 171 201
Base Frame C 131 158 188
Front Head Extension (60 ppm System) D 23-12 25 27
Rear Head Extension E 24 24 24
Front Ring Flange to Return H 103-12 130 160
Front Ring Flange to Outlet HH 131 158 188
Ring Flange to Base F 12 12 12
Over Tubesheets V 129 156 186
Shell Extension P 15 15 15
Rear Flange Ring to Base G 12-12 12-12 12-12
Table A1-7 Model CB-LE Hot Water Boiler Dimensions78rdquo (30 and 125 psig Design Pressure) - Sheet 1 of 2
Figure A1-5 CB-LE Hot Water 250-350 HP
s k o o r B r e v a
e l C
R
F G
WW
P
BB
D E
GG
Q
Z
Y T U
RR - RF - RD
X
HH
A
B
HI
L K
OOO
KK
M
N
EE
FF
DD
V
J
C
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 1543
Model CBLE 125-800 HP Boilers
15
BOILER HP DIM 250 300 350
WIDTHS
Overall I 93 93 93
ID Boiler J 78 78 78
Center to Entrance Box K 51 51 51
Center to Outside Hinge KK 51 51 51
Center to Lagging L 42 42 42
Base Outside M 64 64 64
Base Inside N 52 52 52
HEIGHTS
Overall OO 115 115 115
Base to Vent Outlet O 106 106 106
Base to Return and Outlet X 101-12 101-12 101-12
Height of Base Q 10 10 10
Base to Bottom of Boiler R 17 17 17
BOILER CONNECTION
Auxiliary Connection Z 1-14 1-14 1-14
Water Return Flange (2 Dip Tube included) T 8A 8A 8A
Water Outlet Flange (2 Dip Tube Included) U 8A 8A 8A
Air Vent Y 1-12 1-12 1-12
Drain Front and Rear W 2 2 2
VENT STACK
Diameter (flgd connection) BB 20 20 20
MINIMUM CLEARANCES
Rear Door Swing DD 43 43 43
Front Door Swing EE 89 89 89
Tube Removal Rear FF 131 157 187
Tube Removal Front GG 116 142 172
MINIMUM BOILER ROOM LENGTH ALLOWING FOR DOOR SWING AND TUBE REMOVAL FROM
Rear of Boiler RR 364 417 477
Front of Boiler RF 303 356 416
Thru Window or Doorway RD 275 302 332
WEIGHT IN LBS
Water Capacity Flooded 13880 16840 20090
Approx Ship Wgt ndash 30 psigApprox Ship Wgt ndash 125 psig
2140022200
2350024300
2670027500
NOTES All connections are threaded unless indictedA ANSI 150 psig flange
Table A1-7 Model CB-LE Hot Water Boiler Dimensions
78rdquo (30 and 125 psig Design Pressure) - Sheet 2 of 2
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 1643
Model CBLE 125-800 HP Boilers
16
BOILER HP DIM 400 500 600 700 800
LENGTHS
Overall (60 ppm System) A 206 228 262 299 300
Shell B 147 168 200 233 233
Base Frame C 134 155 187 220 220
Front Head Extension (60 ppm System) D 27 28 30 34 35
Rear Head Extension E 32 32 32 32 32
Shell Ring Flange to Base F 12 12 12 12 12
Rear Ring Flange to Base G 12-12 12-12 12-12 12-12 12-12
Shell Flange to Outlet HH 139-12 156-12 182-12 216-12 216-12
Shell Flange to Return H 107 125 151-12 185 185
Over Tubesheets V 130 151 183 216 216
Shell Extension P 17 17 17 17 17
Table A1-8 Model CB-LE Hot Water Boiler Dimensions96rdquo (30 and 125 psig Design Pressure) - Sheet 1 of 2
Figure A1-6 CB-LE Hot Water 400-800 HP
s k o o r B r e v a
e l C
R
F G
WW
P
BB
D E
GG
Q
Z
Y T U
RR - RF - RD
X
HH
A
B
HI
L K
OOO
KK
M
N
EE
FF
DD
V
J
C
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 1743
Model CBLE 125-800 HP Boilers
17
WIDTHS
Overall I 113 113 113 113 115
ID Boiler J 96 96 96 96 96
Center to Entrance Box K 62 62 62 62 64
Center to Outside Hinge KK 62 62 62 62 62
Center to Lagging L 51 51 51 51 51
Base Outside M 72 72 72 72 72
Base Inside N 56 56 56 56 56
HEIGHTS
Overall OO 134 134 134 134 134
Base to Vent Outlet O 126 126 126 126 126
Height of Base Q 12 12 12 12 12
Base to Bottom of Boiler R 19 19 19 19 19
Base to Return and Outlet X 121-916 121-916 121-916 121-916 121-916
BOILER CONNECTIONS
Auxiliary Connection Z 1-14 1-14 1-14 1-14 1-14
Drain Front and Rear W 2 2 2 2 2
Water Return T 10A 10A 12A 12A 12A
Water Outlet (2rdquo Dip Tube Included) U 10A 10A 12A 12A 12A
Air Vent Y 2 2 2 2 2
VENT STACK
Diameter (Flanged Connection) BB 24 24 24 24 24
MINIMUM CLEARANCES
Rear Door Swing DD 53 53 53 53 53
Front Door Swing EE 108 108 108 108 108
Tube Removal Rear FF 131 152 184 217 217
Tube Removal Front GG 114 135 167 200 200
MINIMUM BOILER ROOM LENGTH ALLOWING FOR DOOR SWING AND TUBE REMOVAL FROM
Rear of Boiler RR 386 428 492 558 558
Front of Boiler RF 314 356 420 486 486
Thru Window or Doorway RD 308 329 361 394 394
WEIGHT IN LBS
Normal Water Capacity 20015 23300 28260 33360 33360
Approx Ship Wgt ndash 30 psig
Approx Ship Wgt ndash 125 psig
33300
37270
36900
40780
42150
46005
49650
53300
49750
53400
NOTES All connections are threaded unless indicated
A ANSI 150 psig flange
BOILER HP DIM 400 500 600 700 800
Table A1-8 Model CB-LE Hot Water Boiler Dimensions
96rdquo (30 and 125 psig Design Pressure) - Sheet 2 of 2
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Model CBLE 125-800 HP Boilers
18
BOILER HP
MOTOR HP
60PPM
30PPM
25PPM
20PPM
125 5 10 5 10
150 75 10 10 10
200 15 15 20 NA
250 75 10 15 15
300 10 15 20 30
350 15 25 40 40
400 10 15 20 20
500 15 20 25 30
600 25 30 50 60
700 30 50 75 75
800 50 75 NA NA
NOTES For elevations above 700rsquo - contact your local
Cleaver-Brooks authorized representative
Table A1-9 Model CB-LE Blower Motor Selection -
Operating Pressures 150 psig and Less and All Hot
Water Boilers
BOILER HP
MOTOR HP
60
PPM
30
PPM
25
PPM
20
PPM
125 5 10 10 10
150 10 10 10 15
200 15 20 20 NA
250 75 10 15 20
300 10 20 30 40
350 20 30 40 50
400 10 15 20 25
500 20 25 30 40
600 25 40 60 60
700 40 60 75B 75C
800 60 75A NA NA
NOTES For elevation above 700rsquo - contact your local
Cleaver-Brooks authorized representative
A Downrate to 770 hp
B Downrate to 675 hp
C Downrate to 660 hp
Table A1-10 Model CB-LE Blower Motor Selection -
Operating Pressures Greater than 150 psig (Steam
Boilers)
09-09
Table A1-11 Blower Motor Selection CB-LE NTI BoilersTable A1-12 Turndown Guarantee for CB-LE NTI
Boilers - Natural Gas amp 2 Oil
Boiler SizeTurndown
9 ppm 15 ppm
125 41 41
150 41 51
200 41 51
250 51 51
300 51 51
350 51 51
400 51 61
500 51 61
600 61 61
700 71 71
800 71 71
800 HP to be derated to 720 HP for 9 ppm and 750 HP
for 15 ppm
Altitude 700 ft and less - Design Pressure 150 psi and less
800 HP - to be de-rated to 720 HP for 9 ppm and to 750 HP for 15 ppm
mpp9mpp51Nominal
Boiler Size Blower Motor HP Blower Motor HP
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Model CBLE 125-800 HP Boilers
19
BOILER HPFUEL
SERIES
HOT WATER STEAM
30 PSIG 125 PSIG 15 PSIG 150 PSIG 200 PSIG
125100 11200 11600 11300 12000 12600200 11400 11800 11500 12400 13000
700 11300 11700 11400 12300 12900
150
100 12300 12700 12400 13200 13900
200 12500 12900 12600 13500 14200
700 12300 12700 12400 13300 14000
200
100 14400 14800 14500 15500 16300
200 14500 14900 14600 15600 16400
700 14500 14900 14600 15600 16400
250
100 20700 21500 20800 22000 23800
200 21400 22200 21500 22800 24600
700 20900 21700 21000 22500 24300
300
100 23100 23900 23200 24800 26800
200 23500 24300 23600 25200 27200
700 23400 24200 23500 25000 27000
350
100 26200 27000 26300 27600 29100
200 26700 27500 26800 27800 29300
700 26400 27200 26500 27700 29200
400
100 33000 36970 33200 36270 39380
200 33300 37270 33500 36570 39680
700 33200 37170 33400 36470 39580
500
100 36600 40470 36810 39670 43480
200 36900 40780 37110 39970 43580
700 36800 40680 37010 39870 43280
600
100 41850 45905 42000 44725 49100
200 42150 46005 42300 45025 49400
700 42050 45915 42200 44925 49300
700800
100 49450 53000 49300 51850 57015
200 49750 53300 49600 52150 57315
700 49650 53200 49500 52050 57215
NOTES1 Weights shown are based on standard product offering for current listed boilers If units are of special design and construction actual weightwill be determined at time of shipment Shipment will then be made on shippers weight and count All weights are in US pounds
Table A1-13 Model CB-LE Boiler Weights
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Model CBLE 125-800 HP Boilers
20
VALVE
SETTING15 PSIG STEAM 100 PSIG STEAM 125 PSIG STEAM 150 PSIG STEAM 200 PSIG STEAM 250 PSIG STEAM 300 PSIG STEAM
BOILERHP
NO OF
VALVES-REQD
OUTLET
SIZE(IN)
NO OF
VALVES-REQD
OUTLET
SIZE(IN)
NO OF
VALVESREQD
OUTLET
SIZE(IN)
NO OF
VALVES-REQD
OUTLET
SIZE(IN)
NO OF
VALVES-REQD
OUTLET
SIZE(IN)
NO OF
VALVESREQD
OUTLET
SIZE(IN)
NO OF
VALVESREQD
OUTLET
SIZE(IN)
125 1 3 2 1-12 2(1) 1-12(1) 1-14
2(1) 1-12(1) 1-14
2(1) 1-14(1) 1
2 1 2 1
150 1 3 2(1) 2(1) 1-12
2 1-14 2(1) 1-12(1) 1-14
2(1) 1(1) 1-14
2 1 2 1
200 2 2-12 2 2 2 1-12 2 1-12 2(1) 1-12(1) 1-14
2 1-14 2(1) 1(1) 1-14
250 2(1) 2-12(1) 3
2(1) 2-12(1) 2
2(1)2(1)1-12
2(1) 2(1) 1-12
2(1)1-12(1)1-14
2(1) 1-12(1) 1-14
2 1-14
300 2 3 2(1) 2-12(1) 2
2 2 2(1) 2(1) 1-12
2 1-12 2(1)1-12(1)1-14
2(1) 1-12(1) 1-14
350 3(1) 2(2) 3
3(1) 2-12(2) 2
2(1)2(1)1-12
2 2 2(1) 1-12(1) 2
2 1-12 2(1) 1-12(1) 1-14
400 3(2) 3(1) 2-12
3(1) 2(2) 2-12
2(1)2(1)2-12
2(1) 2-12(1) 2
2(1) 1-12(1) 2
2(1) 2(1) 1-12
2 1-12
500 3 (3) 3 3 2-12 2 2-12 2(1) 2-12(1) 2
2(1) 2(1) 2-12
2(1) 2(1)1-12
2(1) 1-12(1) 2
600 4 3 4(3) 2-12(1) 2
3 2-12 2 2-12 2(1) 2(1) 2-12
2 2 2 2
700 5(3) 3(2) 2-12
5(3) 2-12(2) 2
3 2-12 3(2) 2-12(1) 2
2 2-12 2(1) 2(1) 2-12
2 2
800 5(3) 3(2) 2-12
5(3) 2-12(2) 2
4(3) 2-12(1) 2
3(2) 2-12(1) 2
2 2-12 2(1) 2(1) 2-12
2(1) 2(1) 2-12
NOTES Valve manufacturers are Kunkle Consolidated or Conbraco depending on availability This table revised 042012
Table A1-14 Steam Boiler Safety Valve Openings
VALVE
SETTING 30 PSIG HW 60 PSIG HW 100 PSIG HW 125 PSIG HW
BOILER HPNO OF
VALVESREQD
OUTLETSIZE(IN)
NO OFVALVESREQD
OUTLETSIZE(IN)
NO OFVALVESREQD
OUTLETSIZE(IN)
NO OFVALVESREQD
OUTLETSIZE(IN)
125 1 2-12 1 2 1 2 1 1-14
150 1 2-12 1 2-12 1 2 1 2
200 2(1) 2-12(1) 1-14
1 2-12 1 2 1 2
250 2 (1) 2(1) 2-12
1 2-12 1 2-12 1 2
300 2 2-12 2(1) 1(1) 2-12
1 2-12 1 2-12
350 3(2) 2-12(1) 1
2(1) 2-12(1) 2
1 2-12 1 2-12
400 3 (1) 2(2) 2-12 2 (1) 2(2) 2-12 2 (1) 1(1) 2-12 1 2-12
500 4 (1) 1(3) 2-12
2 2-12 2(1) 2-12(1) 1-14
2(1) 1(1) 2-12
600 4(3) 2-12(1) 2
3(1) 1-1(2) 2-12
2(1) 2(1) 2-12
2(1) 2-12(1) 1-14
700 amp 800 5 (1) 1(4) 2-12
3(1) 2(2) 2-12
2 2-12 2(1) 2-12(1) 2
NOTES Hot water relief valves are Kunkle 537
Table A1-15 Hot Water Boiler Relief Valve Openings
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Model CBLE 125-800 HP Boilers
21
BOILER HP A B C D E F G X1 X2 X3
125 6 9 112 39-12 57-12 4 44-12 10 9-34 22-12
150 6 9 136 39-12 57-12 4 44-12 10 9-34 22-12
200 6 9 167 39-12 57-12 4 44-12 10 9-34 22-12
250 6 12 131 46 70 4 56 10 22 22-12
300 6 12 158 46 70 4 56 10 22 22-12
350 6 12 188 46 70 4 56 10 22 22-12
NOTE
All numbers in table are in inches
6-inch high mounting piers recommended for use beneath the boiler base frame The use of these piers provides increased inspection
accessibility to the piping beneath the boiler and added height for washing down the area beneath the boiler
Figure A1-7 Space Required to Open Rear Head on Model CB-LE Boilers Equipped with Davits
BOILER HPDIMENSIONS (INCHES)
A B C D E
CB-125 THRU CB-200 33 55 45 68 32
CB-250 THRU CB-350 42 69 58 86 43
CB-400 THRU CB-800 51 88 71 109 53
Figure A1-8 Model CB-LE Boiler Mounting Piers (60rdquo and 78rdquo)
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Model CBLE 125-800 HP Boilers
22
BOILER HP A B C D E F G
400 6 14 134 50 78 6-12 58-78
500 6 14 155 50 78 6-12 58-78
600 6 14 187 50 78 6-12 58-78
700-800 6 14 220 50 78 6-12 58-78
NOTE1 All numbers in table are in inches2 6-inch high mounting piers recommended for use beneath the boiler base frame The use of these piers provides in-
creased inspection accessibility to the piping beneath the boiler and added height for washing down the area beneaththe boiler
Figure A1-9 Model CB-LE Boiler Mounting Piers (96rdquo)
CBLE 250-350HP
CBLE 400-800HP
Motor HP Hole Number
75 1
15 1
25 2
40 3
Motor HP Hole Number
10 1
20 1
30 250 2
75 3
Figure A1-10 Front Davit Support
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Model CBLE 125-800 HP Boilers
23
BOILERHP
VIEW
ALL DIMENSIONS IN INCHES
A B C D E
125 All B 80-14 29-34 70-12 10 3
150 All B 80-14 29-34 83-12 10 3
200 All B 80-14 29-34 114-12 10 3
250Steam B 99 36 72 10 3
Hot Water B 99 36 81 10 3
300
Steam B 99 36 99 10 3
Hot Water B 99 36 108 10 3
350Steam B 99 36 129 10 3
Hot Water B 99 36 138 10 3
400Steam B 119 35-34 78 11 3
Hot Water B 119 35-34 78 11 3
500Steam B 119 35-34 99 11 3
Hot Water B 119 35-34 99 11 3
600Steam B 119 35-34 131 11 3
Hot Water B 119 35-34 131 11 3
700 amp 800Steam B 119 35-34 164 11 3
Hot Water B 119 35-34 164 11 3
NOTE A B and C dimensions may vary by 12 inch
Figure A1-11 Lifting Lug Location Model CB-LE Boilers
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Model CBLE 125-800 HP Boilers
24
PERFORMANCE DATA
The Low Emission Option provides NOx reduction at current published andpredicted fuel-to-steam efficiencies
Specifying BoilerEfficiency
Cleaver-Brooks offers an industry leading fuel-to-steam boiler efficiency guaranteefor Model CB-LE Firetube Boilers The guarantee is based on the fuel-to-steam
efficiencies shown in the efficiency tables and the following conditions Theefficiency percent number is only meaningful if the specific conditions of theefficiency calculations are clearly stated in the specification (see Cleaver-Brookspublication CB-7768 for a detailed description of efficiency calculations)
When specifying the efficiencies in the tables be sure to include the specificguarantee conditions to maximize the effectiveness of your efficiency specification Ifyou have any questions regarding the efficiency specifications please contact yourlocal Cleaver-Brooks authorized representative
EfficiencySpecification
The boiler manufacturer shall guarantee that at the time of startup the boiler willachieve fuel-to-steam efficiency (as shown in Table A1-16 and Table A1-17) at100 firing rate (add efficiency guarantees at 25 50 and 75 of rating if
required) If the boiler(s) fail to achieve the corresponding guaranteed efficiency aspublished the boiler manufacturer will rebate to the ultimate boiler owner tenthousand dollars ($10000) for every full efficiency point (10) that the actualefficiency is below the guaranteed level
The specified boiler efficiency is based on the following conditions
1 Fuel specification used to determine boiler efficiency
bull Natural Gas
Carbon (wt) = 6998Hydrogen (wt) = 2231Sulfur (wt) = 00
Heating value Btulb = 21830bull No 2 Oil
Carbon (wt) = 858Hydrogen (wt) = 127Sulfur (wt) = 02Heating value Btulb = 19420
No 6 Oil
Carbon (wt) = 866Hydrogen (wt) = 109Sulfur (wt) = 209Heating value Btulb = 18830
2 Efficiencies are based on ambient air temperature of 80 degF relative humidity of30 and 15 excess air in the exhaust flue gas
3 Efficiencies are based on manufacturerrsquos published radiation and convectionlosses (For Cleaver-Brooks radiation and convection losses see BoilerEfficiency Facts Guide publication number CB-7767)
4 Any efficiency verification testing will be based on the stack loss method
For efficiencies and stack temperatures at operating pressures not listed followthese procedures
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Model CBLE 125-800 HP Boilers
25
When the operating steam pressure is between 10 psig and 125 psig interpolatethe values from the efficiency tables
When the operating steam pressure is above 125 psig estimated efficiency can becalculated as follows
Example
Boiler 350 hpFuel natural gas
Operating steam pressure 200 psig
Find the fuel-to-steam efficiency at 100 firing rate From Table A1-16 for a 350hp boiler operating at 100 firing rate and an operating steam pressure of 125psig the efficiency is 825
Using Figure A1-12 note that the stack temperature increases 36 degF at the higheroperating pressure To estimate boiler efficiency use this rule of thumb For every40 degF increase in stack temperature efficiency decreases by 1 Since the stacktemperature rise is 36 degF the decrease in the boiler efficiency at 200 psig operatingpressure is calculated as follows 3640 =9 Therefore the boiler efficiency at200 psig operating pressure is 825 -9 = 816
Emissions The emission data included in this section consists of typical emission levels forModel CB boilers equipped with 60 30 25 and 20 ppm LE Options when firingnatural gas and No 2 oil
Notice
The data in Table A1-18 and Table A1-19 represent typical emission levels only
Guaranteed emission levels are available from your local Cleaver-Brooks authorized
representative
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Model CBLE 125-800 HP Boilers
26
BOILER
HP
OPERATING PRESSURE = 10 psig OPERATING PRESSURE = 125 psig
OF LOAD OF LOAD
25 50 75 100 25 50 75 100
125 833 836 834 832 804 809 810 810
150 844 846 845 843 815 820 820 821
200 850 853 851 849 822 827 827 827
250 850 847 840 833 820 820 816 813
300 853 853 846 839 826 827 822 819
350 853 857 852 845 826 832 828 825
400 845 847 846 844 818 822 824 822
500 855 857 855 852 828 832 833 831
600 857 860 858 856 829 835 836 835
700 857 862 860 857 830 836 836 836
800 858 861 859 856 831 836 837 835
Table A1-16 Predicted Fuel-to-Steam Efficiencies - Natural Gas
Figure A1-12 Predicted Stack Temperature Increase for Pressure Greater Than 125 psig
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Model CBLE 125-800 HP Boilers
27
Table A1-18 CB-LE Boilers - Natural Gas Emission Levels
POLLUTANT
ESTIMATED LEVEL
60 ppm 30 ppm 25 ppm 20 ppm 15 ppm 9 ppm
CO ppmA
lbMMBtu
50150B
004011
50150B
004011
50150B
004011
50150B
004011
50
004
50
004
NOx ppmA
lbMMBtu
60
007
30
0035
25
003
20
0024
15
0018
9
0011
SOx ppmA
lbMMBtu
1
0001
1
0001
1
0001
1
0001
1
0001
1
0001
HCVOC5 ppmA
lbMMBtu
10
0004
10
0004
10
0004
10
0004
10
0004
10
0004
PM ppmA
lbMMBtu
-
001
-
001
-
001
-
001
-
001
-
001
A ppm levels are given on a dry volume basis and corrected to 3 oxygen (15 excess air)
B CO emission for 60 30 25 amp 20 ppm system is 50 ppm (004 lbMMBtu) when boiler is operating above 50 of rated capacity
CO emission is 150 ppm (011 lbMMBtu) when boiler is operating below 50 of rated capacity
Table A1-17 Predicted Fuel-to-Steam Efficiencies - No 2 Oil
BOILER
HP
OPERATING PRESSURE = 10 psig OPERATING PRESSURE = 125 psig
OF LOAD OF LOAD
25 50 75 100 25 50 75 100
125 867 869 867 866 837 842 843 843
150 878 880 878 876 848 853 853 854
200 884 887 884 882 856 860 860 860
250 883 881 874 867 853 853 849 847
300 886 887 880 873 859 860 855 852
350 886 890 885 878 859 866 861 858
400 879 881 879 876 851 855 856 855
500 889 890 889 886 861 865 866 864
600 890 894 892 890 862 868 869 868
700 891 895 893 891 863 869 870 869
800 892 895 893 890 864 869 870 868
Table A1-19 CB-LE Boilers - No 2 Oil Emission Levels
POLLUTANTESTIMATED LEVEL
60 ppm LE Option 30 25 20 ppm LE Option 15 ppm 9 ppm
CO ppmA
lbMMBtu
50
0039
50
0039
50
0039
50
0039
NOx ppmA
lbMMBtu140
018690
012085
011370
0093
SOx ppmA
lbMMBtu
278
052
278
052
278
052
278
052
HCVOCs ppmA
lbMMBtu
4
0002
4
0002
4
0002
4
0002
PM ppmA
lbMMBtu
-
0025
-
0025
-
0025
-
0025
A ppm levels are given on a dry volume basis and corrected to 3 oxygen (15 excess air)
BASED ON THE FOLLOWING CONSTITUENT LEVELS
Fuel-bound Nitrogen content = 0015 by weight
Sulfur content = 05 by weight
Ash content = 001 by weight
09-09
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Model CBLE 125-800 HP Boilers
28
ENGINEERING DATA
Sound Level Table A1-20 gives a summary of predicted sound pressure levels for Model CBboilers with 30 ppm LE Options Contact your local Cleaver-Brooks authorizedrepresentative for sound levels or other LE Options
Units - The units for the sound level tables are dbA (decibels measured on the A-weighted scale) in reference to 00002 microbars (20 micro-Newtons per square
meter) Their reference are standardly used in specifying and reporting soundpressure levels on industrial equipment
Test Method - The sound pressure levels in the above tables were obtained fromtests in accordance with the ldquoABMA Test Code for the Measurement of Sound fromPackaged Boilersrdquo In accordance with this code the sound pressure levels reportedwere measured on the boiler centerline 4-12 feet vertically above the bottom of thebase rails and 3 feet horizontally in front of the end of the blower motor or frontsurface of the electrical cabinet
Sound Level Meter - The sound level meter used complies with ANSI S14 Type 1(Precision) The readings are taken with the meter set for slow response andcorrected for background levels
Sound Pressure - The large size boilers the need for auxiliary equipment and thenecessary interconnecting piping make it impractical (and sometimes impossible) toprovide a boiler testing environment which is suitable for taking the data needed todevelop Sound Pressure Power levels
Typical Values - Sound pressure levels (dbA) for the same boiler will vary betweenboiler rooms Sound levels will vary with motor type NOx levels and altitudes Inaddition variations will occur between different people using different sound meterson the same boiler And finally no two boilers can be expected to give precisely thesame sound levels For these reasons we can only predict but not guarantee soundlevels (dbA)
BOILER HP 125 150 200 250 300 350 400 500 600 700 800
HFO dbA 84 84 84 83 84 85 84 85 85 88 90
LFO dbA 82 82 83 81 82 83 82 83 83 84 89
HFG dbA 82 82 83 82 83 84 83 83 85 87 90
LFG dbA 81 81 82 81 82 83 81 81 82 84 88
NOTES1 Sound pressure levels measured on boilers operating in various locations and ex-
pressed in dbA are as shown2 Based on standard altitude fans and fan motors 60 Hz3 Contact your local Cleaver-Brooks authorized representative for sound levels of 60 25or 20 ppm LE Options
ABBREVIATIONS
HF = High Fire LF = Low Fire O = Oil G = Gas
Table A1-20 Model CBLE Predicted Sound Levels 30 ppm NOx Systemss
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Model CBLE 125-800 HP Boilers
29
Gas-Fired Burners Table A1-21 shows gas pressure with standard over- and undersized gas trains
Table A1-22 shows minimum required gas pressure altitude conversion
Figure A1-13 shows standard gas train sizes and locations for Model CB FiretubeBoilers
Figure A1-14 shows typical gas train piping layouts for multiple boiler applications
Figure A1-15 shows standard gas train components
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Model CBLE 125-800 HP Boilers
30
Table A1-21 Standard Undersize and Oversize Gas Trains
CBLE
BOILER HP GAS TRAINSIZE
UPSTREAMVALVE
DOWNSTREAMVALVE
EMISSIONS LEVEL 09 ppm 15 ppm 20 ppm 30 ppm 60 ppm UC
125 HP 15 in BB BB 33 - 49 psi 33 - 49 psi 08 - 50 psi 07 - 50 psi 07 - 50 psi 07 - 50 ps
125 HP 15 in PC PC 34 - 50 psi 34 - 50 psi 09 - 50 psi 08 - 50 psi 08 - 50 psi 08 - 50 ps
125 HP 20 in BB BB 31 - 33 psi 31 - 33 psi 06 - 08 psi 06 - 07 psi 05 - 07 psi 05 - 07 ps
125 HP 20 in PC PC 31 - 34 psi 31 - 34 psi 06 - 09 psi 06 - 08 psi 06 - 08 psi 05 - 08 ps
125 HP 25 in PC PC 30 - 31 psi 30 - 31 psi 04 - 06 psi 04 - 06 psi 04 - 05 psi 04 - 05 ps
125 HP 30 in PC PC 29 - 30 psi 29 - 30 psi 04 - 04 psi 04 - 04 psi 04 - 04 psi 03 - 04 ps
125 HP 40 in PC PC 29 - 29 psi 29 - 29 psi 04 - 04 psi 03 - 04 psi 03 - 04 psi 03 - 03 ps
150 HP 15 in BB BB 37 - 55 psi 39 - 58 psi 10 - 47 psi 09 - 50 psi 09 - 50 psi 09 - 50 ps
150 HP 15 in PC PC 38 - 57 psi 40 - 60 psi 11 - 42 psi 11 - 50 psi 10 - 50 psi 10 - 50 ps
150 HP 20 in BB BB 34 - 37 psi 36 - 39 psi 07 - 10 psi 06 - 09 psi 06 - 09 psi 06 - 09 ps
150 HP 20 in PC PC 34 - 38 psi 36 - 40 psi 07 - 11 psi 07 - 11 psi 07 - 10 psi 06 - 10 ps
150 HP 25 in PC PC 32 - 34 psi 34 - 36 psi 05 - 07 psi 04 - 06 psi 04 - 06 psi 04 - 06 ps
150 HP 30 in PC PC 32 - 32 psi 34 - 34 psi 04 - 05 psi 04 - 04 psi 04 - 04 psi 03 - 04 ps
150 HP 40 in PC PC 31 - 32 psi 33 - 34 psi 04 - 04 psi 03 - 04 psi 03 - 04 psi 03 - 03 ps
200 HP 15 in BB BB 46 - 69 psi 50 - 75 psi 16 - 50 psi 15 - 50 psi 15 - 50 ps
200 HP 15 in PC PC 48 - 72 psi 52 - 78 psi 18 - 50 psi 17 - 50 psi 17 - 50 ps
200 HP 20 in BB BB 41 - 46 psi 45 - 50 psi 10 - 16 psi 10 - 15 psi 10 - 15 ps
200 HP 20 in PC PC 41 - 48 psi 45 - 52 psi 11 - 18 psi 11 - 17 psi 10 - 17 ps
200 HP 25 in PC PC 38 - 41 psi 42 - 45 psi 07 - 10 psi 07 - 10 psi 06 - 10 ps
200 HP 30 in PC PC 36 - 38 psi 40 - 42 psi 06 - 07 psi 05 - 07 psi 05 - 06 ps
200 HP 40 in PC PC 36 - 36 psi 40 - 40 psi 05 - 06 psi 05 - 05 psi 04 - 05 ps
250 HP 15 in BB BB 41 - 62 psi 44 - 67 psi 24 - 50 psi 24 - 27 psi 24 - 26 psi 23 - 26 ps
250 HP 15 in PC PC 45 - 67 psi 48 - 72 psi 28 - 50 psi 27 - 28 psi 27 - 27 psi 27 - 27 ps
250 HP 20 in BB BB 33 - 38 psi 37 - 41 psi 16 - 24 psi 16 - 24 psi 16 - 24 psi 15 - 23 ps
250 HP 20 in PC PC 34 - 40 psi 37 - 43 psi 17 - 28 psi 17 - 27 psi 16 - 27 psi 16 - 27 ps
250 HP 25 in PC PC 29 - 33 psi 32 - 37 psi 11 - 16 psi 11 - 16 psi 11 - 16 psi 10 - 15 ps
250 HP 30 in PC PC 27 - 29 psi 31 - 32 psi 09 - 11 psi 09 - 11 psi 09 - 11 psi 09 - 10 ps
250 HP 40 in PC PC 26 - 27 psi 29 - 31 psi 08 - 09 psi 08 - 09 psi 08 - 09 psi 08 - 09 ps
300 HP 15 in - 20 in BB BB 55 - 83 psi 57 - 85 psi 30 - 50 psi 30 - 36 psi 30 - 35 psi 30 - 35 ps
300 HP 15 in - 20 in PC PC 58 - 87 psi 60 - 90 psi 33 - 50 psi 33 - 37 psi 33 - 36 psi 33 - 36 ps
300 HP 20 in BB BB 46 - 55 psi 47 - 57 psi 21 - 30 psi 21 - 30 psi 20 - 30 psi 20 - 30 ps
300 HP 20 in PC PC 47 - 58 psi 48 - 60 psi 22 - 33 psi 22 - 33 psi 21 - 33 psi 21 - 33 ps
300 HP 30 in PC PC 39 - 46 psi 40 - 47 psi 13 - 21 psi 13 - 21 psi 12 - 20 psi 12 - 20 ps
300 HP 40 in PC PC 37 - 39 psi 39 - 40 psi 11 - 13 psi 11 - 13 psi 10 - 12 psi 10 - 12 ps
350 HP 15 in - 20 in BB BB 64 - 90 psi 62 - 90 psi 42 - 50 psi 42 - 50 psi 41 - 50 psi 41 - 50 ps
350 HP 15 in - 20 in PC PC 68 - 90 psi 66 - 90 psi 46 - 50 psi 46 - 50 psi 45 - 50 psi 45 - 50 ps
350 HP 20 in BB BB 54 - 64 psi 53 - 62 psi 32 - 42 psi 32 - 42 psi 32 - 41 psi 31 - 41 ps
350 HP 20 in PC PC 56 - 68 psi 54 - 66 psi 34 - 46 psi 34 - 46 psi 33 - 45 psi 33 - 45 ps
350 HP 25 in PC PC 43 - 54 psi 42 - 53 psi 21 - 32 psi 21 - 32 psi 20 - 32 psi 20 - 31 ps
350 HP 30 in PC PC 40 - 43 psi 38 - 42 psi 17 - 21 psi 17 - 21 psi 17 - 20 psi 16 - 20 ps
350 HP 40 in PC PC 37 - 40 psi 36 - 38 psi 15 - 17 psi 15 - 17 psi 14 - 17 psi 14 - 16 ps
400 HP 15 in - 20 in BB BB 69 - 90 psi 69 - 90 psi 46 - 50 psi 46 - 50 psi 45 - 50 psi 45 - 50 ps
400 HP 15 in - 20 in PC PC 74 - 90 psi 75 - 90 psi 51 - 87 psi 51 - 77 psi 51 - 77 psi 51 - 77 ps
400 HP 20 in BB BB 55 - 69 psi 56 - 69 psi 32 - 46 psi 32 - 46 psi 32 - 45 psi 32 - 45 ps
400 HP 20 in PC PC 57 - 74 psi 58 - 75 psi 34 - 50 psi 34 - 50 psi 34 - 50 psi 34 - 50 ps
400 HP 25 in PC PC 41 - 55 psi 42 - 56 psi 18 - 32 psi 18 - 32 psi 18 - 32 psi 18 - 32 ps
400 HP 30 in PC PC 37 - 41 psi 38 - 42 psi 13 - 18 psi 13 - 18 psi 13 - 18 psi 13 - 18 ps
400 HP 40 in PC PC 34 - 37 psi 35 - 38 psi 11 - 13 psi 10 - 13 psi 10 - 13 psi 10 - 13 ps
500 HP 20 in - 25 in BB PC 58 - 76 psi 58 - 76 psi 46 - 50 psi 46 - 50 psi 45 - 50 psi 45 - 50 ps
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
31
BB = Butter Ball PC = Plug Cock
NOTE In cases where the gas train increases in size after the regulating valve two diameters are listed The first number is the customer connection size
500 HP 20 in - 25 in PC PC 60 - 83 psi 60 - 83 psi 48 - 50 psi 47 - 50 psi 47 - 50 psi 47 - 50 psi
500 HP 25 in PC PC 39 - 58 psi 39 - 58 psi 27 - 46 psi 27 - 46 psi 27 - 45 psi 26 - 45 psi
500 HP 30 in PC PC 33 - 39 psi 33 - 39 psi 20 - 27 psi 20 - 27 psi 20 - 27 psi 20 - 26 psi
500 HP 40 in PC PC 28 - 33 psi 28 - 33 psi 16 - 20 psi 16 - 20 psi 15 - 20 psi 15 - 20 psi
600 HP 20 in - 25 in BB PC 80 - 90 psi 80 - 90 psi 65 - 90 psi 65 - 90 psi 64 - 89 psi 63 - 88 psi
600 HP 20 in - 25 in PC PC 82 - 90 psi 82 - 90 psi 67 - 100 psi 67 - 100 psi 66 - 99 psi 66 - 99 psi
600 HP 25 in PC PC 54 - 80 psi 54 - 80 psi 39 - 50 psi 38 - 50 psi 38 - 50 psi 37 - 50 psi
600 HP 25 in - 30 in PC PC 52 - 54 psi 52 - 54 psi 37 - 39 psi 36 - 38 psi 35 - 38 psi 35 - 37 psi
600 HP 30 in PC PC 43 - 52 psi 43 - 52 psi 28 - 37 psi 27 - 36 psi 27 - 35 psi 26 - 35 psi
600 HP 40 in PC PC 37 - 43 psi 37 - 43 psi 22 - 28 psi 21 - 27 psi 20 - 27 psi 20 - 26 psi
700 HP 20 in - 30 in BB PC 110 - 150 psi 107 - 150 psi 87 - 131 psi 86 - 130 psi 86 - 129 psi 86 - 128 psi
700 HP 20 in - 30 in PC PC 113 - 150 psi 110 - 150 psi 90 - 135 psi 89 - 134 psi 89 - 134 psi 89 - 133 psi
700 HP 25 in - 30 in PC PC 71 - 90 psi 68 - 90 psi 48 - 50 psi 47 - 50 psi 47 - 50 psi 46 - 50 psi
700 HP 30 in PC PC 60 - 71 psi 57 - 68 psi 36 - 48 psi 36 - 47 psi 35 - 47 psi 35 - 46 psi
700 HP 40 in PC PC 51 - 60 psi 48 - 57 psi 28 - 36 psi 27 - 36 psi 27 - 35 psi 26 - 35 psi
800 HP 20 in - 30 in BB PC 108 - 150 psi 107 - 150 psi 106 - 150 psi
800 HP 20 in - 30 in PC PC 112 - 150 psi 111 - 150 psi 110 - 150 psi800 HP 25 in - 30 in PC PC 61 - 90 psi 60 - 100 psi 59 - 100 psi
800 HP 30 in PC PC 48 - 61 psi 47 - 50 psi 46 - 50 psi
800 HP 40 in PC PC 35 - 48 psi 34 - 47 psi 34 - 46 psi
Standard Gas Train size is highlighted
Table A1-21 Standard Undersize and Oversize Gas Trains (Continued)
CBLE
BOILER HP GAS TRAINSIZE
UPSTREAMVALVE
DOWNSTREAMVALVE
EMISSIONS LEVEL 09 ppm 15 ppm 20 ppm 30 ppm 60 ppm UC
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Model CBLE 125-800 HP Boilers
32
ALTITUDE(FT)
CORRECTIONFACTOR
ALTITUDE(FT)
CORRECTIONFACTOR
1000 104 6000 1252000 107 7000 130
3000 111 8000 135
4000 116 9000 140
5000 121 - -
To obtain minimum required gas pressure at altitudesabove 700 feet multiply the pressure by the listed factorsInches WC x 0577 = ozsq-inOzsq-in x 1732 = Inches WCInches WC x 00361= psigOzsq-in x 00625 = psigPsig x 2771 = Inches WCPsig x 160 = Ozsq-in
Table A1-22 Minimum Required Regulated Gas Pressure
Altitude Conversion
BOILERHP
TYPE OF GAS AND HEAT CONTENT
NATURAL GAS1000 (Btucu-ft)
PROPANE GAS2550 (Btucu-ft)
125 5103 2000
150 6124 2402
200 8165 3202
250 10206 4002
300 12247 4802
350 14280 5600
400 16329 6404
500 20415 8006
600 24494 9605
700 28576 11206
800 32659 12807
Table A1-23 Maximum Gas Consumption (CFH)
for Natural Gas and Propane Vapor
BOILER
HP
MODEL CB
CONNECTION SIZE
(IN NPT)
LOCATIONDIMENSION
ldquoArdquo (IN)
125-200 1-12 52
250-350 2 56
400 2 58
500 2-12 60
600 2-12 - 3 71
700-800 3 65
Figure A1-13 Standard Gas Train Connection Size and Location
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
33
Oil-Fired Burners Fuel oil consumption information is shown on the boiler rating sheets in theDimensions and Rating Section
Figure A1-16 shows the oil connection sizes and locations for Model CB Boilersfiring No 2 oil
Figure A1-17 through Figure A1-18 show typical oil systems and layouts
Figure A1-19 and Figure A1-20 show the detail of an oil transfer tank (day tank)typically utilized to provide a storage reservoir between the oil system supply pumpand the boiler oil pump
General BoilerInformation
Table A1-24 shows blowdown tank sizing information
Table A1-25 provides heating surface information
Table A1-26 provides steam volume and disengaging area information
Table A1-27 provides recommended steam nozzle sizes
Table A1-28 provides recommended non-return valve sizes
Boiler RoomInformation
Figure A1-21 shows typical boiler room length requirements
Figure A1-22 shows typical boiler room width requirements
Figure A1-23 shows typical breeching arrangements
Stack SupportCapabilities
All standard Cleaver-Brooks Firetube Boilers with an LE option can support up to2000 lbs without additional support
LE Boilers 250 hp through 800 hp can be reinforced to support 3000 lbs
StackBreechingSize Criteria
The design of the stack and breeching must provide the required draft at each boilerflue gas outlet Proper draft is critical to burner performance
Although constant pressure at the flue gas outlet of the Model CB-LE is not requiredit is necessary to size the stackbreeching to limit flue gas pressure variation Theallowable pressure range is ndash025 WC to +025 WC
For additional information please review Section I4 General Engineering Data(Stacks) and Section F Stacks Stack and breeching sizes should always be providedby a reputable stack supplier who will design the stack and breeching system basedon the above criteria Your local Cleaver-Brooks authorized representative is capableof assisting in your evaluation of the stackbreeching design
Boiler RoomCombustion Air
When determining boiler room air requirements the size of the room air flow andvelocity of air must be reviewed as follows
1 Size (area) and location of air supply openings in boiler room
A Two (2) permanent air supply openings in the outer walls of the boiler room
are recommended Locate (1) at each end of the boiler room preferablybelow a height of 7 feet This allows air to sweep the length of the boiler
B Air supply openings can be louvered for weather protection but they shouldnot be covered with fine mesh wire as this type of covering has poor air flowqualities and is subject to clogging by dust or dirt
C A vent fan in the boiler room is not recommended as it could create a slightvacuum under certain conditions and cause variations in the quantity ofcombustion air This can result in unsatisfactory burner performance
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
34
D Under no condition should the total area of the air supply openings be lessthan (1) square foot
E Size the openings by using the formulaArea (sq-ft) = CFMFPM
2 Amount of air required (cfm)
A Combustion Air = Rated bhp x 8 cfmbhp
B Ventilation Air = Maximum bhp x 2 cfmbhp
C Total recommended air = 10 cfmbhp - up to 1000 feet elevation Add 3percent more per 1000 feet of added elevation
3 Acceptable air velocity in Boiler Room (fpm)
A From floor to (7) foot height - 250 fpm
B Above (7) foot height - 500 fpm
Example Determine the area of the boiler room air supply openings for (1) 300 hpboiler at 800 feet altitude The air openings are to be 5 feet above floor level
bull Air required 300 x 10 = 3000 cfm (from 2B above)
bull Air velocity Up to 7 feet = 250 fpm (from 3 above)
bull Area Required Area = cfm = 3000250 = 12 sq-ft total
bull AreaOpening 122 = 6 sq-ftopening (2 required)
Notice
Consult local codes which may supersede these requirements
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
35
This figure illustrates the basic gas valve arrangement on Cleaver-BrooksModel CB boiler and shows the contractors connection point The valves andcontrols between the contractor connection point and the gas main in thestreet are representative of a typical installation Actual requirements mayvary depending on local codes or local gas company requirements which
should be investigated prior to preparation of specifications and prior to con-struction
A Utilities service valveB Utilities service regulatorC Gas meterD Piping from meter to boiler
The size of the gas line from the meter to the gas pressure regulator at theboiler can be very important if gas pressures are marginal The gas line sizingis dependent on
1 Gas pressure at outlet of gas meter (C)2 Rate of gas flow required CFH3 Length of pipe run (D)4 Pressure required at contractor connection point
The local gas utility will advise the pressure that is available at the outlet oftheir meter
Figure A1-14 Typical Gas Piping Layout
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Model CBLE 125-800 HP Boilers
36
5
6
S
1
3
42
PILOT GAS LINE
S
S
MAIN GAS LINE
M M
ToBurner
GasSupply
11
10
97
12138
14 15
FLOW
FLOW
Figure A1-15 Model CB-LE Gas Train Components
BOILER
HP
MODEL CB
SUPPLYANDRE-
TURNCONN SIZES
(IN)(NPT)
A(IN)
RECOMMENDED OIL LINEA
SIZES(STANDARD PIPE)
(IN - IPS)
STOR-AGE
TANK TOBOILER
OR PUMPCONNECT
PUMPTO
BOILER
RE-TURN
LINE TOTANK
125150 200
34 12-12 1 1 1
250300350
34 34 1 1 1
400500600
34 11-34 1 1 1
700800
1 11-34 1 1 1
NOTE See No 2 Oil Line Sizing Instruction for systems with other conditions A For suction line condition with a maximum of 10 Feet of lift and a
total of 100 feet of suction line
Figure A1-16 No2 Oil Connection Size Location and Recommended Line Sizes
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
37
Figure A1-17 No 2 Oil Piping Single Boiler
Installation Remote Oil Pump
Figure A1-18 No 2 Oil Piping Multiple Boiler
Installation Remote Oil Pumps
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
38
Figure A1-19 No 2 Oil Piping Multiple Boiler
Installation
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
39
Figure A1-20 No 2 Oil Piping Typical Arrangement
Table A1-24 Model CB-LE Blowdown
Tank Sizing
BOILER HP WATER (GAL)
125 97
150 118
200 145
250 146
300 176
350 210
400 177
500 209
600 250
700 800 296
NOTE Quantity of water removed from boiler by lowering normal water line 4
BOILER
HP
HEATING SURFACE (SQ-FT)
FIRESIDE WATERSIDE
125 625 679
150 750 820
200 1000 1092
250 1250 1346
300 1500 1623
350 1750 1932
400 2000 2151
500 2500 2691
600 3000 3262
700 800 3500 3810
Table A1-25 Heating Surface Model CB-LE
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Model CBLE 125-800 HP Boilers
40
BOILER HPSTEAM VOLUME CU-FT
STEAM DISENGAGING AREASQ-IN
HIGH PRESSUREA LOW PRESSUREB HIGH PRESSUREA LOW PRESSUREB
125 254 366 5371 5887
150 307 443 6511 7138
200 377 544 7985 8752
250 492 706 7980 8695
300 595 853 9651 10516
350 709 1017 11507 12538
400 721 979 9793 10593
500 837 1137 11376 12303
600 1015 1378 13787 14911
700-800 1198 1627 16273 17600
NOTE Based on normal water levelA Based on 150 psig design pressureB Based on 15 psig design pressure
Table A1-26 Steam Volume and Disengaging Area
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Model CBLE 125-800 HP Boilers
41
BOILERHP
BOILERCAPACITY(LBSHR)
OPERATING PRESSURES (PSIG)
50 75 100 125 150 175 200 250
100 3450
2-12 2-12 NA NA NA NA NA NA
125 4313 3 2-12 2-12 2-12 NA NA NA NA
150 5175 3 3 2-12 2-12 2-12 2-12 NA NA
200 6900 3 3 3 3 3 2-12 2-12 2-12
250 8625 4 3 3 3 3 3 3 3
300 10350 4 4 4 3 3 3 3 3
350 12025 4 4 4 4 4 3 3 3
400 13800 5 4 4 4 4 4 4 3
500 17210 6 5 5 4 4 4 4 4
600 20700 6 6 5 5 5 4 4 4
700 24150 6 6 6 5 5 5 5 4
800 27600 6 6 6 6 6 5 5 5
NOTE Valve sizes (300 Flanges) given in inchesStandard Non-Return valve selections limited to a maximum 2 to 1 turndown(50 of full load) selections based on typical non-return valve sizing recommen-dations For final valve selection contact your C-B authorized representative Forhigh turndown applications see Boiler Book Section I3 Table I3-3 Indicates pressure drop of less than 75 psig All other selections are less than6 psig pressure drop
Boiler HP
OPERATINGPRESSURE
PSIG125 150 200 250 300 350 400 500 600 700 800
15 8 8 10 10 12 12 12 12 12 12 12
30 6 6 8 8 8 10 10 10 12 12 12
40 6 6 6 8 8 8 10 10 10 12 12
50 6 6 6 6 8 8 8 10 10 10 12
75 4 4 6 6 6 8 8 8 8 10 10
100 4 4 6 6 6 6 6 8 8 8 10
125 4 4 4 6 6 6 6 8 8 8 8
150 3 3 4 4 6 6 6 6 6 8 8
200 25 3 4 4 4 4 6 6 6 6 6
250 25 3 3 4 4 4 4 6 6 6 6
NOTES1 Steam nozzle sizes given in inches2 Recommended steam nozzle sizes based on 4000 to 5000 fpm steam velocity3 All standard steam nozzle sizes for 150 psig design pressure or greater are the sameas 125 psig operating pressure on the above table To increase or decrease the standardsize request the change with your local Cleaver-Brooks authorized representative4 Shaded area denotes special surge load baffles must be installed to avoid possible wa-ter carry-over5 For incremental operating pressures see Table I3-1 Steam Systems Fundamentals
Table A1-28 Recommended Steam Nozzle Size (for
4000 to 5000 fpm nozzle velocity)
Table A1-29 Recommended Non-Return Valve Size
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Model CBLE 125-800 HP Boilers
42
1 Shortest boiler room length (Dwg A) is obtained by allowing for possible future tube replacement (from front or rearof boiler) through a window or doorway Allowance is only made for minimum door swing at each end of the boilerThis arrangement provides sufficient aisle space at the front of the boiler but a ldquotightrdquo space condition at the rear
If space permits approximately 15 additional feet should be allowed at the rear for additional aisle and workingspace
2 Next shortest boiler room length (Dwg B) is obtained by allowing for possible future tube replacement from thefront of the boiler Allowance is only made for minimum door swing at the rear
If space permits approximately 15 additional feet should be allowed at the rear for additional aisle and workingspace
3 A slightly longer boiler room (Dwg C) is obtained by allowing for possible future tube replacement from the rear ofthe boiler Allowance for door swing at the front provides sufficient aisle and working space at the front
Figure A1-21 Boiler Room Length (Typical Layouts)
BOILER HP 125-200 250-350 400-800
Dimension A 82 93 102
Dimension B 115 141 171
NOTES1 Recommended Minimum Distance Between Boiler and Wall Dimen-
sion ldquoArdquo allows for a ldquoclearrdquo 42 aisle between the water col-umn on the boiler and the wall If space permits this aisle
should be widened 2 Recommended Minimum Distance Between BoilersDimension ldquoBrdquo between boilers allows for a ldquoclearrdquo aisle of42 - 125 -200 hp48 - 250-350 hp60 - 400-800 hpIf space permits this aisle should be widened
Figure A1-22 Boiler Room Width (Typical Layout)
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Model CBLE 125-800 HP Boilers
7262019 CBLE Boiler Book
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2
Model CBLE 125-800 HP Boilers
ILLUSTRATIONS
Figure A1-1 CB-LE Steam - 125-200 HP 6
Figure A1-2 CB-LE Steam - 250-350 HP 8
Figure A1-3 CB-LE Steam - 400-800 HP 10
Figure A1-4 CB-LE Hot Water - 125-200 HP 12
Figure A1-5 CB-LE Hot Water 250-350 HP 14
Figure A1-6 CB-LE Hot Water 400-800 HP 16
Figure A1-7 Space Required to Open Rear Head on Model CB-LE Boilers Equipped with Davits 21
Figure A1-8 Model CB-LE Boiler Mounting Piers (60rdquo and 78rdquo) 21
Figure A1-9 Model CB-LE Boiler Mounting Piers (96rdquo) 22
Figure A1-10 Front Davit Support 22
Figure A1-11 Lifting Lug Location Model CB-LE Boilers 23
Figure A1-12 Predicted Stack Temperature Increase for Pressure Greater Than 125 psig 26
Figure A1-13 Standard Gas Train Connection Size and Location 32
Figure A1-14 Typical Gas Piping Layout 35
Figure A1-15 Model CB-LE Gas Train Components 36
Figure A1-16 No2 Oil Connection Size Location and Recommended Line Sizes 36Figure A1-17 No 2 Oil Piping Single Boiler Installation Remote Oil Pump 37
Figure A1-18 No 2 Oil Piping Multiple Boiler Installation Remote Oil Pumps 37
Figure A1-19 No 2 Oil Piping Multiple Boiler Installation 38
Figure A1-20 No 2 Oil Transfer Tank Detail 38
Figure A1-21 Typical Arrangement 39
Figure A1-22 Boiler Room Length (Typical Layouts) 41
Figure A1-23 Boiler Room Width (Typical Layout) 41
Figure A1-24 Breeching Arrangement 42
TABLES
Table A1-1 Model CB-LE Steam Boiler Ratings 5Table A1-2 Model CB-LE Hot Water Boiler Ratings 5
Table A1-3 Model CB-LE Steam Boiler Dimensions60rdquo (15 - 150 psig Design Pressure) 6
Table A1-4 Model CB-LE Steam Boiler Dimensions78rdquo (15 - 150 psig Design Pressure) 8
Table A1-5 Model CB-LE Steam Boiler Dimensions96rdquo (15 - 150 psig Design Pressure) 10
Table A1-6 Model CB-LE Hot Water Boiler Dimensions60rdquo (30 and 125 psig Design Pressure) 12
Table A1-7 Model CB-LE Hot Water Boiler Dimensions78rdquo (30 and 125 psig Design Pressure) 14
Table A1-8 Model CB-LE Hot Water Boiler Dimensions96rdquo (30 and 125 psig Design Pressure) 16
Table A1-9 Blower Motor Selection - Steam Boilers O 150 psig all HW boilers 18
Table A1-10 Blower Motor Selection - Steam Boilers gt150 psig 18
Table A1-11 Blower Motor Selection CB-LE NTI Boilers 18
Table A1-12 Turndown Guarantee for CB-LE NTI Boilers - Natural Gas amp 2 Oil 18
Table A1-13 Model CB-LE Boiler Weights 19
Table A1-14 Steam Boiler Safety Valve Openings 20
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
3
Table A1-15 Hot Water Boiler Relief Valve Openings 20
Table A1-16 Predicted Fuel-to-Steam Efficiencies - Natural Gas 26
Table A1-17 Predicted Fuel-to-Steam Efficiencies - No 2 Oil 27
Table A1-18 CB-LE Boilers - Natural Gas Emission Levels 27
Table A1-19 CB-LE Boilers - No 2 Oil Emission Levels 27
Table A1-20 Model CB-LE Predicted Sound Levels 30 ppm NOx Systems 28Table A1-21 Standard Undersize and Oversize Gas Trains Model CB-LE Boilers 30
Table A1-22 Recommended NTI Gas Train Sizes amp Pressure Ranges 31
Table A1-23 Minimum Required Regulated Gas Pressure Altitude Conversion 32
Table A1-24 Maximum Gas Consumption (CFH) for Natural Gas and Propane Vapor 32
Table A1-25 Model CB-LE Blowdown Tank Sizing 39
Table A1-26 Heating Surface Model CB-LE Boilers 39
Table A1-27 Steam Volume amp Disengaging Area 40
Table A1-28 Recommended Steam Nozzle Size 40
Table A1-29 Recommended Non-Return Valve Size 40
The Low Emission feature combines the packaging of induced flue gas recirculation with the Cleaver-Brooks integralfront head The front head routes the flue gases from the fourth pass to the fan and burner assembly for reliable low
NOx performance The enhanced burner design assures maximum NOx reduction at all firing rates while maintaining
top of the line boiler performance
Standard Low Emission Options include 60 30 25 or 20 ppm packages (all NOx emission levels are given on a dry
volume basis and corrected to 3 O2)
bull NOx performance for 60 ppm (natural gas corrected to 3 O2) uses a standard size combustion air fan for
induced flue gas recirculation
bull NOx performance for 30 25 or 20 ppm (natural gas corrected to 3 O2) includes a larger combustion air fan
motor assembly and a larger internal NOx reduction system
Cleaver-Brooks commitment to lowering emissions is based on more than 400 low NOx installations - all passing guar-
anteed emission performance levels
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
4
FEATURES AND BENEFITS
The Cleaver-Brooks Model CB Boiler - the premium firetube on the market today -includes the four-pass dryback design five square feet of heating surface per boilerhorsepower and maximum boiler efficiency In addition to the features of the ModelCB Boiler the Low Emission Option provides the following
Integral Front Head Designbull Single-piece front door
bull Fan cassette assembly for easy access to fan and motor
bull Guaranteed low nitrogen oxide (NOx) performance
bull Enhanced burner performance
bull Improved flame stability and combustion control
bull Intimate mixing of air and fuel assures minimum CO levels at low NOx levels
True BoilerBurnerLow NOx Package
bull ULULC approved package
bull Assures highest fuel-to-steam efficiencybull Eliminates the need for field installation of burner controls or NOx equipment
bull Single point positioning of fuel and air ensures ease of startup and providesreliable operation
PRODUCT OFFERING
The Low Emission Option currently is available on
bull 125 - 800 hp Model CB Firetube Dryback Boilers
bull High-pressure and low-pressure steam and hot water designs
bull Natural Gas No 2 oil or combination fired
bull Retrofit capability
Standard Equipment bull Model CB Firetube Boiler
bull New integral front head with internal low NOx system
bull Enhanced burner design
Available Options For option details contact your local Cleaver-Brooks authorized representative
bull Full line of Model CB Firetube options
bull Additional NOx reduction packages
DIMENSIONS AND RATINGS
The Model CB-LE dimensions and ratings are provided inTable A1-1 through TableA1-8 and in Figure A1-1 through Figure A1-6
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
5
BOILER HP 125 150 200 250 300 350 400 500 600 700 800
POWER REQUIREMENTS - SEA LEVEL TO 700 FT 60 HZ
Rated Cap Btu Output (1000 Btuhr) 4184 5021 6695 8369 10043 11716 13390 16738 20085 23433 26780
APPROXIMATE FUEL CONSUMPTON AT RATED CAPACITY
Light Oil (gph)A 364 437 583 729 875 1021 1166 1458 1750 2041 2333
Natural Gas (cfh) MBtu 5103 6123 8165 10206 12247 14288 16329 20412 24494 28576 32659
Gas (Thermhr) 510 612 816 1021 1225 1429 1633 2041 2449 2858 3266
POWER REQUIREMENTS - SEA LEVEL TO 700 FT 60 HZ
Blower Motor hp Refer to Tables A1-9 and A1-10
Oil Pump Motor hp No 2 Oil 12 12 12 12 34 34 34 34 34 1 1
Air Compressor Motor hp (Oil firing Only) 3 3 3 5 5 5 7-12 7-12 7-12 7-12 7-12
NOTES
A Based on 140000 Btugal
Table A1-2 Model CB-LE Hot Water Boiler Ratings
BOILER HP 125 150 200 250 300 350 400 500 600 700 800
RATINGS SEA LEVEL TO 700 FT
Rated Steam Cap (lbshr from and 212
degF)
4313 5175 6900 8625 10350 12075 13800 17250 20700 24150 27600
Btu Output (1000 Btuhr) 4184 5021 6695 8369 10043 11716 13390 16738 20085 23433 26780
APPROXIMATE FUEL CONSUMPTION AT RATED CAPACITY
Light Oil (gph)A 364 437 583 729 875 1021 1166 1458 1750 2041 2333
Natural Gas (cfh) MBtu 5103 6123 8165 10206 12247 14288 16329 20412 24494 28576 32659
Gas (Thermhr) 510 612 816 1021 1225 1429 1633 2041 2449 2858 3266
POWER REQUIREMENTS - SEA LEVEL TO 700 FT 60 HZ
Blower Motor hp Refer to Tables A1-9 and A1-10
Oil Pump Motor hp No 2 Oil 12 12 12 12 34 34 34 34 34 1 1
Air Compressor Motor hp (Oil firing Only) 3 3 3 5 5 5 7-12 7-12 7-12 7-12 7-12
NOTES
A Based on 140000 Btugal
Table A1-1 Model CB-LE Steam Boiler Ratings
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 643
Model CBLE 125-800 HP Boilers
6
A
B
C D
E
F
G
H I J
KL
M Y
N
O
P Q
R S
T
UV
W
X
Y AA
BB CC DD EE
GG
HH
HH
JJ
GG
GG
JJ
KK
FF FARSIDE
Table A1-3 Model CB-LE Steam Boiler Dimensions
60rdquo (15 - 150 psig Design Pressure) - Sheet 1 of 2
(measurements shown in inches)
Description DIMBoiler HP
125 150 200
LENGTHS
Length Overall A 173 1965 2285
Shell B 125 149 180
Front Head Extension C 28 28 29
Front Ring Flange to Nozzle - 15 D 88 90 96
Front Ring Flange to Nozzle - 150 D 84 84 96
Rear Head Extension E 195 195 195
Front Ring Flange to Panel G 17 17 17Ring Flange to Base H 05 05 05
Base Frame I 112 136 167
Rear Flange Ring to Base J 125 125 125
HEIGHTS
Ht Overall K 87 87 87
Base to Vent Outlet L 87 87 87
Base to Boiler Centerline M 46 46 46
Base to Gas Train N 6 85 85
Figure A1-1 CB-LE Steam - 125-200 HP
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
7
Description DIM Boiler HP
125 150 200
HEIGHTS (continued)
Base to Panel Top T 75 75 77Base to Panel Bottom U 15 15 17
Height of Base V 12 12 12
Base to Steam Nozzle Y 8238 8238 8238
WIDTHS
Width Overall O 8988 89875 905
Center to ALWCO P 3875 3875 3875
Center to Outside Control Panel Q 485 485 485
Center to Lagging R 33 33 33
Center to WC S 445 45 45
Base Inside W 445 445 445
Base Outside X 525 525 525
Boiler ID F 60 60 60
CONNECTIONSElectric - Main Power Supply AA 460 3 60 460 3 60 460 3 60
Surface Blowoff (with collector pipe) BB 1 1 1
Steam Outlet 15 (150 Flange) CC 8 8 10
Steam Outlet 150 (300 Flange) CC 4 4 4
Chemical Feed FF 1 1 1
Feed Water (2) GG 15 15 2
Blowdown (2) 150 HH 15 15 15
Drain (2) 15 HH 15 15 2
Water Column Blowdown JJ 075 075 075
Gauge Glass Blowdown KK 025 025 025
VENT STACK
Diameter (OD) (flgd connection) 16 16 16
CLEARANCES
Rear Door Swing (Davited) 32 32 32
Front Door Swing 67 67 67
Tube Removal Rear 115 139 170
Tube Removal Front 103 127 158
MINIMUM BOILER ROOM LENGTH ALLOWING FOR DOOR SWING AND TUBE REMOVAL
From Rear of Boiler 307 355 417
From Front of Boiler 260 308 370
Through Window or Doorway 224 248 279
WEIGHT IN LBS
Normal Water Capacity 5750 7250 8625
Approx Ship Wt 15 psig 11300 12600 14600
Approx Ship Wt 150 psig 12400 13500 15600
Approx Ship Wt 200 psig 13000 14200 16400
Table A1-3 Model CB-LE Steam Boiler Dimensions 60rdquo (15 - 150 psig Design Pressure) - Sheet 2 of 2
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 843
Model CBLE 125-800 HP Boilers
8
A
BC
D
E
F
G
H I J
K
L
M
N
O
P QR S
T
UV
W
X
Y
AA
BBCC
DD
EE
FF
GG
HH
HH
JJ
JJ
KK
GG
GG
Y
FARSIDE
(measurements shown in inches)
Description DIM
Boiler HP
250 300 350
LENGTHS
Length Overall A 1915 220 250
Shell B 144 171 201
Front Head Extension C 235 25 25
Front Ring Flange to Nozzle - 15 D 90 98 112
Front Ring Flange to Nozzle - 150 D 88 98 112
Rear Head Extension E 24 24 24
Front Ring Flange to Panel G 17 23 23
Ring Flange to Base H 05 05 05
Base Frame I 131 158 188
Rear Flange Ring to Base J 125 125 125
HEIGHTS
Ht Overall K 115 115 115
Base to Vent Outlet L 106 106 106Base to Boiler Centerline M 56 56 56
Base to Gas Train N 10 10 10
Base to Panel Top T 77 77 77
Base to Panel Bottom U 17 17 17
Height of Base V 12 12 12
Base to Steam Nozzle Y 10150 10150 10150
Table A1-4 Model CB-LE Steam Boiler Dimensions
78rdquo (15 - 150 psig Design Pressure) - Sheet 1 of 2
Figure A1-2 CB-LE Steam - 250-350 HP
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 943
Model CBLE 125-800 HP Boilers
9
Description DIM Boiler HP
250 300 350
WIDTHS
Width Overall O 1065 1065 10875Center to ALWCO P 485 485 485
Center to Outside Control Panel Q 58 58 58
Center to Lagging R 42 42 42
Center to WC S 5375 5375 5375
Base Inside W 56 56 56
Base Outside X 64 64 64
Boiler ID F 78 78 78
CONNECTIONS
Electric - Main Power Supply AA 460 3 60 460 3 60 460 3 60
Surface Blowoff (with collector pipe) BB 1 1 1
Steam Outlet 15 (150 Flange) CC 12 12 12
Steam Outlet 150 (300 Flange) CC 6 6 6
Chemical Feed FF 1 1 1
Feed Water (2) GG 2 2 25Blowdown (2) 150 HH 15 15 15
Drain (2) 15 HH 2 2 2
Water Column Blowdown JJ 075 075 075
Gauge Glass Blowdown KK 025 025 025
VENT STACK
Diameter (OD) (flgd connection) 20 20 20
CLEARANCES
Rear Door Swing 43 43 43
Front Door Swing 89 89 89
Tube Removal Rear 131 157 187
Tube Removal Front 116 142 172
MINIMUM BOILER ROOM LENGTH ALLOWING FOR DOOR SWING AND TUBE REMOVAL
From Rear of Boiler 364 417 477
From Front of Boiler 303 356 416
Through Window or Doorway 275 302 332
WEIGHT IN LBS
Normal Water Capacity 10670 13000 15465
Approx Ship Wt 15 psig 21500 23600 26800
Approx Ship Wt 150 psig 22800 25200 27800
Approx Ship Wt 200 psig 24600 27200 29300
Table A1-4 Model CB-LE Steam Boiler Dimensions 78rdquo (15 - 150 psig Design Pressure) - Sheet 2 of 2
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 1043
Model CBLE 125-800 HP Boilers
10
A
BC
D
E
F
G
HI J
K
AA
BB CC
DD
EE
FF
JJ
GG
HH HH
L
M
N
O
P Q
R S
T
UV
W
X
Y
JJ
JJ
KK
GGGG
Y
FARSIDE
Table A1-5 Model CB-LE Steam Boiler Dimensions
96rdquo (15 - 150 psig Design Pressure) - Sheet 1 of 2
(measurements shown in inches)
Description DIMBoiler HP
400 500 600 700 800
LENGTHS
Length Overall A 20575 22775 25975 29875 29875
Shell B 14675 1675 19975 23275 23275
Front Head Extension C 27 28 28 34 34
Front Ring Flange to Nozzle - 15 D 98 101 96 112 112
Front Ring Flange to Nozzle - 150 D 96 100 96 112 112
Rear Head Extension E 32 32 32 32 32
Front Ring Flange to Panel G 26 26 26 26 26
Ring Flange to Base H 05 05 05 05 05
Base Frame I 13375 15475 18675 21975 21975
Rear Flange Ring to Base J 125 125 125 125 125
Figure A1-3 CB-LE Steam - 400-800 HP
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 1143
Model CBLE 125-800 HP Boilers
11
Description DIM Boiler HP
400 500 600 700 800
HEIGHTS
Ht Overall K 134 134 134 134 134Base to Vent Outlet L 126 126 126 126 126
Base to Boiler Centerline M 67 67 67 67 67
Base to Gas Train N 12 12 12 12 12
Base to Panel Top T 75 75 75 75 75
Base to Panel Bottom U 15 15 15 15 15
Height of Base V 12 12 12 12 12
Base to Steam Nozzle Y 1215 1235 1215 121 121
WIDTHS
Width Overall O 124 12425 124 124 124
Center to ALWCO P 575 575 575 575 575
Center to Outside Control Panel Q 665 665 665 665 665
Center to Lagging R 51 51 51 51 51
Center to WC S 63 63 63 63 63
Base Inside W 5888 5888 5888 5888 5888
Base Outside X 7188 7188 7188 7188 7188
Boiler ID F 96 96 96 96 96
CONNECTIONS
Electric - Main Power Supply AA 460 3 60 460 3 60 460 3 60 460 3 60 460 3 60
Surface Blowoff (with collector pipe) BB 1 1 1 1 1
Steam Outlet 15 (150 Flange) CC 12 12 12 12 12
Steam Outlet 150 (300 Flange) CC 6 8 8 8 8
Chemical Feed FF 1 1 1 1 1
Feed Water (2) GG 25 25 25 25 25
BlowdownDrain (2) HH 2 2 2 2 2
Water Column Blowdown JJ 075 075 075 075 075
Gauge Glass Blowdown KK 025 025 025 025 025
VENT STACK
Diameter (OD) (flgd connection) 24 24 24 24 24
CLEARANCES
Rear Door Swing 53 53 53 53 53Front Door Swing 108 108 108 108 108Tube Removal Rear 131 152 184 217 217
Tube Removal Front 114 135 167 200 200
MINIMUM BOILER ROOM LENGTH ALLOWING FOR DOOR SWING AND TUBE REMOVAL
From Rear of Boiler 386 428 492 558 558
From Front of Boiler 314 356 420 486 486
Through Window or Doorway 308 329 361 394 394
WEIGHT IN LBS
Normal Water Capacity 14810 15950 19270 23000 23000
Approx Ship Wt 15 psig 33500 37110 42300 49500 49600 Approx Ship Wt 150 psig 36570 39970 45025 52050 52150
Approx Ship Wt 200 psig 39680 43580 49400 57315 57415
Table A1-5 Model CB-LE Steam Boiler Dimensions
96rdquo (15 - 150 psig Design Pressure) - Sheet 2 of 2
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 1243
Model CBLE 125-800 HP Boilers
12
BOILER HP DIM 125 150 200
LENGTHS
Overall (60 ppm System) A 171-12 196-12 228-12
Shell B 125 149 180
Base Frame C 112 136 167
Front Head Extension (60 ppm System) D 27 28 29
Rear Head Extension E 19-12 19-12 19-12
Front Ring Flange to Outlet HH 114 136 167
Front Ring Flange to Return H 89 102 131
Ring Flange to Base F 12 12 12
Over Tubesheets V 113 137 168
Shell Extension P 12 12 12
Rear Flange Ring to Base G 12-12 12-12 12-12
Table A1-6 Model CB-LE Hot Water Boiler Dimensions
60rdquo (30 and 125 psig Design Pressure) - Sheet 1 of 2
Figure A1-4 CB-LE Hot Water - 125-200 HP
R
F G
WW
P
BB
D E
GG
Q
Z
Y T U
RR - RF - RD
X
HH
A
B
HI
L K
OO O
KK
M
N
EE
FF
DD
V
J
C
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 1343
Model CBLE 125-800 HP Boilers
13
BOILER HP DIM 125 150 200
WIDTHS
Overall I 75-12 75-12 75-12
ID Boiler J 60 60 60
Center to Entrance Box K 42-12 42-12 42-12
Center to Outside Hinge KK 35 35 35
Center to Lagging L 33 33 33
Base Outside M 52-12 52-12 52-12
Base Inside N 44-12 44-12 44-12
HEIGHTS
Overall OO 87 87 87
Base to Vent Outlet O 87 87 87
Base to Return and Outlet X 82-38 82-38 82-38
Height of Base Q 12 12 12
Base to Bottom of Boiler R 16 16 16
BOILER CONNECTION
Auxiliary Connection Z 1 1 1
Water Return Flange T 6A 6A 6A
Water Outlet Flange (2 Dip Tube Included) U 6A 6A 6A
Drain Front and Rear W 1-12 1-12 2
Air Vent Y 1-12 1-12 1-12
VENT STACK
Diameter (flgd connection) BB 16 16 16
MINIMUM CLEARANCES
Rear Door Swing DD 32 32 32
Front Door Swing EE 67 67 67
Tube Removal Rear FF 115 139 170Tube Removal Front GG 103 127 158
MINIMUM BOILER ROOM LENGTH ALLOWING FOR DOOR SWING AND TUBE REMOVAL FROM
Rear of Boiler RR 307 355 417
Front of Boiler RF 260 308 370
Thru Window or Doorway RD 224 248 279
WEIGHT IN LBS
Water Capacity Flooded 7670 9295 11130
Approx Ship Wgt ndash 30 psigApprox Ship Wgt ndash 125 psig
1140011800
1250012900
1450014900
NOTES All connections are threaded unless indicatedA ANSI 150 psig flange
Table A1-6 Model CB-LE Hot Water Boiler Dimensions
60rdquo (30 and 125 psig Design Pressure) - Sheet 2 of 2
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 1443
Model CBLE 125-800 HP Boilers
14
BOILER HP DIM 250 300 350
LENGTHS
Overall (60 ppm System) A 191-12 220 252
Shell B 144 171 201
Base Frame C 131 158 188
Front Head Extension (60 ppm System) D 23-12 25 27
Rear Head Extension E 24 24 24
Front Ring Flange to Return H 103-12 130 160
Front Ring Flange to Outlet HH 131 158 188
Ring Flange to Base F 12 12 12
Over Tubesheets V 129 156 186
Shell Extension P 15 15 15
Rear Flange Ring to Base G 12-12 12-12 12-12
Table A1-7 Model CB-LE Hot Water Boiler Dimensions78rdquo (30 and 125 psig Design Pressure) - Sheet 1 of 2
Figure A1-5 CB-LE Hot Water 250-350 HP
s k o o r B r e v a
e l C
R
F G
WW
P
BB
D E
GG
Q
Z
Y T U
RR - RF - RD
X
HH
A
B
HI
L K
OOO
KK
M
N
EE
FF
DD
V
J
C
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 1543
Model CBLE 125-800 HP Boilers
15
BOILER HP DIM 250 300 350
WIDTHS
Overall I 93 93 93
ID Boiler J 78 78 78
Center to Entrance Box K 51 51 51
Center to Outside Hinge KK 51 51 51
Center to Lagging L 42 42 42
Base Outside M 64 64 64
Base Inside N 52 52 52
HEIGHTS
Overall OO 115 115 115
Base to Vent Outlet O 106 106 106
Base to Return and Outlet X 101-12 101-12 101-12
Height of Base Q 10 10 10
Base to Bottom of Boiler R 17 17 17
BOILER CONNECTION
Auxiliary Connection Z 1-14 1-14 1-14
Water Return Flange (2 Dip Tube included) T 8A 8A 8A
Water Outlet Flange (2 Dip Tube Included) U 8A 8A 8A
Air Vent Y 1-12 1-12 1-12
Drain Front and Rear W 2 2 2
VENT STACK
Diameter (flgd connection) BB 20 20 20
MINIMUM CLEARANCES
Rear Door Swing DD 43 43 43
Front Door Swing EE 89 89 89
Tube Removal Rear FF 131 157 187
Tube Removal Front GG 116 142 172
MINIMUM BOILER ROOM LENGTH ALLOWING FOR DOOR SWING AND TUBE REMOVAL FROM
Rear of Boiler RR 364 417 477
Front of Boiler RF 303 356 416
Thru Window or Doorway RD 275 302 332
WEIGHT IN LBS
Water Capacity Flooded 13880 16840 20090
Approx Ship Wgt ndash 30 psigApprox Ship Wgt ndash 125 psig
2140022200
2350024300
2670027500
NOTES All connections are threaded unless indictedA ANSI 150 psig flange
Table A1-7 Model CB-LE Hot Water Boiler Dimensions
78rdquo (30 and 125 psig Design Pressure) - Sheet 2 of 2
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 1643
Model CBLE 125-800 HP Boilers
16
BOILER HP DIM 400 500 600 700 800
LENGTHS
Overall (60 ppm System) A 206 228 262 299 300
Shell B 147 168 200 233 233
Base Frame C 134 155 187 220 220
Front Head Extension (60 ppm System) D 27 28 30 34 35
Rear Head Extension E 32 32 32 32 32
Shell Ring Flange to Base F 12 12 12 12 12
Rear Ring Flange to Base G 12-12 12-12 12-12 12-12 12-12
Shell Flange to Outlet HH 139-12 156-12 182-12 216-12 216-12
Shell Flange to Return H 107 125 151-12 185 185
Over Tubesheets V 130 151 183 216 216
Shell Extension P 17 17 17 17 17
Table A1-8 Model CB-LE Hot Water Boiler Dimensions96rdquo (30 and 125 psig Design Pressure) - Sheet 1 of 2
Figure A1-6 CB-LE Hot Water 400-800 HP
s k o o r B r e v a
e l C
R
F G
WW
P
BB
D E
GG
Q
Z
Y T U
RR - RF - RD
X
HH
A
B
HI
L K
OOO
KK
M
N
EE
FF
DD
V
J
C
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 1743
Model CBLE 125-800 HP Boilers
17
WIDTHS
Overall I 113 113 113 113 115
ID Boiler J 96 96 96 96 96
Center to Entrance Box K 62 62 62 62 64
Center to Outside Hinge KK 62 62 62 62 62
Center to Lagging L 51 51 51 51 51
Base Outside M 72 72 72 72 72
Base Inside N 56 56 56 56 56
HEIGHTS
Overall OO 134 134 134 134 134
Base to Vent Outlet O 126 126 126 126 126
Height of Base Q 12 12 12 12 12
Base to Bottom of Boiler R 19 19 19 19 19
Base to Return and Outlet X 121-916 121-916 121-916 121-916 121-916
BOILER CONNECTIONS
Auxiliary Connection Z 1-14 1-14 1-14 1-14 1-14
Drain Front and Rear W 2 2 2 2 2
Water Return T 10A 10A 12A 12A 12A
Water Outlet (2rdquo Dip Tube Included) U 10A 10A 12A 12A 12A
Air Vent Y 2 2 2 2 2
VENT STACK
Diameter (Flanged Connection) BB 24 24 24 24 24
MINIMUM CLEARANCES
Rear Door Swing DD 53 53 53 53 53
Front Door Swing EE 108 108 108 108 108
Tube Removal Rear FF 131 152 184 217 217
Tube Removal Front GG 114 135 167 200 200
MINIMUM BOILER ROOM LENGTH ALLOWING FOR DOOR SWING AND TUBE REMOVAL FROM
Rear of Boiler RR 386 428 492 558 558
Front of Boiler RF 314 356 420 486 486
Thru Window or Doorway RD 308 329 361 394 394
WEIGHT IN LBS
Normal Water Capacity 20015 23300 28260 33360 33360
Approx Ship Wgt ndash 30 psig
Approx Ship Wgt ndash 125 psig
33300
37270
36900
40780
42150
46005
49650
53300
49750
53400
NOTES All connections are threaded unless indicated
A ANSI 150 psig flange
BOILER HP DIM 400 500 600 700 800
Table A1-8 Model CB-LE Hot Water Boiler Dimensions
96rdquo (30 and 125 psig Design Pressure) - Sheet 2 of 2
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 1843
Model CBLE 125-800 HP Boilers
18
BOILER HP
MOTOR HP
60PPM
30PPM
25PPM
20PPM
125 5 10 5 10
150 75 10 10 10
200 15 15 20 NA
250 75 10 15 15
300 10 15 20 30
350 15 25 40 40
400 10 15 20 20
500 15 20 25 30
600 25 30 50 60
700 30 50 75 75
800 50 75 NA NA
NOTES For elevations above 700rsquo - contact your local
Cleaver-Brooks authorized representative
Table A1-9 Model CB-LE Blower Motor Selection -
Operating Pressures 150 psig and Less and All Hot
Water Boilers
BOILER HP
MOTOR HP
60
PPM
30
PPM
25
PPM
20
PPM
125 5 10 10 10
150 10 10 10 15
200 15 20 20 NA
250 75 10 15 20
300 10 20 30 40
350 20 30 40 50
400 10 15 20 25
500 20 25 30 40
600 25 40 60 60
700 40 60 75B 75C
800 60 75A NA NA
NOTES For elevation above 700rsquo - contact your local
Cleaver-Brooks authorized representative
A Downrate to 770 hp
B Downrate to 675 hp
C Downrate to 660 hp
Table A1-10 Model CB-LE Blower Motor Selection -
Operating Pressures Greater than 150 psig (Steam
Boilers)
09-09
Table A1-11 Blower Motor Selection CB-LE NTI BoilersTable A1-12 Turndown Guarantee for CB-LE NTI
Boilers - Natural Gas amp 2 Oil
Boiler SizeTurndown
9 ppm 15 ppm
125 41 41
150 41 51
200 41 51
250 51 51
300 51 51
350 51 51
400 51 61
500 51 61
600 61 61
700 71 71
800 71 71
800 HP to be derated to 720 HP for 9 ppm and 750 HP
for 15 ppm
Altitude 700 ft and less - Design Pressure 150 psi and less
800 HP - to be de-rated to 720 HP for 9 ppm and to 750 HP for 15 ppm
mpp9mpp51Nominal
Boiler Size Blower Motor HP Blower Motor HP
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
19
BOILER HPFUEL
SERIES
HOT WATER STEAM
30 PSIG 125 PSIG 15 PSIG 150 PSIG 200 PSIG
125100 11200 11600 11300 12000 12600200 11400 11800 11500 12400 13000
700 11300 11700 11400 12300 12900
150
100 12300 12700 12400 13200 13900
200 12500 12900 12600 13500 14200
700 12300 12700 12400 13300 14000
200
100 14400 14800 14500 15500 16300
200 14500 14900 14600 15600 16400
700 14500 14900 14600 15600 16400
250
100 20700 21500 20800 22000 23800
200 21400 22200 21500 22800 24600
700 20900 21700 21000 22500 24300
300
100 23100 23900 23200 24800 26800
200 23500 24300 23600 25200 27200
700 23400 24200 23500 25000 27000
350
100 26200 27000 26300 27600 29100
200 26700 27500 26800 27800 29300
700 26400 27200 26500 27700 29200
400
100 33000 36970 33200 36270 39380
200 33300 37270 33500 36570 39680
700 33200 37170 33400 36470 39580
500
100 36600 40470 36810 39670 43480
200 36900 40780 37110 39970 43580
700 36800 40680 37010 39870 43280
600
100 41850 45905 42000 44725 49100
200 42150 46005 42300 45025 49400
700 42050 45915 42200 44925 49300
700800
100 49450 53000 49300 51850 57015
200 49750 53300 49600 52150 57315
700 49650 53200 49500 52050 57215
NOTES1 Weights shown are based on standard product offering for current listed boilers If units are of special design and construction actual weightwill be determined at time of shipment Shipment will then be made on shippers weight and count All weights are in US pounds
Table A1-13 Model CB-LE Boiler Weights
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 2043
Model CBLE 125-800 HP Boilers
20
VALVE
SETTING15 PSIG STEAM 100 PSIG STEAM 125 PSIG STEAM 150 PSIG STEAM 200 PSIG STEAM 250 PSIG STEAM 300 PSIG STEAM
BOILERHP
NO OF
VALVES-REQD
OUTLET
SIZE(IN)
NO OF
VALVES-REQD
OUTLET
SIZE(IN)
NO OF
VALVESREQD
OUTLET
SIZE(IN)
NO OF
VALVES-REQD
OUTLET
SIZE(IN)
NO OF
VALVES-REQD
OUTLET
SIZE(IN)
NO OF
VALVESREQD
OUTLET
SIZE(IN)
NO OF
VALVESREQD
OUTLET
SIZE(IN)
125 1 3 2 1-12 2(1) 1-12(1) 1-14
2(1) 1-12(1) 1-14
2(1) 1-14(1) 1
2 1 2 1
150 1 3 2(1) 2(1) 1-12
2 1-14 2(1) 1-12(1) 1-14
2(1) 1(1) 1-14
2 1 2 1
200 2 2-12 2 2 2 1-12 2 1-12 2(1) 1-12(1) 1-14
2 1-14 2(1) 1(1) 1-14
250 2(1) 2-12(1) 3
2(1) 2-12(1) 2
2(1)2(1)1-12
2(1) 2(1) 1-12
2(1)1-12(1)1-14
2(1) 1-12(1) 1-14
2 1-14
300 2 3 2(1) 2-12(1) 2
2 2 2(1) 2(1) 1-12
2 1-12 2(1)1-12(1)1-14
2(1) 1-12(1) 1-14
350 3(1) 2(2) 3
3(1) 2-12(2) 2
2(1)2(1)1-12
2 2 2(1) 1-12(1) 2
2 1-12 2(1) 1-12(1) 1-14
400 3(2) 3(1) 2-12
3(1) 2(2) 2-12
2(1)2(1)2-12
2(1) 2-12(1) 2
2(1) 1-12(1) 2
2(1) 2(1) 1-12
2 1-12
500 3 (3) 3 3 2-12 2 2-12 2(1) 2-12(1) 2
2(1) 2(1) 2-12
2(1) 2(1)1-12
2(1) 1-12(1) 2
600 4 3 4(3) 2-12(1) 2
3 2-12 2 2-12 2(1) 2(1) 2-12
2 2 2 2
700 5(3) 3(2) 2-12
5(3) 2-12(2) 2
3 2-12 3(2) 2-12(1) 2
2 2-12 2(1) 2(1) 2-12
2 2
800 5(3) 3(2) 2-12
5(3) 2-12(2) 2
4(3) 2-12(1) 2
3(2) 2-12(1) 2
2 2-12 2(1) 2(1) 2-12
2(1) 2(1) 2-12
NOTES Valve manufacturers are Kunkle Consolidated or Conbraco depending on availability This table revised 042012
Table A1-14 Steam Boiler Safety Valve Openings
VALVE
SETTING 30 PSIG HW 60 PSIG HW 100 PSIG HW 125 PSIG HW
BOILER HPNO OF
VALVESREQD
OUTLETSIZE(IN)
NO OFVALVESREQD
OUTLETSIZE(IN)
NO OFVALVESREQD
OUTLETSIZE(IN)
NO OFVALVESREQD
OUTLETSIZE(IN)
125 1 2-12 1 2 1 2 1 1-14
150 1 2-12 1 2-12 1 2 1 2
200 2(1) 2-12(1) 1-14
1 2-12 1 2 1 2
250 2 (1) 2(1) 2-12
1 2-12 1 2-12 1 2
300 2 2-12 2(1) 1(1) 2-12
1 2-12 1 2-12
350 3(2) 2-12(1) 1
2(1) 2-12(1) 2
1 2-12 1 2-12
400 3 (1) 2(2) 2-12 2 (1) 2(2) 2-12 2 (1) 1(1) 2-12 1 2-12
500 4 (1) 1(3) 2-12
2 2-12 2(1) 2-12(1) 1-14
2(1) 1(1) 2-12
600 4(3) 2-12(1) 2
3(1) 1-1(2) 2-12
2(1) 2(1) 2-12
2(1) 2-12(1) 1-14
700 amp 800 5 (1) 1(4) 2-12
3(1) 2(2) 2-12
2 2-12 2(1) 2-12(1) 2
NOTES Hot water relief valves are Kunkle 537
Table A1-15 Hot Water Boiler Relief Valve Openings
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 2143
Model CBLE 125-800 HP Boilers
21
BOILER HP A B C D E F G X1 X2 X3
125 6 9 112 39-12 57-12 4 44-12 10 9-34 22-12
150 6 9 136 39-12 57-12 4 44-12 10 9-34 22-12
200 6 9 167 39-12 57-12 4 44-12 10 9-34 22-12
250 6 12 131 46 70 4 56 10 22 22-12
300 6 12 158 46 70 4 56 10 22 22-12
350 6 12 188 46 70 4 56 10 22 22-12
NOTE
All numbers in table are in inches
6-inch high mounting piers recommended for use beneath the boiler base frame The use of these piers provides increased inspection
accessibility to the piping beneath the boiler and added height for washing down the area beneath the boiler
Figure A1-7 Space Required to Open Rear Head on Model CB-LE Boilers Equipped with Davits
BOILER HPDIMENSIONS (INCHES)
A B C D E
CB-125 THRU CB-200 33 55 45 68 32
CB-250 THRU CB-350 42 69 58 86 43
CB-400 THRU CB-800 51 88 71 109 53
Figure A1-8 Model CB-LE Boiler Mounting Piers (60rdquo and 78rdquo)
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 2243
Model CBLE 125-800 HP Boilers
22
BOILER HP A B C D E F G
400 6 14 134 50 78 6-12 58-78
500 6 14 155 50 78 6-12 58-78
600 6 14 187 50 78 6-12 58-78
700-800 6 14 220 50 78 6-12 58-78
NOTE1 All numbers in table are in inches2 6-inch high mounting piers recommended for use beneath the boiler base frame The use of these piers provides in-
creased inspection accessibility to the piping beneath the boiler and added height for washing down the area beneaththe boiler
Figure A1-9 Model CB-LE Boiler Mounting Piers (96rdquo)
CBLE 250-350HP
CBLE 400-800HP
Motor HP Hole Number
75 1
15 1
25 2
40 3
Motor HP Hole Number
10 1
20 1
30 250 2
75 3
Figure A1-10 Front Davit Support
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Model CBLE 125-800 HP Boilers
23
BOILERHP
VIEW
ALL DIMENSIONS IN INCHES
A B C D E
125 All B 80-14 29-34 70-12 10 3
150 All B 80-14 29-34 83-12 10 3
200 All B 80-14 29-34 114-12 10 3
250Steam B 99 36 72 10 3
Hot Water B 99 36 81 10 3
300
Steam B 99 36 99 10 3
Hot Water B 99 36 108 10 3
350Steam B 99 36 129 10 3
Hot Water B 99 36 138 10 3
400Steam B 119 35-34 78 11 3
Hot Water B 119 35-34 78 11 3
500Steam B 119 35-34 99 11 3
Hot Water B 119 35-34 99 11 3
600Steam B 119 35-34 131 11 3
Hot Water B 119 35-34 131 11 3
700 amp 800Steam B 119 35-34 164 11 3
Hot Water B 119 35-34 164 11 3
NOTE A B and C dimensions may vary by 12 inch
Figure A1-11 Lifting Lug Location Model CB-LE Boilers
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Model CBLE 125-800 HP Boilers
24
PERFORMANCE DATA
The Low Emission Option provides NOx reduction at current published andpredicted fuel-to-steam efficiencies
Specifying BoilerEfficiency
Cleaver-Brooks offers an industry leading fuel-to-steam boiler efficiency guaranteefor Model CB-LE Firetube Boilers The guarantee is based on the fuel-to-steam
efficiencies shown in the efficiency tables and the following conditions Theefficiency percent number is only meaningful if the specific conditions of theefficiency calculations are clearly stated in the specification (see Cleaver-Brookspublication CB-7768 for a detailed description of efficiency calculations)
When specifying the efficiencies in the tables be sure to include the specificguarantee conditions to maximize the effectiveness of your efficiency specification Ifyou have any questions regarding the efficiency specifications please contact yourlocal Cleaver-Brooks authorized representative
EfficiencySpecification
The boiler manufacturer shall guarantee that at the time of startup the boiler willachieve fuel-to-steam efficiency (as shown in Table A1-16 and Table A1-17) at100 firing rate (add efficiency guarantees at 25 50 and 75 of rating if
required) If the boiler(s) fail to achieve the corresponding guaranteed efficiency aspublished the boiler manufacturer will rebate to the ultimate boiler owner tenthousand dollars ($10000) for every full efficiency point (10) that the actualefficiency is below the guaranteed level
The specified boiler efficiency is based on the following conditions
1 Fuel specification used to determine boiler efficiency
bull Natural Gas
Carbon (wt) = 6998Hydrogen (wt) = 2231Sulfur (wt) = 00
Heating value Btulb = 21830bull No 2 Oil
Carbon (wt) = 858Hydrogen (wt) = 127Sulfur (wt) = 02Heating value Btulb = 19420
No 6 Oil
Carbon (wt) = 866Hydrogen (wt) = 109Sulfur (wt) = 209Heating value Btulb = 18830
2 Efficiencies are based on ambient air temperature of 80 degF relative humidity of30 and 15 excess air in the exhaust flue gas
3 Efficiencies are based on manufacturerrsquos published radiation and convectionlosses (For Cleaver-Brooks radiation and convection losses see BoilerEfficiency Facts Guide publication number CB-7767)
4 Any efficiency verification testing will be based on the stack loss method
For efficiencies and stack temperatures at operating pressures not listed followthese procedures
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Model CBLE 125-800 HP Boilers
25
When the operating steam pressure is between 10 psig and 125 psig interpolatethe values from the efficiency tables
When the operating steam pressure is above 125 psig estimated efficiency can becalculated as follows
Example
Boiler 350 hpFuel natural gas
Operating steam pressure 200 psig
Find the fuel-to-steam efficiency at 100 firing rate From Table A1-16 for a 350hp boiler operating at 100 firing rate and an operating steam pressure of 125psig the efficiency is 825
Using Figure A1-12 note that the stack temperature increases 36 degF at the higheroperating pressure To estimate boiler efficiency use this rule of thumb For every40 degF increase in stack temperature efficiency decreases by 1 Since the stacktemperature rise is 36 degF the decrease in the boiler efficiency at 200 psig operatingpressure is calculated as follows 3640 =9 Therefore the boiler efficiency at200 psig operating pressure is 825 -9 = 816
Emissions The emission data included in this section consists of typical emission levels forModel CB boilers equipped with 60 30 25 and 20 ppm LE Options when firingnatural gas and No 2 oil
Notice
The data in Table A1-18 and Table A1-19 represent typical emission levels only
Guaranteed emission levels are available from your local Cleaver-Brooks authorized
representative
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Model CBLE 125-800 HP Boilers
26
BOILER
HP
OPERATING PRESSURE = 10 psig OPERATING PRESSURE = 125 psig
OF LOAD OF LOAD
25 50 75 100 25 50 75 100
125 833 836 834 832 804 809 810 810
150 844 846 845 843 815 820 820 821
200 850 853 851 849 822 827 827 827
250 850 847 840 833 820 820 816 813
300 853 853 846 839 826 827 822 819
350 853 857 852 845 826 832 828 825
400 845 847 846 844 818 822 824 822
500 855 857 855 852 828 832 833 831
600 857 860 858 856 829 835 836 835
700 857 862 860 857 830 836 836 836
800 858 861 859 856 831 836 837 835
Table A1-16 Predicted Fuel-to-Steam Efficiencies - Natural Gas
Figure A1-12 Predicted Stack Temperature Increase for Pressure Greater Than 125 psig
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Model CBLE 125-800 HP Boilers
27
Table A1-18 CB-LE Boilers - Natural Gas Emission Levels
POLLUTANT
ESTIMATED LEVEL
60 ppm 30 ppm 25 ppm 20 ppm 15 ppm 9 ppm
CO ppmA
lbMMBtu
50150B
004011
50150B
004011
50150B
004011
50150B
004011
50
004
50
004
NOx ppmA
lbMMBtu
60
007
30
0035
25
003
20
0024
15
0018
9
0011
SOx ppmA
lbMMBtu
1
0001
1
0001
1
0001
1
0001
1
0001
1
0001
HCVOC5 ppmA
lbMMBtu
10
0004
10
0004
10
0004
10
0004
10
0004
10
0004
PM ppmA
lbMMBtu
-
001
-
001
-
001
-
001
-
001
-
001
A ppm levels are given on a dry volume basis and corrected to 3 oxygen (15 excess air)
B CO emission for 60 30 25 amp 20 ppm system is 50 ppm (004 lbMMBtu) when boiler is operating above 50 of rated capacity
CO emission is 150 ppm (011 lbMMBtu) when boiler is operating below 50 of rated capacity
Table A1-17 Predicted Fuel-to-Steam Efficiencies - No 2 Oil
BOILER
HP
OPERATING PRESSURE = 10 psig OPERATING PRESSURE = 125 psig
OF LOAD OF LOAD
25 50 75 100 25 50 75 100
125 867 869 867 866 837 842 843 843
150 878 880 878 876 848 853 853 854
200 884 887 884 882 856 860 860 860
250 883 881 874 867 853 853 849 847
300 886 887 880 873 859 860 855 852
350 886 890 885 878 859 866 861 858
400 879 881 879 876 851 855 856 855
500 889 890 889 886 861 865 866 864
600 890 894 892 890 862 868 869 868
700 891 895 893 891 863 869 870 869
800 892 895 893 890 864 869 870 868
Table A1-19 CB-LE Boilers - No 2 Oil Emission Levels
POLLUTANTESTIMATED LEVEL
60 ppm LE Option 30 25 20 ppm LE Option 15 ppm 9 ppm
CO ppmA
lbMMBtu
50
0039
50
0039
50
0039
50
0039
NOx ppmA
lbMMBtu140
018690
012085
011370
0093
SOx ppmA
lbMMBtu
278
052
278
052
278
052
278
052
HCVOCs ppmA
lbMMBtu
4
0002
4
0002
4
0002
4
0002
PM ppmA
lbMMBtu
-
0025
-
0025
-
0025
-
0025
A ppm levels are given on a dry volume basis and corrected to 3 oxygen (15 excess air)
BASED ON THE FOLLOWING CONSTITUENT LEVELS
Fuel-bound Nitrogen content = 0015 by weight
Sulfur content = 05 by weight
Ash content = 001 by weight
09-09
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Model CBLE 125-800 HP Boilers
28
ENGINEERING DATA
Sound Level Table A1-20 gives a summary of predicted sound pressure levels for Model CBboilers with 30 ppm LE Options Contact your local Cleaver-Brooks authorizedrepresentative for sound levels or other LE Options
Units - The units for the sound level tables are dbA (decibels measured on the A-weighted scale) in reference to 00002 microbars (20 micro-Newtons per square
meter) Their reference are standardly used in specifying and reporting soundpressure levels on industrial equipment
Test Method - The sound pressure levels in the above tables were obtained fromtests in accordance with the ldquoABMA Test Code for the Measurement of Sound fromPackaged Boilersrdquo In accordance with this code the sound pressure levels reportedwere measured on the boiler centerline 4-12 feet vertically above the bottom of thebase rails and 3 feet horizontally in front of the end of the blower motor or frontsurface of the electrical cabinet
Sound Level Meter - The sound level meter used complies with ANSI S14 Type 1(Precision) The readings are taken with the meter set for slow response andcorrected for background levels
Sound Pressure - The large size boilers the need for auxiliary equipment and thenecessary interconnecting piping make it impractical (and sometimes impossible) toprovide a boiler testing environment which is suitable for taking the data needed todevelop Sound Pressure Power levels
Typical Values - Sound pressure levels (dbA) for the same boiler will vary betweenboiler rooms Sound levels will vary with motor type NOx levels and altitudes Inaddition variations will occur between different people using different sound meterson the same boiler And finally no two boilers can be expected to give precisely thesame sound levels For these reasons we can only predict but not guarantee soundlevels (dbA)
BOILER HP 125 150 200 250 300 350 400 500 600 700 800
HFO dbA 84 84 84 83 84 85 84 85 85 88 90
LFO dbA 82 82 83 81 82 83 82 83 83 84 89
HFG dbA 82 82 83 82 83 84 83 83 85 87 90
LFG dbA 81 81 82 81 82 83 81 81 82 84 88
NOTES1 Sound pressure levels measured on boilers operating in various locations and ex-
pressed in dbA are as shown2 Based on standard altitude fans and fan motors 60 Hz3 Contact your local Cleaver-Brooks authorized representative for sound levels of 60 25or 20 ppm LE Options
ABBREVIATIONS
HF = High Fire LF = Low Fire O = Oil G = Gas
Table A1-20 Model CBLE Predicted Sound Levels 30 ppm NOx Systemss
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Model CBLE 125-800 HP Boilers
29
Gas-Fired Burners Table A1-21 shows gas pressure with standard over- and undersized gas trains
Table A1-22 shows minimum required gas pressure altitude conversion
Figure A1-13 shows standard gas train sizes and locations for Model CB FiretubeBoilers
Figure A1-14 shows typical gas train piping layouts for multiple boiler applications
Figure A1-15 shows standard gas train components
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Model CBLE 125-800 HP Boilers
30
Table A1-21 Standard Undersize and Oversize Gas Trains
CBLE
BOILER HP GAS TRAINSIZE
UPSTREAMVALVE
DOWNSTREAMVALVE
EMISSIONS LEVEL 09 ppm 15 ppm 20 ppm 30 ppm 60 ppm UC
125 HP 15 in BB BB 33 - 49 psi 33 - 49 psi 08 - 50 psi 07 - 50 psi 07 - 50 psi 07 - 50 ps
125 HP 15 in PC PC 34 - 50 psi 34 - 50 psi 09 - 50 psi 08 - 50 psi 08 - 50 psi 08 - 50 ps
125 HP 20 in BB BB 31 - 33 psi 31 - 33 psi 06 - 08 psi 06 - 07 psi 05 - 07 psi 05 - 07 ps
125 HP 20 in PC PC 31 - 34 psi 31 - 34 psi 06 - 09 psi 06 - 08 psi 06 - 08 psi 05 - 08 ps
125 HP 25 in PC PC 30 - 31 psi 30 - 31 psi 04 - 06 psi 04 - 06 psi 04 - 05 psi 04 - 05 ps
125 HP 30 in PC PC 29 - 30 psi 29 - 30 psi 04 - 04 psi 04 - 04 psi 04 - 04 psi 03 - 04 ps
125 HP 40 in PC PC 29 - 29 psi 29 - 29 psi 04 - 04 psi 03 - 04 psi 03 - 04 psi 03 - 03 ps
150 HP 15 in BB BB 37 - 55 psi 39 - 58 psi 10 - 47 psi 09 - 50 psi 09 - 50 psi 09 - 50 ps
150 HP 15 in PC PC 38 - 57 psi 40 - 60 psi 11 - 42 psi 11 - 50 psi 10 - 50 psi 10 - 50 ps
150 HP 20 in BB BB 34 - 37 psi 36 - 39 psi 07 - 10 psi 06 - 09 psi 06 - 09 psi 06 - 09 ps
150 HP 20 in PC PC 34 - 38 psi 36 - 40 psi 07 - 11 psi 07 - 11 psi 07 - 10 psi 06 - 10 ps
150 HP 25 in PC PC 32 - 34 psi 34 - 36 psi 05 - 07 psi 04 - 06 psi 04 - 06 psi 04 - 06 ps
150 HP 30 in PC PC 32 - 32 psi 34 - 34 psi 04 - 05 psi 04 - 04 psi 04 - 04 psi 03 - 04 ps
150 HP 40 in PC PC 31 - 32 psi 33 - 34 psi 04 - 04 psi 03 - 04 psi 03 - 04 psi 03 - 03 ps
200 HP 15 in BB BB 46 - 69 psi 50 - 75 psi 16 - 50 psi 15 - 50 psi 15 - 50 ps
200 HP 15 in PC PC 48 - 72 psi 52 - 78 psi 18 - 50 psi 17 - 50 psi 17 - 50 ps
200 HP 20 in BB BB 41 - 46 psi 45 - 50 psi 10 - 16 psi 10 - 15 psi 10 - 15 ps
200 HP 20 in PC PC 41 - 48 psi 45 - 52 psi 11 - 18 psi 11 - 17 psi 10 - 17 ps
200 HP 25 in PC PC 38 - 41 psi 42 - 45 psi 07 - 10 psi 07 - 10 psi 06 - 10 ps
200 HP 30 in PC PC 36 - 38 psi 40 - 42 psi 06 - 07 psi 05 - 07 psi 05 - 06 ps
200 HP 40 in PC PC 36 - 36 psi 40 - 40 psi 05 - 06 psi 05 - 05 psi 04 - 05 ps
250 HP 15 in BB BB 41 - 62 psi 44 - 67 psi 24 - 50 psi 24 - 27 psi 24 - 26 psi 23 - 26 ps
250 HP 15 in PC PC 45 - 67 psi 48 - 72 psi 28 - 50 psi 27 - 28 psi 27 - 27 psi 27 - 27 ps
250 HP 20 in BB BB 33 - 38 psi 37 - 41 psi 16 - 24 psi 16 - 24 psi 16 - 24 psi 15 - 23 ps
250 HP 20 in PC PC 34 - 40 psi 37 - 43 psi 17 - 28 psi 17 - 27 psi 16 - 27 psi 16 - 27 ps
250 HP 25 in PC PC 29 - 33 psi 32 - 37 psi 11 - 16 psi 11 - 16 psi 11 - 16 psi 10 - 15 ps
250 HP 30 in PC PC 27 - 29 psi 31 - 32 psi 09 - 11 psi 09 - 11 psi 09 - 11 psi 09 - 10 ps
250 HP 40 in PC PC 26 - 27 psi 29 - 31 psi 08 - 09 psi 08 - 09 psi 08 - 09 psi 08 - 09 ps
300 HP 15 in - 20 in BB BB 55 - 83 psi 57 - 85 psi 30 - 50 psi 30 - 36 psi 30 - 35 psi 30 - 35 ps
300 HP 15 in - 20 in PC PC 58 - 87 psi 60 - 90 psi 33 - 50 psi 33 - 37 psi 33 - 36 psi 33 - 36 ps
300 HP 20 in BB BB 46 - 55 psi 47 - 57 psi 21 - 30 psi 21 - 30 psi 20 - 30 psi 20 - 30 ps
300 HP 20 in PC PC 47 - 58 psi 48 - 60 psi 22 - 33 psi 22 - 33 psi 21 - 33 psi 21 - 33 ps
300 HP 30 in PC PC 39 - 46 psi 40 - 47 psi 13 - 21 psi 13 - 21 psi 12 - 20 psi 12 - 20 ps
300 HP 40 in PC PC 37 - 39 psi 39 - 40 psi 11 - 13 psi 11 - 13 psi 10 - 12 psi 10 - 12 ps
350 HP 15 in - 20 in BB BB 64 - 90 psi 62 - 90 psi 42 - 50 psi 42 - 50 psi 41 - 50 psi 41 - 50 ps
350 HP 15 in - 20 in PC PC 68 - 90 psi 66 - 90 psi 46 - 50 psi 46 - 50 psi 45 - 50 psi 45 - 50 ps
350 HP 20 in BB BB 54 - 64 psi 53 - 62 psi 32 - 42 psi 32 - 42 psi 32 - 41 psi 31 - 41 ps
350 HP 20 in PC PC 56 - 68 psi 54 - 66 psi 34 - 46 psi 34 - 46 psi 33 - 45 psi 33 - 45 ps
350 HP 25 in PC PC 43 - 54 psi 42 - 53 psi 21 - 32 psi 21 - 32 psi 20 - 32 psi 20 - 31 ps
350 HP 30 in PC PC 40 - 43 psi 38 - 42 psi 17 - 21 psi 17 - 21 psi 17 - 20 psi 16 - 20 ps
350 HP 40 in PC PC 37 - 40 psi 36 - 38 psi 15 - 17 psi 15 - 17 psi 14 - 17 psi 14 - 16 ps
400 HP 15 in - 20 in BB BB 69 - 90 psi 69 - 90 psi 46 - 50 psi 46 - 50 psi 45 - 50 psi 45 - 50 ps
400 HP 15 in - 20 in PC PC 74 - 90 psi 75 - 90 psi 51 - 87 psi 51 - 77 psi 51 - 77 psi 51 - 77 ps
400 HP 20 in BB BB 55 - 69 psi 56 - 69 psi 32 - 46 psi 32 - 46 psi 32 - 45 psi 32 - 45 ps
400 HP 20 in PC PC 57 - 74 psi 58 - 75 psi 34 - 50 psi 34 - 50 psi 34 - 50 psi 34 - 50 ps
400 HP 25 in PC PC 41 - 55 psi 42 - 56 psi 18 - 32 psi 18 - 32 psi 18 - 32 psi 18 - 32 ps
400 HP 30 in PC PC 37 - 41 psi 38 - 42 psi 13 - 18 psi 13 - 18 psi 13 - 18 psi 13 - 18 ps
400 HP 40 in PC PC 34 - 37 psi 35 - 38 psi 11 - 13 psi 10 - 13 psi 10 - 13 psi 10 - 13 ps
500 HP 20 in - 25 in BB PC 58 - 76 psi 58 - 76 psi 46 - 50 psi 46 - 50 psi 45 - 50 psi 45 - 50 ps
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Model CBLE 125-800 HP Boilers
31
BB = Butter Ball PC = Plug Cock
NOTE In cases where the gas train increases in size after the regulating valve two diameters are listed The first number is the customer connection size
500 HP 20 in - 25 in PC PC 60 - 83 psi 60 - 83 psi 48 - 50 psi 47 - 50 psi 47 - 50 psi 47 - 50 psi
500 HP 25 in PC PC 39 - 58 psi 39 - 58 psi 27 - 46 psi 27 - 46 psi 27 - 45 psi 26 - 45 psi
500 HP 30 in PC PC 33 - 39 psi 33 - 39 psi 20 - 27 psi 20 - 27 psi 20 - 27 psi 20 - 26 psi
500 HP 40 in PC PC 28 - 33 psi 28 - 33 psi 16 - 20 psi 16 - 20 psi 15 - 20 psi 15 - 20 psi
600 HP 20 in - 25 in BB PC 80 - 90 psi 80 - 90 psi 65 - 90 psi 65 - 90 psi 64 - 89 psi 63 - 88 psi
600 HP 20 in - 25 in PC PC 82 - 90 psi 82 - 90 psi 67 - 100 psi 67 - 100 psi 66 - 99 psi 66 - 99 psi
600 HP 25 in PC PC 54 - 80 psi 54 - 80 psi 39 - 50 psi 38 - 50 psi 38 - 50 psi 37 - 50 psi
600 HP 25 in - 30 in PC PC 52 - 54 psi 52 - 54 psi 37 - 39 psi 36 - 38 psi 35 - 38 psi 35 - 37 psi
600 HP 30 in PC PC 43 - 52 psi 43 - 52 psi 28 - 37 psi 27 - 36 psi 27 - 35 psi 26 - 35 psi
600 HP 40 in PC PC 37 - 43 psi 37 - 43 psi 22 - 28 psi 21 - 27 psi 20 - 27 psi 20 - 26 psi
700 HP 20 in - 30 in BB PC 110 - 150 psi 107 - 150 psi 87 - 131 psi 86 - 130 psi 86 - 129 psi 86 - 128 psi
700 HP 20 in - 30 in PC PC 113 - 150 psi 110 - 150 psi 90 - 135 psi 89 - 134 psi 89 - 134 psi 89 - 133 psi
700 HP 25 in - 30 in PC PC 71 - 90 psi 68 - 90 psi 48 - 50 psi 47 - 50 psi 47 - 50 psi 46 - 50 psi
700 HP 30 in PC PC 60 - 71 psi 57 - 68 psi 36 - 48 psi 36 - 47 psi 35 - 47 psi 35 - 46 psi
700 HP 40 in PC PC 51 - 60 psi 48 - 57 psi 28 - 36 psi 27 - 36 psi 27 - 35 psi 26 - 35 psi
800 HP 20 in - 30 in BB PC 108 - 150 psi 107 - 150 psi 106 - 150 psi
800 HP 20 in - 30 in PC PC 112 - 150 psi 111 - 150 psi 110 - 150 psi800 HP 25 in - 30 in PC PC 61 - 90 psi 60 - 100 psi 59 - 100 psi
800 HP 30 in PC PC 48 - 61 psi 47 - 50 psi 46 - 50 psi
800 HP 40 in PC PC 35 - 48 psi 34 - 47 psi 34 - 46 psi
Standard Gas Train size is highlighted
Table A1-21 Standard Undersize and Oversize Gas Trains (Continued)
CBLE
BOILER HP GAS TRAINSIZE
UPSTREAMVALVE
DOWNSTREAMVALVE
EMISSIONS LEVEL 09 ppm 15 ppm 20 ppm 30 ppm 60 ppm UC
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Model CBLE 125-800 HP Boilers
32
ALTITUDE(FT)
CORRECTIONFACTOR
ALTITUDE(FT)
CORRECTIONFACTOR
1000 104 6000 1252000 107 7000 130
3000 111 8000 135
4000 116 9000 140
5000 121 - -
To obtain minimum required gas pressure at altitudesabove 700 feet multiply the pressure by the listed factorsInches WC x 0577 = ozsq-inOzsq-in x 1732 = Inches WCInches WC x 00361= psigOzsq-in x 00625 = psigPsig x 2771 = Inches WCPsig x 160 = Ozsq-in
Table A1-22 Minimum Required Regulated Gas Pressure
Altitude Conversion
BOILERHP
TYPE OF GAS AND HEAT CONTENT
NATURAL GAS1000 (Btucu-ft)
PROPANE GAS2550 (Btucu-ft)
125 5103 2000
150 6124 2402
200 8165 3202
250 10206 4002
300 12247 4802
350 14280 5600
400 16329 6404
500 20415 8006
600 24494 9605
700 28576 11206
800 32659 12807
Table A1-23 Maximum Gas Consumption (CFH)
for Natural Gas and Propane Vapor
BOILER
HP
MODEL CB
CONNECTION SIZE
(IN NPT)
LOCATIONDIMENSION
ldquoArdquo (IN)
125-200 1-12 52
250-350 2 56
400 2 58
500 2-12 60
600 2-12 - 3 71
700-800 3 65
Figure A1-13 Standard Gas Train Connection Size and Location
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Model CBLE 125-800 HP Boilers
33
Oil-Fired Burners Fuel oil consumption information is shown on the boiler rating sheets in theDimensions and Rating Section
Figure A1-16 shows the oil connection sizes and locations for Model CB Boilersfiring No 2 oil
Figure A1-17 through Figure A1-18 show typical oil systems and layouts
Figure A1-19 and Figure A1-20 show the detail of an oil transfer tank (day tank)typically utilized to provide a storage reservoir between the oil system supply pumpand the boiler oil pump
General BoilerInformation
Table A1-24 shows blowdown tank sizing information
Table A1-25 provides heating surface information
Table A1-26 provides steam volume and disengaging area information
Table A1-27 provides recommended steam nozzle sizes
Table A1-28 provides recommended non-return valve sizes
Boiler RoomInformation
Figure A1-21 shows typical boiler room length requirements
Figure A1-22 shows typical boiler room width requirements
Figure A1-23 shows typical breeching arrangements
Stack SupportCapabilities
All standard Cleaver-Brooks Firetube Boilers with an LE option can support up to2000 lbs without additional support
LE Boilers 250 hp through 800 hp can be reinforced to support 3000 lbs
StackBreechingSize Criteria
The design of the stack and breeching must provide the required draft at each boilerflue gas outlet Proper draft is critical to burner performance
Although constant pressure at the flue gas outlet of the Model CB-LE is not requiredit is necessary to size the stackbreeching to limit flue gas pressure variation Theallowable pressure range is ndash025 WC to +025 WC
For additional information please review Section I4 General Engineering Data(Stacks) and Section F Stacks Stack and breeching sizes should always be providedby a reputable stack supplier who will design the stack and breeching system basedon the above criteria Your local Cleaver-Brooks authorized representative is capableof assisting in your evaluation of the stackbreeching design
Boiler RoomCombustion Air
When determining boiler room air requirements the size of the room air flow andvelocity of air must be reviewed as follows
1 Size (area) and location of air supply openings in boiler room
A Two (2) permanent air supply openings in the outer walls of the boiler room
are recommended Locate (1) at each end of the boiler room preferablybelow a height of 7 feet This allows air to sweep the length of the boiler
B Air supply openings can be louvered for weather protection but they shouldnot be covered with fine mesh wire as this type of covering has poor air flowqualities and is subject to clogging by dust or dirt
C A vent fan in the boiler room is not recommended as it could create a slightvacuum under certain conditions and cause variations in the quantity ofcombustion air This can result in unsatisfactory burner performance
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Model CBLE 125-800 HP Boilers
34
D Under no condition should the total area of the air supply openings be lessthan (1) square foot
E Size the openings by using the formulaArea (sq-ft) = CFMFPM
2 Amount of air required (cfm)
A Combustion Air = Rated bhp x 8 cfmbhp
B Ventilation Air = Maximum bhp x 2 cfmbhp
C Total recommended air = 10 cfmbhp - up to 1000 feet elevation Add 3percent more per 1000 feet of added elevation
3 Acceptable air velocity in Boiler Room (fpm)
A From floor to (7) foot height - 250 fpm
B Above (7) foot height - 500 fpm
Example Determine the area of the boiler room air supply openings for (1) 300 hpboiler at 800 feet altitude The air openings are to be 5 feet above floor level
bull Air required 300 x 10 = 3000 cfm (from 2B above)
bull Air velocity Up to 7 feet = 250 fpm (from 3 above)
bull Area Required Area = cfm = 3000250 = 12 sq-ft total
bull AreaOpening 122 = 6 sq-ftopening (2 required)
Notice
Consult local codes which may supersede these requirements
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Model CBLE 125-800 HP Boilers
35
This figure illustrates the basic gas valve arrangement on Cleaver-BrooksModel CB boiler and shows the contractors connection point The valves andcontrols between the contractor connection point and the gas main in thestreet are representative of a typical installation Actual requirements mayvary depending on local codes or local gas company requirements which
should be investigated prior to preparation of specifications and prior to con-struction
A Utilities service valveB Utilities service regulatorC Gas meterD Piping from meter to boiler
The size of the gas line from the meter to the gas pressure regulator at theboiler can be very important if gas pressures are marginal The gas line sizingis dependent on
1 Gas pressure at outlet of gas meter (C)2 Rate of gas flow required CFH3 Length of pipe run (D)4 Pressure required at contractor connection point
The local gas utility will advise the pressure that is available at the outlet oftheir meter
Figure A1-14 Typical Gas Piping Layout
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Model CBLE 125-800 HP Boilers
36
5
6
S
1
3
42
PILOT GAS LINE
S
S
MAIN GAS LINE
M M
ToBurner
GasSupply
11
10
97
12138
14 15
FLOW
FLOW
Figure A1-15 Model CB-LE Gas Train Components
BOILER
HP
MODEL CB
SUPPLYANDRE-
TURNCONN SIZES
(IN)(NPT)
A(IN)
RECOMMENDED OIL LINEA
SIZES(STANDARD PIPE)
(IN - IPS)
STOR-AGE
TANK TOBOILER
OR PUMPCONNECT
PUMPTO
BOILER
RE-TURN
LINE TOTANK
125150 200
34 12-12 1 1 1
250300350
34 34 1 1 1
400500600
34 11-34 1 1 1
700800
1 11-34 1 1 1
NOTE See No 2 Oil Line Sizing Instruction for systems with other conditions A For suction line condition with a maximum of 10 Feet of lift and a
total of 100 feet of suction line
Figure A1-16 No2 Oil Connection Size Location and Recommended Line Sizes
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 3743
Model CBLE 125-800 HP Boilers
37
Figure A1-17 No 2 Oil Piping Single Boiler
Installation Remote Oil Pump
Figure A1-18 No 2 Oil Piping Multiple Boiler
Installation Remote Oil Pumps
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 3843
Model CBLE 125-800 HP Boilers
38
Figure A1-19 No 2 Oil Piping Multiple Boiler
Installation
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 3943
Model CBLE 125-800 HP Boilers
39
Figure A1-20 No 2 Oil Piping Typical Arrangement
Table A1-24 Model CB-LE Blowdown
Tank Sizing
BOILER HP WATER (GAL)
125 97
150 118
200 145
250 146
300 176
350 210
400 177
500 209
600 250
700 800 296
NOTE Quantity of water removed from boiler by lowering normal water line 4
BOILER
HP
HEATING SURFACE (SQ-FT)
FIRESIDE WATERSIDE
125 625 679
150 750 820
200 1000 1092
250 1250 1346
300 1500 1623
350 1750 1932
400 2000 2151
500 2500 2691
600 3000 3262
700 800 3500 3810
Table A1-25 Heating Surface Model CB-LE
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 4043
Model CBLE 125-800 HP Boilers
40
BOILER HPSTEAM VOLUME CU-FT
STEAM DISENGAGING AREASQ-IN
HIGH PRESSUREA LOW PRESSUREB HIGH PRESSUREA LOW PRESSUREB
125 254 366 5371 5887
150 307 443 6511 7138
200 377 544 7985 8752
250 492 706 7980 8695
300 595 853 9651 10516
350 709 1017 11507 12538
400 721 979 9793 10593
500 837 1137 11376 12303
600 1015 1378 13787 14911
700-800 1198 1627 16273 17600
NOTE Based on normal water levelA Based on 150 psig design pressureB Based on 15 psig design pressure
Table A1-26 Steam Volume and Disengaging Area
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 4143
Model CBLE 125-800 HP Boilers
41
BOILERHP
BOILERCAPACITY(LBSHR)
OPERATING PRESSURES (PSIG)
50 75 100 125 150 175 200 250
100 3450
2-12 2-12 NA NA NA NA NA NA
125 4313 3 2-12 2-12 2-12 NA NA NA NA
150 5175 3 3 2-12 2-12 2-12 2-12 NA NA
200 6900 3 3 3 3 3 2-12 2-12 2-12
250 8625 4 3 3 3 3 3 3 3
300 10350 4 4 4 3 3 3 3 3
350 12025 4 4 4 4 4 3 3 3
400 13800 5 4 4 4 4 4 4 3
500 17210 6 5 5 4 4 4 4 4
600 20700 6 6 5 5 5 4 4 4
700 24150 6 6 6 5 5 5 5 4
800 27600 6 6 6 6 6 5 5 5
NOTE Valve sizes (300 Flanges) given in inchesStandard Non-Return valve selections limited to a maximum 2 to 1 turndown(50 of full load) selections based on typical non-return valve sizing recommen-dations For final valve selection contact your C-B authorized representative Forhigh turndown applications see Boiler Book Section I3 Table I3-3 Indicates pressure drop of less than 75 psig All other selections are less than6 psig pressure drop
Boiler HP
OPERATINGPRESSURE
PSIG125 150 200 250 300 350 400 500 600 700 800
15 8 8 10 10 12 12 12 12 12 12 12
30 6 6 8 8 8 10 10 10 12 12 12
40 6 6 6 8 8 8 10 10 10 12 12
50 6 6 6 6 8 8 8 10 10 10 12
75 4 4 6 6 6 8 8 8 8 10 10
100 4 4 6 6 6 6 6 8 8 8 10
125 4 4 4 6 6 6 6 8 8 8 8
150 3 3 4 4 6 6 6 6 6 8 8
200 25 3 4 4 4 4 6 6 6 6 6
250 25 3 3 4 4 4 4 6 6 6 6
NOTES1 Steam nozzle sizes given in inches2 Recommended steam nozzle sizes based on 4000 to 5000 fpm steam velocity3 All standard steam nozzle sizes for 150 psig design pressure or greater are the sameas 125 psig operating pressure on the above table To increase or decrease the standardsize request the change with your local Cleaver-Brooks authorized representative4 Shaded area denotes special surge load baffles must be installed to avoid possible wa-ter carry-over5 For incremental operating pressures see Table I3-1 Steam Systems Fundamentals
Table A1-28 Recommended Steam Nozzle Size (for
4000 to 5000 fpm nozzle velocity)
Table A1-29 Recommended Non-Return Valve Size
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 4243
Model CBLE 125-800 HP Boilers
42
1 Shortest boiler room length (Dwg A) is obtained by allowing for possible future tube replacement (from front or rearof boiler) through a window or doorway Allowance is only made for minimum door swing at each end of the boilerThis arrangement provides sufficient aisle space at the front of the boiler but a ldquotightrdquo space condition at the rear
If space permits approximately 15 additional feet should be allowed at the rear for additional aisle and workingspace
2 Next shortest boiler room length (Dwg B) is obtained by allowing for possible future tube replacement from thefront of the boiler Allowance is only made for minimum door swing at the rear
If space permits approximately 15 additional feet should be allowed at the rear for additional aisle and workingspace
3 A slightly longer boiler room (Dwg C) is obtained by allowing for possible future tube replacement from the rear ofthe boiler Allowance for door swing at the front provides sufficient aisle and working space at the front
Figure A1-21 Boiler Room Length (Typical Layouts)
BOILER HP 125-200 250-350 400-800
Dimension A 82 93 102
Dimension B 115 141 171
NOTES1 Recommended Minimum Distance Between Boiler and Wall Dimen-
sion ldquoArdquo allows for a ldquoclearrdquo 42 aisle between the water col-umn on the boiler and the wall If space permits this aisle
should be widened 2 Recommended Minimum Distance Between BoilersDimension ldquoBrdquo between boilers allows for a ldquoclearrdquo aisle of42 - 125 -200 hp48 - 250-350 hp60 - 400-800 hpIf space permits this aisle should be widened
Figure A1-22 Boiler Room Width (Typical Layout)
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 4343
Model CBLE 125-800 HP Boilers
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 343
Model CBLE 125-800 HP Boilers
3
Table A1-15 Hot Water Boiler Relief Valve Openings 20
Table A1-16 Predicted Fuel-to-Steam Efficiencies - Natural Gas 26
Table A1-17 Predicted Fuel-to-Steam Efficiencies - No 2 Oil 27
Table A1-18 CB-LE Boilers - Natural Gas Emission Levels 27
Table A1-19 CB-LE Boilers - No 2 Oil Emission Levels 27
Table A1-20 Model CB-LE Predicted Sound Levels 30 ppm NOx Systems 28Table A1-21 Standard Undersize and Oversize Gas Trains Model CB-LE Boilers 30
Table A1-22 Recommended NTI Gas Train Sizes amp Pressure Ranges 31
Table A1-23 Minimum Required Regulated Gas Pressure Altitude Conversion 32
Table A1-24 Maximum Gas Consumption (CFH) for Natural Gas and Propane Vapor 32
Table A1-25 Model CB-LE Blowdown Tank Sizing 39
Table A1-26 Heating Surface Model CB-LE Boilers 39
Table A1-27 Steam Volume amp Disengaging Area 40
Table A1-28 Recommended Steam Nozzle Size 40
Table A1-29 Recommended Non-Return Valve Size 40
The Low Emission feature combines the packaging of induced flue gas recirculation with the Cleaver-Brooks integralfront head The front head routes the flue gases from the fourth pass to the fan and burner assembly for reliable low
NOx performance The enhanced burner design assures maximum NOx reduction at all firing rates while maintaining
top of the line boiler performance
Standard Low Emission Options include 60 30 25 or 20 ppm packages (all NOx emission levels are given on a dry
volume basis and corrected to 3 O2)
bull NOx performance for 60 ppm (natural gas corrected to 3 O2) uses a standard size combustion air fan for
induced flue gas recirculation
bull NOx performance for 30 25 or 20 ppm (natural gas corrected to 3 O2) includes a larger combustion air fan
motor assembly and a larger internal NOx reduction system
Cleaver-Brooks commitment to lowering emissions is based on more than 400 low NOx installations - all passing guar-
anteed emission performance levels
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 443
Model CBLE 125-800 HP Boilers
4
FEATURES AND BENEFITS
The Cleaver-Brooks Model CB Boiler - the premium firetube on the market today -includes the four-pass dryback design five square feet of heating surface per boilerhorsepower and maximum boiler efficiency In addition to the features of the ModelCB Boiler the Low Emission Option provides the following
Integral Front Head Designbull Single-piece front door
bull Fan cassette assembly for easy access to fan and motor
bull Guaranteed low nitrogen oxide (NOx) performance
bull Enhanced burner performance
bull Improved flame stability and combustion control
bull Intimate mixing of air and fuel assures minimum CO levels at low NOx levels
True BoilerBurnerLow NOx Package
bull ULULC approved package
bull Assures highest fuel-to-steam efficiencybull Eliminates the need for field installation of burner controls or NOx equipment
bull Single point positioning of fuel and air ensures ease of startup and providesreliable operation
PRODUCT OFFERING
The Low Emission Option currently is available on
bull 125 - 800 hp Model CB Firetube Dryback Boilers
bull High-pressure and low-pressure steam and hot water designs
bull Natural Gas No 2 oil or combination fired
bull Retrofit capability
Standard Equipment bull Model CB Firetube Boiler
bull New integral front head with internal low NOx system
bull Enhanced burner design
Available Options For option details contact your local Cleaver-Brooks authorized representative
bull Full line of Model CB Firetube options
bull Additional NOx reduction packages
DIMENSIONS AND RATINGS
The Model CB-LE dimensions and ratings are provided inTable A1-1 through TableA1-8 and in Figure A1-1 through Figure A1-6
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 543
Model CBLE 125-800 HP Boilers
5
BOILER HP 125 150 200 250 300 350 400 500 600 700 800
POWER REQUIREMENTS - SEA LEVEL TO 700 FT 60 HZ
Rated Cap Btu Output (1000 Btuhr) 4184 5021 6695 8369 10043 11716 13390 16738 20085 23433 26780
APPROXIMATE FUEL CONSUMPTON AT RATED CAPACITY
Light Oil (gph)A 364 437 583 729 875 1021 1166 1458 1750 2041 2333
Natural Gas (cfh) MBtu 5103 6123 8165 10206 12247 14288 16329 20412 24494 28576 32659
Gas (Thermhr) 510 612 816 1021 1225 1429 1633 2041 2449 2858 3266
POWER REQUIREMENTS - SEA LEVEL TO 700 FT 60 HZ
Blower Motor hp Refer to Tables A1-9 and A1-10
Oil Pump Motor hp No 2 Oil 12 12 12 12 34 34 34 34 34 1 1
Air Compressor Motor hp (Oil firing Only) 3 3 3 5 5 5 7-12 7-12 7-12 7-12 7-12
NOTES
A Based on 140000 Btugal
Table A1-2 Model CB-LE Hot Water Boiler Ratings
BOILER HP 125 150 200 250 300 350 400 500 600 700 800
RATINGS SEA LEVEL TO 700 FT
Rated Steam Cap (lbshr from and 212
degF)
4313 5175 6900 8625 10350 12075 13800 17250 20700 24150 27600
Btu Output (1000 Btuhr) 4184 5021 6695 8369 10043 11716 13390 16738 20085 23433 26780
APPROXIMATE FUEL CONSUMPTION AT RATED CAPACITY
Light Oil (gph)A 364 437 583 729 875 1021 1166 1458 1750 2041 2333
Natural Gas (cfh) MBtu 5103 6123 8165 10206 12247 14288 16329 20412 24494 28576 32659
Gas (Thermhr) 510 612 816 1021 1225 1429 1633 2041 2449 2858 3266
POWER REQUIREMENTS - SEA LEVEL TO 700 FT 60 HZ
Blower Motor hp Refer to Tables A1-9 and A1-10
Oil Pump Motor hp No 2 Oil 12 12 12 12 34 34 34 34 34 1 1
Air Compressor Motor hp (Oil firing Only) 3 3 3 5 5 5 7-12 7-12 7-12 7-12 7-12
NOTES
A Based on 140000 Btugal
Table A1-1 Model CB-LE Steam Boiler Ratings
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 643
Model CBLE 125-800 HP Boilers
6
A
B
C D
E
F
G
H I J
KL
M Y
N
O
P Q
R S
T
UV
W
X
Y AA
BB CC DD EE
GG
HH
HH
JJ
GG
GG
JJ
KK
FF FARSIDE
Table A1-3 Model CB-LE Steam Boiler Dimensions
60rdquo (15 - 150 psig Design Pressure) - Sheet 1 of 2
(measurements shown in inches)
Description DIMBoiler HP
125 150 200
LENGTHS
Length Overall A 173 1965 2285
Shell B 125 149 180
Front Head Extension C 28 28 29
Front Ring Flange to Nozzle - 15 D 88 90 96
Front Ring Flange to Nozzle - 150 D 84 84 96
Rear Head Extension E 195 195 195
Front Ring Flange to Panel G 17 17 17Ring Flange to Base H 05 05 05
Base Frame I 112 136 167
Rear Flange Ring to Base J 125 125 125
HEIGHTS
Ht Overall K 87 87 87
Base to Vent Outlet L 87 87 87
Base to Boiler Centerline M 46 46 46
Base to Gas Train N 6 85 85
Figure A1-1 CB-LE Steam - 125-200 HP
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 743
Model CBLE 125-800 HP Boilers
7
Description DIM Boiler HP
125 150 200
HEIGHTS (continued)
Base to Panel Top T 75 75 77Base to Panel Bottom U 15 15 17
Height of Base V 12 12 12
Base to Steam Nozzle Y 8238 8238 8238
WIDTHS
Width Overall O 8988 89875 905
Center to ALWCO P 3875 3875 3875
Center to Outside Control Panel Q 485 485 485
Center to Lagging R 33 33 33
Center to WC S 445 45 45
Base Inside W 445 445 445
Base Outside X 525 525 525
Boiler ID F 60 60 60
CONNECTIONSElectric - Main Power Supply AA 460 3 60 460 3 60 460 3 60
Surface Blowoff (with collector pipe) BB 1 1 1
Steam Outlet 15 (150 Flange) CC 8 8 10
Steam Outlet 150 (300 Flange) CC 4 4 4
Chemical Feed FF 1 1 1
Feed Water (2) GG 15 15 2
Blowdown (2) 150 HH 15 15 15
Drain (2) 15 HH 15 15 2
Water Column Blowdown JJ 075 075 075
Gauge Glass Blowdown KK 025 025 025
VENT STACK
Diameter (OD) (flgd connection) 16 16 16
CLEARANCES
Rear Door Swing (Davited) 32 32 32
Front Door Swing 67 67 67
Tube Removal Rear 115 139 170
Tube Removal Front 103 127 158
MINIMUM BOILER ROOM LENGTH ALLOWING FOR DOOR SWING AND TUBE REMOVAL
From Rear of Boiler 307 355 417
From Front of Boiler 260 308 370
Through Window or Doorway 224 248 279
WEIGHT IN LBS
Normal Water Capacity 5750 7250 8625
Approx Ship Wt 15 psig 11300 12600 14600
Approx Ship Wt 150 psig 12400 13500 15600
Approx Ship Wt 200 psig 13000 14200 16400
Table A1-3 Model CB-LE Steam Boiler Dimensions 60rdquo (15 - 150 psig Design Pressure) - Sheet 2 of 2
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 843
Model CBLE 125-800 HP Boilers
8
A
BC
D
E
F
G
H I J
K
L
M
N
O
P QR S
T
UV
W
X
Y
AA
BBCC
DD
EE
FF
GG
HH
HH
JJ
JJ
KK
GG
GG
Y
FARSIDE
(measurements shown in inches)
Description DIM
Boiler HP
250 300 350
LENGTHS
Length Overall A 1915 220 250
Shell B 144 171 201
Front Head Extension C 235 25 25
Front Ring Flange to Nozzle - 15 D 90 98 112
Front Ring Flange to Nozzle - 150 D 88 98 112
Rear Head Extension E 24 24 24
Front Ring Flange to Panel G 17 23 23
Ring Flange to Base H 05 05 05
Base Frame I 131 158 188
Rear Flange Ring to Base J 125 125 125
HEIGHTS
Ht Overall K 115 115 115
Base to Vent Outlet L 106 106 106Base to Boiler Centerline M 56 56 56
Base to Gas Train N 10 10 10
Base to Panel Top T 77 77 77
Base to Panel Bottom U 17 17 17
Height of Base V 12 12 12
Base to Steam Nozzle Y 10150 10150 10150
Table A1-4 Model CB-LE Steam Boiler Dimensions
78rdquo (15 - 150 psig Design Pressure) - Sheet 1 of 2
Figure A1-2 CB-LE Steam - 250-350 HP
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 943
Model CBLE 125-800 HP Boilers
9
Description DIM Boiler HP
250 300 350
WIDTHS
Width Overall O 1065 1065 10875Center to ALWCO P 485 485 485
Center to Outside Control Panel Q 58 58 58
Center to Lagging R 42 42 42
Center to WC S 5375 5375 5375
Base Inside W 56 56 56
Base Outside X 64 64 64
Boiler ID F 78 78 78
CONNECTIONS
Electric - Main Power Supply AA 460 3 60 460 3 60 460 3 60
Surface Blowoff (with collector pipe) BB 1 1 1
Steam Outlet 15 (150 Flange) CC 12 12 12
Steam Outlet 150 (300 Flange) CC 6 6 6
Chemical Feed FF 1 1 1
Feed Water (2) GG 2 2 25Blowdown (2) 150 HH 15 15 15
Drain (2) 15 HH 2 2 2
Water Column Blowdown JJ 075 075 075
Gauge Glass Blowdown KK 025 025 025
VENT STACK
Diameter (OD) (flgd connection) 20 20 20
CLEARANCES
Rear Door Swing 43 43 43
Front Door Swing 89 89 89
Tube Removal Rear 131 157 187
Tube Removal Front 116 142 172
MINIMUM BOILER ROOM LENGTH ALLOWING FOR DOOR SWING AND TUBE REMOVAL
From Rear of Boiler 364 417 477
From Front of Boiler 303 356 416
Through Window or Doorway 275 302 332
WEIGHT IN LBS
Normal Water Capacity 10670 13000 15465
Approx Ship Wt 15 psig 21500 23600 26800
Approx Ship Wt 150 psig 22800 25200 27800
Approx Ship Wt 200 psig 24600 27200 29300
Table A1-4 Model CB-LE Steam Boiler Dimensions 78rdquo (15 - 150 psig Design Pressure) - Sheet 2 of 2
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 1043
Model CBLE 125-800 HP Boilers
10
A
BC
D
E
F
G
HI J
K
AA
BB CC
DD
EE
FF
JJ
GG
HH HH
L
M
N
O
P Q
R S
T
UV
W
X
Y
JJ
JJ
KK
GGGG
Y
FARSIDE
Table A1-5 Model CB-LE Steam Boiler Dimensions
96rdquo (15 - 150 psig Design Pressure) - Sheet 1 of 2
(measurements shown in inches)
Description DIMBoiler HP
400 500 600 700 800
LENGTHS
Length Overall A 20575 22775 25975 29875 29875
Shell B 14675 1675 19975 23275 23275
Front Head Extension C 27 28 28 34 34
Front Ring Flange to Nozzle - 15 D 98 101 96 112 112
Front Ring Flange to Nozzle - 150 D 96 100 96 112 112
Rear Head Extension E 32 32 32 32 32
Front Ring Flange to Panel G 26 26 26 26 26
Ring Flange to Base H 05 05 05 05 05
Base Frame I 13375 15475 18675 21975 21975
Rear Flange Ring to Base J 125 125 125 125 125
Figure A1-3 CB-LE Steam - 400-800 HP
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 1143
Model CBLE 125-800 HP Boilers
11
Description DIM Boiler HP
400 500 600 700 800
HEIGHTS
Ht Overall K 134 134 134 134 134Base to Vent Outlet L 126 126 126 126 126
Base to Boiler Centerline M 67 67 67 67 67
Base to Gas Train N 12 12 12 12 12
Base to Panel Top T 75 75 75 75 75
Base to Panel Bottom U 15 15 15 15 15
Height of Base V 12 12 12 12 12
Base to Steam Nozzle Y 1215 1235 1215 121 121
WIDTHS
Width Overall O 124 12425 124 124 124
Center to ALWCO P 575 575 575 575 575
Center to Outside Control Panel Q 665 665 665 665 665
Center to Lagging R 51 51 51 51 51
Center to WC S 63 63 63 63 63
Base Inside W 5888 5888 5888 5888 5888
Base Outside X 7188 7188 7188 7188 7188
Boiler ID F 96 96 96 96 96
CONNECTIONS
Electric - Main Power Supply AA 460 3 60 460 3 60 460 3 60 460 3 60 460 3 60
Surface Blowoff (with collector pipe) BB 1 1 1 1 1
Steam Outlet 15 (150 Flange) CC 12 12 12 12 12
Steam Outlet 150 (300 Flange) CC 6 8 8 8 8
Chemical Feed FF 1 1 1 1 1
Feed Water (2) GG 25 25 25 25 25
BlowdownDrain (2) HH 2 2 2 2 2
Water Column Blowdown JJ 075 075 075 075 075
Gauge Glass Blowdown KK 025 025 025 025 025
VENT STACK
Diameter (OD) (flgd connection) 24 24 24 24 24
CLEARANCES
Rear Door Swing 53 53 53 53 53Front Door Swing 108 108 108 108 108Tube Removal Rear 131 152 184 217 217
Tube Removal Front 114 135 167 200 200
MINIMUM BOILER ROOM LENGTH ALLOWING FOR DOOR SWING AND TUBE REMOVAL
From Rear of Boiler 386 428 492 558 558
From Front of Boiler 314 356 420 486 486
Through Window or Doorway 308 329 361 394 394
WEIGHT IN LBS
Normal Water Capacity 14810 15950 19270 23000 23000
Approx Ship Wt 15 psig 33500 37110 42300 49500 49600 Approx Ship Wt 150 psig 36570 39970 45025 52050 52150
Approx Ship Wt 200 psig 39680 43580 49400 57315 57415
Table A1-5 Model CB-LE Steam Boiler Dimensions
96rdquo (15 - 150 psig Design Pressure) - Sheet 2 of 2
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 1243
Model CBLE 125-800 HP Boilers
12
BOILER HP DIM 125 150 200
LENGTHS
Overall (60 ppm System) A 171-12 196-12 228-12
Shell B 125 149 180
Base Frame C 112 136 167
Front Head Extension (60 ppm System) D 27 28 29
Rear Head Extension E 19-12 19-12 19-12
Front Ring Flange to Outlet HH 114 136 167
Front Ring Flange to Return H 89 102 131
Ring Flange to Base F 12 12 12
Over Tubesheets V 113 137 168
Shell Extension P 12 12 12
Rear Flange Ring to Base G 12-12 12-12 12-12
Table A1-6 Model CB-LE Hot Water Boiler Dimensions
60rdquo (30 and 125 psig Design Pressure) - Sheet 1 of 2
Figure A1-4 CB-LE Hot Water - 125-200 HP
R
F G
WW
P
BB
D E
GG
Q
Z
Y T U
RR - RF - RD
X
HH
A
B
HI
L K
OO O
KK
M
N
EE
FF
DD
V
J
C
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 1343
Model CBLE 125-800 HP Boilers
13
BOILER HP DIM 125 150 200
WIDTHS
Overall I 75-12 75-12 75-12
ID Boiler J 60 60 60
Center to Entrance Box K 42-12 42-12 42-12
Center to Outside Hinge KK 35 35 35
Center to Lagging L 33 33 33
Base Outside M 52-12 52-12 52-12
Base Inside N 44-12 44-12 44-12
HEIGHTS
Overall OO 87 87 87
Base to Vent Outlet O 87 87 87
Base to Return and Outlet X 82-38 82-38 82-38
Height of Base Q 12 12 12
Base to Bottom of Boiler R 16 16 16
BOILER CONNECTION
Auxiliary Connection Z 1 1 1
Water Return Flange T 6A 6A 6A
Water Outlet Flange (2 Dip Tube Included) U 6A 6A 6A
Drain Front and Rear W 1-12 1-12 2
Air Vent Y 1-12 1-12 1-12
VENT STACK
Diameter (flgd connection) BB 16 16 16
MINIMUM CLEARANCES
Rear Door Swing DD 32 32 32
Front Door Swing EE 67 67 67
Tube Removal Rear FF 115 139 170Tube Removal Front GG 103 127 158
MINIMUM BOILER ROOM LENGTH ALLOWING FOR DOOR SWING AND TUBE REMOVAL FROM
Rear of Boiler RR 307 355 417
Front of Boiler RF 260 308 370
Thru Window or Doorway RD 224 248 279
WEIGHT IN LBS
Water Capacity Flooded 7670 9295 11130
Approx Ship Wgt ndash 30 psigApprox Ship Wgt ndash 125 psig
1140011800
1250012900
1450014900
NOTES All connections are threaded unless indicatedA ANSI 150 psig flange
Table A1-6 Model CB-LE Hot Water Boiler Dimensions
60rdquo (30 and 125 psig Design Pressure) - Sheet 2 of 2
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 1443
Model CBLE 125-800 HP Boilers
14
BOILER HP DIM 250 300 350
LENGTHS
Overall (60 ppm System) A 191-12 220 252
Shell B 144 171 201
Base Frame C 131 158 188
Front Head Extension (60 ppm System) D 23-12 25 27
Rear Head Extension E 24 24 24
Front Ring Flange to Return H 103-12 130 160
Front Ring Flange to Outlet HH 131 158 188
Ring Flange to Base F 12 12 12
Over Tubesheets V 129 156 186
Shell Extension P 15 15 15
Rear Flange Ring to Base G 12-12 12-12 12-12
Table A1-7 Model CB-LE Hot Water Boiler Dimensions78rdquo (30 and 125 psig Design Pressure) - Sheet 1 of 2
Figure A1-5 CB-LE Hot Water 250-350 HP
s k o o r B r e v a
e l C
R
F G
WW
P
BB
D E
GG
Q
Z
Y T U
RR - RF - RD
X
HH
A
B
HI
L K
OOO
KK
M
N
EE
FF
DD
V
J
C
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 1543
Model CBLE 125-800 HP Boilers
15
BOILER HP DIM 250 300 350
WIDTHS
Overall I 93 93 93
ID Boiler J 78 78 78
Center to Entrance Box K 51 51 51
Center to Outside Hinge KK 51 51 51
Center to Lagging L 42 42 42
Base Outside M 64 64 64
Base Inside N 52 52 52
HEIGHTS
Overall OO 115 115 115
Base to Vent Outlet O 106 106 106
Base to Return and Outlet X 101-12 101-12 101-12
Height of Base Q 10 10 10
Base to Bottom of Boiler R 17 17 17
BOILER CONNECTION
Auxiliary Connection Z 1-14 1-14 1-14
Water Return Flange (2 Dip Tube included) T 8A 8A 8A
Water Outlet Flange (2 Dip Tube Included) U 8A 8A 8A
Air Vent Y 1-12 1-12 1-12
Drain Front and Rear W 2 2 2
VENT STACK
Diameter (flgd connection) BB 20 20 20
MINIMUM CLEARANCES
Rear Door Swing DD 43 43 43
Front Door Swing EE 89 89 89
Tube Removal Rear FF 131 157 187
Tube Removal Front GG 116 142 172
MINIMUM BOILER ROOM LENGTH ALLOWING FOR DOOR SWING AND TUBE REMOVAL FROM
Rear of Boiler RR 364 417 477
Front of Boiler RF 303 356 416
Thru Window or Doorway RD 275 302 332
WEIGHT IN LBS
Water Capacity Flooded 13880 16840 20090
Approx Ship Wgt ndash 30 psigApprox Ship Wgt ndash 125 psig
2140022200
2350024300
2670027500
NOTES All connections are threaded unless indictedA ANSI 150 psig flange
Table A1-7 Model CB-LE Hot Water Boiler Dimensions
78rdquo (30 and 125 psig Design Pressure) - Sheet 2 of 2
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Model CBLE 125-800 HP Boilers
16
BOILER HP DIM 400 500 600 700 800
LENGTHS
Overall (60 ppm System) A 206 228 262 299 300
Shell B 147 168 200 233 233
Base Frame C 134 155 187 220 220
Front Head Extension (60 ppm System) D 27 28 30 34 35
Rear Head Extension E 32 32 32 32 32
Shell Ring Flange to Base F 12 12 12 12 12
Rear Ring Flange to Base G 12-12 12-12 12-12 12-12 12-12
Shell Flange to Outlet HH 139-12 156-12 182-12 216-12 216-12
Shell Flange to Return H 107 125 151-12 185 185
Over Tubesheets V 130 151 183 216 216
Shell Extension P 17 17 17 17 17
Table A1-8 Model CB-LE Hot Water Boiler Dimensions96rdquo (30 and 125 psig Design Pressure) - Sheet 1 of 2
Figure A1-6 CB-LE Hot Water 400-800 HP
s k o o r B r e v a
e l C
R
F G
WW
P
BB
D E
GG
Q
Z
Y T U
RR - RF - RD
X
HH
A
B
HI
L K
OOO
KK
M
N
EE
FF
DD
V
J
C
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Model CBLE 125-800 HP Boilers
17
WIDTHS
Overall I 113 113 113 113 115
ID Boiler J 96 96 96 96 96
Center to Entrance Box K 62 62 62 62 64
Center to Outside Hinge KK 62 62 62 62 62
Center to Lagging L 51 51 51 51 51
Base Outside M 72 72 72 72 72
Base Inside N 56 56 56 56 56
HEIGHTS
Overall OO 134 134 134 134 134
Base to Vent Outlet O 126 126 126 126 126
Height of Base Q 12 12 12 12 12
Base to Bottom of Boiler R 19 19 19 19 19
Base to Return and Outlet X 121-916 121-916 121-916 121-916 121-916
BOILER CONNECTIONS
Auxiliary Connection Z 1-14 1-14 1-14 1-14 1-14
Drain Front and Rear W 2 2 2 2 2
Water Return T 10A 10A 12A 12A 12A
Water Outlet (2rdquo Dip Tube Included) U 10A 10A 12A 12A 12A
Air Vent Y 2 2 2 2 2
VENT STACK
Diameter (Flanged Connection) BB 24 24 24 24 24
MINIMUM CLEARANCES
Rear Door Swing DD 53 53 53 53 53
Front Door Swing EE 108 108 108 108 108
Tube Removal Rear FF 131 152 184 217 217
Tube Removal Front GG 114 135 167 200 200
MINIMUM BOILER ROOM LENGTH ALLOWING FOR DOOR SWING AND TUBE REMOVAL FROM
Rear of Boiler RR 386 428 492 558 558
Front of Boiler RF 314 356 420 486 486
Thru Window or Doorway RD 308 329 361 394 394
WEIGHT IN LBS
Normal Water Capacity 20015 23300 28260 33360 33360
Approx Ship Wgt ndash 30 psig
Approx Ship Wgt ndash 125 psig
33300
37270
36900
40780
42150
46005
49650
53300
49750
53400
NOTES All connections are threaded unless indicated
A ANSI 150 psig flange
BOILER HP DIM 400 500 600 700 800
Table A1-8 Model CB-LE Hot Water Boiler Dimensions
96rdquo (30 and 125 psig Design Pressure) - Sheet 2 of 2
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Model CBLE 125-800 HP Boilers
18
BOILER HP
MOTOR HP
60PPM
30PPM
25PPM
20PPM
125 5 10 5 10
150 75 10 10 10
200 15 15 20 NA
250 75 10 15 15
300 10 15 20 30
350 15 25 40 40
400 10 15 20 20
500 15 20 25 30
600 25 30 50 60
700 30 50 75 75
800 50 75 NA NA
NOTES For elevations above 700rsquo - contact your local
Cleaver-Brooks authorized representative
Table A1-9 Model CB-LE Blower Motor Selection -
Operating Pressures 150 psig and Less and All Hot
Water Boilers
BOILER HP
MOTOR HP
60
PPM
30
PPM
25
PPM
20
PPM
125 5 10 10 10
150 10 10 10 15
200 15 20 20 NA
250 75 10 15 20
300 10 20 30 40
350 20 30 40 50
400 10 15 20 25
500 20 25 30 40
600 25 40 60 60
700 40 60 75B 75C
800 60 75A NA NA
NOTES For elevation above 700rsquo - contact your local
Cleaver-Brooks authorized representative
A Downrate to 770 hp
B Downrate to 675 hp
C Downrate to 660 hp
Table A1-10 Model CB-LE Blower Motor Selection -
Operating Pressures Greater than 150 psig (Steam
Boilers)
09-09
Table A1-11 Blower Motor Selection CB-LE NTI BoilersTable A1-12 Turndown Guarantee for CB-LE NTI
Boilers - Natural Gas amp 2 Oil
Boiler SizeTurndown
9 ppm 15 ppm
125 41 41
150 41 51
200 41 51
250 51 51
300 51 51
350 51 51
400 51 61
500 51 61
600 61 61
700 71 71
800 71 71
800 HP to be derated to 720 HP for 9 ppm and 750 HP
for 15 ppm
Altitude 700 ft and less - Design Pressure 150 psi and less
800 HP - to be de-rated to 720 HP for 9 ppm and to 750 HP for 15 ppm
mpp9mpp51Nominal
Boiler Size Blower Motor HP Blower Motor HP
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Model CBLE 125-800 HP Boilers
19
BOILER HPFUEL
SERIES
HOT WATER STEAM
30 PSIG 125 PSIG 15 PSIG 150 PSIG 200 PSIG
125100 11200 11600 11300 12000 12600200 11400 11800 11500 12400 13000
700 11300 11700 11400 12300 12900
150
100 12300 12700 12400 13200 13900
200 12500 12900 12600 13500 14200
700 12300 12700 12400 13300 14000
200
100 14400 14800 14500 15500 16300
200 14500 14900 14600 15600 16400
700 14500 14900 14600 15600 16400
250
100 20700 21500 20800 22000 23800
200 21400 22200 21500 22800 24600
700 20900 21700 21000 22500 24300
300
100 23100 23900 23200 24800 26800
200 23500 24300 23600 25200 27200
700 23400 24200 23500 25000 27000
350
100 26200 27000 26300 27600 29100
200 26700 27500 26800 27800 29300
700 26400 27200 26500 27700 29200
400
100 33000 36970 33200 36270 39380
200 33300 37270 33500 36570 39680
700 33200 37170 33400 36470 39580
500
100 36600 40470 36810 39670 43480
200 36900 40780 37110 39970 43580
700 36800 40680 37010 39870 43280
600
100 41850 45905 42000 44725 49100
200 42150 46005 42300 45025 49400
700 42050 45915 42200 44925 49300
700800
100 49450 53000 49300 51850 57015
200 49750 53300 49600 52150 57315
700 49650 53200 49500 52050 57215
NOTES1 Weights shown are based on standard product offering for current listed boilers If units are of special design and construction actual weightwill be determined at time of shipment Shipment will then be made on shippers weight and count All weights are in US pounds
Table A1-13 Model CB-LE Boiler Weights
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Model CBLE 125-800 HP Boilers
20
VALVE
SETTING15 PSIG STEAM 100 PSIG STEAM 125 PSIG STEAM 150 PSIG STEAM 200 PSIG STEAM 250 PSIG STEAM 300 PSIG STEAM
BOILERHP
NO OF
VALVES-REQD
OUTLET
SIZE(IN)
NO OF
VALVES-REQD
OUTLET
SIZE(IN)
NO OF
VALVESREQD
OUTLET
SIZE(IN)
NO OF
VALVES-REQD
OUTLET
SIZE(IN)
NO OF
VALVES-REQD
OUTLET
SIZE(IN)
NO OF
VALVESREQD
OUTLET
SIZE(IN)
NO OF
VALVESREQD
OUTLET
SIZE(IN)
125 1 3 2 1-12 2(1) 1-12(1) 1-14
2(1) 1-12(1) 1-14
2(1) 1-14(1) 1
2 1 2 1
150 1 3 2(1) 2(1) 1-12
2 1-14 2(1) 1-12(1) 1-14
2(1) 1(1) 1-14
2 1 2 1
200 2 2-12 2 2 2 1-12 2 1-12 2(1) 1-12(1) 1-14
2 1-14 2(1) 1(1) 1-14
250 2(1) 2-12(1) 3
2(1) 2-12(1) 2
2(1)2(1)1-12
2(1) 2(1) 1-12
2(1)1-12(1)1-14
2(1) 1-12(1) 1-14
2 1-14
300 2 3 2(1) 2-12(1) 2
2 2 2(1) 2(1) 1-12
2 1-12 2(1)1-12(1)1-14
2(1) 1-12(1) 1-14
350 3(1) 2(2) 3
3(1) 2-12(2) 2
2(1)2(1)1-12
2 2 2(1) 1-12(1) 2
2 1-12 2(1) 1-12(1) 1-14
400 3(2) 3(1) 2-12
3(1) 2(2) 2-12
2(1)2(1)2-12
2(1) 2-12(1) 2
2(1) 1-12(1) 2
2(1) 2(1) 1-12
2 1-12
500 3 (3) 3 3 2-12 2 2-12 2(1) 2-12(1) 2
2(1) 2(1) 2-12
2(1) 2(1)1-12
2(1) 1-12(1) 2
600 4 3 4(3) 2-12(1) 2
3 2-12 2 2-12 2(1) 2(1) 2-12
2 2 2 2
700 5(3) 3(2) 2-12
5(3) 2-12(2) 2
3 2-12 3(2) 2-12(1) 2
2 2-12 2(1) 2(1) 2-12
2 2
800 5(3) 3(2) 2-12
5(3) 2-12(2) 2
4(3) 2-12(1) 2
3(2) 2-12(1) 2
2 2-12 2(1) 2(1) 2-12
2(1) 2(1) 2-12
NOTES Valve manufacturers are Kunkle Consolidated or Conbraco depending on availability This table revised 042012
Table A1-14 Steam Boiler Safety Valve Openings
VALVE
SETTING 30 PSIG HW 60 PSIG HW 100 PSIG HW 125 PSIG HW
BOILER HPNO OF
VALVESREQD
OUTLETSIZE(IN)
NO OFVALVESREQD
OUTLETSIZE(IN)
NO OFVALVESREQD
OUTLETSIZE(IN)
NO OFVALVESREQD
OUTLETSIZE(IN)
125 1 2-12 1 2 1 2 1 1-14
150 1 2-12 1 2-12 1 2 1 2
200 2(1) 2-12(1) 1-14
1 2-12 1 2 1 2
250 2 (1) 2(1) 2-12
1 2-12 1 2-12 1 2
300 2 2-12 2(1) 1(1) 2-12
1 2-12 1 2-12
350 3(2) 2-12(1) 1
2(1) 2-12(1) 2
1 2-12 1 2-12
400 3 (1) 2(2) 2-12 2 (1) 2(2) 2-12 2 (1) 1(1) 2-12 1 2-12
500 4 (1) 1(3) 2-12
2 2-12 2(1) 2-12(1) 1-14
2(1) 1(1) 2-12
600 4(3) 2-12(1) 2
3(1) 1-1(2) 2-12
2(1) 2(1) 2-12
2(1) 2-12(1) 1-14
700 amp 800 5 (1) 1(4) 2-12
3(1) 2(2) 2-12
2 2-12 2(1) 2-12(1) 2
NOTES Hot water relief valves are Kunkle 537
Table A1-15 Hot Water Boiler Relief Valve Openings
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Model CBLE 125-800 HP Boilers
21
BOILER HP A B C D E F G X1 X2 X3
125 6 9 112 39-12 57-12 4 44-12 10 9-34 22-12
150 6 9 136 39-12 57-12 4 44-12 10 9-34 22-12
200 6 9 167 39-12 57-12 4 44-12 10 9-34 22-12
250 6 12 131 46 70 4 56 10 22 22-12
300 6 12 158 46 70 4 56 10 22 22-12
350 6 12 188 46 70 4 56 10 22 22-12
NOTE
All numbers in table are in inches
6-inch high mounting piers recommended for use beneath the boiler base frame The use of these piers provides increased inspection
accessibility to the piping beneath the boiler and added height for washing down the area beneath the boiler
Figure A1-7 Space Required to Open Rear Head on Model CB-LE Boilers Equipped with Davits
BOILER HPDIMENSIONS (INCHES)
A B C D E
CB-125 THRU CB-200 33 55 45 68 32
CB-250 THRU CB-350 42 69 58 86 43
CB-400 THRU CB-800 51 88 71 109 53
Figure A1-8 Model CB-LE Boiler Mounting Piers (60rdquo and 78rdquo)
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Model CBLE 125-800 HP Boilers
22
BOILER HP A B C D E F G
400 6 14 134 50 78 6-12 58-78
500 6 14 155 50 78 6-12 58-78
600 6 14 187 50 78 6-12 58-78
700-800 6 14 220 50 78 6-12 58-78
NOTE1 All numbers in table are in inches2 6-inch high mounting piers recommended for use beneath the boiler base frame The use of these piers provides in-
creased inspection accessibility to the piping beneath the boiler and added height for washing down the area beneaththe boiler
Figure A1-9 Model CB-LE Boiler Mounting Piers (96rdquo)
CBLE 250-350HP
CBLE 400-800HP
Motor HP Hole Number
75 1
15 1
25 2
40 3
Motor HP Hole Number
10 1
20 1
30 250 2
75 3
Figure A1-10 Front Davit Support
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Model CBLE 125-800 HP Boilers
23
BOILERHP
VIEW
ALL DIMENSIONS IN INCHES
A B C D E
125 All B 80-14 29-34 70-12 10 3
150 All B 80-14 29-34 83-12 10 3
200 All B 80-14 29-34 114-12 10 3
250Steam B 99 36 72 10 3
Hot Water B 99 36 81 10 3
300
Steam B 99 36 99 10 3
Hot Water B 99 36 108 10 3
350Steam B 99 36 129 10 3
Hot Water B 99 36 138 10 3
400Steam B 119 35-34 78 11 3
Hot Water B 119 35-34 78 11 3
500Steam B 119 35-34 99 11 3
Hot Water B 119 35-34 99 11 3
600Steam B 119 35-34 131 11 3
Hot Water B 119 35-34 131 11 3
700 amp 800Steam B 119 35-34 164 11 3
Hot Water B 119 35-34 164 11 3
NOTE A B and C dimensions may vary by 12 inch
Figure A1-11 Lifting Lug Location Model CB-LE Boilers
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Model CBLE 125-800 HP Boilers
24
PERFORMANCE DATA
The Low Emission Option provides NOx reduction at current published andpredicted fuel-to-steam efficiencies
Specifying BoilerEfficiency
Cleaver-Brooks offers an industry leading fuel-to-steam boiler efficiency guaranteefor Model CB-LE Firetube Boilers The guarantee is based on the fuel-to-steam
efficiencies shown in the efficiency tables and the following conditions Theefficiency percent number is only meaningful if the specific conditions of theefficiency calculations are clearly stated in the specification (see Cleaver-Brookspublication CB-7768 for a detailed description of efficiency calculations)
When specifying the efficiencies in the tables be sure to include the specificguarantee conditions to maximize the effectiveness of your efficiency specification Ifyou have any questions regarding the efficiency specifications please contact yourlocal Cleaver-Brooks authorized representative
EfficiencySpecification
The boiler manufacturer shall guarantee that at the time of startup the boiler willachieve fuel-to-steam efficiency (as shown in Table A1-16 and Table A1-17) at100 firing rate (add efficiency guarantees at 25 50 and 75 of rating if
required) If the boiler(s) fail to achieve the corresponding guaranteed efficiency aspublished the boiler manufacturer will rebate to the ultimate boiler owner tenthousand dollars ($10000) for every full efficiency point (10) that the actualefficiency is below the guaranteed level
The specified boiler efficiency is based on the following conditions
1 Fuel specification used to determine boiler efficiency
bull Natural Gas
Carbon (wt) = 6998Hydrogen (wt) = 2231Sulfur (wt) = 00
Heating value Btulb = 21830bull No 2 Oil
Carbon (wt) = 858Hydrogen (wt) = 127Sulfur (wt) = 02Heating value Btulb = 19420
No 6 Oil
Carbon (wt) = 866Hydrogen (wt) = 109Sulfur (wt) = 209Heating value Btulb = 18830
2 Efficiencies are based on ambient air temperature of 80 degF relative humidity of30 and 15 excess air in the exhaust flue gas
3 Efficiencies are based on manufacturerrsquos published radiation and convectionlosses (For Cleaver-Brooks radiation and convection losses see BoilerEfficiency Facts Guide publication number CB-7767)
4 Any efficiency verification testing will be based on the stack loss method
For efficiencies and stack temperatures at operating pressures not listed followthese procedures
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
25
When the operating steam pressure is between 10 psig and 125 psig interpolatethe values from the efficiency tables
When the operating steam pressure is above 125 psig estimated efficiency can becalculated as follows
Example
Boiler 350 hpFuel natural gas
Operating steam pressure 200 psig
Find the fuel-to-steam efficiency at 100 firing rate From Table A1-16 for a 350hp boiler operating at 100 firing rate and an operating steam pressure of 125psig the efficiency is 825
Using Figure A1-12 note that the stack temperature increases 36 degF at the higheroperating pressure To estimate boiler efficiency use this rule of thumb For every40 degF increase in stack temperature efficiency decreases by 1 Since the stacktemperature rise is 36 degF the decrease in the boiler efficiency at 200 psig operatingpressure is calculated as follows 3640 =9 Therefore the boiler efficiency at200 psig operating pressure is 825 -9 = 816
Emissions The emission data included in this section consists of typical emission levels forModel CB boilers equipped with 60 30 25 and 20 ppm LE Options when firingnatural gas and No 2 oil
Notice
The data in Table A1-18 and Table A1-19 represent typical emission levels only
Guaranteed emission levels are available from your local Cleaver-Brooks authorized
representative
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
26
BOILER
HP
OPERATING PRESSURE = 10 psig OPERATING PRESSURE = 125 psig
OF LOAD OF LOAD
25 50 75 100 25 50 75 100
125 833 836 834 832 804 809 810 810
150 844 846 845 843 815 820 820 821
200 850 853 851 849 822 827 827 827
250 850 847 840 833 820 820 816 813
300 853 853 846 839 826 827 822 819
350 853 857 852 845 826 832 828 825
400 845 847 846 844 818 822 824 822
500 855 857 855 852 828 832 833 831
600 857 860 858 856 829 835 836 835
700 857 862 860 857 830 836 836 836
800 858 861 859 856 831 836 837 835
Table A1-16 Predicted Fuel-to-Steam Efficiencies - Natural Gas
Figure A1-12 Predicted Stack Temperature Increase for Pressure Greater Than 125 psig
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Model CBLE 125-800 HP Boilers
27
Table A1-18 CB-LE Boilers - Natural Gas Emission Levels
POLLUTANT
ESTIMATED LEVEL
60 ppm 30 ppm 25 ppm 20 ppm 15 ppm 9 ppm
CO ppmA
lbMMBtu
50150B
004011
50150B
004011
50150B
004011
50150B
004011
50
004
50
004
NOx ppmA
lbMMBtu
60
007
30
0035
25
003
20
0024
15
0018
9
0011
SOx ppmA
lbMMBtu
1
0001
1
0001
1
0001
1
0001
1
0001
1
0001
HCVOC5 ppmA
lbMMBtu
10
0004
10
0004
10
0004
10
0004
10
0004
10
0004
PM ppmA
lbMMBtu
-
001
-
001
-
001
-
001
-
001
-
001
A ppm levels are given on a dry volume basis and corrected to 3 oxygen (15 excess air)
B CO emission for 60 30 25 amp 20 ppm system is 50 ppm (004 lbMMBtu) when boiler is operating above 50 of rated capacity
CO emission is 150 ppm (011 lbMMBtu) when boiler is operating below 50 of rated capacity
Table A1-17 Predicted Fuel-to-Steam Efficiencies - No 2 Oil
BOILER
HP
OPERATING PRESSURE = 10 psig OPERATING PRESSURE = 125 psig
OF LOAD OF LOAD
25 50 75 100 25 50 75 100
125 867 869 867 866 837 842 843 843
150 878 880 878 876 848 853 853 854
200 884 887 884 882 856 860 860 860
250 883 881 874 867 853 853 849 847
300 886 887 880 873 859 860 855 852
350 886 890 885 878 859 866 861 858
400 879 881 879 876 851 855 856 855
500 889 890 889 886 861 865 866 864
600 890 894 892 890 862 868 869 868
700 891 895 893 891 863 869 870 869
800 892 895 893 890 864 869 870 868
Table A1-19 CB-LE Boilers - No 2 Oil Emission Levels
POLLUTANTESTIMATED LEVEL
60 ppm LE Option 30 25 20 ppm LE Option 15 ppm 9 ppm
CO ppmA
lbMMBtu
50
0039
50
0039
50
0039
50
0039
NOx ppmA
lbMMBtu140
018690
012085
011370
0093
SOx ppmA
lbMMBtu
278
052
278
052
278
052
278
052
HCVOCs ppmA
lbMMBtu
4
0002
4
0002
4
0002
4
0002
PM ppmA
lbMMBtu
-
0025
-
0025
-
0025
-
0025
A ppm levels are given on a dry volume basis and corrected to 3 oxygen (15 excess air)
BASED ON THE FOLLOWING CONSTITUENT LEVELS
Fuel-bound Nitrogen content = 0015 by weight
Sulfur content = 05 by weight
Ash content = 001 by weight
09-09
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Model CBLE 125-800 HP Boilers
28
ENGINEERING DATA
Sound Level Table A1-20 gives a summary of predicted sound pressure levels for Model CBboilers with 30 ppm LE Options Contact your local Cleaver-Brooks authorizedrepresentative for sound levels or other LE Options
Units - The units for the sound level tables are dbA (decibels measured on the A-weighted scale) in reference to 00002 microbars (20 micro-Newtons per square
meter) Their reference are standardly used in specifying and reporting soundpressure levels on industrial equipment
Test Method - The sound pressure levels in the above tables were obtained fromtests in accordance with the ldquoABMA Test Code for the Measurement of Sound fromPackaged Boilersrdquo In accordance with this code the sound pressure levels reportedwere measured on the boiler centerline 4-12 feet vertically above the bottom of thebase rails and 3 feet horizontally in front of the end of the blower motor or frontsurface of the electrical cabinet
Sound Level Meter - The sound level meter used complies with ANSI S14 Type 1(Precision) The readings are taken with the meter set for slow response andcorrected for background levels
Sound Pressure - The large size boilers the need for auxiliary equipment and thenecessary interconnecting piping make it impractical (and sometimes impossible) toprovide a boiler testing environment which is suitable for taking the data needed todevelop Sound Pressure Power levels
Typical Values - Sound pressure levels (dbA) for the same boiler will vary betweenboiler rooms Sound levels will vary with motor type NOx levels and altitudes Inaddition variations will occur between different people using different sound meterson the same boiler And finally no two boilers can be expected to give precisely thesame sound levels For these reasons we can only predict but not guarantee soundlevels (dbA)
BOILER HP 125 150 200 250 300 350 400 500 600 700 800
HFO dbA 84 84 84 83 84 85 84 85 85 88 90
LFO dbA 82 82 83 81 82 83 82 83 83 84 89
HFG dbA 82 82 83 82 83 84 83 83 85 87 90
LFG dbA 81 81 82 81 82 83 81 81 82 84 88
NOTES1 Sound pressure levels measured on boilers operating in various locations and ex-
pressed in dbA are as shown2 Based on standard altitude fans and fan motors 60 Hz3 Contact your local Cleaver-Brooks authorized representative for sound levels of 60 25or 20 ppm LE Options
ABBREVIATIONS
HF = High Fire LF = Low Fire O = Oil G = Gas
Table A1-20 Model CBLE Predicted Sound Levels 30 ppm NOx Systemss
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Model CBLE 125-800 HP Boilers
29
Gas-Fired Burners Table A1-21 shows gas pressure with standard over- and undersized gas trains
Table A1-22 shows minimum required gas pressure altitude conversion
Figure A1-13 shows standard gas train sizes and locations for Model CB FiretubeBoilers
Figure A1-14 shows typical gas train piping layouts for multiple boiler applications
Figure A1-15 shows standard gas train components
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Model CBLE 125-800 HP Boilers
30
Table A1-21 Standard Undersize and Oversize Gas Trains
CBLE
BOILER HP GAS TRAINSIZE
UPSTREAMVALVE
DOWNSTREAMVALVE
EMISSIONS LEVEL 09 ppm 15 ppm 20 ppm 30 ppm 60 ppm UC
125 HP 15 in BB BB 33 - 49 psi 33 - 49 psi 08 - 50 psi 07 - 50 psi 07 - 50 psi 07 - 50 ps
125 HP 15 in PC PC 34 - 50 psi 34 - 50 psi 09 - 50 psi 08 - 50 psi 08 - 50 psi 08 - 50 ps
125 HP 20 in BB BB 31 - 33 psi 31 - 33 psi 06 - 08 psi 06 - 07 psi 05 - 07 psi 05 - 07 ps
125 HP 20 in PC PC 31 - 34 psi 31 - 34 psi 06 - 09 psi 06 - 08 psi 06 - 08 psi 05 - 08 ps
125 HP 25 in PC PC 30 - 31 psi 30 - 31 psi 04 - 06 psi 04 - 06 psi 04 - 05 psi 04 - 05 ps
125 HP 30 in PC PC 29 - 30 psi 29 - 30 psi 04 - 04 psi 04 - 04 psi 04 - 04 psi 03 - 04 ps
125 HP 40 in PC PC 29 - 29 psi 29 - 29 psi 04 - 04 psi 03 - 04 psi 03 - 04 psi 03 - 03 ps
150 HP 15 in BB BB 37 - 55 psi 39 - 58 psi 10 - 47 psi 09 - 50 psi 09 - 50 psi 09 - 50 ps
150 HP 15 in PC PC 38 - 57 psi 40 - 60 psi 11 - 42 psi 11 - 50 psi 10 - 50 psi 10 - 50 ps
150 HP 20 in BB BB 34 - 37 psi 36 - 39 psi 07 - 10 psi 06 - 09 psi 06 - 09 psi 06 - 09 ps
150 HP 20 in PC PC 34 - 38 psi 36 - 40 psi 07 - 11 psi 07 - 11 psi 07 - 10 psi 06 - 10 ps
150 HP 25 in PC PC 32 - 34 psi 34 - 36 psi 05 - 07 psi 04 - 06 psi 04 - 06 psi 04 - 06 ps
150 HP 30 in PC PC 32 - 32 psi 34 - 34 psi 04 - 05 psi 04 - 04 psi 04 - 04 psi 03 - 04 ps
150 HP 40 in PC PC 31 - 32 psi 33 - 34 psi 04 - 04 psi 03 - 04 psi 03 - 04 psi 03 - 03 ps
200 HP 15 in BB BB 46 - 69 psi 50 - 75 psi 16 - 50 psi 15 - 50 psi 15 - 50 ps
200 HP 15 in PC PC 48 - 72 psi 52 - 78 psi 18 - 50 psi 17 - 50 psi 17 - 50 ps
200 HP 20 in BB BB 41 - 46 psi 45 - 50 psi 10 - 16 psi 10 - 15 psi 10 - 15 ps
200 HP 20 in PC PC 41 - 48 psi 45 - 52 psi 11 - 18 psi 11 - 17 psi 10 - 17 ps
200 HP 25 in PC PC 38 - 41 psi 42 - 45 psi 07 - 10 psi 07 - 10 psi 06 - 10 ps
200 HP 30 in PC PC 36 - 38 psi 40 - 42 psi 06 - 07 psi 05 - 07 psi 05 - 06 ps
200 HP 40 in PC PC 36 - 36 psi 40 - 40 psi 05 - 06 psi 05 - 05 psi 04 - 05 ps
250 HP 15 in BB BB 41 - 62 psi 44 - 67 psi 24 - 50 psi 24 - 27 psi 24 - 26 psi 23 - 26 ps
250 HP 15 in PC PC 45 - 67 psi 48 - 72 psi 28 - 50 psi 27 - 28 psi 27 - 27 psi 27 - 27 ps
250 HP 20 in BB BB 33 - 38 psi 37 - 41 psi 16 - 24 psi 16 - 24 psi 16 - 24 psi 15 - 23 ps
250 HP 20 in PC PC 34 - 40 psi 37 - 43 psi 17 - 28 psi 17 - 27 psi 16 - 27 psi 16 - 27 ps
250 HP 25 in PC PC 29 - 33 psi 32 - 37 psi 11 - 16 psi 11 - 16 psi 11 - 16 psi 10 - 15 ps
250 HP 30 in PC PC 27 - 29 psi 31 - 32 psi 09 - 11 psi 09 - 11 psi 09 - 11 psi 09 - 10 ps
250 HP 40 in PC PC 26 - 27 psi 29 - 31 psi 08 - 09 psi 08 - 09 psi 08 - 09 psi 08 - 09 ps
300 HP 15 in - 20 in BB BB 55 - 83 psi 57 - 85 psi 30 - 50 psi 30 - 36 psi 30 - 35 psi 30 - 35 ps
300 HP 15 in - 20 in PC PC 58 - 87 psi 60 - 90 psi 33 - 50 psi 33 - 37 psi 33 - 36 psi 33 - 36 ps
300 HP 20 in BB BB 46 - 55 psi 47 - 57 psi 21 - 30 psi 21 - 30 psi 20 - 30 psi 20 - 30 ps
300 HP 20 in PC PC 47 - 58 psi 48 - 60 psi 22 - 33 psi 22 - 33 psi 21 - 33 psi 21 - 33 ps
300 HP 30 in PC PC 39 - 46 psi 40 - 47 psi 13 - 21 psi 13 - 21 psi 12 - 20 psi 12 - 20 ps
300 HP 40 in PC PC 37 - 39 psi 39 - 40 psi 11 - 13 psi 11 - 13 psi 10 - 12 psi 10 - 12 ps
350 HP 15 in - 20 in BB BB 64 - 90 psi 62 - 90 psi 42 - 50 psi 42 - 50 psi 41 - 50 psi 41 - 50 ps
350 HP 15 in - 20 in PC PC 68 - 90 psi 66 - 90 psi 46 - 50 psi 46 - 50 psi 45 - 50 psi 45 - 50 ps
350 HP 20 in BB BB 54 - 64 psi 53 - 62 psi 32 - 42 psi 32 - 42 psi 32 - 41 psi 31 - 41 ps
350 HP 20 in PC PC 56 - 68 psi 54 - 66 psi 34 - 46 psi 34 - 46 psi 33 - 45 psi 33 - 45 ps
350 HP 25 in PC PC 43 - 54 psi 42 - 53 psi 21 - 32 psi 21 - 32 psi 20 - 32 psi 20 - 31 ps
350 HP 30 in PC PC 40 - 43 psi 38 - 42 psi 17 - 21 psi 17 - 21 psi 17 - 20 psi 16 - 20 ps
350 HP 40 in PC PC 37 - 40 psi 36 - 38 psi 15 - 17 psi 15 - 17 psi 14 - 17 psi 14 - 16 ps
400 HP 15 in - 20 in BB BB 69 - 90 psi 69 - 90 psi 46 - 50 psi 46 - 50 psi 45 - 50 psi 45 - 50 ps
400 HP 15 in - 20 in PC PC 74 - 90 psi 75 - 90 psi 51 - 87 psi 51 - 77 psi 51 - 77 psi 51 - 77 ps
400 HP 20 in BB BB 55 - 69 psi 56 - 69 psi 32 - 46 psi 32 - 46 psi 32 - 45 psi 32 - 45 ps
400 HP 20 in PC PC 57 - 74 psi 58 - 75 psi 34 - 50 psi 34 - 50 psi 34 - 50 psi 34 - 50 ps
400 HP 25 in PC PC 41 - 55 psi 42 - 56 psi 18 - 32 psi 18 - 32 psi 18 - 32 psi 18 - 32 ps
400 HP 30 in PC PC 37 - 41 psi 38 - 42 psi 13 - 18 psi 13 - 18 psi 13 - 18 psi 13 - 18 ps
400 HP 40 in PC PC 34 - 37 psi 35 - 38 psi 11 - 13 psi 10 - 13 psi 10 - 13 psi 10 - 13 ps
500 HP 20 in - 25 in BB PC 58 - 76 psi 58 - 76 psi 46 - 50 psi 46 - 50 psi 45 - 50 psi 45 - 50 ps
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Model CBLE 125-800 HP Boilers
31
BB = Butter Ball PC = Plug Cock
NOTE In cases where the gas train increases in size after the regulating valve two diameters are listed The first number is the customer connection size
500 HP 20 in - 25 in PC PC 60 - 83 psi 60 - 83 psi 48 - 50 psi 47 - 50 psi 47 - 50 psi 47 - 50 psi
500 HP 25 in PC PC 39 - 58 psi 39 - 58 psi 27 - 46 psi 27 - 46 psi 27 - 45 psi 26 - 45 psi
500 HP 30 in PC PC 33 - 39 psi 33 - 39 psi 20 - 27 psi 20 - 27 psi 20 - 27 psi 20 - 26 psi
500 HP 40 in PC PC 28 - 33 psi 28 - 33 psi 16 - 20 psi 16 - 20 psi 15 - 20 psi 15 - 20 psi
600 HP 20 in - 25 in BB PC 80 - 90 psi 80 - 90 psi 65 - 90 psi 65 - 90 psi 64 - 89 psi 63 - 88 psi
600 HP 20 in - 25 in PC PC 82 - 90 psi 82 - 90 psi 67 - 100 psi 67 - 100 psi 66 - 99 psi 66 - 99 psi
600 HP 25 in PC PC 54 - 80 psi 54 - 80 psi 39 - 50 psi 38 - 50 psi 38 - 50 psi 37 - 50 psi
600 HP 25 in - 30 in PC PC 52 - 54 psi 52 - 54 psi 37 - 39 psi 36 - 38 psi 35 - 38 psi 35 - 37 psi
600 HP 30 in PC PC 43 - 52 psi 43 - 52 psi 28 - 37 psi 27 - 36 psi 27 - 35 psi 26 - 35 psi
600 HP 40 in PC PC 37 - 43 psi 37 - 43 psi 22 - 28 psi 21 - 27 psi 20 - 27 psi 20 - 26 psi
700 HP 20 in - 30 in BB PC 110 - 150 psi 107 - 150 psi 87 - 131 psi 86 - 130 psi 86 - 129 psi 86 - 128 psi
700 HP 20 in - 30 in PC PC 113 - 150 psi 110 - 150 psi 90 - 135 psi 89 - 134 psi 89 - 134 psi 89 - 133 psi
700 HP 25 in - 30 in PC PC 71 - 90 psi 68 - 90 psi 48 - 50 psi 47 - 50 psi 47 - 50 psi 46 - 50 psi
700 HP 30 in PC PC 60 - 71 psi 57 - 68 psi 36 - 48 psi 36 - 47 psi 35 - 47 psi 35 - 46 psi
700 HP 40 in PC PC 51 - 60 psi 48 - 57 psi 28 - 36 psi 27 - 36 psi 27 - 35 psi 26 - 35 psi
800 HP 20 in - 30 in BB PC 108 - 150 psi 107 - 150 psi 106 - 150 psi
800 HP 20 in - 30 in PC PC 112 - 150 psi 111 - 150 psi 110 - 150 psi800 HP 25 in - 30 in PC PC 61 - 90 psi 60 - 100 psi 59 - 100 psi
800 HP 30 in PC PC 48 - 61 psi 47 - 50 psi 46 - 50 psi
800 HP 40 in PC PC 35 - 48 psi 34 - 47 psi 34 - 46 psi
Standard Gas Train size is highlighted
Table A1-21 Standard Undersize and Oversize Gas Trains (Continued)
CBLE
BOILER HP GAS TRAINSIZE
UPSTREAMVALVE
DOWNSTREAMVALVE
EMISSIONS LEVEL 09 ppm 15 ppm 20 ppm 30 ppm 60 ppm UC
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Model CBLE 125-800 HP Boilers
32
ALTITUDE(FT)
CORRECTIONFACTOR
ALTITUDE(FT)
CORRECTIONFACTOR
1000 104 6000 1252000 107 7000 130
3000 111 8000 135
4000 116 9000 140
5000 121 - -
To obtain minimum required gas pressure at altitudesabove 700 feet multiply the pressure by the listed factorsInches WC x 0577 = ozsq-inOzsq-in x 1732 = Inches WCInches WC x 00361= psigOzsq-in x 00625 = psigPsig x 2771 = Inches WCPsig x 160 = Ozsq-in
Table A1-22 Minimum Required Regulated Gas Pressure
Altitude Conversion
BOILERHP
TYPE OF GAS AND HEAT CONTENT
NATURAL GAS1000 (Btucu-ft)
PROPANE GAS2550 (Btucu-ft)
125 5103 2000
150 6124 2402
200 8165 3202
250 10206 4002
300 12247 4802
350 14280 5600
400 16329 6404
500 20415 8006
600 24494 9605
700 28576 11206
800 32659 12807
Table A1-23 Maximum Gas Consumption (CFH)
for Natural Gas and Propane Vapor
BOILER
HP
MODEL CB
CONNECTION SIZE
(IN NPT)
LOCATIONDIMENSION
ldquoArdquo (IN)
125-200 1-12 52
250-350 2 56
400 2 58
500 2-12 60
600 2-12 - 3 71
700-800 3 65
Figure A1-13 Standard Gas Train Connection Size and Location
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Model CBLE 125-800 HP Boilers
33
Oil-Fired Burners Fuel oil consumption information is shown on the boiler rating sheets in theDimensions and Rating Section
Figure A1-16 shows the oil connection sizes and locations for Model CB Boilersfiring No 2 oil
Figure A1-17 through Figure A1-18 show typical oil systems and layouts
Figure A1-19 and Figure A1-20 show the detail of an oil transfer tank (day tank)typically utilized to provide a storage reservoir between the oil system supply pumpand the boiler oil pump
General BoilerInformation
Table A1-24 shows blowdown tank sizing information
Table A1-25 provides heating surface information
Table A1-26 provides steam volume and disengaging area information
Table A1-27 provides recommended steam nozzle sizes
Table A1-28 provides recommended non-return valve sizes
Boiler RoomInformation
Figure A1-21 shows typical boiler room length requirements
Figure A1-22 shows typical boiler room width requirements
Figure A1-23 shows typical breeching arrangements
Stack SupportCapabilities
All standard Cleaver-Brooks Firetube Boilers with an LE option can support up to2000 lbs without additional support
LE Boilers 250 hp through 800 hp can be reinforced to support 3000 lbs
StackBreechingSize Criteria
The design of the stack and breeching must provide the required draft at each boilerflue gas outlet Proper draft is critical to burner performance
Although constant pressure at the flue gas outlet of the Model CB-LE is not requiredit is necessary to size the stackbreeching to limit flue gas pressure variation Theallowable pressure range is ndash025 WC to +025 WC
For additional information please review Section I4 General Engineering Data(Stacks) and Section F Stacks Stack and breeching sizes should always be providedby a reputable stack supplier who will design the stack and breeching system basedon the above criteria Your local Cleaver-Brooks authorized representative is capableof assisting in your evaluation of the stackbreeching design
Boiler RoomCombustion Air
When determining boiler room air requirements the size of the room air flow andvelocity of air must be reviewed as follows
1 Size (area) and location of air supply openings in boiler room
A Two (2) permanent air supply openings in the outer walls of the boiler room
are recommended Locate (1) at each end of the boiler room preferablybelow a height of 7 feet This allows air to sweep the length of the boiler
B Air supply openings can be louvered for weather protection but they shouldnot be covered with fine mesh wire as this type of covering has poor air flowqualities and is subject to clogging by dust or dirt
C A vent fan in the boiler room is not recommended as it could create a slightvacuum under certain conditions and cause variations in the quantity ofcombustion air This can result in unsatisfactory burner performance
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Model CBLE 125-800 HP Boilers
34
D Under no condition should the total area of the air supply openings be lessthan (1) square foot
E Size the openings by using the formulaArea (sq-ft) = CFMFPM
2 Amount of air required (cfm)
A Combustion Air = Rated bhp x 8 cfmbhp
B Ventilation Air = Maximum bhp x 2 cfmbhp
C Total recommended air = 10 cfmbhp - up to 1000 feet elevation Add 3percent more per 1000 feet of added elevation
3 Acceptable air velocity in Boiler Room (fpm)
A From floor to (7) foot height - 250 fpm
B Above (7) foot height - 500 fpm
Example Determine the area of the boiler room air supply openings for (1) 300 hpboiler at 800 feet altitude The air openings are to be 5 feet above floor level
bull Air required 300 x 10 = 3000 cfm (from 2B above)
bull Air velocity Up to 7 feet = 250 fpm (from 3 above)
bull Area Required Area = cfm = 3000250 = 12 sq-ft total
bull AreaOpening 122 = 6 sq-ftopening (2 required)
Notice
Consult local codes which may supersede these requirements
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Model CBLE 125-800 HP Boilers
35
This figure illustrates the basic gas valve arrangement on Cleaver-BrooksModel CB boiler and shows the contractors connection point The valves andcontrols between the contractor connection point and the gas main in thestreet are representative of a typical installation Actual requirements mayvary depending on local codes or local gas company requirements which
should be investigated prior to preparation of specifications and prior to con-struction
A Utilities service valveB Utilities service regulatorC Gas meterD Piping from meter to boiler
The size of the gas line from the meter to the gas pressure regulator at theboiler can be very important if gas pressures are marginal The gas line sizingis dependent on
1 Gas pressure at outlet of gas meter (C)2 Rate of gas flow required CFH3 Length of pipe run (D)4 Pressure required at contractor connection point
The local gas utility will advise the pressure that is available at the outlet oftheir meter
Figure A1-14 Typical Gas Piping Layout
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Model CBLE 125-800 HP Boilers
36
5
6
S
1
3
42
PILOT GAS LINE
S
S
MAIN GAS LINE
M M
ToBurner
GasSupply
11
10
97
12138
14 15
FLOW
FLOW
Figure A1-15 Model CB-LE Gas Train Components
BOILER
HP
MODEL CB
SUPPLYANDRE-
TURNCONN SIZES
(IN)(NPT)
A(IN)
RECOMMENDED OIL LINEA
SIZES(STANDARD PIPE)
(IN - IPS)
STOR-AGE
TANK TOBOILER
OR PUMPCONNECT
PUMPTO
BOILER
RE-TURN
LINE TOTANK
125150 200
34 12-12 1 1 1
250300350
34 34 1 1 1
400500600
34 11-34 1 1 1
700800
1 11-34 1 1 1
NOTE See No 2 Oil Line Sizing Instruction for systems with other conditions A For suction line condition with a maximum of 10 Feet of lift and a
total of 100 feet of suction line
Figure A1-16 No2 Oil Connection Size Location and Recommended Line Sizes
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Model CBLE 125-800 HP Boilers
37
Figure A1-17 No 2 Oil Piping Single Boiler
Installation Remote Oil Pump
Figure A1-18 No 2 Oil Piping Multiple Boiler
Installation Remote Oil Pumps
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
38
Figure A1-19 No 2 Oil Piping Multiple Boiler
Installation
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
39
Figure A1-20 No 2 Oil Piping Typical Arrangement
Table A1-24 Model CB-LE Blowdown
Tank Sizing
BOILER HP WATER (GAL)
125 97
150 118
200 145
250 146
300 176
350 210
400 177
500 209
600 250
700 800 296
NOTE Quantity of water removed from boiler by lowering normal water line 4
BOILER
HP
HEATING SURFACE (SQ-FT)
FIRESIDE WATERSIDE
125 625 679
150 750 820
200 1000 1092
250 1250 1346
300 1500 1623
350 1750 1932
400 2000 2151
500 2500 2691
600 3000 3262
700 800 3500 3810
Table A1-25 Heating Surface Model CB-LE
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Model CBLE 125-800 HP Boilers
40
BOILER HPSTEAM VOLUME CU-FT
STEAM DISENGAGING AREASQ-IN
HIGH PRESSUREA LOW PRESSUREB HIGH PRESSUREA LOW PRESSUREB
125 254 366 5371 5887
150 307 443 6511 7138
200 377 544 7985 8752
250 492 706 7980 8695
300 595 853 9651 10516
350 709 1017 11507 12538
400 721 979 9793 10593
500 837 1137 11376 12303
600 1015 1378 13787 14911
700-800 1198 1627 16273 17600
NOTE Based on normal water levelA Based on 150 psig design pressureB Based on 15 psig design pressure
Table A1-26 Steam Volume and Disengaging Area
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Model CBLE 125-800 HP Boilers
41
BOILERHP
BOILERCAPACITY(LBSHR)
OPERATING PRESSURES (PSIG)
50 75 100 125 150 175 200 250
100 3450
2-12 2-12 NA NA NA NA NA NA
125 4313 3 2-12 2-12 2-12 NA NA NA NA
150 5175 3 3 2-12 2-12 2-12 2-12 NA NA
200 6900 3 3 3 3 3 2-12 2-12 2-12
250 8625 4 3 3 3 3 3 3 3
300 10350 4 4 4 3 3 3 3 3
350 12025 4 4 4 4 4 3 3 3
400 13800 5 4 4 4 4 4 4 3
500 17210 6 5 5 4 4 4 4 4
600 20700 6 6 5 5 5 4 4 4
700 24150 6 6 6 5 5 5 5 4
800 27600 6 6 6 6 6 5 5 5
NOTE Valve sizes (300 Flanges) given in inchesStandard Non-Return valve selections limited to a maximum 2 to 1 turndown(50 of full load) selections based on typical non-return valve sizing recommen-dations For final valve selection contact your C-B authorized representative Forhigh turndown applications see Boiler Book Section I3 Table I3-3 Indicates pressure drop of less than 75 psig All other selections are less than6 psig pressure drop
Boiler HP
OPERATINGPRESSURE
PSIG125 150 200 250 300 350 400 500 600 700 800
15 8 8 10 10 12 12 12 12 12 12 12
30 6 6 8 8 8 10 10 10 12 12 12
40 6 6 6 8 8 8 10 10 10 12 12
50 6 6 6 6 8 8 8 10 10 10 12
75 4 4 6 6 6 8 8 8 8 10 10
100 4 4 6 6 6 6 6 8 8 8 10
125 4 4 4 6 6 6 6 8 8 8 8
150 3 3 4 4 6 6 6 6 6 8 8
200 25 3 4 4 4 4 6 6 6 6 6
250 25 3 3 4 4 4 4 6 6 6 6
NOTES1 Steam nozzle sizes given in inches2 Recommended steam nozzle sizes based on 4000 to 5000 fpm steam velocity3 All standard steam nozzle sizes for 150 psig design pressure or greater are the sameas 125 psig operating pressure on the above table To increase or decrease the standardsize request the change with your local Cleaver-Brooks authorized representative4 Shaded area denotes special surge load baffles must be installed to avoid possible wa-ter carry-over5 For incremental operating pressures see Table I3-1 Steam Systems Fundamentals
Table A1-28 Recommended Steam Nozzle Size (for
4000 to 5000 fpm nozzle velocity)
Table A1-29 Recommended Non-Return Valve Size
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Model CBLE 125-800 HP Boilers
42
1 Shortest boiler room length (Dwg A) is obtained by allowing for possible future tube replacement (from front or rearof boiler) through a window or doorway Allowance is only made for minimum door swing at each end of the boilerThis arrangement provides sufficient aisle space at the front of the boiler but a ldquotightrdquo space condition at the rear
If space permits approximately 15 additional feet should be allowed at the rear for additional aisle and workingspace
2 Next shortest boiler room length (Dwg B) is obtained by allowing for possible future tube replacement from thefront of the boiler Allowance is only made for minimum door swing at the rear
If space permits approximately 15 additional feet should be allowed at the rear for additional aisle and workingspace
3 A slightly longer boiler room (Dwg C) is obtained by allowing for possible future tube replacement from the rear ofthe boiler Allowance for door swing at the front provides sufficient aisle and working space at the front
Figure A1-21 Boiler Room Length (Typical Layouts)
BOILER HP 125-200 250-350 400-800
Dimension A 82 93 102
Dimension B 115 141 171
NOTES1 Recommended Minimum Distance Between Boiler and Wall Dimen-
sion ldquoArdquo allows for a ldquoclearrdquo 42 aisle between the water col-umn on the boiler and the wall If space permits this aisle
should be widened 2 Recommended Minimum Distance Between BoilersDimension ldquoBrdquo between boilers allows for a ldquoclearrdquo aisle of42 - 125 -200 hp48 - 250-350 hp60 - 400-800 hpIf space permits this aisle should be widened
Figure A1-22 Boiler Room Width (Typical Layout)
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Model CBLE 125-800 HP Boilers
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Model CBLE 125-800 HP Boilers
4
FEATURES AND BENEFITS
The Cleaver-Brooks Model CB Boiler - the premium firetube on the market today -includes the four-pass dryback design five square feet of heating surface per boilerhorsepower and maximum boiler efficiency In addition to the features of the ModelCB Boiler the Low Emission Option provides the following
Integral Front Head Designbull Single-piece front door
bull Fan cassette assembly for easy access to fan and motor
bull Guaranteed low nitrogen oxide (NOx) performance
bull Enhanced burner performance
bull Improved flame stability and combustion control
bull Intimate mixing of air and fuel assures minimum CO levels at low NOx levels
True BoilerBurnerLow NOx Package
bull ULULC approved package
bull Assures highest fuel-to-steam efficiencybull Eliminates the need for field installation of burner controls or NOx equipment
bull Single point positioning of fuel and air ensures ease of startup and providesreliable operation
PRODUCT OFFERING
The Low Emission Option currently is available on
bull 125 - 800 hp Model CB Firetube Dryback Boilers
bull High-pressure and low-pressure steam and hot water designs
bull Natural Gas No 2 oil or combination fired
bull Retrofit capability
Standard Equipment bull Model CB Firetube Boiler
bull New integral front head with internal low NOx system
bull Enhanced burner design
Available Options For option details contact your local Cleaver-Brooks authorized representative
bull Full line of Model CB Firetube options
bull Additional NOx reduction packages
DIMENSIONS AND RATINGS
The Model CB-LE dimensions and ratings are provided inTable A1-1 through TableA1-8 and in Figure A1-1 through Figure A1-6
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Model CBLE 125-800 HP Boilers
5
BOILER HP 125 150 200 250 300 350 400 500 600 700 800
POWER REQUIREMENTS - SEA LEVEL TO 700 FT 60 HZ
Rated Cap Btu Output (1000 Btuhr) 4184 5021 6695 8369 10043 11716 13390 16738 20085 23433 26780
APPROXIMATE FUEL CONSUMPTON AT RATED CAPACITY
Light Oil (gph)A 364 437 583 729 875 1021 1166 1458 1750 2041 2333
Natural Gas (cfh) MBtu 5103 6123 8165 10206 12247 14288 16329 20412 24494 28576 32659
Gas (Thermhr) 510 612 816 1021 1225 1429 1633 2041 2449 2858 3266
POWER REQUIREMENTS - SEA LEVEL TO 700 FT 60 HZ
Blower Motor hp Refer to Tables A1-9 and A1-10
Oil Pump Motor hp No 2 Oil 12 12 12 12 34 34 34 34 34 1 1
Air Compressor Motor hp (Oil firing Only) 3 3 3 5 5 5 7-12 7-12 7-12 7-12 7-12
NOTES
A Based on 140000 Btugal
Table A1-2 Model CB-LE Hot Water Boiler Ratings
BOILER HP 125 150 200 250 300 350 400 500 600 700 800
RATINGS SEA LEVEL TO 700 FT
Rated Steam Cap (lbshr from and 212
degF)
4313 5175 6900 8625 10350 12075 13800 17250 20700 24150 27600
Btu Output (1000 Btuhr) 4184 5021 6695 8369 10043 11716 13390 16738 20085 23433 26780
APPROXIMATE FUEL CONSUMPTION AT RATED CAPACITY
Light Oil (gph)A 364 437 583 729 875 1021 1166 1458 1750 2041 2333
Natural Gas (cfh) MBtu 5103 6123 8165 10206 12247 14288 16329 20412 24494 28576 32659
Gas (Thermhr) 510 612 816 1021 1225 1429 1633 2041 2449 2858 3266
POWER REQUIREMENTS - SEA LEVEL TO 700 FT 60 HZ
Blower Motor hp Refer to Tables A1-9 and A1-10
Oil Pump Motor hp No 2 Oil 12 12 12 12 34 34 34 34 34 1 1
Air Compressor Motor hp (Oil firing Only) 3 3 3 5 5 5 7-12 7-12 7-12 7-12 7-12
NOTES
A Based on 140000 Btugal
Table A1-1 Model CB-LE Steam Boiler Ratings
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Model CBLE 125-800 HP Boilers
6
A
B
C D
E
F
G
H I J
KL
M Y
N
O
P Q
R S
T
UV
W
X
Y AA
BB CC DD EE
GG
HH
HH
JJ
GG
GG
JJ
KK
FF FARSIDE
Table A1-3 Model CB-LE Steam Boiler Dimensions
60rdquo (15 - 150 psig Design Pressure) - Sheet 1 of 2
(measurements shown in inches)
Description DIMBoiler HP
125 150 200
LENGTHS
Length Overall A 173 1965 2285
Shell B 125 149 180
Front Head Extension C 28 28 29
Front Ring Flange to Nozzle - 15 D 88 90 96
Front Ring Flange to Nozzle - 150 D 84 84 96
Rear Head Extension E 195 195 195
Front Ring Flange to Panel G 17 17 17Ring Flange to Base H 05 05 05
Base Frame I 112 136 167
Rear Flange Ring to Base J 125 125 125
HEIGHTS
Ht Overall K 87 87 87
Base to Vent Outlet L 87 87 87
Base to Boiler Centerline M 46 46 46
Base to Gas Train N 6 85 85
Figure A1-1 CB-LE Steam - 125-200 HP
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Model CBLE 125-800 HP Boilers
7
Description DIM Boiler HP
125 150 200
HEIGHTS (continued)
Base to Panel Top T 75 75 77Base to Panel Bottom U 15 15 17
Height of Base V 12 12 12
Base to Steam Nozzle Y 8238 8238 8238
WIDTHS
Width Overall O 8988 89875 905
Center to ALWCO P 3875 3875 3875
Center to Outside Control Panel Q 485 485 485
Center to Lagging R 33 33 33
Center to WC S 445 45 45
Base Inside W 445 445 445
Base Outside X 525 525 525
Boiler ID F 60 60 60
CONNECTIONSElectric - Main Power Supply AA 460 3 60 460 3 60 460 3 60
Surface Blowoff (with collector pipe) BB 1 1 1
Steam Outlet 15 (150 Flange) CC 8 8 10
Steam Outlet 150 (300 Flange) CC 4 4 4
Chemical Feed FF 1 1 1
Feed Water (2) GG 15 15 2
Blowdown (2) 150 HH 15 15 15
Drain (2) 15 HH 15 15 2
Water Column Blowdown JJ 075 075 075
Gauge Glass Blowdown KK 025 025 025
VENT STACK
Diameter (OD) (flgd connection) 16 16 16
CLEARANCES
Rear Door Swing (Davited) 32 32 32
Front Door Swing 67 67 67
Tube Removal Rear 115 139 170
Tube Removal Front 103 127 158
MINIMUM BOILER ROOM LENGTH ALLOWING FOR DOOR SWING AND TUBE REMOVAL
From Rear of Boiler 307 355 417
From Front of Boiler 260 308 370
Through Window or Doorway 224 248 279
WEIGHT IN LBS
Normal Water Capacity 5750 7250 8625
Approx Ship Wt 15 psig 11300 12600 14600
Approx Ship Wt 150 psig 12400 13500 15600
Approx Ship Wt 200 psig 13000 14200 16400
Table A1-3 Model CB-LE Steam Boiler Dimensions 60rdquo (15 - 150 psig Design Pressure) - Sheet 2 of 2
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Model CBLE 125-800 HP Boilers
8
A
BC
D
E
F
G
H I J
K
L
M
N
O
P QR S
T
UV
W
X
Y
AA
BBCC
DD
EE
FF
GG
HH
HH
JJ
JJ
KK
GG
GG
Y
FARSIDE
(measurements shown in inches)
Description DIM
Boiler HP
250 300 350
LENGTHS
Length Overall A 1915 220 250
Shell B 144 171 201
Front Head Extension C 235 25 25
Front Ring Flange to Nozzle - 15 D 90 98 112
Front Ring Flange to Nozzle - 150 D 88 98 112
Rear Head Extension E 24 24 24
Front Ring Flange to Panel G 17 23 23
Ring Flange to Base H 05 05 05
Base Frame I 131 158 188
Rear Flange Ring to Base J 125 125 125
HEIGHTS
Ht Overall K 115 115 115
Base to Vent Outlet L 106 106 106Base to Boiler Centerline M 56 56 56
Base to Gas Train N 10 10 10
Base to Panel Top T 77 77 77
Base to Panel Bottom U 17 17 17
Height of Base V 12 12 12
Base to Steam Nozzle Y 10150 10150 10150
Table A1-4 Model CB-LE Steam Boiler Dimensions
78rdquo (15 - 150 psig Design Pressure) - Sheet 1 of 2
Figure A1-2 CB-LE Steam - 250-350 HP
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httpslidepdfcomreaderfullcble-boiler-book 943
Model CBLE 125-800 HP Boilers
9
Description DIM Boiler HP
250 300 350
WIDTHS
Width Overall O 1065 1065 10875Center to ALWCO P 485 485 485
Center to Outside Control Panel Q 58 58 58
Center to Lagging R 42 42 42
Center to WC S 5375 5375 5375
Base Inside W 56 56 56
Base Outside X 64 64 64
Boiler ID F 78 78 78
CONNECTIONS
Electric - Main Power Supply AA 460 3 60 460 3 60 460 3 60
Surface Blowoff (with collector pipe) BB 1 1 1
Steam Outlet 15 (150 Flange) CC 12 12 12
Steam Outlet 150 (300 Flange) CC 6 6 6
Chemical Feed FF 1 1 1
Feed Water (2) GG 2 2 25Blowdown (2) 150 HH 15 15 15
Drain (2) 15 HH 2 2 2
Water Column Blowdown JJ 075 075 075
Gauge Glass Blowdown KK 025 025 025
VENT STACK
Diameter (OD) (flgd connection) 20 20 20
CLEARANCES
Rear Door Swing 43 43 43
Front Door Swing 89 89 89
Tube Removal Rear 131 157 187
Tube Removal Front 116 142 172
MINIMUM BOILER ROOM LENGTH ALLOWING FOR DOOR SWING AND TUBE REMOVAL
From Rear of Boiler 364 417 477
From Front of Boiler 303 356 416
Through Window or Doorway 275 302 332
WEIGHT IN LBS
Normal Water Capacity 10670 13000 15465
Approx Ship Wt 15 psig 21500 23600 26800
Approx Ship Wt 150 psig 22800 25200 27800
Approx Ship Wt 200 psig 24600 27200 29300
Table A1-4 Model CB-LE Steam Boiler Dimensions 78rdquo (15 - 150 psig Design Pressure) - Sheet 2 of 2
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
10
A
BC
D
E
F
G
HI J
K
AA
BB CC
DD
EE
FF
JJ
GG
HH HH
L
M
N
O
P Q
R S
T
UV
W
X
Y
JJ
JJ
KK
GGGG
Y
FARSIDE
Table A1-5 Model CB-LE Steam Boiler Dimensions
96rdquo (15 - 150 psig Design Pressure) - Sheet 1 of 2
(measurements shown in inches)
Description DIMBoiler HP
400 500 600 700 800
LENGTHS
Length Overall A 20575 22775 25975 29875 29875
Shell B 14675 1675 19975 23275 23275
Front Head Extension C 27 28 28 34 34
Front Ring Flange to Nozzle - 15 D 98 101 96 112 112
Front Ring Flange to Nozzle - 150 D 96 100 96 112 112
Rear Head Extension E 32 32 32 32 32
Front Ring Flange to Panel G 26 26 26 26 26
Ring Flange to Base H 05 05 05 05 05
Base Frame I 13375 15475 18675 21975 21975
Rear Flange Ring to Base J 125 125 125 125 125
Figure A1-3 CB-LE Steam - 400-800 HP
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Model CBLE 125-800 HP Boilers
11
Description DIM Boiler HP
400 500 600 700 800
HEIGHTS
Ht Overall K 134 134 134 134 134Base to Vent Outlet L 126 126 126 126 126
Base to Boiler Centerline M 67 67 67 67 67
Base to Gas Train N 12 12 12 12 12
Base to Panel Top T 75 75 75 75 75
Base to Panel Bottom U 15 15 15 15 15
Height of Base V 12 12 12 12 12
Base to Steam Nozzle Y 1215 1235 1215 121 121
WIDTHS
Width Overall O 124 12425 124 124 124
Center to ALWCO P 575 575 575 575 575
Center to Outside Control Panel Q 665 665 665 665 665
Center to Lagging R 51 51 51 51 51
Center to WC S 63 63 63 63 63
Base Inside W 5888 5888 5888 5888 5888
Base Outside X 7188 7188 7188 7188 7188
Boiler ID F 96 96 96 96 96
CONNECTIONS
Electric - Main Power Supply AA 460 3 60 460 3 60 460 3 60 460 3 60 460 3 60
Surface Blowoff (with collector pipe) BB 1 1 1 1 1
Steam Outlet 15 (150 Flange) CC 12 12 12 12 12
Steam Outlet 150 (300 Flange) CC 6 8 8 8 8
Chemical Feed FF 1 1 1 1 1
Feed Water (2) GG 25 25 25 25 25
BlowdownDrain (2) HH 2 2 2 2 2
Water Column Blowdown JJ 075 075 075 075 075
Gauge Glass Blowdown KK 025 025 025 025 025
VENT STACK
Diameter (OD) (flgd connection) 24 24 24 24 24
CLEARANCES
Rear Door Swing 53 53 53 53 53Front Door Swing 108 108 108 108 108Tube Removal Rear 131 152 184 217 217
Tube Removal Front 114 135 167 200 200
MINIMUM BOILER ROOM LENGTH ALLOWING FOR DOOR SWING AND TUBE REMOVAL
From Rear of Boiler 386 428 492 558 558
From Front of Boiler 314 356 420 486 486
Through Window or Doorway 308 329 361 394 394
WEIGHT IN LBS
Normal Water Capacity 14810 15950 19270 23000 23000
Approx Ship Wt 15 psig 33500 37110 42300 49500 49600 Approx Ship Wt 150 psig 36570 39970 45025 52050 52150
Approx Ship Wt 200 psig 39680 43580 49400 57315 57415
Table A1-5 Model CB-LE Steam Boiler Dimensions
96rdquo (15 - 150 psig Design Pressure) - Sheet 2 of 2
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
12
BOILER HP DIM 125 150 200
LENGTHS
Overall (60 ppm System) A 171-12 196-12 228-12
Shell B 125 149 180
Base Frame C 112 136 167
Front Head Extension (60 ppm System) D 27 28 29
Rear Head Extension E 19-12 19-12 19-12
Front Ring Flange to Outlet HH 114 136 167
Front Ring Flange to Return H 89 102 131
Ring Flange to Base F 12 12 12
Over Tubesheets V 113 137 168
Shell Extension P 12 12 12
Rear Flange Ring to Base G 12-12 12-12 12-12
Table A1-6 Model CB-LE Hot Water Boiler Dimensions
60rdquo (30 and 125 psig Design Pressure) - Sheet 1 of 2
Figure A1-4 CB-LE Hot Water - 125-200 HP
R
F G
WW
P
BB
D E
GG
Q
Z
Y T U
RR - RF - RD
X
HH
A
B
HI
L K
OO O
KK
M
N
EE
FF
DD
V
J
C
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 1343
Model CBLE 125-800 HP Boilers
13
BOILER HP DIM 125 150 200
WIDTHS
Overall I 75-12 75-12 75-12
ID Boiler J 60 60 60
Center to Entrance Box K 42-12 42-12 42-12
Center to Outside Hinge KK 35 35 35
Center to Lagging L 33 33 33
Base Outside M 52-12 52-12 52-12
Base Inside N 44-12 44-12 44-12
HEIGHTS
Overall OO 87 87 87
Base to Vent Outlet O 87 87 87
Base to Return and Outlet X 82-38 82-38 82-38
Height of Base Q 12 12 12
Base to Bottom of Boiler R 16 16 16
BOILER CONNECTION
Auxiliary Connection Z 1 1 1
Water Return Flange T 6A 6A 6A
Water Outlet Flange (2 Dip Tube Included) U 6A 6A 6A
Drain Front and Rear W 1-12 1-12 2
Air Vent Y 1-12 1-12 1-12
VENT STACK
Diameter (flgd connection) BB 16 16 16
MINIMUM CLEARANCES
Rear Door Swing DD 32 32 32
Front Door Swing EE 67 67 67
Tube Removal Rear FF 115 139 170Tube Removal Front GG 103 127 158
MINIMUM BOILER ROOM LENGTH ALLOWING FOR DOOR SWING AND TUBE REMOVAL FROM
Rear of Boiler RR 307 355 417
Front of Boiler RF 260 308 370
Thru Window or Doorway RD 224 248 279
WEIGHT IN LBS
Water Capacity Flooded 7670 9295 11130
Approx Ship Wgt ndash 30 psigApprox Ship Wgt ndash 125 psig
1140011800
1250012900
1450014900
NOTES All connections are threaded unless indicatedA ANSI 150 psig flange
Table A1-6 Model CB-LE Hot Water Boiler Dimensions
60rdquo (30 and 125 psig Design Pressure) - Sheet 2 of 2
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 1443
Model CBLE 125-800 HP Boilers
14
BOILER HP DIM 250 300 350
LENGTHS
Overall (60 ppm System) A 191-12 220 252
Shell B 144 171 201
Base Frame C 131 158 188
Front Head Extension (60 ppm System) D 23-12 25 27
Rear Head Extension E 24 24 24
Front Ring Flange to Return H 103-12 130 160
Front Ring Flange to Outlet HH 131 158 188
Ring Flange to Base F 12 12 12
Over Tubesheets V 129 156 186
Shell Extension P 15 15 15
Rear Flange Ring to Base G 12-12 12-12 12-12
Table A1-7 Model CB-LE Hot Water Boiler Dimensions78rdquo (30 and 125 psig Design Pressure) - Sheet 1 of 2
Figure A1-5 CB-LE Hot Water 250-350 HP
s k o o r B r e v a
e l C
R
F G
WW
P
BB
D E
GG
Q
Z
Y T U
RR - RF - RD
X
HH
A
B
HI
L K
OOO
KK
M
N
EE
FF
DD
V
J
C
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
15
BOILER HP DIM 250 300 350
WIDTHS
Overall I 93 93 93
ID Boiler J 78 78 78
Center to Entrance Box K 51 51 51
Center to Outside Hinge KK 51 51 51
Center to Lagging L 42 42 42
Base Outside M 64 64 64
Base Inside N 52 52 52
HEIGHTS
Overall OO 115 115 115
Base to Vent Outlet O 106 106 106
Base to Return and Outlet X 101-12 101-12 101-12
Height of Base Q 10 10 10
Base to Bottom of Boiler R 17 17 17
BOILER CONNECTION
Auxiliary Connection Z 1-14 1-14 1-14
Water Return Flange (2 Dip Tube included) T 8A 8A 8A
Water Outlet Flange (2 Dip Tube Included) U 8A 8A 8A
Air Vent Y 1-12 1-12 1-12
Drain Front and Rear W 2 2 2
VENT STACK
Diameter (flgd connection) BB 20 20 20
MINIMUM CLEARANCES
Rear Door Swing DD 43 43 43
Front Door Swing EE 89 89 89
Tube Removal Rear FF 131 157 187
Tube Removal Front GG 116 142 172
MINIMUM BOILER ROOM LENGTH ALLOWING FOR DOOR SWING AND TUBE REMOVAL FROM
Rear of Boiler RR 364 417 477
Front of Boiler RF 303 356 416
Thru Window or Doorway RD 275 302 332
WEIGHT IN LBS
Water Capacity Flooded 13880 16840 20090
Approx Ship Wgt ndash 30 psigApprox Ship Wgt ndash 125 psig
2140022200
2350024300
2670027500
NOTES All connections are threaded unless indictedA ANSI 150 psig flange
Table A1-7 Model CB-LE Hot Water Boiler Dimensions
78rdquo (30 and 125 psig Design Pressure) - Sheet 2 of 2
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
16
BOILER HP DIM 400 500 600 700 800
LENGTHS
Overall (60 ppm System) A 206 228 262 299 300
Shell B 147 168 200 233 233
Base Frame C 134 155 187 220 220
Front Head Extension (60 ppm System) D 27 28 30 34 35
Rear Head Extension E 32 32 32 32 32
Shell Ring Flange to Base F 12 12 12 12 12
Rear Ring Flange to Base G 12-12 12-12 12-12 12-12 12-12
Shell Flange to Outlet HH 139-12 156-12 182-12 216-12 216-12
Shell Flange to Return H 107 125 151-12 185 185
Over Tubesheets V 130 151 183 216 216
Shell Extension P 17 17 17 17 17
Table A1-8 Model CB-LE Hot Water Boiler Dimensions96rdquo (30 and 125 psig Design Pressure) - Sheet 1 of 2
Figure A1-6 CB-LE Hot Water 400-800 HP
s k o o r B r e v a
e l C
R
F G
WW
P
BB
D E
GG
Q
Z
Y T U
RR - RF - RD
X
HH
A
B
HI
L K
OOO
KK
M
N
EE
FF
DD
V
J
C
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
17
WIDTHS
Overall I 113 113 113 113 115
ID Boiler J 96 96 96 96 96
Center to Entrance Box K 62 62 62 62 64
Center to Outside Hinge KK 62 62 62 62 62
Center to Lagging L 51 51 51 51 51
Base Outside M 72 72 72 72 72
Base Inside N 56 56 56 56 56
HEIGHTS
Overall OO 134 134 134 134 134
Base to Vent Outlet O 126 126 126 126 126
Height of Base Q 12 12 12 12 12
Base to Bottom of Boiler R 19 19 19 19 19
Base to Return and Outlet X 121-916 121-916 121-916 121-916 121-916
BOILER CONNECTIONS
Auxiliary Connection Z 1-14 1-14 1-14 1-14 1-14
Drain Front and Rear W 2 2 2 2 2
Water Return T 10A 10A 12A 12A 12A
Water Outlet (2rdquo Dip Tube Included) U 10A 10A 12A 12A 12A
Air Vent Y 2 2 2 2 2
VENT STACK
Diameter (Flanged Connection) BB 24 24 24 24 24
MINIMUM CLEARANCES
Rear Door Swing DD 53 53 53 53 53
Front Door Swing EE 108 108 108 108 108
Tube Removal Rear FF 131 152 184 217 217
Tube Removal Front GG 114 135 167 200 200
MINIMUM BOILER ROOM LENGTH ALLOWING FOR DOOR SWING AND TUBE REMOVAL FROM
Rear of Boiler RR 386 428 492 558 558
Front of Boiler RF 314 356 420 486 486
Thru Window or Doorway RD 308 329 361 394 394
WEIGHT IN LBS
Normal Water Capacity 20015 23300 28260 33360 33360
Approx Ship Wgt ndash 30 psig
Approx Ship Wgt ndash 125 psig
33300
37270
36900
40780
42150
46005
49650
53300
49750
53400
NOTES All connections are threaded unless indicated
A ANSI 150 psig flange
BOILER HP DIM 400 500 600 700 800
Table A1-8 Model CB-LE Hot Water Boiler Dimensions
96rdquo (30 and 125 psig Design Pressure) - Sheet 2 of 2
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
18
BOILER HP
MOTOR HP
60PPM
30PPM
25PPM
20PPM
125 5 10 5 10
150 75 10 10 10
200 15 15 20 NA
250 75 10 15 15
300 10 15 20 30
350 15 25 40 40
400 10 15 20 20
500 15 20 25 30
600 25 30 50 60
700 30 50 75 75
800 50 75 NA NA
NOTES For elevations above 700rsquo - contact your local
Cleaver-Brooks authorized representative
Table A1-9 Model CB-LE Blower Motor Selection -
Operating Pressures 150 psig and Less and All Hot
Water Boilers
BOILER HP
MOTOR HP
60
PPM
30
PPM
25
PPM
20
PPM
125 5 10 10 10
150 10 10 10 15
200 15 20 20 NA
250 75 10 15 20
300 10 20 30 40
350 20 30 40 50
400 10 15 20 25
500 20 25 30 40
600 25 40 60 60
700 40 60 75B 75C
800 60 75A NA NA
NOTES For elevation above 700rsquo - contact your local
Cleaver-Brooks authorized representative
A Downrate to 770 hp
B Downrate to 675 hp
C Downrate to 660 hp
Table A1-10 Model CB-LE Blower Motor Selection -
Operating Pressures Greater than 150 psig (Steam
Boilers)
09-09
Table A1-11 Blower Motor Selection CB-LE NTI BoilersTable A1-12 Turndown Guarantee for CB-LE NTI
Boilers - Natural Gas amp 2 Oil
Boiler SizeTurndown
9 ppm 15 ppm
125 41 41
150 41 51
200 41 51
250 51 51
300 51 51
350 51 51
400 51 61
500 51 61
600 61 61
700 71 71
800 71 71
800 HP to be derated to 720 HP for 9 ppm and 750 HP
for 15 ppm
Altitude 700 ft and less - Design Pressure 150 psi and less
800 HP - to be de-rated to 720 HP for 9 ppm and to 750 HP for 15 ppm
mpp9mpp51Nominal
Boiler Size Blower Motor HP Blower Motor HP
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Model CBLE 125-800 HP Boilers
19
BOILER HPFUEL
SERIES
HOT WATER STEAM
30 PSIG 125 PSIG 15 PSIG 150 PSIG 200 PSIG
125100 11200 11600 11300 12000 12600200 11400 11800 11500 12400 13000
700 11300 11700 11400 12300 12900
150
100 12300 12700 12400 13200 13900
200 12500 12900 12600 13500 14200
700 12300 12700 12400 13300 14000
200
100 14400 14800 14500 15500 16300
200 14500 14900 14600 15600 16400
700 14500 14900 14600 15600 16400
250
100 20700 21500 20800 22000 23800
200 21400 22200 21500 22800 24600
700 20900 21700 21000 22500 24300
300
100 23100 23900 23200 24800 26800
200 23500 24300 23600 25200 27200
700 23400 24200 23500 25000 27000
350
100 26200 27000 26300 27600 29100
200 26700 27500 26800 27800 29300
700 26400 27200 26500 27700 29200
400
100 33000 36970 33200 36270 39380
200 33300 37270 33500 36570 39680
700 33200 37170 33400 36470 39580
500
100 36600 40470 36810 39670 43480
200 36900 40780 37110 39970 43580
700 36800 40680 37010 39870 43280
600
100 41850 45905 42000 44725 49100
200 42150 46005 42300 45025 49400
700 42050 45915 42200 44925 49300
700800
100 49450 53000 49300 51850 57015
200 49750 53300 49600 52150 57315
700 49650 53200 49500 52050 57215
NOTES1 Weights shown are based on standard product offering for current listed boilers If units are of special design and construction actual weightwill be determined at time of shipment Shipment will then be made on shippers weight and count All weights are in US pounds
Table A1-13 Model CB-LE Boiler Weights
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 2043
Model CBLE 125-800 HP Boilers
20
VALVE
SETTING15 PSIG STEAM 100 PSIG STEAM 125 PSIG STEAM 150 PSIG STEAM 200 PSIG STEAM 250 PSIG STEAM 300 PSIG STEAM
BOILERHP
NO OF
VALVES-REQD
OUTLET
SIZE(IN)
NO OF
VALVES-REQD
OUTLET
SIZE(IN)
NO OF
VALVESREQD
OUTLET
SIZE(IN)
NO OF
VALVES-REQD
OUTLET
SIZE(IN)
NO OF
VALVES-REQD
OUTLET
SIZE(IN)
NO OF
VALVESREQD
OUTLET
SIZE(IN)
NO OF
VALVESREQD
OUTLET
SIZE(IN)
125 1 3 2 1-12 2(1) 1-12(1) 1-14
2(1) 1-12(1) 1-14
2(1) 1-14(1) 1
2 1 2 1
150 1 3 2(1) 2(1) 1-12
2 1-14 2(1) 1-12(1) 1-14
2(1) 1(1) 1-14
2 1 2 1
200 2 2-12 2 2 2 1-12 2 1-12 2(1) 1-12(1) 1-14
2 1-14 2(1) 1(1) 1-14
250 2(1) 2-12(1) 3
2(1) 2-12(1) 2
2(1)2(1)1-12
2(1) 2(1) 1-12
2(1)1-12(1)1-14
2(1) 1-12(1) 1-14
2 1-14
300 2 3 2(1) 2-12(1) 2
2 2 2(1) 2(1) 1-12
2 1-12 2(1)1-12(1)1-14
2(1) 1-12(1) 1-14
350 3(1) 2(2) 3
3(1) 2-12(2) 2
2(1)2(1)1-12
2 2 2(1) 1-12(1) 2
2 1-12 2(1) 1-12(1) 1-14
400 3(2) 3(1) 2-12
3(1) 2(2) 2-12
2(1)2(1)2-12
2(1) 2-12(1) 2
2(1) 1-12(1) 2
2(1) 2(1) 1-12
2 1-12
500 3 (3) 3 3 2-12 2 2-12 2(1) 2-12(1) 2
2(1) 2(1) 2-12
2(1) 2(1)1-12
2(1) 1-12(1) 2
600 4 3 4(3) 2-12(1) 2
3 2-12 2 2-12 2(1) 2(1) 2-12
2 2 2 2
700 5(3) 3(2) 2-12
5(3) 2-12(2) 2
3 2-12 3(2) 2-12(1) 2
2 2-12 2(1) 2(1) 2-12
2 2
800 5(3) 3(2) 2-12
5(3) 2-12(2) 2
4(3) 2-12(1) 2
3(2) 2-12(1) 2
2 2-12 2(1) 2(1) 2-12
2(1) 2(1) 2-12
NOTES Valve manufacturers are Kunkle Consolidated or Conbraco depending on availability This table revised 042012
Table A1-14 Steam Boiler Safety Valve Openings
VALVE
SETTING 30 PSIG HW 60 PSIG HW 100 PSIG HW 125 PSIG HW
BOILER HPNO OF
VALVESREQD
OUTLETSIZE(IN)
NO OFVALVESREQD
OUTLETSIZE(IN)
NO OFVALVESREQD
OUTLETSIZE(IN)
NO OFVALVESREQD
OUTLETSIZE(IN)
125 1 2-12 1 2 1 2 1 1-14
150 1 2-12 1 2-12 1 2 1 2
200 2(1) 2-12(1) 1-14
1 2-12 1 2 1 2
250 2 (1) 2(1) 2-12
1 2-12 1 2-12 1 2
300 2 2-12 2(1) 1(1) 2-12
1 2-12 1 2-12
350 3(2) 2-12(1) 1
2(1) 2-12(1) 2
1 2-12 1 2-12
400 3 (1) 2(2) 2-12 2 (1) 2(2) 2-12 2 (1) 1(1) 2-12 1 2-12
500 4 (1) 1(3) 2-12
2 2-12 2(1) 2-12(1) 1-14
2(1) 1(1) 2-12
600 4(3) 2-12(1) 2
3(1) 1-1(2) 2-12
2(1) 2(1) 2-12
2(1) 2-12(1) 1-14
700 amp 800 5 (1) 1(4) 2-12
3(1) 2(2) 2-12
2 2-12 2(1) 2-12(1) 2
NOTES Hot water relief valves are Kunkle 537
Table A1-15 Hot Water Boiler Relief Valve Openings
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
21
BOILER HP A B C D E F G X1 X2 X3
125 6 9 112 39-12 57-12 4 44-12 10 9-34 22-12
150 6 9 136 39-12 57-12 4 44-12 10 9-34 22-12
200 6 9 167 39-12 57-12 4 44-12 10 9-34 22-12
250 6 12 131 46 70 4 56 10 22 22-12
300 6 12 158 46 70 4 56 10 22 22-12
350 6 12 188 46 70 4 56 10 22 22-12
NOTE
All numbers in table are in inches
6-inch high mounting piers recommended for use beneath the boiler base frame The use of these piers provides increased inspection
accessibility to the piping beneath the boiler and added height for washing down the area beneath the boiler
Figure A1-7 Space Required to Open Rear Head on Model CB-LE Boilers Equipped with Davits
BOILER HPDIMENSIONS (INCHES)
A B C D E
CB-125 THRU CB-200 33 55 45 68 32
CB-250 THRU CB-350 42 69 58 86 43
CB-400 THRU CB-800 51 88 71 109 53
Figure A1-8 Model CB-LE Boiler Mounting Piers (60rdquo and 78rdquo)
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 2243
Model CBLE 125-800 HP Boilers
22
BOILER HP A B C D E F G
400 6 14 134 50 78 6-12 58-78
500 6 14 155 50 78 6-12 58-78
600 6 14 187 50 78 6-12 58-78
700-800 6 14 220 50 78 6-12 58-78
NOTE1 All numbers in table are in inches2 6-inch high mounting piers recommended for use beneath the boiler base frame The use of these piers provides in-
creased inspection accessibility to the piping beneath the boiler and added height for washing down the area beneaththe boiler
Figure A1-9 Model CB-LE Boiler Mounting Piers (96rdquo)
CBLE 250-350HP
CBLE 400-800HP
Motor HP Hole Number
75 1
15 1
25 2
40 3
Motor HP Hole Number
10 1
20 1
30 250 2
75 3
Figure A1-10 Front Davit Support
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
23
BOILERHP
VIEW
ALL DIMENSIONS IN INCHES
A B C D E
125 All B 80-14 29-34 70-12 10 3
150 All B 80-14 29-34 83-12 10 3
200 All B 80-14 29-34 114-12 10 3
250Steam B 99 36 72 10 3
Hot Water B 99 36 81 10 3
300
Steam B 99 36 99 10 3
Hot Water B 99 36 108 10 3
350Steam B 99 36 129 10 3
Hot Water B 99 36 138 10 3
400Steam B 119 35-34 78 11 3
Hot Water B 119 35-34 78 11 3
500Steam B 119 35-34 99 11 3
Hot Water B 119 35-34 99 11 3
600Steam B 119 35-34 131 11 3
Hot Water B 119 35-34 131 11 3
700 amp 800Steam B 119 35-34 164 11 3
Hot Water B 119 35-34 164 11 3
NOTE A B and C dimensions may vary by 12 inch
Figure A1-11 Lifting Lug Location Model CB-LE Boilers
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Model CBLE 125-800 HP Boilers
24
PERFORMANCE DATA
The Low Emission Option provides NOx reduction at current published andpredicted fuel-to-steam efficiencies
Specifying BoilerEfficiency
Cleaver-Brooks offers an industry leading fuel-to-steam boiler efficiency guaranteefor Model CB-LE Firetube Boilers The guarantee is based on the fuel-to-steam
efficiencies shown in the efficiency tables and the following conditions Theefficiency percent number is only meaningful if the specific conditions of theefficiency calculations are clearly stated in the specification (see Cleaver-Brookspublication CB-7768 for a detailed description of efficiency calculations)
When specifying the efficiencies in the tables be sure to include the specificguarantee conditions to maximize the effectiveness of your efficiency specification Ifyou have any questions regarding the efficiency specifications please contact yourlocal Cleaver-Brooks authorized representative
EfficiencySpecification
The boiler manufacturer shall guarantee that at the time of startup the boiler willachieve fuel-to-steam efficiency (as shown in Table A1-16 and Table A1-17) at100 firing rate (add efficiency guarantees at 25 50 and 75 of rating if
required) If the boiler(s) fail to achieve the corresponding guaranteed efficiency aspublished the boiler manufacturer will rebate to the ultimate boiler owner tenthousand dollars ($10000) for every full efficiency point (10) that the actualefficiency is below the guaranteed level
The specified boiler efficiency is based on the following conditions
1 Fuel specification used to determine boiler efficiency
bull Natural Gas
Carbon (wt) = 6998Hydrogen (wt) = 2231Sulfur (wt) = 00
Heating value Btulb = 21830bull No 2 Oil
Carbon (wt) = 858Hydrogen (wt) = 127Sulfur (wt) = 02Heating value Btulb = 19420
No 6 Oil
Carbon (wt) = 866Hydrogen (wt) = 109Sulfur (wt) = 209Heating value Btulb = 18830
2 Efficiencies are based on ambient air temperature of 80 degF relative humidity of30 and 15 excess air in the exhaust flue gas
3 Efficiencies are based on manufacturerrsquos published radiation and convectionlosses (For Cleaver-Brooks radiation and convection losses see BoilerEfficiency Facts Guide publication number CB-7767)
4 Any efficiency verification testing will be based on the stack loss method
For efficiencies and stack temperatures at operating pressures not listed followthese procedures
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Model CBLE 125-800 HP Boilers
25
When the operating steam pressure is between 10 psig and 125 psig interpolatethe values from the efficiency tables
When the operating steam pressure is above 125 psig estimated efficiency can becalculated as follows
Example
Boiler 350 hpFuel natural gas
Operating steam pressure 200 psig
Find the fuel-to-steam efficiency at 100 firing rate From Table A1-16 for a 350hp boiler operating at 100 firing rate and an operating steam pressure of 125psig the efficiency is 825
Using Figure A1-12 note that the stack temperature increases 36 degF at the higheroperating pressure To estimate boiler efficiency use this rule of thumb For every40 degF increase in stack temperature efficiency decreases by 1 Since the stacktemperature rise is 36 degF the decrease in the boiler efficiency at 200 psig operatingpressure is calculated as follows 3640 =9 Therefore the boiler efficiency at200 psig operating pressure is 825 -9 = 816
Emissions The emission data included in this section consists of typical emission levels forModel CB boilers equipped with 60 30 25 and 20 ppm LE Options when firingnatural gas and No 2 oil
Notice
The data in Table A1-18 and Table A1-19 represent typical emission levels only
Guaranteed emission levels are available from your local Cleaver-Brooks authorized
representative
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Model CBLE 125-800 HP Boilers
26
BOILER
HP
OPERATING PRESSURE = 10 psig OPERATING PRESSURE = 125 psig
OF LOAD OF LOAD
25 50 75 100 25 50 75 100
125 833 836 834 832 804 809 810 810
150 844 846 845 843 815 820 820 821
200 850 853 851 849 822 827 827 827
250 850 847 840 833 820 820 816 813
300 853 853 846 839 826 827 822 819
350 853 857 852 845 826 832 828 825
400 845 847 846 844 818 822 824 822
500 855 857 855 852 828 832 833 831
600 857 860 858 856 829 835 836 835
700 857 862 860 857 830 836 836 836
800 858 861 859 856 831 836 837 835
Table A1-16 Predicted Fuel-to-Steam Efficiencies - Natural Gas
Figure A1-12 Predicted Stack Temperature Increase for Pressure Greater Than 125 psig
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Model CBLE 125-800 HP Boilers
27
Table A1-18 CB-LE Boilers - Natural Gas Emission Levels
POLLUTANT
ESTIMATED LEVEL
60 ppm 30 ppm 25 ppm 20 ppm 15 ppm 9 ppm
CO ppmA
lbMMBtu
50150B
004011
50150B
004011
50150B
004011
50150B
004011
50
004
50
004
NOx ppmA
lbMMBtu
60
007
30
0035
25
003
20
0024
15
0018
9
0011
SOx ppmA
lbMMBtu
1
0001
1
0001
1
0001
1
0001
1
0001
1
0001
HCVOC5 ppmA
lbMMBtu
10
0004
10
0004
10
0004
10
0004
10
0004
10
0004
PM ppmA
lbMMBtu
-
001
-
001
-
001
-
001
-
001
-
001
A ppm levels are given on a dry volume basis and corrected to 3 oxygen (15 excess air)
B CO emission for 60 30 25 amp 20 ppm system is 50 ppm (004 lbMMBtu) when boiler is operating above 50 of rated capacity
CO emission is 150 ppm (011 lbMMBtu) when boiler is operating below 50 of rated capacity
Table A1-17 Predicted Fuel-to-Steam Efficiencies - No 2 Oil
BOILER
HP
OPERATING PRESSURE = 10 psig OPERATING PRESSURE = 125 psig
OF LOAD OF LOAD
25 50 75 100 25 50 75 100
125 867 869 867 866 837 842 843 843
150 878 880 878 876 848 853 853 854
200 884 887 884 882 856 860 860 860
250 883 881 874 867 853 853 849 847
300 886 887 880 873 859 860 855 852
350 886 890 885 878 859 866 861 858
400 879 881 879 876 851 855 856 855
500 889 890 889 886 861 865 866 864
600 890 894 892 890 862 868 869 868
700 891 895 893 891 863 869 870 869
800 892 895 893 890 864 869 870 868
Table A1-19 CB-LE Boilers - No 2 Oil Emission Levels
POLLUTANTESTIMATED LEVEL
60 ppm LE Option 30 25 20 ppm LE Option 15 ppm 9 ppm
CO ppmA
lbMMBtu
50
0039
50
0039
50
0039
50
0039
NOx ppmA
lbMMBtu140
018690
012085
011370
0093
SOx ppmA
lbMMBtu
278
052
278
052
278
052
278
052
HCVOCs ppmA
lbMMBtu
4
0002
4
0002
4
0002
4
0002
PM ppmA
lbMMBtu
-
0025
-
0025
-
0025
-
0025
A ppm levels are given on a dry volume basis and corrected to 3 oxygen (15 excess air)
BASED ON THE FOLLOWING CONSTITUENT LEVELS
Fuel-bound Nitrogen content = 0015 by weight
Sulfur content = 05 by weight
Ash content = 001 by weight
09-09
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28
ENGINEERING DATA
Sound Level Table A1-20 gives a summary of predicted sound pressure levels for Model CBboilers with 30 ppm LE Options Contact your local Cleaver-Brooks authorizedrepresentative for sound levels or other LE Options
Units - The units for the sound level tables are dbA (decibels measured on the A-weighted scale) in reference to 00002 microbars (20 micro-Newtons per square
meter) Their reference are standardly used in specifying and reporting soundpressure levels on industrial equipment
Test Method - The sound pressure levels in the above tables were obtained fromtests in accordance with the ldquoABMA Test Code for the Measurement of Sound fromPackaged Boilersrdquo In accordance with this code the sound pressure levels reportedwere measured on the boiler centerline 4-12 feet vertically above the bottom of thebase rails and 3 feet horizontally in front of the end of the blower motor or frontsurface of the electrical cabinet
Sound Level Meter - The sound level meter used complies with ANSI S14 Type 1(Precision) The readings are taken with the meter set for slow response andcorrected for background levels
Sound Pressure - The large size boilers the need for auxiliary equipment and thenecessary interconnecting piping make it impractical (and sometimes impossible) toprovide a boiler testing environment which is suitable for taking the data needed todevelop Sound Pressure Power levels
Typical Values - Sound pressure levels (dbA) for the same boiler will vary betweenboiler rooms Sound levels will vary with motor type NOx levels and altitudes Inaddition variations will occur between different people using different sound meterson the same boiler And finally no two boilers can be expected to give precisely thesame sound levels For these reasons we can only predict but not guarantee soundlevels (dbA)
BOILER HP 125 150 200 250 300 350 400 500 600 700 800
HFO dbA 84 84 84 83 84 85 84 85 85 88 90
LFO dbA 82 82 83 81 82 83 82 83 83 84 89
HFG dbA 82 82 83 82 83 84 83 83 85 87 90
LFG dbA 81 81 82 81 82 83 81 81 82 84 88
NOTES1 Sound pressure levels measured on boilers operating in various locations and ex-
pressed in dbA are as shown2 Based on standard altitude fans and fan motors 60 Hz3 Contact your local Cleaver-Brooks authorized representative for sound levels of 60 25or 20 ppm LE Options
ABBREVIATIONS
HF = High Fire LF = Low Fire O = Oil G = Gas
Table A1-20 Model CBLE Predicted Sound Levels 30 ppm NOx Systemss
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Model CBLE 125-800 HP Boilers
29
Gas-Fired Burners Table A1-21 shows gas pressure with standard over- and undersized gas trains
Table A1-22 shows minimum required gas pressure altitude conversion
Figure A1-13 shows standard gas train sizes and locations for Model CB FiretubeBoilers
Figure A1-14 shows typical gas train piping layouts for multiple boiler applications
Figure A1-15 shows standard gas train components
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Model CBLE 125-800 HP Boilers
30
Table A1-21 Standard Undersize and Oversize Gas Trains
CBLE
BOILER HP GAS TRAINSIZE
UPSTREAMVALVE
DOWNSTREAMVALVE
EMISSIONS LEVEL 09 ppm 15 ppm 20 ppm 30 ppm 60 ppm UC
125 HP 15 in BB BB 33 - 49 psi 33 - 49 psi 08 - 50 psi 07 - 50 psi 07 - 50 psi 07 - 50 ps
125 HP 15 in PC PC 34 - 50 psi 34 - 50 psi 09 - 50 psi 08 - 50 psi 08 - 50 psi 08 - 50 ps
125 HP 20 in BB BB 31 - 33 psi 31 - 33 psi 06 - 08 psi 06 - 07 psi 05 - 07 psi 05 - 07 ps
125 HP 20 in PC PC 31 - 34 psi 31 - 34 psi 06 - 09 psi 06 - 08 psi 06 - 08 psi 05 - 08 ps
125 HP 25 in PC PC 30 - 31 psi 30 - 31 psi 04 - 06 psi 04 - 06 psi 04 - 05 psi 04 - 05 ps
125 HP 30 in PC PC 29 - 30 psi 29 - 30 psi 04 - 04 psi 04 - 04 psi 04 - 04 psi 03 - 04 ps
125 HP 40 in PC PC 29 - 29 psi 29 - 29 psi 04 - 04 psi 03 - 04 psi 03 - 04 psi 03 - 03 ps
150 HP 15 in BB BB 37 - 55 psi 39 - 58 psi 10 - 47 psi 09 - 50 psi 09 - 50 psi 09 - 50 ps
150 HP 15 in PC PC 38 - 57 psi 40 - 60 psi 11 - 42 psi 11 - 50 psi 10 - 50 psi 10 - 50 ps
150 HP 20 in BB BB 34 - 37 psi 36 - 39 psi 07 - 10 psi 06 - 09 psi 06 - 09 psi 06 - 09 ps
150 HP 20 in PC PC 34 - 38 psi 36 - 40 psi 07 - 11 psi 07 - 11 psi 07 - 10 psi 06 - 10 ps
150 HP 25 in PC PC 32 - 34 psi 34 - 36 psi 05 - 07 psi 04 - 06 psi 04 - 06 psi 04 - 06 ps
150 HP 30 in PC PC 32 - 32 psi 34 - 34 psi 04 - 05 psi 04 - 04 psi 04 - 04 psi 03 - 04 ps
150 HP 40 in PC PC 31 - 32 psi 33 - 34 psi 04 - 04 psi 03 - 04 psi 03 - 04 psi 03 - 03 ps
200 HP 15 in BB BB 46 - 69 psi 50 - 75 psi 16 - 50 psi 15 - 50 psi 15 - 50 ps
200 HP 15 in PC PC 48 - 72 psi 52 - 78 psi 18 - 50 psi 17 - 50 psi 17 - 50 ps
200 HP 20 in BB BB 41 - 46 psi 45 - 50 psi 10 - 16 psi 10 - 15 psi 10 - 15 ps
200 HP 20 in PC PC 41 - 48 psi 45 - 52 psi 11 - 18 psi 11 - 17 psi 10 - 17 ps
200 HP 25 in PC PC 38 - 41 psi 42 - 45 psi 07 - 10 psi 07 - 10 psi 06 - 10 ps
200 HP 30 in PC PC 36 - 38 psi 40 - 42 psi 06 - 07 psi 05 - 07 psi 05 - 06 ps
200 HP 40 in PC PC 36 - 36 psi 40 - 40 psi 05 - 06 psi 05 - 05 psi 04 - 05 ps
250 HP 15 in BB BB 41 - 62 psi 44 - 67 psi 24 - 50 psi 24 - 27 psi 24 - 26 psi 23 - 26 ps
250 HP 15 in PC PC 45 - 67 psi 48 - 72 psi 28 - 50 psi 27 - 28 psi 27 - 27 psi 27 - 27 ps
250 HP 20 in BB BB 33 - 38 psi 37 - 41 psi 16 - 24 psi 16 - 24 psi 16 - 24 psi 15 - 23 ps
250 HP 20 in PC PC 34 - 40 psi 37 - 43 psi 17 - 28 psi 17 - 27 psi 16 - 27 psi 16 - 27 ps
250 HP 25 in PC PC 29 - 33 psi 32 - 37 psi 11 - 16 psi 11 - 16 psi 11 - 16 psi 10 - 15 ps
250 HP 30 in PC PC 27 - 29 psi 31 - 32 psi 09 - 11 psi 09 - 11 psi 09 - 11 psi 09 - 10 ps
250 HP 40 in PC PC 26 - 27 psi 29 - 31 psi 08 - 09 psi 08 - 09 psi 08 - 09 psi 08 - 09 ps
300 HP 15 in - 20 in BB BB 55 - 83 psi 57 - 85 psi 30 - 50 psi 30 - 36 psi 30 - 35 psi 30 - 35 ps
300 HP 15 in - 20 in PC PC 58 - 87 psi 60 - 90 psi 33 - 50 psi 33 - 37 psi 33 - 36 psi 33 - 36 ps
300 HP 20 in BB BB 46 - 55 psi 47 - 57 psi 21 - 30 psi 21 - 30 psi 20 - 30 psi 20 - 30 ps
300 HP 20 in PC PC 47 - 58 psi 48 - 60 psi 22 - 33 psi 22 - 33 psi 21 - 33 psi 21 - 33 ps
300 HP 30 in PC PC 39 - 46 psi 40 - 47 psi 13 - 21 psi 13 - 21 psi 12 - 20 psi 12 - 20 ps
300 HP 40 in PC PC 37 - 39 psi 39 - 40 psi 11 - 13 psi 11 - 13 psi 10 - 12 psi 10 - 12 ps
350 HP 15 in - 20 in BB BB 64 - 90 psi 62 - 90 psi 42 - 50 psi 42 - 50 psi 41 - 50 psi 41 - 50 ps
350 HP 15 in - 20 in PC PC 68 - 90 psi 66 - 90 psi 46 - 50 psi 46 - 50 psi 45 - 50 psi 45 - 50 ps
350 HP 20 in BB BB 54 - 64 psi 53 - 62 psi 32 - 42 psi 32 - 42 psi 32 - 41 psi 31 - 41 ps
350 HP 20 in PC PC 56 - 68 psi 54 - 66 psi 34 - 46 psi 34 - 46 psi 33 - 45 psi 33 - 45 ps
350 HP 25 in PC PC 43 - 54 psi 42 - 53 psi 21 - 32 psi 21 - 32 psi 20 - 32 psi 20 - 31 ps
350 HP 30 in PC PC 40 - 43 psi 38 - 42 psi 17 - 21 psi 17 - 21 psi 17 - 20 psi 16 - 20 ps
350 HP 40 in PC PC 37 - 40 psi 36 - 38 psi 15 - 17 psi 15 - 17 psi 14 - 17 psi 14 - 16 ps
400 HP 15 in - 20 in BB BB 69 - 90 psi 69 - 90 psi 46 - 50 psi 46 - 50 psi 45 - 50 psi 45 - 50 ps
400 HP 15 in - 20 in PC PC 74 - 90 psi 75 - 90 psi 51 - 87 psi 51 - 77 psi 51 - 77 psi 51 - 77 ps
400 HP 20 in BB BB 55 - 69 psi 56 - 69 psi 32 - 46 psi 32 - 46 psi 32 - 45 psi 32 - 45 ps
400 HP 20 in PC PC 57 - 74 psi 58 - 75 psi 34 - 50 psi 34 - 50 psi 34 - 50 psi 34 - 50 ps
400 HP 25 in PC PC 41 - 55 psi 42 - 56 psi 18 - 32 psi 18 - 32 psi 18 - 32 psi 18 - 32 ps
400 HP 30 in PC PC 37 - 41 psi 38 - 42 psi 13 - 18 psi 13 - 18 psi 13 - 18 psi 13 - 18 ps
400 HP 40 in PC PC 34 - 37 psi 35 - 38 psi 11 - 13 psi 10 - 13 psi 10 - 13 psi 10 - 13 ps
500 HP 20 in - 25 in BB PC 58 - 76 psi 58 - 76 psi 46 - 50 psi 46 - 50 psi 45 - 50 psi 45 - 50 ps
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Model CBLE 125-800 HP Boilers
31
BB = Butter Ball PC = Plug Cock
NOTE In cases where the gas train increases in size after the regulating valve two diameters are listed The first number is the customer connection size
500 HP 20 in - 25 in PC PC 60 - 83 psi 60 - 83 psi 48 - 50 psi 47 - 50 psi 47 - 50 psi 47 - 50 psi
500 HP 25 in PC PC 39 - 58 psi 39 - 58 psi 27 - 46 psi 27 - 46 psi 27 - 45 psi 26 - 45 psi
500 HP 30 in PC PC 33 - 39 psi 33 - 39 psi 20 - 27 psi 20 - 27 psi 20 - 27 psi 20 - 26 psi
500 HP 40 in PC PC 28 - 33 psi 28 - 33 psi 16 - 20 psi 16 - 20 psi 15 - 20 psi 15 - 20 psi
600 HP 20 in - 25 in BB PC 80 - 90 psi 80 - 90 psi 65 - 90 psi 65 - 90 psi 64 - 89 psi 63 - 88 psi
600 HP 20 in - 25 in PC PC 82 - 90 psi 82 - 90 psi 67 - 100 psi 67 - 100 psi 66 - 99 psi 66 - 99 psi
600 HP 25 in PC PC 54 - 80 psi 54 - 80 psi 39 - 50 psi 38 - 50 psi 38 - 50 psi 37 - 50 psi
600 HP 25 in - 30 in PC PC 52 - 54 psi 52 - 54 psi 37 - 39 psi 36 - 38 psi 35 - 38 psi 35 - 37 psi
600 HP 30 in PC PC 43 - 52 psi 43 - 52 psi 28 - 37 psi 27 - 36 psi 27 - 35 psi 26 - 35 psi
600 HP 40 in PC PC 37 - 43 psi 37 - 43 psi 22 - 28 psi 21 - 27 psi 20 - 27 psi 20 - 26 psi
700 HP 20 in - 30 in BB PC 110 - 150 psi 107 - 150 psi 87 - 131 psi 86 - 130 psi 86 - 129 psi 86 - 128 psi
700 HP 20 in - 30 in PC PC 113 - 150 psi 110 - 150 psi 90 - 135 psi 89 - 134 psi 89 - 134 psi 89 - 133 psi
700 HP 25 in - 30 in PC PC 71 - 90 psi 68 - 90 psi 48 - 50 psi 47 - 50 psi 47 - 50 psi 46 - 50 psi
700 HP 30 in PC PC 60 - 71 psi 57 - 68 psi 36 - 48 psi 36 - 47 psi 35 - 47 psi 35 - 46 psi
700 HP 40 in PC PC 51 - 60 psi 48 - 57 psi 28 - 36 psi 27 - 36 psi 27 - 35 psi 26 - 35 psi
800 HP 20 in - 30 in BB PC 108 - 150 psi 107 - 150 psi 106 - 150 psi
800 HP 20 in - 30 in PC PC 112 - 150 psi 111 - 150 psi 110 - 150 psi800 HP 25 in - 30 in PC PC 61 - 90 psi 60 - 100 psi 59 - 100 psi
800 HP 30 in PC PC 48 - 61 psi 47 - 50 psi 46 - 50 psi
800 HP 40 in PC PC 35 - 48 psi 34 - 47 psi 34 - 46 psi
Standard Gas Train size is highlighted
Table A1-21 Standard Undersize and Oversize Gas Trains (Continued)
CBLE
BOILER HP GAS TRAINSIZE
UPSTREAMVALVE
DOWNSTREAMVALVE
EMISSIONS LEVEL 09 ppm 15 ppm 20 ppm 30 ppm 60 ppm UC
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Model CBLE 125-800 HP Boilers
32
ALTITUDE(FT)
CORRECTIONFACTOR
ALTITUDE(FT)
CORRECTIONFACTOR
1000 104 6000 1252000 107 7000 130
3000 111 8000 135
4000 116 9000 140
5000 121 - -
To obtain minimum required gas pressure at altitudesabove 700 feet multiply the pressure by the listed factorsInches WC x 0577 = ozsq-inOzsq-in x 1732 = Inches WCInches WC x 00361= psigOzsq-in x 00625 = psigPsig x 2771 = Inches WCPsig x 160 = Ozsq-in
Table A1-22 Minimum Required Regulated Gas Pressure
Altitude Conversion
BOILERHP
TYPE OF GAS AND HEAT CONTENT
NATURAL GAS1000 (Btucu-ft)
PROPANE GAS2550 (Btucu-ft)
125 5103 2000
150 6124 2402
200 8165 3202
250 10206 4002
300 12247 4802
350 14280 5600
400 16329 6404
500 20415 8006
600 24494 9605
700 28576 11206
800 32659 12807
Table A1-23 Maximum Gas Consumption (CFH)
for Natural Gas and Propane Vapor
BOILER
HP
MODEL CB
CONNECTION SIZE
(IN NPT)
LOCATIONDIMENSION
ldquoArdquo (IN)
125-200 1-12 52
250-350 2 56
400 2 58
500 2-12 60
600 2-12 - 3 71
700-800 3 65
Figure A1-13 Standard Gas Train Connection Size and Location
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Model CBLE 125-800 HP Boilers
33
Oil-Fired Burners Fuel oil consumption information is shown on the boiler rating sheets in theDimensions and Rating Section
Figure A1-16 shows the oil connection sizes and locations for Model CB Boilersfiring No 2 oil
Figure A1-17 through Figure A1-18 show typical oil systems and layouts
Figure A1-19 and Figure A1-20 show the detail of an oil transfer tank (day tank)typically utilized to provide a storage reservoir between the oil system supply pumpand the boiler oil pump
General BoilerInformation
Table A1-24 shows blowdown tank sizing information
Table A1-25 provides heating surface information
Table A1-26 provides steam volume and disengaging area information
Table A1-27 provides recommended steam nozzle sizes
Table A1-28 provides recommended non-return valve sizes
Boiler RoomInformation
Figure A1-21 shows typical boiler room length requirements
Figure A1-22 shows typical boiler room width requirements
Figure A1-23 shows typical breeching arrangements
Stack SupportCapabilities
All standard Cleaver-Brooks Firetube Boilers with an LE option can support up to2000 lbs without additional support
LE Boilers 250 hp through 800 hp can be reinforced to support 3000 lbs
StackBreechingSize Criteria
The design of the stack and breeching must provide the required draft at each boilerflue gas outlet Proper draft is critical to burner performance
Although constant pressure at the flue gas outlet of the Model CB-LE is not requiredit is necessary to size the stackbreeching to limit flue gas pressure variation Theallowable pressure range is ndash025 WC to +025 WC
For additional information please review Section I4 General Engineering Data(Stacks) and Section F Stacks Stack and breeching sizes should always be providedby a reputable stack supplier who will design the stack and breeching system basedon the above criteria Your local Cleaver-Brooks authorized representative is capableof assisting in your evaluation of the stackbreeching design
Boiler RoomCombustion Air
When determining boiler room air requirements the size of the room air flow andvelocity of air must be reviewed as follows
1 Size (area) and location of air supply openings in boiler room
A Two (2) permanent air supply openings in the outer walls of the boiler room
are recommended Locate (1) at each end of the boiler room preferablybelow a height of 7 feet This allows air to sweep the length of the boiler
B Air supply openings can be louvered for weather protection but they shouldnot be covered with fine mesh wire as this type of covering has poor air flowqualities and is subject to clogging by dust or dirt
C A vent fan in the boiler room is not recommended as it could create a slightvacuum under certain conditions and cause variations in the quantity ofcombustion air This can result in unsatisfactory burner performance
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Model CBLE 125-800 HP Boilers
34
D Under no condition should the total area of the air supply openings be lessthan (1) square foot
E Size the openings by using the formulaArea (sq-ft) = CFMFPM
2 Amount of air required (cfm)
A Combustion Air = Rated bhp x 8 cfmbhp
B Ventilation Air = Maximum bhp x 2 cfmbhp
C Total recommended air = 10 cfmbhp - up to 1000 feet elevation Add 3percent more per 1000 feet of added elevation
3 Acceptable air velocity in Boiler Room (fpm)
A From floor to (7) foot height - 250 fpm
B Above (7) foot height - 500 fpm
Example Determine the area of the boiler room air supply openings for (1) 300 hpboiler at 800 feet altitude The air openings are to be 5 feet above floor level
bull Air required 300 x 10 = 3000 cfm (from 2B above)
bull Air velocity Up to 7 feet = 250 fpm (from 3 above)
bull Area Required Area = cfm = 3000250 = 12 sq-ft total
bull AreaOpening 122 = 6 sq-ftopening (2 required)
Notice
Consult local codes which may supersede these requirements
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Model CBLE 125-800 HP Boilers
35
This figure illustrates the basic gas valve arrangement on Cleaver-BrooksModel CB boiler and shows the contractors connection point The valves andcontrols between the contractor connection point and the gas main in thestreet are representative of a typical installation Actual requirements mayvary depending on local codes or local gas company requirements which
should be investigated prior to preparation of specifications and prior to con-struction
A Utilities service valveB Utilities service regulatorC Gas meterD Piping from meter to boiler
The size of the gas line from the meter to the gas pressure regulator at theboiler can be very important if gas pressures are marginal The gas line sizingis dependent on
1 Gas pressure at outlet of gas meter (C)2 Rate of gas flow required CFH3 Length of pipe run (D)4 Pressure required at contractor connection point
The local gas utility will advise the pressure that is available at the outlet oftheir meter
Figure A1-14 Typical Gas Piping Layout
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Model CBLE 125-800 HP Boilers
36
5
6
S
1
3
42
PILOT GAS LINE
S
S
MAIN GAS LINE
M M
ToBurner
GasSupply
11
10
97
12138
14 15
FLOW
FLOW
Figure A1-15 Model CB-LE Gas Train Components
BOILER
HP
MODEL CB
SUPPLYANDRE-
TURNCONN SIZES
(IN)(NPT)
A(IN)
RECOMMENDED OIL LINEA
SIZES(STANDARD PIPE)
(IN - IPS)
STOR-AGE
TANK TOBOILER
OR PUMPCONNECT
PUMPTO
BOILER
RE-TURN
LINE TOTANK
125150 200
34 12-12 1 1 1
250300350
34 34 1 1 1
400500600
34 11-34 1 1 1
700800
1 11-34 1 1 1
NOTE See No 2 Oil Line Sizing Instruction for systems with other conditions A For suction line condition with a maximum of 10 Feet of lift and a
total of 100 feet of suction line
Figure A1-16 No2 Oil Connection Size Location and Recommended Line Sizes
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Model CBLE 125-800 HP Boilers
37
Figure A1-17 No 2 Oil Piping Single Boiler
Installation Remote Oil Pump
Figure A1-18 No 2 Oil Piping Multiple Boiler
Installation Remote Oil Pumps
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Model CBLE 125-800 HP Boilers
38
Figure A1-19 No 2 Oil Piping Multiple Boiler
Installation
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Model CBLE 125-800 HP Boilers
39
Figure A1-20 No 2 Oil Piping Typical Arrangement
Table A1-24 Model CB-LE Blowdown
Tank Sizing
BOILER HP WATER (GAL)
125 97
150 118
200 145
250 146
300 176
350 210
400 177
500 209
600 250
700 800 296
NOTE Quantity of water removed from boiler by lowering normal water line 4
BOILER
HP
HEATING SURFACE (SQ-FT)
FIRESIDE WATERSIDE
125 625 679
150 750 820
200 1000 1092
250 1250 1346
300 1500 1623
350 1750 1932
400 2000 2151
500 2500 2691
600 3000 3262
700 800 3500 3810
Table A1-25 Heating Surface Model CB-LE
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 4043
Model CBLE 125-800 HP Boilers
40
BOILER HPSTEAM VOLUME CU-FT
STEAM DISENGAGING AREASQ-IN
HIGH PRESSUREA LOW PRESSUREB HIGH PRESSUREA LOW PRESSUREB
125 254 366 5371 5887
150 307 443 6511 7138
200 377 544 7985 8752
250 492 706 7980 8695
300 595 853 9651 10516
350 709 1017 11507 12538
400 721 979 9793 10593
500 837 1137 11376 12303
600 1015 1378 13787 14911
700-800 1198 1627 16273 17600
NOTE Based on normal water levelA Based on 150 psig design pressureB Based on 15 psig design pressure
Table A1-26 Steam Volume and Disengaging Area
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 4143
Model CBLE 125-800 HP Boilers
41
BOILERHP
BOILERCAPACITY(LBSHR)
OPERATING PRESSURES (PSIG)
50 75 100 125 150 175 200 250
100 3450
2-12 2-12 NA NA NA NA NA NA
125 4313 3 2-12 2-12 2-12 NA NA NA NA
150 5175 3 3 2-12 2-12 2-12 2-12 NA NA
200 6900 3 3 3 3 3 2-12 2-12 2-12
250 8625 4 3 3 3 3 3 3 3
300 10350 4 4 4 3 3 3 3 3
350 12025 4 4 4 4 4 3 3 3
400 13800 5 4 4 4 4 4 4 3
500 17210 6 5 5 4 4 4 4 4
600 20700 6 6 5 5 5 4 4 4
700 24150 6 6 6 5 5 5 5 4
800 27600 6 6 6 6 6 5 5 5
NOTE Valve sizes (300 Flanges) given in inchesStandard Non-Return valve selections limited to a maximum 2 to 1 turndown(50 of full load) selections based on typical non-return valve sizing recommen-dations For final valve selection contact your C-B authorized representative Forhigh turndown applications see Boiler Book Section I3 Table I3-3 Indicates pressure drop of less than 75 psig All other selections are less than6 psig pressure drop
Boiler HP
OPERATINGPRESSURE
PSIG125 150 200 250 300 350 400 500 600 700 800
15 8 8 10 10 12 12 12 12 12 12 12
30 6 6 8 8 8 10 10 10 12 12 12
40 6 6 6 8 8 8 10 10 10 12 12
50 6 6 6 6 8 8 8 10 10 10 12
75 4 4 6 6 6 8 8 8 8 10 10
100 4 4 6 6 6 6 6 8 8 8 10
125 4 4 4 6 6 6 6 8 8 8 8
150 3 3 4 4 6 6 6 6 6 8 8
200 25 3 4 4 4 4 6 6 6 6 6
250 25 3 3 4 4 4 4 6 6 6 6
NOTES1 Steam nozzle sizes given in inches2 Recommended steam nozzle sizes based on 4000 to 5000 fpm steam velocity3 All standard steam nozzle sizes for 150 psig design pressure or greater are the sameas 125 psig operating pressure on the above table To increase or decrease the standardsize request the change with your local Cleaver-Brooks authorized representative4 Shaded area denotes special surge load baffles must be installed to avoid possible wa-ter carry-over5 For incremental operating pressures see Table I3-1 Steam Systems Fundamentals
Table A1-28 Recommended Steam Nozzle Size (for
4000 to 5000 fpm nozzle velocity)
Table A1-29 Recommended Non-Return Valve Size
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 4243
Model CBLE 125-800 HP Boilers
42
1 Shortest boiler room length (Dwg A) is obtained by allowing for possible future tube replacement (from front or rearof boiler) through a window or doorway Allowance is only made for minimum door swing at each end of the boilerThis arrangement provides sufficient aisle space at the front of the boiler but a ldquotightrdquo space condition at the rear
If space permits approximately 15 additional feet should be allowed at the rear for additional aisle and workingspace
2 Next shortest boiler room length (Dwg B) is obtained by allowing for possible future tube replacement from thefront of the boiler Allowance is only made for minimum door swing at the rear
If space permits approximately 15 additional feet should be allowed at the rear for additional aisle and workingspace
3 A slightly longer boiler room (Dwg C) is obtained by allowing for possible future tube replacement from the rear ofthe boiler Allowance for door swing at the front provides sufficient aisle and working space at the front
Figure A1-21 Boiler Room Length (Typical Layouts)
BOILER HP 125-200 250-350 400-800
Dimension A 82 93 102
Dimension B 115 141 171
NOTES1 Recommended Minimum Distance Between Boiler and Wall Dimen-
sion ldquoArdquo allows for a ldquoclearrdquo 42 aisle between the water col-umn on the boiler and the wall If space permits this aisle
should be widened 2 Recommended Minimum Distance Between BoilersDimension ldquoBrdquo between boilers allows for a ldquoclearrdquo aisle of42 - 125 -200 hp48 - 250-350 hp60 - 400-800 hpIf space permits this aisle should be widened
Figure A1-22 Boiler Room Width (Typical Layout)
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 4343
Model CBLE 125-800 HP Boilers
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 543
Model CBLE 125-800 HP Boilers
5
BOILER HP 125 150 200 250 300 350 400 500 600 700 800
POWER REQUIREMENTS - SEA LEVEL TO 700 FT 60 HZ
Rated Cap Btu Output (1000 Btuhr) 4184 5021 6695 8369 10043 11716 13390 16738 20085 23433 26780
APPROXIMATE FUEL CONSUMPTON AT RATED CAPACITY
Light Oil (gph)A 364 437 583 729 875 1021 1166 1458 1750 2041 2333
Natural Gas (cfh) MBtu 5103 6123 8165 10206 12247 14288 16329 20412 24494 28576 32659
Gas (Thermhr) 510 612 816 1021 1225 1429 1633 2041 2449 2858 3266
POWER REQUIREMENTS - SEA LEVEL TO 700 FT 60 HZ
Blower Motor hp Refer to Tables A1-9 and A1-10
Oil Pump Motor hp No 2 Oil 12 12 12 12 34 34 34 34 34 1 1
Air Compressor Motor hp (Oil firing Only) 3 3 3 5 5 5 7-12 7-12 7-12 7-12 7-12
NOTES
A Based on 140000 Btugal
Table A1-2 Model CB-LE Hot Water Boiler Ratings
BOILER HP 125 150 200 250 300 350 400 500 600 700 800
RATINGS SEA LEVEL TO 700 FT
Rated Steam Cap (lbshr from and 212
degF)
4313 5175 6900 8625 10350 12075 13800 17250 20700 24150 27600
Btu Output (1000 Btuhr) 4184 5021 6695 8369 10043 11716 13390 16738 20085 23433 26780
APPROXIMATE FUEL CONSUMPTION AT RATED CAPACITY
Light Oil (gph)A 364 437 583 729 875 1021 1166 1458 1750 2041 2333
Natural Gas (cfh) MBtu 5103 6123 8165 10206 12247 14288 16329 20412 24494 28576 32659
Gas (Thermhr) 510 612 816 1021 1225 1429 1633 2041 2449 2858 3266
POWER REQUIREMENTS - SEA LEVEL TO 700 FT 60 HZ
Blower Motor hp Refer to Tables A1-9 and A1-10
Oil Pump Motor hp No 2 Oil 12 12 12 12 34 34 34 34 34 1 1
Air Compressor Motor hp (Oil firing Only) 3 3 3 5 5 5 7-12 7-12 7-12 7-12 7-12
NOTES
A Based on 140000 Btugal
Table A1-1 Model CB-LE Steam Boiler Ratings
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 643
Model CBLE 125-800 HP Boilers
6
A
B
C D
E
F
G
H I J
KL
M Y
N
O
P Q
R S
T
UV
W
X
Y AA
BB CC DD EE
GG
HH
HH
JJ
GG
GG
JJ
KK
FF FARSIDE
Table A1-3 Model CB-LE Steam Boiler Dimensions
60rdquo (15 - 150 psig Design Pressure) - Sheet 1 of 2
(measurements shown in inches)
Description DIMBoiler HP
125 150 200
LENGTHS
Length Overall A 173 1965 2285
Shell B 125 149 180
Front Head Extension C 28 28 29
Front Ring Flange to Nozzle - 15 D 88 90 96
Front Ring Flange to Nozzle - 150 D 84 84 96
Rear Head Extension E 195 195 195
Front Ring Flange to Panel G 17 17 17Ring Flange to Base H 05 05 05
Base Frame I 112 136 167
Rear Flange Ring to Base J 125 125 125
HEIGHTS
Ht Overall K 87 87 87
Base to Vent Outlet L 87 87 87
Base to Boiler Centerline M 46 46 46
Base to Gas Train N 6 85 85
Figure A1-1 CB-LE Steam - 125-200 HP
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 743
Model CBLE 125-800 HP Boilers
7
Description DIM Boiler HP
125 150 200
HEIGHTS (continued)
Base to Panel Top T 75 75 77Base to Panel Bottom U 15 15 17
Height of Base V 12 12 12
Base to Steam Nozzle Y 8238 8238 8238
WIDTHS
Width Overall O 8988 89875 905
Center to ALWCO P 3875 3875 3875
Center to Outside Control Panel Q 485 485 485
Center to Lagging R 33 33 33
Center to WC S 445 45 45
Base Inside W 445 445 445
Base Outside X 525 525 525
Boiler ID F 60 60 60
CONNECTIONSElectric - Main Power Supply AA 460 3 60 460 3 60 460 3 60
Surface Blowoff (with collector pipe) BB 1 1 1
Steam Outlet 15 (150 Flange) CC 8 8 10
Steam Outlet 150 (300 Flange) CC 4 4 4
Chemical Feed FF 1 1 1
Feed Water (2) GG 15 15 2
Blowdown (2) 150 HH 15 15 15
Drain (2) 15 HH 15 15 2
Water Column Blowdown JJ 075 075 075
Gauge Glass Blowdown KK 025 025 025
VENT STACK
Diameter (OD) (flgd connection) 16 16 16
CLEARANCES
Rear Door Swing (Davited) 32 32 32
Front Door Swing 67 67 67
Tube Removal Rear 115 139 170
Tube Removal Front 103 127 158
MINIMUM BOILER ROOM LENGTH ALLOWING FOR DOOR SWING AND TUBE REMOVAL
From Rear of Boiler 307 355 417
From Front of Boiler 260 308 370
Through Window or Doorway 224 248 279
WEIGHT IN LBS
Normal Water Capacity 5750 7250 8625
Approx Ship Wt 15 psig 11300 12600 14600
Approx Ship Wt 150 psig 12400 13500 15600
Approx Ship Wt 200 psig 13000 14200 16400
Table A1-3 Model CB-LE Steam Boiler Dimensions 60rdquo (15 - 150 psig Design Pressure) - Sheet 2 of 2
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 843
Model CBLE 125-800 HP Boilers
8
A
BC
D
E
F
G
H I J
K
L
M
N
O
P QR S
T
UV
W
X
Y
AA
BBCC
DD
EE
FF
GG
HH
HH
JJ
JJ
KK
GG
GG
Y
FARSIDE
(measurements shown in inches)
Description DIM
Boiler HP
250 300 350
LENGTHS
Length Overall A 1915 220 250
Shell B 144 171 201
Front Head Extension C 235 25 25
Front Ring Flange to Nozzle - 15 D 90 98 112
Front Ring Flange to Nozzle - 150 D 88 98 112
Rear Head Extension E 24 24 24
Front Ring Flange to Panel G 17 23 23
Ring Flange to Base H 05 05 05
Base Frame I 131 158 188
Rear Flange Ring to Base J 125 125 125
HEIGHTS
Ht Overall K 115 115 115
Base to Vent Outlet L 106 106 106Base to Boiler Centerline M 56 56 56
Base to Gas Train N 10 10 10
Base to Panel Top T 77 77 77
Base to Panel Bottom U 17 17 17
Height of Base V 12 12 12
Base to Steam Nozzle Y 10150 10150 10150
Table A1-4 Model CB-LE Steam Boiler Dimensions
78rdquo (15 - 150 psig Design Pressure) - Sheet 1 of 2
Figure A1-2 CB-LE Steam - 250-350 HP
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 943
Model CBLE 125-800 HP Boilers
9
Description DIM Boiler HP
250 300 350
WIDTHS
Width Overall O 1065 1065 10875Center to ALWCO P 485 485 485
Center to Outside Control Panel Q 58 58 58
Center to Lagging R 42 42 42
Center to WC S 5375 5375 5375
Base Inside W 56 56 56
Base Outside X 64 64 64
Boiler ID F 78 78 78
CONNECTIONS
Electric - Main Power Supply AA 460 3 60 460 3 60 460 3 60
Surface Blowoff (with collector pipe) BB 1 1 1
Steam Outlet 15 (150 Flange) CC 12 12 12
Steam Outlet 150 (300 Flange) CC 6 6 6
Chemical Feed FF 1 1 1
Feed Water (2) GG 2 2 25Blowdown (2) 150 HH 15 15 15
Drain (2) 15 HH 2 2 2
Water Column Blowdown JJ 075 075 075
Gauge Glass Blowdown KK 025 025 025
VENT STACK
Diameter (OD) (flgd connection) 20 20 20
CLEARANCES
Rear Door Swing 43 43 43
Front Door Swing 89 89 89
Tube Removal Rear 131 157 187
Tube Removal Front 116 142 172
MINIMUM BOILER ROOM LENGTH ALLOWING FOR DOOR SWING AND TUBE REMOVAL
From Rear of Boiler 364 417 477
From Front of Boiler 303 356 416
Through Window or Doorway 275 302 332
WEIGHT IN LBS
Normal Water Capacity 10670 13000 15465
Approx Ship Wt 15 psig 21500 23600 26800
Approx Ship Wt 150 psig 22800 25200 27800
Approx Ship Wt 200 psig 24600 27200 29300
Table A1-4 Model CB-LE Steam Boiler Dimensions 78rdquo (15 - 150 psig Design Pressure) - Sheet 2 of 2
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 1043
Model CBLE 125-800 HP Boilers
10
A
BC
D
E
F
G
HI J
K
AA
BB CC
DD
EE
FF
JJ
GG
HH HH
L
M
N
O
P Q
R S
T
UV
W
X
Y
JJ
JJ
KK
GGGG
Y
FARSIDE
Table A1-5 Model CB-LE Steam Boiler Dimensions
96rdquo (15 - 150 psig Design Pressure) - Sheet 1 of 2
(measurements shown in inches)
Description DIMBoiler HP
400 500 600 700 800
LENGTHS
Length Overall A 20575 22775 25975 29875 29875
Shell B 14675 1675 19975 23275 23275
Front Head Extension C 27 28 28 34 34
Front Ring Flange to Nozzle - 15 D 98 101 96 112 112
Front Ring Flange to Nozzle - 150 D 96 100 96 112 112
Rear Head Extension E 32 32 32 32 32
Front Ring Flange to Panel G 26 26 26 26 26
Ring Flange to Base H 05 05 05 05 05
Base Frame I 13375 15475 18675 21975 21975
Rear Flange Ring to Base J 125 125 125 125 125
Figure A1-3 CB-LE Steam - 400-800 HP
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 1143
Model CBLE 125-800 HP Boilers
11
Description DIM Boiler HP
400 500 600 700 800
HEIGHTS
Ht Overall K 134 134 134 134 134Base to Vent Outlet L 126 126 126 126 126
Base to Boiler Centerline M 67 67 67 67 67
Base to Gas Train N 12 12 12 12 12
Base to Panel Top T 75 75 75 75 75
Base to Panel Bottom U 15 15 15 15 15
Height of Base V 12 12 12 12 12
Base to Steam Nozzle Y 1215 1235 1215 121 121
WIDTHS
Width Overall O 124 12425 124 124 124
Center to ALWCO P 575 575 575 575 575
Center to Outside Control Panel Q 665 665 665 665 665
Center to Lagging R 51 51 51 51 51
Center to WC S 63 63 63 63 63
Base Inside W 5888 5888 5888 5888 5888
Base Outside X 7188 7188 7188 7188 7188
Boiler ID F 96 96 96 96 96
CONNECTIONS
Electric - Main Power Supply AA 460 3 60 460 3 60 460 3 60 460 3 60 460 3 60
Surface Blowoff (with collector pipe) BB 1 1 1 1 1
Steam Outlet 15 (150 Flange) CC 12 12 12 12 12
Steam Outlet 150 (300 Flange) CC 6 8 8 8 8
Chemical Feed FF 1 1 1 1 1
Feed Water (2) GG 25 25 25 25 25
BlowdownDrain (2) HH 2 2 2 2 2
Water Column Blowdown JJ 075 075 075 075 075
Gauge Glass Blowdown KK 025 025 025 025 025
VENT STACK
Diameter (OD) (flgd connection) 24 24 24 24 24
CLEARANCES
Rear Door Swing 53 53 53 53 53Front Door Swing 108 108 108 108 108Tube Removal Rear 131 152 184 217 217
Tube Removal Front 114 135 167 200 200
MINIMUM BOILER ROOM LENGTH ALLOWING FOR DOOR SWING AND TUBE REMOVAL
From Rear of Boiler 386 428 492 558 558
From Front of Boiler 314 356 420 486 486
Through Window or Doorway 308 329 361 394 394
WEIGHT IN LBS
Normal Water Capacity 14810 15950 19270 23000 23000
Approx Ship Wt 15 psig 33500 37110 42300 49500 49600 Approx Ship Wt 150 psig 36570 39970 45025 52050 52150
Approx Ship Wt 200 psig 39680 43580 49400 57315 57415
Table A1-5 Model CB-LE Steam Boiler Dimensions
96rdquo (15 - 150 psig Design Pressure) - Sheet 2 of 2
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 1243
Model CBLE 125-800 HP Boilers
12
BOILER HP DIM 125 150 200
LENGTHS
Overall (60 ppm System) A 171-12 196-12 228-12
Shell B 125 149 180
Base Frame C 112 136 167
Front Head Extension (60 ppm System) D 27 28 29
Rear Head Extension E 19-12 19-12 19-12
Front Ring Flange to Outlet HH 114 136 167
Front Ring Flange to Return H 89 102 131
Ring Flange to Base F 12 12 12
Over Tubesheets V 113 137 168
Shell Extension P 12 12 12
Rear Flange Ring to Base G 12-12 12-12 12-12
Table A1-6 Model CB-LE Hot Water Boiler Dimensions
60rdquo (30 and 125 psig Design Pressure) - Sheet 1 of 2
Figure A1-4 CB-LE Hot Water - 125-200 HP
R
F G
WW
P
BB
D E
GG
Q
Z
Y T U
RR - RF - RD
X
HH
A
B
HI
L K
OO O
KK
M
N
EE
FF
DD
V
J
C
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 1343
Model CBLE 125-800 HP Boilers
13
BOILER HP DIM 125 150 200
WIDTHS
Overall I 75-12 75-12 75-12
ID Boiler J 60 60 60
Center to Entrance Box K 42-12 42-12 42-12
Center to Outside Hinge KK 35 35 35
Center to Lagging L 33 33 33
Base Outside M 52-12 52-12 52-12
Base Inside N 44-12 44-12 44-12
HEIGHTS
Overall OO 87 87 87
Base to Vent Outlet O 87 87 87
Base to Return and Outlet X 82-38 82-38 82-38
Height of Base Q 12 12 12
Base to Bottom of Boiler R 16 16 16
BOILER CONNECTION
Auxiliary Connection Z 1 1 1
Water Return Flange T 6A 6A 6A
Water Outlet Flange (2 Dip Tube Included) U 6A 6A 6A
Drain Front and Rear W 1-12 1-12 2
Air Vent Y 1-12 1-12 1-12
VENT STACK
Diameter (flgd connection) BB 16 16 16
MINIMUM CLEARANCES
Rear Door Swing DD 32 32 32
Front Door Swing EE 67 67 67
Tube Removal Rear FF 115 139 170Tube Removal Front GG 103 127 158
MINIMUM BOILER ROOM LENGTH ALLOWING FOR DOOR SWING AND TUBE REMOVAL FROM
Rear of Boiler RR 307 355 417
Front of Boiler RF 260 308 370
Thru Window or Doorway RD 224 248 279
WEIGHT IN LBS
Water Capacity Flooded 7670 9295 11130
Approx Ship Wgt ndash 30 psigApprox Ship Wgt ndash 125 psig
1140011800
1250012900
1450014900
NOTES All connections are threaded unless indicatedA ANSI 150 psig flange
Table A1-6 Model CB-LE Hot Water Boiler Dimensions
60rdquo (30 and 125 psig Design Pressure) - Sheet 2 of 2
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 1443
Model CBLE 125-800 HP Boilers
14
BOILER HP DIM 250 300 350
LENGTHS
Overall (60 ppm System) A 191-12 220 252
Shell B 144 171 201
Base Frame C 131 158 188
Front Head Extension (60 ppm System) D 23-12 25 27
Rear Head Extension E 24 24 24
Front Ring Flange to Return H 103-12 130 160
Front Ring Flange to Outlet HH 131 158 188
Ring Flange to Base F 12 12 12
Over Tubesheets V 129 156 186
Shell Extension P 15 15 15
Rear Flange Ring to Base G 12-12 12-12 12-12
Table A1-7 Model CB-LE Hot Water Boiler Dimensions78rdquo (30 and 125 psig Design Pressure) - Sheet 1 of 2
Figure A1-5 CB-LE Hot Water 250-350 HP
s k o o r B r e v a
e l C
R
F G
WW
P
BB
D E
GG
Q
Z
Y T U
RR - RF - RD
X
HH
A
B
HI
L K
OOO
KK
M
N
EE
FF
DD
V
J
C
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 1543
Model CBLE 125-800 HP Boilers
15
BOILER HP DIM 250 300 350
WIDTHS
Overall I 93 93 93
ID Boiler J 78 78 78
Center to Entrance Box K 51 51 51
Center to Outside Hinge KK 51 51 51
Center to Lagging L 42 42 42
Base Outside M 64 64 64
Base Inside N 52 52 52
HEIGHTS
Overall OO 115 115 115
Base to Vent Outlet O 106 106 106
Base to Return and Outlet X 101-12 101-12 101-12
Height of Base Q 10 10 10
Base to Bottom of Boiler R 17 17 17
BOILER CONNECTION
Auxiliary Connection Z 1-14 1-14 1-14
Water Return Flange (2 Dip Tube included) T 8A 8A 8A
Water Outlet Flange (2 Dip Tube Included) U 8A 8A 8A
Air Vent Y 1-12 1-12 1-12
Drain Front and Rear W 2 2 2
VENT STACK
Diameter (flgd connection) BB 20 20 20
MINIMUM CLEARANCES
Rear Door Swing DD 43 43 43
Front Door Swing EE 89 89 89
Tube Removal Rear FF 131 157 187
Tube Removal Front GG 116 142 172
MINIMUM BOILER ROOM LENGTH ALLOWING FOR DOOR SWING AND TUBE REMOVAL FROM
Rear of Boiler RR 364 417 477
Front of Boiler RF 303 356 416
Thru Window or Doorway RD 275 302 332
WEIGHT IN LBS
Water Capacity Flooded 13880 16840 20090
Approx Ship Wgt ndash 30 psigApprox Ship Wgt ndash 125 psig
2140022200
2350024300
2670027500
NOTES All connections are threaded unless indictedA ANSI 150 psig flange
Table A1-7 Model CB-LE Hot Water Boiler Dimensions
78rdquo (30 and 125 psig Design Pressure) - Sheet 2 of 2
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 1643
Model CBLE 125-800 HP Boilers
16
BOILER HP DIM 400 500 600 700 800
LENGTHS
Overall (60 ppm System) A 206 228 262 299 300
Shell B 147 168 200 233 233
Base Frame C 134 155 187 220 220
Front Head Extension (60 ppm System) D 27 28 30 34 35
Rear Head Extension E 32 32 32 32 32
Shell Ring Flange to Base F 12 12 12 12 12
Rear Ring Flange to Base G 12-12 12-12 12-12 12-12 12-12
Shell Flange to Outlet HH 139-12 156-12 182-12 216-12 216-12
Shell Flange to Return H 107 125 151-12 185 185
Over Tubesheets V 130 151 183 216 216
Shell Extension P 17 17 17 17 17
Table A1-8 Model CB-LE Hot Water Boiler Dimensions96rdquo (30 and 125 psig Design Pressure) - Sheet 1 of 2
Figure A1-6 CB-LE Hot Water 400-800 HP
s k o o r B r e v a
e l C
R
F G
WW
P
BB
D E
GG
Q
Z
Y T U
RR - RF - RD
X
HH
A
B
HI
L K
OOO
KK
M
N
EE
FF
DD
V
J
C
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 1743
Model CBLE 125-800 HP Boilers
17
WIDTHS
Overall I 113 113 113 113 115
ID Boiler J 96 96 96 96 96
Center to Entrance Box K 62 62 62 62 64
Center to Outside Hinge KK 62 62 62 62 62
Center to Lagging L 51 51 51 51 51
Base Outside M 72 72 72 72 72
Base Inside N 56 56 56 56 56
HEIGHTS
Overall OO 134 134 134 134 134
Base to Vent Outlet O 126 126 126 126 126
Height of Base Q 12 12 12 12 12
Base to Bottom of Boiler R 19 19 19 19 19
Base to Return and Outlet X 121-916 121-916 121-916 121-916 121-916
BOILER CONNECTIONS
Auxiliary Connection Z 1-14 1-14 1-14 1-14 1-14
Drain Front and Rear W 2 2 2 2 2
Water Return T 10A 10A 12A 12A 12A
Water Outlet (2rdquo Dip Tube Included) U 10A 10A 12A 12A 12A
Air Vent Y 2 2 2 2 2
VENT STACK
Diameter (Flanged Connection) BB 24 24 24 24 24
MINIMUM CLEARANCES
Rear Door Swing DD 53 53 53 53 53
Front Door Swing EE 108 108 108 108 108
Tube Removal Rear FF 131 152 184 217 217
Tube Removal Front GG 114 135 167 200 200
MINIMUM BOILER ROOM LENGTH ALLOWING FOR DOOR SWING AND TUBE REMOVAL FROM
Rear of Boiler RR 386 428 492 558 558
Front of Boiler RF 314 356 420 486 486
Thru Window or Doorway RD 308 329 361 394 394
WEIGHT IN LBS
Normal Water Capacity 20015 23300 28260 33360 33360
Approx Ship Wgt ndash 30 psig
Approx Ship Wgt ndash 125 psig
33300
37270
36900
40780
42150
46005
49650
53300
49750
53400
NOTES All connections are threaded unless indicated
A ANSI 150 psig flange
BOILER HP DIM 400 500 600 700 800
Table A1-8 Model CB-LE Hot Water Boiler Dimensions
96rdquo (30 and 125 psig Design Pressure) - Sheet 2 of 2
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 1843
Model CBLE 125-800 HP Boilers
18
BOILER HP
MOTOR HP
60PPM
30PPM
25PPM
20PPM
125 5 10 5 10
150 75 10 10 10
200 15 15 20 NA
250 75 10 15 15
300 10 15 20 30
350 15 25 40 40
400 10 15 20 20
500 15 20 25 30
600 25 30 50 60
700 30 50 75 75
800 50 75 NA NA
NOTES For elevations above 700rsquo - contact your local
Cleaver-Brooks authorized representative
Table A1-9 Model CB-LE Blower Motor Selection -
Operating Pressures 150 psig and Less and All Hot
Water Boilers
BOILER HP
MOTOR HP
60
PPM
30
PPM
25
PPM
20
PPM
125 5 10 10 10
150 10 10 10 15
200 15 20 20 NA
250 75 10 15 20
300 10 20 30 40
350 20 30 40 50
400 10 15 20 25
500 20 25 30 40
600 25 40 60 60
700 40 60 75B 75C
800 60 75A NA NA
NOTES For elevation above 700rsquo - contact your local
Cleaver-Brooks authorized representative
A Downrate to 770 hp
B Downrate to 675 hp
C Downrate to 660 hp
Table A1-10 Model CB-LE Blower Motor Selection -
Operating Pressures Greater than 150 psig (Steam
Boilers)
09-09
Table A1-11 Blower Motor Selection CB-LE NTI BoilersTable A1-12 Turndown Guarantee for CB-LE NTI
Boilers - Natural Gas amp 2 Oil
Boiler SizeTurndown
9 ppm 15 ppm
125 41 41
150 41 51
200 41 51
250 51 51
300 51 51
350 51 51
400 51 61
500 51 61
600 61 61
700 71 71
800 71 71
800 HP to be derated to 720 HP for 9 ppm and 750 HP
for 15 ppm
Altitude 700 ft and less - Design Pressure 150 psi and less
800 HP - to be de-rated to 720 HP for 9 ppm and to 750 HP for 15 ppm
mpp9mpp51Nominal
Boiler Size Blower Motor HP Blower Motor HP
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Model CBLE 125-800 HP Boilers
19
BOILER HPFUEL
SERIES
HOT WATER STEAM
30 PSIG 125 PSIG 15 PSIG 150 PSIG 200 PSIG
125100 11200 11600 11300 12000 12600200 11400 11800 11500 12400 13000
700 11300 11700 11400 12300 12900
150
100 12300 12700 12400 13200 13900
200 12500 12900 12600 13500 14200
700 12300 12700 12400 13300 14000
200
100 14400 14800 14500 15500 16300
200 14500 14900 14600 15600 16400
700 14500 14900 14600 15600 16400
250
100 20700 21500 20800 22000 23800
200 21400 22200 21500 22800 24600
700 20900 21700 21000 22500 24300
300
100 23100 23900 23200 24800 26800
200 23500 24300 23600 25200 27200
700 23400 24200 23500 25000 27000
350
100 26200 27000 26300 27600 29100
200 26700 27500 26800 27800 29300
700 26400 27200 26500 27700 29200
400
100 33000 36970 33200 36270 39380
200 33300 37270 33500 36570 39680
700 33200 37170 33400 36470 39580
500
100 36600 40470 36810 39670 43480
200 36900 40780 37110 39970 43580
700 36800 40680 37010 39870 43280
600
100 41850 45905 42000 44725 49100
200 42150 46005 42300 45025 49400
700 42050 45915 42200 44925 49300
700800
100 49450 53000 49300 51850 57015
200 49750 53300 49600 52150 57315
700 49650 53200 49500 52050 57215
NOTES1 Weights shown are based on standard product offering for current listed boilers If units are of special design and construction actual weightwill be determined at time of shipment Shipment will then be made on shippers weight and count All weights are in US pounds
Table A1-13 Model CB-LE Boiler Weights
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Model CBLE 125-800 HP Boilers
20
VALVE
SETTING15 PSIG STEAM 100 PSIG STEAM 125 PSIG STEAM 150 PSIG STEAM 200 PSIG STEAM 250 PSIG STEAM 300 PSIG STEAM
BOILERHP
NO OF
VALVES-REQD
OUTLET
SIZE(IN)
NO OF
VALVES-REQD
OUTLET
SIZE(IN)
NO OF
VALVESREQD
OUTLET
SIZE(IN)
NO OF
VALVES-REQD
OUTLET
SIZE(IN)
NO OF
VALVES-REQD
OUTLET
SIZE(IN)
NO OF
VALVESREQD
OUTLET
SIZE(IN)
NO OF
VALVESREQD
OUTLET
SIZE(IN)
125 1 3 2 1-12 2(1) 1-12(1) 1-14
2(1) 1-12(1) 1-14
2(1) 1-14(1) 1
2 1 2 1
150 1 3 2(1) 2(1) 1-12
2 1-14 2(1) 1-12(1) 1-14
2(1) 1(1) 1-14
2 1 2 1
200 2 2-12 2 2 2 1-12 2 1-12 2(1) 1-12(1) 1-14
2 1-14 2(1) 1(1) 1-14
250 2(1) 2-12(1) 3
2(1) 2-12(1) 2
2(1)2(1)1-12
2(1) 2(1) 1-12
2(1)1-12(1)1-14
2(1) 1-12(1) 1-14
2 1-14
300 2 3 2(1) 2-12(1) 2
2 2 2(1) 2(1) 1-12
2 1-12 2(1)1-12(1)1-14
2(1) 1-12(1) 1-14
350 3(1) 2(2) 3
3(1) 2-12(2) 2
2(1)2(1)1-12
2 2 2(1) 1-12(1) 2
2 1-12 2(1) 1-12(1) 1-14
400 3(2) 3(1) 2-12
3(1) 2(2) 2-12
2(1)2(1)2-12
2(1) 2-12(1) 2
2(1) 1-12(1) 2
2(1) 2(1) 1-12
2 1-12
500 3 (3) 3 3 2-12 2 2-12 2(1) 2-12(1) 2
2(1) 2(1) 2-12
2(1) 2(1)1-12
2(1) 1-12(1) 2
600 4 3 4(3) 2-12(1) 2
3 2-12 2 2-12 2(1) 2(1) 2-12
2 2 2 2
700 5(3) 3(2) 2-12
5(3) 2-12(2) 2
3 2-12 3(2) 2-12(1) 2
2 2-12 2(1) 2(1) 2-12
2 2
800 5(3) 3(2) 2-12
5(3) 2-12(2) 2
4(3) 2-12(1) 2
3(2) 2-12(1) 2
2 2-12 2(1) 2(1) 2-12
2(1) 2(1) 2-12
NOTES Valve manufacturers are Kunkle Consolidated or Conbraco depending on availability This table revised 042012
Table A1-14 Steam Boiler Safety Valve Openings
VALVE
SETTING 30 PSIG HW 60 PSIG HW 100 PSIG HW 125 PSIG HW
BOILER HPNO OF
VALVESREQD
OUTLETSIZE(IN)
NO OFVALVESREQD
OUTLETSIZE(IN)
NO OFVALVESREQD
OUTLETSIZE(IN)
NO OFVALVESREQD
OUTLETSIZE(IN)
125 1 2-12 1 2 1 2 1 1-14
150 1 2-12 1 2-12 1 2 1 2
200 2(1) 2-12(1) 1-14
1 2-12 1 2 1 2
250 2 (1) 2(1) 2-12
1 2-12 1 2-12 1 2
300 2 2-12 2(1) 1(1) 2-12
1 2-12 1 2-12
350 3(2) 2-12(1) 1
2(1) 2-12(1) 2
1 2-12 1 2-12
400 3 (1) 2(2) 2-12 2 (1) 2(2) 2-12 2 (1) 1(1) 2-12 1 2-12
500 4 (1) 1(3) 2-12
2 2-12 2(1) 2-12(1) 1-14
2(1) 1(1) 2-12
600 4(3) 2-12(1) 2
3(1) 1-1(2) 2-12
2(1) 2(1) 2-12
2(1) 2-12(1) 1-14
700 amp 800 5 (1) 1(4) 2-12
3(1) 2(2) 2-12
2 2-12 2(1) 2-12(1) 2
NOTES Hot water relief valves are Kunkle 537
Table A1-15 Hot Water Boiler Relief Valve Openings
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Model CBLE 125-800 HP Boilers
21
BOILER HP A B C D E F G X1 X2 X3
125 6 9 112 39-12 57-12 4 44-12 10 9-34 22-12
150 6 9 136 39-12 57-12 4 44-12 10 9-34 22-12
200 6 9 167 39-12 57-12 4 44-12 10 9-34 22-12
250 6 12 131 46 70 4 56 10 22 22-12
300 6 12 158 46 70 4 56 10 22 22-12
350 6 12 188 46 70 4 56 10 22 22-12
NOTE
All numbers in table are in inches
6-inch high mounting piers recommended for use beneath the boiler base frame The use of these piers provides increased inspection
accessibility to the piping beneath the boiler and added height for washing down the area beneath the boiler
Figure A1-7 Space Required to Open Rear Head on Model CB-LE Boilers Equipped with Davits
BOILER HPDIMENSIONS (INCHES)
A B C D E
CB-125 THRU CB-200 33 55 45 68 32
CB-250 THRU CB-350 42 69 58 86 43
CB-400 THRU CB-800 51 88 71 109 53
Figure A1-8 Model CB-LE Boiler Mounting Piers (60rdquo and 78rdquo)
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Model CBLE 125-800 HP Boilers
22
BOILER HP A B C D E F G
400 6 14 134 50 78 6-12 58-78
500 6 14 155 50 78 6-12 58-78
600 6 14 187 50 78 6-12 58-78
700-800 6 14 220 50 78 6-12 58-78
NOTE1 All numbers in table are in inches2 6-inch high mounting piers recommended for use beneath the boiler base frame The use of these piers provides in-
creased inspection accessibility to the piping beneath the boiler and added height for washing down the area beneaththe boiler
Figure A1-9 Model CB-LE Boiler Mounting Piers (96rdquo)
CBLE 250-350HP
CBLE 400-800HP
Motor HP Hole Number
75 1
15 1
25 2
40 3
Motor HP Hole Number
10 1
20 1
30 250 2
75 3
Figure A1-10 Front Davit Support
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Model CBLE 125-800 HP Boilers
23
BOILERHP
VIEW
ALL DIMENSIONS IN INCHES
A B C D E
125 All B 80-14 29-34 70-12 10 3
150 All B 80-14 29-34 83-12 10 3
200 All B 80-14 29-34 114-12 10 3
250Steam B 99 36 72 10 3
Hot Water B 99 36 81 10 3
300
Steam B 99 36 99 10 3
Hot Water B 99 36 108 10 3
350Steam B 99 36 129 10 3
Hot Water B 99 36 138 10 3
400Steam B 119 35-34 78 11 3
Hot Water B 119 35-34 78 11 3
500Steam B 119 35-34 99 11 3
Hot Water B 119 35-34 99 11 3
600Steam B 119 35-34 131 11 3
Hot Water B 119 35-34 131 11 3
700 amp 800Steam B 119 35-34 164 11 3
Hot Water B 119 35-34 164 11 3
NOTE A B and C dimensions may vary by 12 inch
Figure A1-11 Lifting Lug Location Model CB-LE Boilers
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Model CBLE 125-800 HP Boilers
24
PERFORMANCE DATA
The Low Emission Option provides NOx reduction at current published andpredicted fuel-to-steam efficiencies
Specifying BoilerEfficiency
Cleaver-Brooks offers an industry leading fuel-to-steam boiler efficiency guaranteefor Model CB-LE Firetube Boilers The guarantee is based on the fuel-to-steam
efficiencies shown in the efficiency tables and the following conditions Theefficiency percent number is only meaningful if the specific conditions of theefficiency calculations are clearly stated in the specification (see Cleaver-Brookspublication CB-7768 for a detailed description of efficiency calculations)
When specifying the efficiencies in the tables be sure to include the specificguarantee conditions to maximize the effectiveness of your efficiency specification Ifyou have any questions regarding the efficiency specifications please contact yourlocal Cleaver-Brooks authorized representative
EfficiencySpecification
The boiler manufacturer shall guarantee that at the time of startup the boiler willachieve fuel-to-steam efficiency (as shown in Table A1-16 and Table A1-17) at100 firing rate (add efficiency guarantees at 25 50 and 75 of rating if
required) If the boiler(s) fail to achieve the corresponding guaranteed efficiency aspublished the boiler manufacturer will rebate to the ultimate boiler owner tenthousand dollars ($10000) for every full efficiency point (10) that the actualefficiency is below the guaranteed level
The specified boiler efficiency is based on the following conditions
1 Fuel specification used to determine boiler efficiency
bull Natural Gas
Carbon (wt) = 6998Hydrogen (wt) = 2231Sulfur (wt) = 00
Heating value Btulb = 21830bull No 2 Oil
Carbon (wt) = 858Hydrogen (wt) = 127Sulfur (wt) = 02Heating value Btulb = 19420
No 6 Oil
Carbon (wt) = 866Hydrogen (wt) = 109Sulfur (wt) = 209Heating value Btulb = 18830
2 Efficiencies are based on ambient air temperature of 80 degF relative humidity of30 and 15 excess air in the exhaust flue gas
3 Efficiencies are based on manufacturerrsquos published radiation and convectionlosses (For Cleaver-Brooks radiation and convection losses see BoilerEfficiency Facts Guide publication number CB-7767)
4 Any efficiency verification testing will be based on the stack loss method
For efficiencies and stack temperatures at operating pressures not listed followthese procedures
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Model CBLE 125-800 HP Boilers
25
When the operating steam pressure is between 10 psig and 125 psig interpolatethe values from the efficiency tables
When the operating steam pressure is above 125 psig estimated efficiency can becalculated as follows
Example
Boiler 350 hpFuel natural gas
Operating steam pressure 200 psig
Find the fuel-to-steam efficiency at 100 firing rate From Table A1-16 for a 350hp boiler operating at 100 firing rate and an operating steam pressure of 125psig the efficiency is 825
Using Figure A1-12 note that the stack temperature increases 36 degF at the higheroperating pressure To estimate boiler efficiency use this rule of thumb For every40 degF increase in stack temperature efficiency decreases by 1 Since the stacktemperature rise is 36 degF the decrease in the boiler efficiency at 200 psig operatingpressure is calculated as follows 3640 =9 Therefore the boiler efficiency at200 psig operating pressure is 825 -9 = 816
Emissions The emission data included in this section consists of typical emission levels forModel CB boilers equipped with 60 30 25 and 20 ppm LE Options when firingnatural gas and No 2 oil
Notice
The data in Table A1-18 and Table A1-19 represent typical emission levels only
Guaranteed emission levels are available from your local Cleaver-Brooks authorized
representative
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Model CBLE 125-800 HP Boilers
26
BOILER
HP
OPERATING PRESSURE = 10 psig OPERATING PRESSURE = 125 psig
OF LOAD OF LOAD
25 50 75 100 25 50 75 100
125 833 836 834 832 804 809 810 810
150 844 846 845 843 815 820 820 821
200 850 853 851 849 822 827 827 827
250 850 847 840 833 820 820 816 813
300 853 853 846 839 826 827 822 819
350 853 857 852 845 826 832 828 825
400 845 847 846 844 818 822 824 822
500 855 857 855 852 828 832 833 831
600 857 860 858 856 829 835 836 835
700 857 862 860 857 830 836 836 836
800 858 861 859 856 831 836 837 835
Table A1-16 Predicted Fuel-to-Steam Efficiencies - Natural Gas
Figure A1-12 Predicted Stack Temperature Increase for Pressure Greater Than 125 psig
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Model CBLE 125-800 HP Boilers
27
Table A1-18 CB-LE Boilers - Natural Gas Emission Levels
POLLUTANT
ESTIMATED LEVEL
60 ppm 30 ppm 25 ppm 20 ppm 15 ppm 9 ppm
CO ppmA
lbMMBtu
50150B
004011
50150B
004011
50150B
004011
50150B
004011
50
004
50
004
NOx ppmA
lbMMBtu
60
007
30
0035
25
003
20
0024
15
0018
9
0011
SOx ppmA
lbMMBtu
1
0001
1
0001
1
0001
1
0001
1
0001
1
0001
HCVOC5 ppmA
lbMMBtu
10
0004
10
0004
10
0004
10
0004
10
0004
10
0004
PM ppmA
lbMMBtu
-
001
-
001
-
001
-
001
-
001
-
001
A ppm levels are given on a dry volume basis and corrected to 3 oxygen (15 excess air)
B CO emission for 60 30 25 amp 20 ppm system is 50 ppm (004 lbMMBtu) when boiler is operating above 50 of rated capacity
CO emission is 150 ppm (011 lbMMBtu) when boiler is operating below 50 of rated capacity
Table A1-17 Predicted Fuel-to-Steam Efficiencies - No 2 Oil
BOILER
HP
OPERATING PRESSURE = 10 psig OPERATING PRESSURE = 125 psig
OF LOAD OF LOAD
25 50 75 100 25 50 75 100
125 867 869 867 866 837 842 843 843
150 878 880 878 876 848 853 853 854
200 884 887 884 882 856 860 860 860
250 883 881 874 867 853 853 849 847
300 886 887 880 873 859 860 855 852
350 886 890 885 878 859 866 861 858
400 879 881 879 876 851 855 856 855
500 889 890 889 886 861 865 866 864
600 890 894 892 890 862 868 869 868
700 891 895 893 891 863 869 870 869
800 892 895 893 890 864 869 870 868
Table A1-19 CB-LE Boilers - No 2 Oil Emission Levels
POLLUTANTESTIMATED LEVEL
60 ppm LE Option 30 25 20 ppm LE Option 15 ppm 9 ppm
CO ppmA
lbMMBtu
50
0039
50
0039
50
0039
50
0039
NOx ppmA
lbMMBtu140
018690
012085
011370
0093
SOx ppmA
lbMMBtu
278
052
278
052
278
052
278
052
HCVOCs ppmA
lbMMBtu
4
0002
4
0002
4
0002
4
0002
PM ppmA
lbMMBtu
-
0025
-
0025
-
0025
-
0025
A ppm levels are given on a dry volume basis and corrected to 3 oxygen (15 excess air)
BASED ON THE FOLLOWING CONSTITUENT LEVELS
Fuel-bound Nitrogen content = 0015 by weight
Sulfur content = 05 by weight
Ash content = 001 by weight
09-09
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Model CBLE 125-800 HP Boilers
28
ENGINEERING DATA
Sound Level Table A1-20 gives a summary of predicted sound pressure levels for Model CBboilers with 30 ppm LE Options Contact your local Cleaver-Brooks authorizedrepresentative for sound levels or other LE Options
Units - The units for the sound level tables are dbA (decibels measured on the A-weighted scale) in reference to 00002 microbars (20 micro-Newtons per square
meter) Their reference are standardly used in specifying and reporting soundpressure levels on industrial equipment
Test Method - The sound pressure levels in the above tables were obtained fromtests in accordance with the ldquoABMA Test Code for the Measurement of Sound fromPackaged Boilersrdquo In accordance with this code the sound pressure levels reportedwere measured on the boiler centerline 4-12 feet vertically above the bottom of thebase rails and 3 feet horizontally in front of the end of the blower motor or frontsurface of the electrical cabinet
Sound Level Meter - The sound level meter used complies with ANSI S14 Type 1(Precision) The readings are taken with the meter set for slow response andcorrected for background levels
Sound Pressure - The large size boilers the need for auxiliary equipment and thenecessary interconnecting piping make it impractical (and sometimes impossible) toprovide a boiler testing environment which is suitable for taking the data needed todevelop Sound Pressure Power levels
Typical Values - Sound pressure levels (dbA) for the same boiler will vary betweenboiler rooms Sound levels will vary with motor type NOx levels and altitudes Inaddition variations will occur between different people using different sound meterson the same boiler And finally no two boilers can be expected to give precisely thesame sound levels For these reasons we can only predict but not guarantee soundlevels (dbA)
BOILER HP 125 150 200 250 300 350 400 500 600 700 800
HFO dbA 84 84 84 83 84 85 84 85 85 88 90
LFO dbA 82 82 83 81 82 83 82 83 83 84 89
HFG dbA 82 82 83 82 83 84 83 83 85 87 90
LFG dbA 81 81 82 81 82 83 81 81 82 84 88
NOTES1 Sound pressure levels measured on boilers operating in various locations and ex-
pressed in dbA are as shown2 Based on standard altitude fans and fan motors 60 Hz3 Contact your local Cleaver-Brooks authorized representative for sound levels of 60 25or 20 ppm LE Options
ABBREVIATIONS
HF = High Fire LF = Low Fire O = Oil G = Gas
Table A1-20 Model CBLE Predicted Sound Levels 30 ppm NOx Systemss
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Model CBLE 125-800 HP Boilers
29
Gas-Fired Burners Table A1-21 shows gas pressure with standard over- and undersized gas trains
Table A1-22 shows minimum required gas pressure altitude conversion
Figure A1-13 shows standard gas train sizes and locations for Model CB FiretubeBoilers
Figure A1-14 shows typical gas train piping layouts for multiple boiler applications
Figure A1-15 shows standard gas train components
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Model CBLE 125-800 HP Boilers
30
Table A1-21 Standard Undersize and Oversize Gas Trains
CBLE
BOILER HP GAS TRAINSIZE
UPSTREAMVALVE
DOWNSTREAMVALVE
EMISSIONS LEVEL 09 ppm 15 ppm 20 ppm 30 ppm 60 ppm UC
125 HP 15 in BB BB 33 - 49 psi 33 - 49 psi 08 - 50 psi 07 - 50 psi 07 - 50 psi 07 - 50 ps
125 HP 15 in PC PC 34 - 50 psi 34 - 50 psi 09 - 50 psi 08 - 50 psi 08 - 50 psi 08 - 50 ps
125 HP 20 in BB BB 31 - 33 psi 31 - 33 psi 06 - 08 psi 06 - 07 psi 05 - 07 psi 05 - 07 ps
125 HP 20 in PC PC 31 - 34 psi 31 - 34 psi 06 - 09 psi 06 - 08 psi 06 - 08 psi 05 - 08 ps
125 HP 25 in PC PC 30 - 31 psi 30 - 31 psi 04 - 06 psi 04 - 06 psi 04 - 05 psi 04 - 05 ps
125 HP 30 in PC PC 29 - 30 psi 29 - 30 psi 04 - 04 psi 04 - 04 psi 04 - 04 psi 03 - 04 ps
125 HP 40 in PC PC 29 - 29 psi 29 - 29 psi 04 - 04 psi 03 - 04 psi 03 - 04 psi 03 - 03 ps
150 HP 15 in BB BB 37 - 55 psi 39 - 58 psi 10 - 47 psi 09 - 50 psi 09 - 50 psi 09 - 50 ps
150 HP 15 in PC PC 38 - 57 psi 40 - 60 psi 11 - 42 psi 11 - 50 psi 10 - 50 psi 10 - 50 ps
150 HP 20 in BB BB 34 - 37 psi 36 - 39 psi 07 - 10 psi 06 - 09 psi 06 - 09 psi 06 - 09 ps
150 HP 20 in PC PC 34 - 38 psi 36 - 40 psi 07 - 11 psi 07 - 11 psi 07 - 10 psi 06 - 10 ps
150 HP 25 in PC PC 32 - 34 psi 34 - 36 psi 05 - 07 psi 04 - 06 psi 04 - 06 psi 04 - 06 ps
150 HP 30 in PC PC 32 - 32 psi 34 - 34 psi 04 - 05 psi 04 - 04 psi 04 - 04 psi 03 - 04 ps
150 HP 40 in PC PC 31 - 32 psi 33 - 34 psi 04 - 04 psi 03 - 04 psi 03 - 04 psi 03 - 03 ps
200 HP 15 in BB BB 46 - 69 psi 50 - 75 psi 16 - 50 psi 15 - 50 psi 15 - 50 ps
200 HP 15 in PC PC 48 - 72 psi 52 - 78 psi 18 - 50 psi 17 - 50 psi 17 - 50 ps
200 HP 20 in BB BB 41 - 46 psi 45 - 50 psi 10 - 16 psi 10 - 15 psi 10 - 15 ps
200 HP 20 in PC PC 41 - 48 psi 45 - 52 psi 11 - 18 psi 11 - 17 psi 10 - 17 ps
200 HP 25 in PC PC 38 - 41 psi 42 - 45 psi 07 - 10 psi 07 - 10 psi 06 - 10 ps
200 HP 30 in PC PC 36 - 38 psi 40 - 42 psi 06 - 07 psi 05 - 07 psi 05 - 06 ps
200 HP 40 in PC PC 36 - 36 psi 40 - 40 psi 05 - 06 psi 05 - 05 psi 04 - 05 ps
250 HP 15 in BB BB 41 - 62 psi 44 - 67 psi 24 - 50 psi 24 - 27 psi 24 - 26 psi 23 - 26 ps
250 HP 15 in PC PC 45 - 67 psi 48 - 72 psi 28 - 50 psi 27 - 28 psi 27 - 27 psi 27 - 27 ps
250 HP 20 in BB BB 33 - 38 psi 37 - 41 psi 16 - 24 psi 16 - 24 psi 16 - 24 psi 15 - 23 ps
250 HP 20 in PC PC 34 - 40 psi 37 - 43 psi 17 - 28 psi 17 - 27 psi 16 - 27 psi 16 - 27 ps
250 HP 25 in PC PC 29 - 33 psi 32 - 37 psi 11 - 16 psi 11 - 16 psi 11 - 16 psi 10 - 15 ps
250 HP 30 in PC PC 27 - 29 psi 31 - 32 psi 09 - 11 psi 09 - 11 psi 09 - 11 psi 09 - 10 ps
250 HP 40 in PC PC 26 - 27 psi 29 - 31 psi 08 - 09 psi 08 - 09 psi 08 - 09 psi 08 - 09 ps
300 HP 15 in - 20 in BB BB 55 - 83 psi 57 - 85 psi 30 - 50 psi 30 - 36 psi 30 - 35 psi 30 - 35 ps
300 HP 15 in - 20 in PC PC 58 - 87 psi 60 - 90 psi 33 - 50 psi 33 - 37 psi 33 - 36 psi 33 - 36 ps
300 HP 20 in BB BB 46 - 55 psi 47 - 57 psi 21 - 30 psi 21 - 30 psi 20 - 30 psi 20 - 30 ps
300 HP 20 in PC PC 47 - 58 psi 48 - 60 psi 22 - 33 psi 22 - 33 psi 21 - 33 psi 21 - 33 ps
300 HP 30 in PC PC 39 - 46 psi 40 - 47 psi 13 - 21 psi 13 - 21 psi 12 - 20 psi 12 - 20 ps
300 HP 40 in PC PC 37 - 39 psi 39 - 40 psi 11 - 13 psi 11 - 13 psi 10 - 12 psi 10 - 12 ps
350 HP 15 in - 20 in BB BB 64 - 90 psi 62 - 90 psi 42 - 50 psi 42 - 50 psi 41 - 50 psi 41 - 50 ps
350 HP 15 in - 20 in PC PC 68 - 90 psi 66 - 90 psi 46 - 50 psi 46 - 50 psi 45 - 50 psi 45 - 50 ps
350 HP 20 in BB BB 54 - 64 psi 53 - 62 psi 32 - 42 psi 32 - 42 psi 32 - 41 psi 31 - 41 ps
350 HP 20 in PC PC 56 - 68 psi 54 - 66 psi 34 - 46 psi 34 - 46 psi 33 - 45 psi 33 - 45 ps
350 HP 25 in PC PC 43 - 54 psi 42 - 53 psi 21 - 32 psi 21 - 32 psi 20 - 32 psi 20 - 31 ps
350 HP 30 in PC PC 40 - 43 psi 38 - 42 psi 17 - 21 psi 17 - 21 psi 17 - 20 psi 16 - 20 ps
350 HP 40 in PC PC 37 - 40 psi 36 - 38 psi 15 - 17 psi 15 - 17 psi 14 - 17 psi 14 - 16 ps
400 HP 15 in - 20 in BB BB 69 - 90 psi 69 - 90 psi 46 - 50 psi 46 - 50 psi 45 - 50 psi 45 - 50 ps
400 HP 15 in - 20 in PC PC 74 - 90 psi 75 - 90 psi 51 - 87 psi 51 - 77 psi 51 - 77 psi 51 - 77 ps
400 HP 20 in BB BB 55 - 69 psi 56 - 69 psi 32 - 46 psi 32 - 46 psi 32 - 45 psi 32 - 45 ps
400 HP 20 in PC PC 57 - 74 psi 58 - 75 psi 34 - 50 psi 34 - 50 psi 34 - 50 psi 34 - 50 ps
400 HP 25 in PC PC 41 - 55 psi 42 - 56 psi 18 - 32 psi 18 - 32 psi 18 - 32 psi 18 - 32 ps
400 HP 30 in PC PC 37 - 41 psi 38 - 42 psi 13 - 18 psi 13 - 18 psi 13 - 18 psi 13 - 18 ps
400 HP 40 in PC PC 34 - 37 psi 35 - 38 psi 11 - 13 psi 10 - 13 psi 10 - 13 psi 10 - 13 ps
500 HP 20 in - 25 in BB PC 58 - 76 psi 58 - 76 psi 46 - 50 psi 46 - 50 psi 45 - 50 psi 45 - 50 ps
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Model CBLE 125-800 HP Boilers
31
BB = Butter Ball PC = Plug Cock
NOTE In cases where the gas train increases in size after the regulating valve two diameters are listed The first number is the customer connection size
500 HP 20 in - 25 in PC PC 60 - 83 psi 60 - 83 psi 48 - 50 psi 47 - 50 psi 47 - 50 psi 47 - 50 psi
500 HP 25 in PC PC 39 - 58 psi 39 - 58 psi 27 - 46 psi 27 - 46 psi 27 - 45 psi 26 - 45 psi
500 HP 30 in PC PC 33 - 39 psi 33 - 39 psi 20 - 27 psi 20 - 27 psi 20 - 27 psi 20 - 26 psi
500 HP 40 in PC PC 28 - 33 psi 28 - 33 psi 16 - 20 psi 16 - 20 psi 15 - 20 psi 15 - 20 psi
600 HP 20 in - 25 in BB PC 80 - 90 psi 80 - 90 psi 65 - 90 psi 65 - 90 psi 64 - 89 psi 63 - 88 psi
600 HP 20 in - 25 in PC PC 82 - 90 psi 82 - 90 psi 67 - 100 psi 67 - 100 psi 66 - 99 psi 66 - 99 psi
600 HP 25 in PC PC 54 - 80 psi 54 - 80 psi 39 - 50 psi 38 - 50 psi 38 - 50 psi 37 - 50 psi
600 HP 25 in - 30 in PC PC 52 - 54 psi 52 - 54 psi 37 - 39 psi 36 - 38 psi 35 - 38 psi 35 - 37 psi
600 HP 30 in PC PC 43 - 52 psi 43 - 52 psi 28 - 37 psi 27 - 36 psi 27 - 35 psi 26 - 35 psi
600 HP 40 in PC PC 37 - 43 psi 37 - 43 psi 22 - 28 psi 21 - 27 psi 20 - 27 psi 20 - 26 psi
700 HP 20 in - 30 in BB PC 110 - 150 psi 107 - 150 psi 87 - 131 psi 86 - 130 psi 86 - 129 psi 86 - 128 psi
700 HP 20 in - 30 in PC PC 113 - 150 psi 110 - 150 psi 90 - 135 psi 89 - 134 psi 89 - 134 psi 89 - 133 psi
700 HP 25 in - 30 in PC PC 71 - 90 psi 68 - 90 psi 48 - 50 psi 47 - 50 psi 47 - 50 psi 46 - 50 psi
700 HP 30 in PC PC 60 - 71 psi 57 - 68 psi 36 - 48 psi 36 - 47 psi 35 - 47 psi 35 - 46 psi
700 HP 40 in PC PC 51 - 60 psi 48 - 57 psi 28 - 36 psi 27 - 36 psi 27 - 35 psi 26 - 35 psi
800 HP 20 in - 30 in BB PC 108 - 150 psi 107 - 150 psi 106 - 150 psi
800 HP 20 in - 30 in PC PC 112 - 150 psi 111 - 150 psi 110 - 150 psi800 HP 25 in - 30 in PC PC 61 - 90 psi 60 - 100 psi 59 - 100 psi
800 HP 30 in PC PC 48 - 61 psi 47 - 50 psi 46 - 50 psi
800 HP 40 in PC PC 35 - 48 psi 34 - 47 psi 34 - 46 psi
Standard Gas Train size is highlighted
Table A1-21 Standard Undersize and Oversize Gas Trains (Continued)
CBLE
BOILER HP GAS TRAINSIZE
UPSTREAMVALVE
DOWNSTREAMVALVE
EMISSIONS LEVEL 09 ppm 15 ppm 20 ppm 30 ppm 60 ppm UC
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Model CBLE 125-800 HP Boilers
32
ALTITUDE(FT)
CORRECTIONFACTOR
ALTITUDE(FT)
CORRECTIONFACTOR
1000 104 6000 1252000 107 7000 130
3000 111 8000 135
4000 116 9000 140
5000 121 - -
To obtain minimum required gas pressure at altitudesabove 700 feet multiply the pressure by the listed factorsInches WC x 0577 = ozsq-inOzsq-in x 1732 = Inches WCInches WC x 00361= psigOzsq-in x 00625 = psigPsig x 2771 = Inches WCPsig x 160 = Ozsq-in
Table A1-22 Minimum Required Regulated Gas Pressure
Altitude Conversion
BOILERHP
TYPE OF GAS AND HEAT CONTENT
NATURAL GAS1000 (Btucu-ft)
PROPANE GAS2550 (Btucu-ft)
125 5103 2000
150 6124 2402
200 8165 3202
250 10206 4002
300 12247 4802
350 14280 5600
400 16329 6404
500 20415 8006
600 24494 9605
700 28576 11206
800 32659 12807
Table A1-23 Maximum Gas Consumption (CFH)
for Natural Gas and Propane Vapor
BOILER
HP
MODEL CB
CONNECTION SIZE
(IN NPT)
LOCATIONDIMENSION
ldquoArdquo (IN)
125-200 1-12 52
250-350 2 56
400 2 58
500 2-12 60
600 2-12 - 3 71
700-800 3 65
Figure A1-13 Standard Gas Train Connection Size and Location
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
33
Oil-Fired Burners Fuel oil consumption information is shown on the boiler rating sheets in theDimensions and Rating Section
Figure A1-16 shows the oil connection sizes and locations for Model CB Boilersfiring No 2 oil
Figure A1-17 through Figure A1-18 show typical oil systems and layouts
Figure A1-19 and Figure A1-20 show the detail of an oil transfer tank (day tank)typically utilized to provide a storage reservoir between the oil system supply pumpand the boiler oil pump
General BoilerInformation
Table A1-24 shows blowdown tank sizing information
Table A1-25 provides heating surface information
Table A1-26 provides steam volume and disengaging area information
Table A1-27 provides recommended steam nozzle sizes
Table A1-28 provides recommended non-return valve sizes
Boiler RoomInformation
Figure A1-21 shows typical boiler room length requirements
Figure A1-22 shows typical boiler room width requirements
Figure A1-23 shows typical breeching arrangements
Stack SupportCapabilities
All standard Cleaver-Brooks Firetube Boilers with an LE option can support up to2000 lbs without additional support
LE Boilers 250 hp through 800 hp can be reinforced to support 3000 lbs
StackBreechingSize Criteria
The design of the stack and breeching must provide the required draft at each boilerflue gas outlet Proper draft is critical to burner performance
Although constant pressure at the flue gas outlet of the Model CB-LE is not requiredit is necessary to size the stackbreeching to limit flue gas pressure variation Theallowable pressure range is ndash025 WC to +025 WC
For additional information please review Section I4 General Engineering Data(Stacks) and Section F Stacks Stack and breeching sizes should always be providedby a reputable stack supplier who will design the stack and breeching system basedon the above criteria Your local Cleaver-Brooks authorized representative is capableof assisting in your evaluation of the stackbreeching design
Boiler RoomCombustion Air
When determining boiler room air requirements the size of the room air flow andvelocity of air must be reviewed as follows
1 Size (area) and location of air supply openings in boiler room
A Two (2) permanent air supply openings in the outer walls of the boiler room
are recommended Locate (1) at each end of the boiler room preferablybelow a height of 7 feet This allows air to sweep the length of the boiler
B Air supply openings can be louvered for weather protection but they shouldnot be covered with fine mesh wire as this type of covering has poor air flowqualities and is subject to clogging by dust or dirt
C A vent fan in the boiler room is not recommended as it could create a slightvacuum under certain conditions and cause variations in the quantity ofcombustion air This can result in unsatisfactory burner performance
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
34
D Under no condition should the total area of the air supply openings be lessthan (1) square foot
E Size the openings by using the formulaArea (sq-ft) = CFMFPM
2 Amount of air required (cfm)
A Combustion Air = Rated bhp x 8 cfmbhp
B Ventilation Air = Maximum bhp x 2 cfmbhp
C Total recommended air = 10 cfmbhp - up to 1000 feet elevation Add 3percent more per 1000 feet of added elevation
3 Acceptable air velocity in Boiler Room (fpm)
A From floor to (7) foot height - 250 fpm
B Above (7) foot height - 500 fpm
Example Determine the area of the boiler room air supply openings for (1) 300 hpboiler at 800 feet altitude The air openings are to be 5 feet above floor level
bull Air required 300 x 10 = 3000 cfm (from 2B above)
bull Air velocity Up to 7 feet = 250 fpm (from 3 above)
bull Area Required Area = cfm = 3000250 = 12 sq-ft total
bull AreaOpening 122 = 6 sq-ftopening (2 required)
Notice
Consult local codes which may supersede these requirements
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 3543
Model CBLE 125-800 HP Boilers
35
This figure illustrates the basic gas valve arrangement on Cleaver-BrooksModel CB boiler and shows the contractors connection point The valves andcontrols between the contractor connection point and the gas main in thestreet are representative of a typical installation Actual requirements mayvary depending on local codes or local gas company requirements which
should be investigated prior to preparation of specifications and prior to con-struction
A Utilities service valveB Utilities service regulatorC Gas meterD Piping from meter to boiler
The size of the gas line from the meter to the gas pressure regulator at theboiler can be very important if gas pressures are marginal The gas line sizingis dependent on
1 Gas pressure at outlet of gas meter (C)2 Rate of gas flow required CFH3 Length of pipe run (D)4 Pressure required at contractor connection point
The local gas utility will advise the pressure that is available at the outlet oftheir meter
Figure A1-14 Typical Gas Piping Layout
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Model CBLE 125-800 HP Boilers
36
5
6
S
1
3
42
PILOT GAS LINE
S
S
MAIN GAS LINE
M M
ToBurner
GasSupply
11
10
97
12138
14 15
FLOW
FLOW
Figure A1-15 Model CB-LE Gas Train Components
BOILER
HP
MODEL CB
SUPPLYANDRE-
TURNCONN SIZES
(IN)(NPT)
A(IN)
RECOMMENDED OIL LINEA
SIZES(STANDARD PIPE)
(IN - IPS)
STOR-AGE
TANK TOBOILER
OR PUMPCONNECT
PUMPTO
BOILER
RE-TURN
LINE TOTANK
125150 200
34 12-12 1 1 1
250300350
34 34 1 1 1
400500600
34 11-34 1 1 1
700800
1 11-34 1 1 1
NOTE See No 2 Oil Line Sizing Instruction for systems with other conditions A For suction line condition with a maximum of 10 Feet of lift and a
total of 100 feet of suction line
Figure A1-16 No2 Oil Connection Size Location and Recommended Line Sizes
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
37
Figure A1-17 No 2 Oil Piping Single Boiler
Installation Remote Oil Pump
Figure A1-18 No 2 Oil Piping Multiple Boiler
Installation Remote Oil Pumps
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
38
Figure A1-19 No 2 Oil Piping Multiple Boiler
Installation
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
39
Figure A1-20 No 2 Oil Piping Typical Arrangement
Table A1-24 Model CB-LE Blowdown
Tank Sizing
BOILER HP WATER (GAL)
125 97
150 118
200 145
250 146
300 176
350 210
400 177
500 209
600 250
700 800 296
NOTE Quantity of water removed from boiler by lowering normal water line 4
BOILER
HP
HEATING SURFACE (SQ-FT)
FIRESIDE WATERSIDE
125 625 679
150 750 820
200 1000 1092
250 1250 1346
300 1500 1623
350 1750 1932
400 2000 2151
500 2500 2691
600 3000 3262
700 800 3500 3810
Table A1-25 Heating Surface Model CB-LE
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Model CBLE 125-800 HP Boilers
40
BOILER HPSTEAM VOLUME CU-FT
STEAM DISENGAGING AREASQ-IN
HIGH PRESSUREA LOW PRESSUREB HIGH PRESSUREA LOW PRESSUREB
125 254 366 5371 5887
150 307 443 6511 7138
200 377 544 7985 8752
250 492 706 7980 8695
300 595 853 9651 10516
350 709 1017 11507 12538
400 721 979 9793 10593
500 837 1137 11376 12303
600 1015 1378 13787 14911
700-800 1198 1627 16273 17600
NOTE Based on normal water levelA Based on 150 psig design pressureB Based on 15 psig design pressure
Table A1-26 Steam Volume and Disengaging Area
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Model CBLE 125-800 HP Boilers
41
BOILERHP
BOILERCAPACITY(LBSHR)
OPERATING PRESSURES (PSIG)
50 75 100 125 150 175 200 250
100 3450
2-12 2-12 NA NA NA NA NA NA
125 4313 3 2-12 2-12 2-12 NA NA NA NA
150 5175 3 3 2-12 2-12 2-12 2-12 NA NA
200 6900 3 3 3 3 3 2-12 2-12 2-12
250 8625 4 3 3 3 3 3 3 3
300 10350 4 4 4 3 3 3 3 3
350 12025 4 4 4 4 4 3 3 3
400 13800 5 4 4 4 4 4 4 3
500 17210 6 5 5 4 4 4 4 4
600 20700 6 6 5 5 5 4 4 4
700 24150 6 6 6 5 5 5 5 4
800 27600 6 6 6 6 6 5 5 5
NOTE Valve sizes (300 Flanges) given in inchesStandard Non-Return valve selections limited to a maximum 2 to 1 turndown(50 of full load) selections based on typical non-return valve sizing recommen-dations For final valve selection contact your C-B authorized representative Forhigh turndown applications see Boiler Book Section I3 Table I3-3 Indicates pressure drop of less than 75 psig All other selections are less than6 psig pressure drop
Boiler HP
OPERATINGPRESSURE
PSIG125 150 200 250 300 350 400 500 600 700 800
15 8 8 10 10 12 12 12 12 12 12 12
30 6 6 8 8 8 10 10 10 12 12 12
40 6 6 6 8 8 8 10 10 10 12 12
50 6 6 6 6 8 8 8 10 10 10 12
75 4 4 6 6 6 8 8 8 8 10 10
100 4 4 6 6 6 6 6 8 8 8 10
125 4 4 4 6 6 6 6 8 8 8 8
150 3 3 4 4 6 6 6 6 6 8 8
200 25 3 4 4 4 4 6 6 6 6 6
250 25 3 3 4 4 4 4 6 6 6 6
NOTES1 Steam nozzle sizes given in inches2 Recommended steam nozzle sizes based on 4000 to 5000 fpm steam velocity3 All standard steam nozzle sizes for 150 psig design pressure or greater are the sameas 125 psig operating pressure on the above table To increase or decrease the standardsize request the change with your local Cleaver-Brooks authorized representative4 Shaded area denotes special surge load baffles must be installed to avoid possible wa-ter carry-over5 For incremental operating pressures see Table I3-1 Steam Systems Fundamentals
Table A1-28 Recommended Steam Nozzle Size (for
4000 to 5000 fpm nozzle velocity)
Table A1-29 Recommended Non-Return Valve Size
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Model CBLE 125-800 HP Boilers
42
1 Shortest boiler room length (Dwg A) is obtained by allowing for possible future tube replacement (from front or rearof boiler) through a window or doorway Allowance is only made for minimum door swing at each end of the boilerThis arrangement provides sufficient aisle space at the front of the boiler but a ldquotightrdquo space condition at the rear
If space permits approximately 15 additional feet should be allowed at the rear for additional aisle and workingspace
2 Next shortest boiler room length (Dwg B) is obtained by allowing for possible future tube replacement from thefront of the boiler Allowance is only made for minimum door swing at the rear
If space permits approximately 15 additional feet should be allowed at the rear for additional aisle and workingspace
3 A slightly longer boiler room (Dwg C) is obtained by allowing for possible future tube replacement from the rear ofthe boiler Allowance for door swing at the front provides sufficient aisle and working space at the front
Figure A1-21 Boiler Room Length (Typical Layouts)
BOILER HP 125-200 250-350 400-800
Dimension A 82 93 102
Dimension B 115 141 171
NOTES1 Recommended Minimum Distance Between Boiler and Wall Dimen-
sion ldquoArdquo allows for a ldquoclearrdquo 42 aisle between the water col-umn on the boiler and the wall If space permits this aisle
should be widened 2 Recommended Minimum Distance Between BoilersDimension ldquoBrdquo between boilers allows for a ldquoclearrdquo aisle of42 - 125 -200 hp48 - 250-350 hp60 - 400-800 hpIf space permits this aisle should be widened
Figure A1-22 Boiler Room Width (Typical Layout)
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
6
A
B
C D
E
F
G
H I J
KL
M Y
N
O
P Q
R S
T
UV
W
X
Y AA
BB CC DD EE
GG
HH
HH
JJ
GG
GG
JJ
KK
FF FARSIDE
Table A1-3 Model CB-LE Steam Boiler Dimensions
60rdquo (15 - 150 psig Design Pressure) - Sheet 1 of 2
(measurements shown in inches)
Description DIMBoiler HP
125 150 200
LENGTHS
Length Overall A 173 1965 2285
Shell B 125 149 180
Front Head Extension C 28 28 29
Front Ring Flange to Nozzle - 15 D 88 90 96
Front Ring Flange to Nozzle - 150 D 84 84 96
Rear Head Extension E 195 195 195
Front Ring Flange to Panel G 17 17 17Ring Flange to Base H 05 05 05
Base Frame I 112 136 167
Rear Flange Ring to Base J 125 125 125
HEIGHTS
Ht Overall K 87 87 87
Base to Vent Outlet L 87 87 87
Base to Boiler Centerline M 46 46 46
Base to Gas Train N 6 85 85
Figure A1-1 CB-LE Steam - 125-200 HP
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Model CBLE 125-800 HP Boilers
7
Description DIM Boiler HP
125 150 200
HEIGHTS (continued)
Base to Panel Top T 75 75 77Base to Panel Bottom U 15 15 17
Height of Base V 12 12 12
Base to Steam Nozzle Y 8238 8238 8238
WIDTHS
Width Overall O 8988 89875 905
Center to ALWCO P 3875 3875 3875
Center to Outside Control Panel Q 485 485 485
Center to Lagging R 33 33 33
Center to WC S 445 45 45
Base Inside W 445 445 445
Base Outside X 525 525 525
Boiler ID F 60 60 60
CONNECTIONSElectric - Main Power Supply AA 460 3 60 460 3 60 460 3 60
Surface Blowoff (with collector pipe) BB 1 1 1
Steam Outlet 15 (150 Flange) CC 8 8 10
Steam Outlet 150 (300 Flange) CC 4 4 4
Chemical Feed FF 1 1 1
Feed Water (2) GG 15 15 2
Blowdown (2) 150 HH 15 15 15
Drain (2) 15 HH 15 15 2
Water Column Blowdown JJ 075 075 075
Gauge Glass Blowdown KK 025 025 025
VENT STACK
Diameter (OD) (flgd connection) 16 16 16
CLEARANCES
Rear Door Swing (Davited) 32 32 32
Front Door Swing 67 67 67
Tube Removal Rear 115 139 170
Tube Removal Front 103 127 158
MINIMUM BOILER ROOM LENGTH ALLOWING FOR DOOR SWING AND TUBE REMOVAL
From Rear of Boiler 307 355 417
From Front of Boiler 260 308 370
Through Window or Doorway 224 248 279
WEIGHT IN LBS
Normal Water Capacity 5750 7250 8625
Approx Ship Wt 15 psig 11300 12600 14600
Approx Ship Wt 150 psig 12400 13500 15600
Approx Ship Wt 200 psig 13000 14200 16400
Table A1-3 Model CB-LE Steam Boiler Dimensions 60rdquo (15 - 150 psig Design Pressure) - Sheet 2 of 2
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 843
Model CBLE 125-800 HP Boilers
8
A
BC
D
E
F
G
H I J
K
L
M
N
O
P QR S
T
UV
W
X
Y
AA
BBCC
DD
EE
FF
GG
HH
HH
JJ
JJ
KK
GG
GG
Y
FARSIDE
(measurements shown in inches)
Description DIM
Boiler HP
250 300 350
LENGTHS
Length Overall A 1915 220 250
Shell B 144 171 201
Front Head Extension C 235 25 25
Front Ring Flange to Nozzle - 15 D 90 98 112
Front Ring Flange to Nozzle - 150 D 88 98 112
Rear Head Extension E 24 24 24
Front Ring Flange to Panel G 17 23 23
Ring Flange to Base H 05 05 05
Base Frame I 131 158 188
Rear Flange Ring to Base J 125 125 125
HEIGHTS
Ht Overall K 115 115 115
Base to Vent Outlet L 106 106 106Base to Boiler Centerline M 56 56 56
Base to Gas Train N 10 10 10
Base to Panel Top T 77 77 77
Base to Panel Bottom U 17 17 17
Height of Base V 12 12 12
Base to Steam Nozzle Y 10150 10150 10150
Table A1-4 Model CB-LE Steam Boiler Dimensions
78rdquo (15 - 150 psig Design Pressure) - Sheet 1 of 2
Figure A1-2 CB-LE Steam - 250-350 HP
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 943
Model CBLE 125-800 HP Boilers
9
Description DIM Boiler HP
250 300 350
WIDTHS
Width Overall O 1065 1065 10875Center to ALWCO P 485 485 485
Center to Outside Control Panel Q 58 58 58
Center to Lagging R 42 42 42
Center to WC S 5375 5375 5375
Base Inside W 56 56 56
Base Outside X 64 64 64
Boiler ID F 78 78 78
CONNECTIONS
Electric - Main Power Supply AA 460 3 60 460 3 60 460 3 60
Surface Blowoff (with collector pipe) BB 1 1 1
Steam Outlet 15 (150 Flange) CC 12 12 12
Steam Outlet 150 (300 Flange) CC 6 6 6
Chemical Feed FF 1 1 1
Feed Water (2) GG 2 2 25Blowdown (2) 150 HH 15 15 15
Drain (2) 15 HH 2 2 2
Water Column Blowdown JJ 075 075 075
Gauge Glass Blowdown KK 025 025 025
VENT STACK
Diameter (OD) (flgd connection) 20 20 20
CLEARANCES
Rear Door Swing 43 43 43
Front Door Swing 89 89 89
Tube Removal Rear 131 157 187
Tube Removal Front 116 142 172
MINIMUM BOILER ROOM LENGTH ALLOWING FOR DOOR SWING AND TUBE REMOVAL
From Rear of Boiler 364 417 477
From Front of Boiler 303 356 416
Through Window or Doorway 275 302 332
WEIGHT IN LBS
Normal Water Capacity 10670 13000 15465
Approx Ship Wt 15 psig 21500 23600 26800
Approx Ship Wt 150 psig 22800 25200 27800
Approx Ship Wt 200 psig 24600 27200 29300
Table A1-4 Model CB-LE Steam Boiler Dimensions 78rdquo (15 - 150 psig Design Pressure) - Sheet 2 of 2
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 1043
Model CBLE 125-800 HP Boilers
10
A
BC
D
E
F
G
HI J
K
AA
BB CC
DD
EE
FF
JJ
GG
HH HH
L
M
N
O
P Q
R S
T
UV
W
X
Y
JJ
JJ
KK
GGGG
Y
FARSIDE
Table A1-5 Model CB-LE Steam Boiler Dimensions
96rdquo (15 - 150 psig Design Pressure) - Sheet 1 of 2
(measurements shown in inches)
Description DIMBoiler HP
400 500 600 700 800
LENGTHS
Length Overall A 20575 22775 25975 29875 29875
Shell B 14675 1675 19975 23275 23275
Front Head Extension C 27 28 28 34 34
Front Ring Flange to Nozzle - 15 D 98 101 96 112 112
Front Ring Flange to Nozzle - 150 D 96 100 96 112 112
Rear Head Extension E 32 32 32 32 32
Front Ring Flange to Panel G 26 26 26 26 26
Ring Flange to Base H 05 05 05 05 05
Base Frame I 13375 15475 18675 21975 21975
Rear Flange Ring to Base J 125 125 125 125 125
Figure A1-3 CB-LE Steam - 400-800 HP
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 1143
Model CBLE 125-800 HP Boilers
11
Description DIM Boiler HP
400 500 600 700 800
HEIGHTS
Ht Overall K 134 134 134 134 134Base to Vent Outlet L 126 126 126 126 126
Base to Boiler Centerline M 67 67 67 67 67
Base to Gas Train N 12 12 12 12 12
Base to Panel Top T 75 75 75 75 75
Base to Panel Bottom U 15 15 15 15 15
Height of Base V 12 12 12 12 12
Base to Steam Nozzle Y 1215 1235 1215 121 121
WIDTHS
Width Overall O 124 12425 124 124 124
Center to ALWCO P 575 575 575 575 575
Center to Outside Control Panel Q 665 665 665 665 665
Center to Lagging R 51 51 51 51 51
Center to WC S 63 63 63 63 63
Base Inside W 5888 5888 5888 5888 5888
Base Outside X 7188 7188 7188 7188 7188
Boiler ID F 96 96 96 96 96
CONNECTIONS
Electric - Main Power Supply AA 460 3 60 460 3 60 460 3 60 460 3 60 460 3 60
Surface Blowoff (with collector pipe) BB 1 1 1 1 1
Steam Outlet 15 (150 Flange) CC 12 12 12 12 12
Steam Outlet 150 (300 Flange) CC 6 8 8 8 8
Chemical Feed FF 1 1 1 1 1
Feed Water (2) GG 25 25 25 25 25
BlowdownDrain (2) HH 2 2 2 2 2
Water Column Blowdown JJ 075 075 075 075 075
Gauge Glass Blowdown KK 025 025 025 025 025
VENT STACK
Diameter (OD) (flgd connection) 24 24 24 24 24
CLEARANCES
Rear Door Swing 53 53 53 53 53Front Door Swing 108 108 108 108 108Tube Removal Rear 131 152 184 217 217
Tube Removal Front 114 135 167 200 200
MINIMUM BOILER ROOM LENGTH ALLOWING FOR DOOR SWING AND TUBE REMOVAL
From Rear of Boiler 386 428 492 558 558
From Front of Boiler 314 356 420 486 486
Through Window or Doorway 308 329 361 394 394
WEIGHT IN LBS
Normal Water Capacity 14810 15950 19270 23000 23000
Approx Ship Wt 15 psig 33500 37110 42300 49500 49600 Approx Ship Wt 150 psig 36570 39970 45025 52050 52150
Approx Ship Wt 200 psig 39680 43580 49400 57315 57415
Table A1-5 Model CB-LE Steam Boiler Dimensions
96rdquo (15 - 150 psig Design Pressure) - Sheet 2 of 2
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 1243
Model CBLE 125-800 HP Boilers
12
BOILER HP DIM 125 150 200
LENGTHS
Overall (60 ppm System) A 171-12 196-12 228-12
Shell B 125 149 180
Base Frame C 112 136 167
Front Head Extension (60 ppm System) D 27 28 29
Rear Head Extension E 19-12 19-12 19-12
Front Ring Flange to Outlet HH 114 136 167
Front Ring Flange to Return H 89 102 131
Ring Flange to Base F 12 12 12
Over Tubesheets V 113 137 168
Shell Extension P 12 12 12
Rear Flange Ring to Base G 12-12 12-12 12-12
Table A1-6 Model CB-LE Hot Water Boiler Dimensions
60rdquo (30 and 125 psig Design Pressure) - Sheet 1 of 2
Figure A1-4 CB-LE Hot Water - 125-200 HP
R
F G
WW
P
BB
D E
GG
Q
Z
Y T U
RR - RF - RD
X
HH
A
B
HI
L K
OO O
KK
M
N
EE
FF
DD
V
J
C
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 1343
Model CBLE 125-800 HP Boilers
13
BOILER HP DIM 125 150 200
WIDTHS
Overall I 75-12 75-12 75-12
ID Boiler J 60 60 60
Center to Entrance Box K 42-12 42-12 42-12
Center to Outside Hinge KK 35 35 35
Center to Lagging L 33 33 33
Base Outside M 52-12 52-12 52-12
Base Inside N 44-12 44-12 44-12
HEIGHTS
Overall OO 87 87 87
Base to Vent Outlet O 87 87 87
Base to Return and Outlet X 82-38 82-38 82-38
Height of Base Q 12 12 12
Base to Bottom of Boiler R 16 16 16
BOILER CONNECTION
Auxiliary Connection Z 1 1 1
Water Return Flange T 6A 6A 6A
Water Outlet Flange (2 Dip Tube Included) U 6A 6A 6A
Drain Front and Rear W 1-12 1-12 2
Air Vent Y 1-12 1-12 1-12
VENT STACK
Diameter (flgd connection) BB 16 16 16
MINIMUM CLEARANCES
Rear Door Swing DD 32 32 32
Front Door Swing EE 67 67 67
Tube Removal Rear FF 115 139 170Tube Removal Front GG 103 127 158
MINIMUM BOILER ROOM LENGTH ALLOWING FOR DOOR SWING AND TUBE REMOVAL FROM
Rear of Boiler RR 307 355 417
Front of Boiler RF 260 308 370
Thru Window or Doorway RD 224 248 279
WEIGHT IN LBS
Water Capacity Flooded 7670 9295 11130
Approx Ship Wgt ndash 30 psigApprox Ship Wgt ndash 125 psig
1140011800
1250012900
1450014900
NOTES All connections are threaded unless indicatedA ANSI 150 psig flange
Table A1-6 Model CB-LE Hot Water Boiler Dimensions
60rdquo (30 and 125 psig Design Pressure) - Sheet 2 of 2
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 1443
Model CBLE 125-800 HP Boilers
14
BOILER HP DIM 250 300 350
LENGTHS
Overall (60 ppm System) A 191-12 220 252
Shell B 144 171 201
Base Frame C 131 158 188
Front Head Extension (60 ppm System) D 23-12 25 27
Rear Head Extension E 24 24 24
Front Ring Flange to Return H 103-12 130 160
Front Ring Flange to Outlet HH 131 158 188
Ring Flange to Base F 12 12 12
Over Tubesheets V 129 156 186
Shell Extension P 15 15 15
Rear Flange Ring to Base G 12-12 12-12 12-12
Table A1-7 Model CB-LE Hot Water Boiler Dimensions78rdquo (30 and 125 psig Design Pressure) - Sheet 1 of 2
Figure A1-5 CB-LE Hot Water 250-350 HP
s k o o r B r e v a
e l C
R
F G
WW
P
BB
D E
GG
Q
Z
Y T U
RR - RF - RD
X
HH
A
B
HI
L K
OOO
KK
M
N
EE
FF
DD
V
J
C
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 1543
Model CBLE 125-800 HP Boilers
15
BOILER HP DIM 250 300 350
WIDTHS
Overall I 93 93 93
ID Boiler J 78 78 78
Center to Entrance Box K 51 51 51
Center to Outside Hinge KK 51 51 51
Center to Lagging L 42 42 42
Base Outside M 64 64 64
Base Inside N 52 52 52
HEIGHTS
Overall OO 115 115 115
Base to Vent Outlet O 106 106 106
Base to Return and Outlet X 101-12 101-12 101-12
Height of Base Q 10 10 10
Base to Bottom of Boiler R 17 17 17
BOILER CONNECTION
Auxiliary Connection Z 1-14 1-14 1-14
Water Return Flange (2 Dip Tube included) T 8A 8A 8A
Water Outlet Flange (2 Dip Tube Included) U 8A 8A 8A
Air Vent Y 1-12 1-12 1-12
Drain Front and Rear W 2 2 2
VENT STACK
Diameter (flgd connection) BB 20 20 20
MINIMUM CLEARANCES
Rear Door Swing DD 43 43 43
Front Door Swing EE 89 89 89
Tube Removal Rear FF 131 157 187
Tube Removal Front GG 116 142 172
MINIMUM BOILER ROOM LENGTH ALLOWING FOR DOOR SWING AND TUBE REMOVAL FROM
Rear of Boiler RR 364 417 477
Front of Boiler RF 303 356 416
Thru Window or Doorway RD 275 302 332
WEIGHT IN LBS
Water Capacity Flooded 13880 16840 20090
Approx Ship Wgt ndash 30 psigApprox Ship Wgt ndash 125 psig
2140022200
2350024300
2670027500
NOTES All connections are threaded unless indictedA ANSI 150 psig flange
Table A1-7 Model CB-LE Hot Water Boiler Dimensions
78rdquo (30 and 125 psig Design Pressure) - Sheet 2 of 2
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 1643
Model CBLE 125-800 HP Boilers
16
BOILER HP DIM 400 500 600 700 800
LENGTHS
Overall (60 ppm System) A 206 228 262 299 300
Shell B 147 168 200 233 233
Base Frame C 134 155 187 220 220
Front Head Extension (60 ppm System) D 27 28 30 34 35
Rear Head Extension E 32 32 32 32 32
Shell Ring Flange to Base F 12 12 12 12 12
Rear Ring Flange to Base G 12-12 12-12 12-12 12-12 12-12
Shell Flange to Outlet HH 139-12 156-12 182-12 216-12 216-12
Shell Flange to Return H 107 125 151-12 185 185
Over Tubesheets V 130 151 183 216 216
Shell Extension P 17 17 17 17 17
Table A1-8 Model CB-LE Hot Water Boiler Dimensions96rdquo (30 and 125 psig Design Pressure) - Sheet 1 of 2
Figure A1-6 CB-LE Hot Water 400-800 HP
s k o o r B r e v a
e l C
R
F G
WW
P
BB
D E
GG
Q
Z
Y T U
RR - RF - RD
X
HH
A
B
HI
L K
OOO
KK
M
N
EE
FF
DD
V
J
C
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 1743
Model CBLE 125-800 HP Boilers
17
WIDTHS
Overall I 113 113 113 113 115
ID Boiler J 96 96 96 96 96
Center to Entrance Box K 62 62 62 62 64
Center to Outside Hinge KK 62 62 62 62 62
Center to Lagging L 51 51 51 51 51
Base Outside M 72 72 72 72 72
Base Inside N 56 56 56 56 56
HEIGHTS
Overall OO 134 134 134 134 134
Base to Vent Outlet O 126 126 126 126 126
Height of Base Q 12 12 12 12 12
Base to Bottom of Boiler R 19 19 19 19 19
Base to Return and Outlet X 121-916 121-916 121-916 121-916 121-916
BOILER CONNECTIONS
Auxiliary Connection Z 1-14 1-14 1-14 1-14 1-14
Drain Front and Rear W 2 2 2 2 2
Water Return T 10A 10A 12A 12A 12A
Water Outlet (2rdquo Dip Tube Included) U 10A 10A 12A 12A 12A
Air Vent Y 2 2 2 2 2
VENT STACK
Diameter (Flanged Connection) BB 24 24 24 24 24
MINIMUM CLEARANCES
Rear Door Swing DD 53 53 53 53 53
Front Door Swing EE 108 108 108 108 108
Tube Removal Rear FF 131 152 184 217 217
Tube Removal Front GG 114 135 167 200 200
MINIMUM BOILER ROOM LENGTH ALLOWING FOR DOOR SWING AND TUBE REMOVAL FROM
Rear of Boiler RR 386 428 492 558 558
Front of Boiler RF 314 356 420 486 486
Thru Window or Doorway RD 308 329 361 394 394
WEIGHT IN LBS
Normal Water Capacity 20015 23300 28260 33360 33360
Approx Ship Wgt ndash 30 psig
Approx Ship Wgt ndash 125 psig
33300
37270
36900
40780
42150
46005
49650
53300
49750
53400
NOTES All connections are threaded unless indicated
A ANSI 150 psig flange
BOILER HP DIM 400 500 600 700 800
Table A1-8 Model CB-LE Hot Water Boiler Dimensions
96rdquo (30 and 125 psig Design Pressure) - Sheet 2 of 2
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
18
BOILER HP
MOTOR HP
60PPM
30PPM
25PPM
20PPM
125 5 10 5 10
150 75 10 10 10
200 15 15 20 NA
250 75 10 15 15
300 10 15 20 30
350 15 25 40 40
400 10 15 20 20
500 15 20 25 30
600 25 30 50 60
700 30 50 75 75
800 50 75 NA NA
NOTES For elevations above 700rsquo - contact your local
Cleaver-Brooks authorized representative
Table A1-9 Model CB-LE Blower Motor Selection -
Operating Pressures 150 psig and Less and All Hot
Water Boilers
BOILER HP
MOTOR HP
60
PPM
30
PPM
25
PPM
20
PPM
125 5 10 10 10
150 10 10 10 15
200 15 20 20 NA
250 75 10 15 20
300 10 20 30 40
350 20 30 40 50
400 10 15 20 25
500 20 25 30 40
600 25 40 60 60
700 40 60 75B 75C
800 60 75A NA NA
NOTES For elevation above 700rsquo - contact your local
Cleaver-Brooks authorized representative
A Downrate to 770 hp
B Downrate to 675 hp
C Downrate to 660 hp
Table A1-10 Model CB-LE Blower Motor Selection -
Operating Pressures Greater than 150 psig (Steam
Boilers)
09-09
Table A1-11 Blower Motor Selection CB-LE NTI BoilersTable A1-12 Turndown Guarantee for CB-LE NTI
Boilers - Natural Gas amp 2 Oil
Boiler SizeTurndown
9 ppm 15 ppm
125 41 41
150 41 51
200 41 51
250 51 51
300 51 51
350 51 51
400 51 61
500 51 61
600 61 61
700 71 71
800 71 71
800 HP to be derated to 720 HP for 9 ppm and 750 HP
for 15 ppm
Altitude 700 ft and less - Design Pressure 150 psi and less
800 HP - to be de-rated to 720 HP for 9 ppm and to 750 HP for 15 ppm
mpp9mpp51Nominal
Boiler Size Blower Motor HP Blower Motor HP
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
19
BOILER HPFUEL
SERIES
HOT WATER STEAM
30 PSIG 125 PSIG 15 PSIG 150 PSIG 200 PSIG
125100 11200 11600 11300 12000 12600200 11400 11800 11500 12400 13000
700 11300 11700 11400 12300 12900
150
100 12300 12700 12400 13200 13900
200 12500 12900 12600 13500 14200
700 12300 12700 12400 13300 14000
200
100 14400 14800 14500 15500 16300
200 14500 14900 14600 15600 16400
700 14500 14900 14600 15600 16400
250
100 20700 21500 20800 22000 23800
200 21400 22200 21500 22800 24600
700 20900 21700 21000 22500 24300
300
100 23100 23900 23200 24800 26800
200 23500 24300 23600 25200 27200
700 23400 24200 23500 25000 27000
350
100 26200 27000 26300 27600 29100
200 26700 27500 26800 27800 29300
700 26400 27200 26500 27700 29200
400
100 33000 36970 33200 36270 39380
200 33300 37270 33500 36570 39680
700 33200 37170 33400 36470 39580
500
100 36600 40470 36810 39670 43480
200 36900 40780 37110 39970 43580
700 36800 40680 37010 39870 43280
600
100 41850 45905 42000 44725 49100
200 42150 46005 42300 45025 49400
700 42050 45915 42200 44925 49300
700800
100 49450 53000 49300 51850 57015
200 49750 53300 49600 52150 57315
700 49650 53200 49500 52050 57215
NOTES1 Weights shown are based on standard product offering for current listed boilers If units are of special design and construction actual weightwill be determined at time of shipment Shipment will then be made on shippers weight and count All weights are in US pounds
Table A1-13 Model CB-LE Boiler Weights
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Model CBLE 125-800 HP Boilers
20
VALVE
SETTING15 PSIG STEAM 100 PSIG STEAM 125 PSIG STEAM 150 PSIG STEAM 200 PSIG STEAM 250 PSIG STEAM 300 PSIG STEAM
BOILERHP
NO OF
VALVES-REQD
OUTLET
SIZE(IN)
NO OF
VALVES-REQD
OUTLET
SIZE(IN)
NO OF
VALVESREQD
OUTLET
SIZE(IN)
NO OF
VALVES-REQD
OUTLET
SIZE(IN)
NO OF
VALVES-REQD
OUTLET
SIZE(IN)
NO OF
VALVESREQD
OUTLET
SIZE(IN)
NO OF
VALVESREQD
OUTLET
SIZE(IN)
125 1 3 2 1-12 2(1) 1-12(1) 1-14
2(1) 1-12(1) 1-14
2(1) 1-14(1) 1
2 1 2 1
150 1 3 2(1) 2(1) 1-12
2 1-14 2(1) 1-12(1) 1-14
2(1) 1(1) 1-14
2 1 2 1
200 2 2-12 2 2 2 1-12 2 1-12 2(1) 1-12(1) 1-14
2 1-14 2(1) 1(1) 1-14
250 2(1) 2-12(1) 3
2(1) 2-12(1) 2
2(1)2(1)1-12
2(1) 2(1) 1-12
2(1)1-12(1)1-14
2(1) 1-12(1) 1-14
2 1-14
300 2 3 2(1) 2-12(1) 2
2 2 2(1) 2(1) 1-12
2 1-12 2(1)1-12(1)1-14
2(1) 1-12(1) 1-14
350 3(1) 2(2) 3
3(1) 2-12(2) 2
2(1)2(1)1-12
2 2 2(1) 1-12(1) 2
2 1-12 2(1) 1-12(1) 1-14
400 3(2) 3(1) 2-12
3(1) 2(2) 2-12
2(1)2(1)2-12
2(1) 2-12(1) 2
2(1) 1-12(1) 2
2(1) 2(1) 1-12
2 1-12
500 3 (3) 3 3 2-12 2 2-12 2(1) 2-12(1) 2
2(1) 2(1) 2-12
2(1) 2(1)1-12
2(1) 1-12(1) 2
600 4 3 4(3) 2-12(1) 2
3 2-12 2 2-12 2(1) 2(1) 2-12
2 2 2 2
700 5(3) 3(2) 2-12
5(3) 2-12(2) 2
3 2-12 3(2) 2-12(1) 2
2 2-12 2(1) 2(1) 2-12
2 2
800 5(3) 3(2) 2-12
5(3) 2-12(2) 2
4(3) 2-12(1) 2
3(2) 2-12(1) 2
2 2-12 2(1) 2(1) 2-12
2(1) 2(1) 2-12
NOTES Valve manufacturers are Kunkle Consolidated or Conbraco depending on availability This table revised 042012
Table A1-14 Steam Boiler Safety Valve Openings
VALVE
SETTING 30 PSIG HW 60 PSIG HW 100 PSIG HW 125 PSIG HW
BOILER HPNO OF
VALVESREQD
OUTLETSIZE(IN)
NO OFVALVESREQD
OUTLETSIZE(IN)
NO OFVALVESREQD
OUTLETSIZE(IN)
NO OFVALVESREQD
OUTLETSIZE(IN)
125 1 2-12 1 2 1 2 1 1-14
150 1 2-12 1 2-12 1 2 1 2
200 2(1) 2-12(1) 1-14
1 2-12 1 2 1 2
250 2 (1) 2(1) 2-12
1 2-12 1 2-12 1 2
300 2 2-12 2(1) 1(1) 2-12
1 2-12 1 2-12
350 3(2) 2-12(1) 1
2(1) 2-12(1) 2
1 2-12 1 2-12
400 3 (1) 2(2) 2-12 2 (1) 2(2) 2-12 2 (1) 1(1) 2-12 1 2-12
500 4 (1) 1(3) 2-12
2 2-12 2(1) 2-12(1) 1-14
2(1) 1(1) 2-12
600 4(3) 2-12(1) 2
3(1) 1-1(2) 2-12
2(1) 2(1) 2-12
2(1) 2-12(1) 1-14
700 amp 800 5 (1) 1(4) 2-12
3(1) 2(2) 2-12
2 2-12 2(1) 2-12(1) 2
NOTES Hot water relief valves are Kunkle 537
Table A1-15 Hot Water Boiler Relief Valve Openings
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
21
BOILER HP A B C D E F G X1 X2 X3
125 6 9 112 39-12 57-12 4 44-12 10 9-34 22-12
150 6 9 136 39-12 57-12 4 44-12 10 9-34 22-12
200 6 9 167 39-12 57-12 4 44-12 10 9-34 22-12
250 6 12 131 46 70 4 56 10 22 22-12
300 6 12 158 46 70 4 56 10 22 22-12
350 6 12 188 46 70 4 56 10 22 22-12
NOTE
All numbers in table are in inches
6-inch high mounting piers recommended for use beneath the boiler base frame The use of these piers provides increased inspection
accessibility to the piping beneath the boiler and added height for washing down the area beneath the boiler
Figure A1-7 Space Required to Open Rear Head on Model CB-LE Boilers Equipped with Davits
BOILER HPDIMENSIONS (INCHES)
A B C D E
CB-125 THRU CB-200 33 55 45 68 32
CB-250 THRU CB-350 42 69 58 86 43
CB-400 THRU CB-800 51 88 71 109 53
Figure A1-8 Model CB-LE Boiler Mounting Piers (60rdquo and 78rdquo)
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
22
BOILER HP A B C D E F G
400 6 14 134 50 78 6-12 58-78
500 6 14 155 50 78 6-12 58-78
600 6 14 187 50 78 6-12 58-78
700-800 6 14 220 50 78 6-12 58-78
NOTE1 All numbers in table are in inches2 6-inch high mounting piers recommended for use beneath the boiler base frame The use of these piers provides in-
creased inspection accessibility to the piping beneath the boiler and added height for washing down the area beneaththe boiler
Figure A1-9 Model CB-LE Boiler Mounting Piers (96rdquo)
CBLE 250-350HP
CBLE 400-800HP
Motor HP Hole Number
75 1
15 1
25 2
40 3
Motor HP Hole Number
10 1
20 1
30 250 2
75 3
Figure A1-10 Front Davit Support
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
23
BOILERHP
VIEW
ALL DIMENSIONS IN INCHES
A B C D E
125 All B 80-14 29-34 70-12 10 3
150 All B 80-14 29-34 83-12 10 3
200 All B 80-14 29-34 114-12 10 3
250Steam B 99 36 72 10 3
Hot Water B 99 36 81 10 3
300
Steam B 99 36 99 10 3
Hot Water B 99 36 108 10 3
350Steam B 99 36 129 10 3
Hot Water B 99 36 138 10 3
400Steam B 119 35-34 78 11 3
Hot Water B 119 35-34 78 11 3
500Steam B 119 35-34 99 11 3
Hot Water B 119 35-34 99 11 3
600Steam B 119 35-34 131 11 3
Hot Water B 119 35-34 131 11 3
700 amp 800Steam B 119 35-34 164 11 3
Hot Water B 119 35-34 164 11 3
NOTE A B and C dimensions may vary by 12 inch
Figure A1-11 Lifting Lug Location Model CB-LE Boilers
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 2443
Model CBLE 125-800 HP Boilers
24
PERFORMANCE DATA
The Low Emission Option provides NOx reduction at current published andpredicted fuel-to-steam efficiencies
Specifying BoilerEfficiency
Cleaver-Brooks offers an industry leading fuel-to-steam boiler efficiency guaranteefor Model CB-LE Firetube Boilers The guarantee is based on the fuel-to-steam
efficiencies shown in the efficiency tables and the following conditions Theefficiency percent number is only meaningful if the specific conditions of theefficiency calculations are clearly stated in the specification (see Cleaver-Brookspublication CB-7768 for a detailed description of efficiency calculations)
When specifying the efficiencies in the tables be sure to include the specificguarantee conditions to maximize the effectiveness of your efficiency specification Ifyou have any questions regarding the efficiency specifications please contact yourlocal Cleaver-Brooks authorized representative
EfficiencySpecification
The boiler manufacturer shall guarantee that at the time of startup the boiler willachieve fuel-to-steam efficiency (as shown in Table A1-16 and Table A1-17) at100 firing rate (add efficiency guarantees at 25 50 and 75 of rating if
required) If the boiler(s) fail to achieve the corresponding guaranteed efficiency aspublished the boiler manufacturer will rebate to the ultimate boiler owner tenthousand dollars ($10000) for every full efficiency point (10) that the actualefficiency is below the guaranteed level
The specified boiler efficiency is based on the following conditions
1 Fuel specification used to determine boiler efficiency
bull Natural Gas
Carbon (wt) = 6998Hydrogen (wt) = 2231Sulfur (wt) = 00
Heating value Btulb = 21830bull No 2 Oil
Carbon (wt) = 858Hydrogen (wt) = 127Sulfur (wt) = 02Heating value Btulb = 19420
No 6 Oil
Carbon (wt) = 866Hydrogen (wt) = 109Sulfur (wt) = 209Heating value Btulb = 18830
2 Efficiencies are based on ambient air temperature of 80 degF relative humidity of30 and 15 excess air in the exhaust flue gas
3 Efficiencies are based on manufacturerrsquos published radiation and convectionlosses (For Cleaver-Brooks radiation and convection losses see BoilerEfficiency Facts Guide publication number CB-7767)
4 Any efficiency verification testing will be based on the stack loss method
For efficiencies and stack temperatures at operating pressures not listed followthese procedures
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
25
When the operating steam pressure is between 10 psig and 125 psig interpolatethe values from the efficiency tables
When the operating steam pressure is above 125 psig estimated efficiency can becalculated as follows
Example
Boiler 350 hpFuel natural gas
Operating steam pressure 200 psig
Find the fuel-to-steam efficiency at 100 firing rate From Table A1-16 for a 350hp boiler operating at 100 firing rate and an operating steam pressure of 125psig the efficiency is 825
Using Figure A1-12 note that the stack temperature increases 36 degF at the higheroperating pressure To estimate boiler efficiency use this rule of thumb For every40 degF increase in stack temperature efficiency decreases by 1 Since the stacktemperature rise is 36 degF the decrease in the boiler efficiency at 200 psig operatingpressure is calculated as follows 3640 =9 Therefore the boiler efficiency at200 psig operating pressure is 825 -9 = 816
Emissions The emission data included in this section consists of typical emission levels forModel CB boilers equipped with 60 30 25 and 20 ppm LE Options when firingnatural gas and No 2 oil
Notice
The data in Table A1-18 and Table A1-19 represent typical emission levels only
Guaranteed emission levels are available from your local Cleaver-Brooks authorized
representative
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 2643
Model CBLE 125-800 HP Boilers
26
BOILER
HP
OPERATING PRESSURE = 10 psig OPERATING PRESSURE = 125 psig
OF LOAD OF LOAD
25 50 75 100 25 50 75 100
125 833 836 834 832 804 809 810 810
150 844 846 845 843 815 820 820 821
200 850 853 851 849 822 827 827 827
250 850 847 840 833 820 820 816 813
300 853 853 846 839 826 827 822 819
350 853 857 852 845 826 832 828 825
400 845 847 846 844 818 822 824 822
500 855 857 855 852 828 832 833 831
600 857 860 858 856 829 835 836 835
700 857 862 860 857 830 836 836 836
800 858 861 859 856 831 836 837 835
Table A1-16 Predicted Fuel-to-Steam Efficiencies - Natural Gas
Figure A1-12 Predicted Stack Temperature Increase for Pressure Greater Than 125 psig
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
27
Table A1-18 CB-LE Boilers - Natural Gas Emission Levels
POLLUTANT
ESTIMATED LEVEL
60 ppm 30 ppm 25 ppm 20 ppm 15 ppm 9 ppm
CO ppmA
lbMMBtu
50150B
004011
50150B
004011
50150B
004011
50150B
004011
50
004
50
004
NOx ppmA
lbMMBtu
60
007
30
0035
25
003
20
0024
15
0018
9
0011
SOx ppmA
lbMMBtu
1
0001
1
0001
1
0001
1
0001
1
0001
1
0001
HCVOC5 ppmA
lbMMBtu
10
0004
10
0004
10
0004
10
0004
10
0004
10
0004
PM ppmA
lbMMBtu
-
001
-
001
-
001
-
001
-
001
-
001
A ppm levels are given on a dry volume basis and corrected to 3 oxygen (15 excess air)
B CO emission for 60 30 25 amp 20 ppm system is 50 ppm (004 lbMMBtu) when boiler is operating above 50 of rated capacity
CO emission is 150 ppm (011 lbMMBtu) when boiler is operating below 50 of rated capacity
Table A1-17 Predicted Fuel-to-Steam Efficiencies - No 2 Oil
BOILER
HP
OPERATING PRESSURE = 10 psig OPERATING PRESSURE = 125 psig
OF LOAD OF LOAD
25 50 75 100 25 50 75 100
125 867 869 867 866 837 842 843 843
150 878 880 878 876 848 853 853 854
200 884 887 884 882 856 860 860 860
250 883 881 874 867 853 853 849 847
300 886 887 880 873 859 860 855 852
350 886 890 885 878 859 866 861 858
400 879 881 879 876 851 855 856 855
500 889 890 889 886 861 865 866 864
600 890 894 892 890 862 868 869 868
700 891 895 893 891 863 869 870 869
800 892 895 893 890 864 869 870 868
Table A1-19 CB-LE Boilers - No 2 Oil Emission Levels
POLLUTANTESTIMATED LEVEL
60 ppm LE Option 30 25 20 ppm LE Option 15 ppm 9 ppm
CO ppmA
lbMMBtu
50
0039
50
0039
50
0039
50
0039
NOx ppmA
lbMMBtu140
018690
012085
011370
0093
SOx ppmA
lbMMBtu
278
052
278
052
278
052
278
052
HCVOCs ppmA
lbMMBtu
4
0002
4
0002
4
0002
4
0002
PM ppmA
lbMMBtu
-
0025
-
0025
-
0025
-
0025
A ppm levels are given on a dry volume basis and corrected to 3 oxygen (15 excess air)
BASED ON THE FOLLOWING CONSTITUENT LEVELS
Fuel-bound Nitrogen content = 0015 by weight
Sulfur content = 05 by weight
Ash content = 001 by weight
09-09
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Model CBLE 125-800 HP Boilers
28
ENGINEERING DATA
Sound Level Table A1-20 gives a summary of predicted sound pressure levels for Model CBboilers with 30 ppm LE Options Contact your local Cleaver-Brooks authorizedrepresentative for sound levels or other LE Options
Units - The units for the sound level tables are dbA (decibels measured on the A-weighted scale) in reference to 00002 microbars (20 micro-Newtons per square
meter) Their reference are standardly used in specifying and reporting soundpressure levels on industrial equipment
Test Method - The sound pressure levels in the above tables were obtained fromtests in accordance with the ldquoABMA Test Code for the Measurement of Sound fromPackaged Boilersrdquo In accordance with this code the sound pressure levels reportedwere measured on the boiler centerline 4-12 feet vertically above the bottom of thebase rails and 3 feet horizontally in front of the end of the blower motor or frontsurface of the electrical cabinet
Sound Level Meter - The sound level meter used complies with ANSI S14 Type 1(Precision) The readings are taken with the meter set for slow response andcorrected for background levels
Sound Pressure - The large size boilers the need for auxiliary equipment and thenecessary interconnecting piping make it impractical (and sometimes impossible) toprovide a boiler testing environment which is suitable for taking the data needed todevelop Sound Pressure Power levels
Typical Values - Sound pressure levels (dbA) for the same boiler will vary betweenboiler rooms Sound levels will vary with motor type NOx levels and altitudes Inaddition variations will occur between different people using different sound meterson the same boiler And finally no two boilers can be expected to give precisely thesame sound levels For these reasons we can only predict but not guarantee soundlevels (dbA)
BOILER HP 125 150 200 250 300 350 400 500 600 700 800
HFO dbA 84 84 84 83 84 85 84 85 85 88 90
LFO dbA 82 82 83 81 82 83 82 83 83 84 89
HFG dbA 82 82 83 82 83 84 83 83 85 87 90
LFG dbA 81 81 82 81 82 83 81 81 82 84 88
NOTES1 Sound pressure levels measured on boilers operating in various locations and ex-
pressed in dbA are as shown2 Based on standard altitude fans and fan motors 60 Hz3 Contact your local Cleaver-Brooks authorized representative for sound levels of 60 25or 20 ppm LE Options
ABBREVIATIONS
HF = High Fire LF = Low Fire O = Oil G = Gas
Table A1-20 Model CBLE Predicted Sound Levels 30 ppm NOx Systemss
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Model CBLE 125-800 HP Boilers
29
Gas-Fired Burners Table A1-21 shows gas pressure with standard over- and undersized gas trains
Table A1-22 shows minimum required gas pressure altitude conversion
Figure A1-13 shows standard gas train sizes and locations for Model CB FiretubeBoilers
Figure A1-14 shows typical gas train piping layouts for multiple boiler applications
Figure A1-15 shows standard gas train components
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
30
Table A1-21 Standard Undersize and Oversize Gas Trains
CBLE
BOILER HP GAS TRAINSIZE
UPSTREAMVALVE
DOWNSTREAMVALVE
EMISSIONS LEVEL 09 ppm 15 ppm 20 ppm 30 ppm 60 ppm UC
125 HP 15 in BB BB 33 - 49 psi 33 - 49 psi 08 - 50 psi 07 - 50 psi 07 - 50 psi 07 - 50 ps
125 HP 15 in PC PC 34 - 50 psi 34 - 50 psi 09 - 50 psi 08 - 50 psi 08 - 50 psi 08 - 50 ps
125 HP 20 in BB BB 31 - 33 psi 31 - 33 psi 06 - 08 psi 06 - 07 psi 05 - 07 psi 05 - 07 ps
125 HP 20 in PC PC 31 - 34 psi 31 - 34 psi 06 - 09 psi 06 - 08 psi 06 - 08 psi 05 - 08 ps
125 HP 25 in PC PC 30 - 31 psi 30 - 31 psi 04 - 06 psi 04 - 06 psi 04 - 05 psi 04 - 05 ps
125 HP 30 in PC PC 29 - 30 psi 29 - 30 psi 04 - 04 psi 04 - 04 psi 04 - 04 psi 03 - 04 ps
125 HP 40 in PC PC 29 - 29 psi 29 - 29 psi 04 - 04 psi 03 - 04 psi 03 - 04 psi 03 - 03 ps
150 HP 15 in BB BB 37 - 55 psi 39 - 58 psi 10 - 47 psi 09 - 50 psi 09 - 50 psi 09 - 50 ps
150 HP 15 in PC PC 38 - 57 psi 40 - 60 psi 11 - 42 psi 11 - 50 psi 10 - 50 psi 10 - 50 ps
150 HP 20 in BB BB 34 - 37 psi 36 - 39 psi 07 - 10 psi 06 - 09 psi 06 - 09 psi 06 - 09 ps
150 HP 20 in PC PC 34 - 38 psi 36 - 40 psi 07 - 11 psi 07 - 11 psi 07 - 10 psi 06 - 10 ps
150 HP 25 in PC PC 32 - 34 psi 34 - 36 psi 05 - 07 psi 04 - 06 psi 04 - 06 psi 04 - 06 ps
150 HP 30 in PC PC 32 - 32 psi 34 - 34 psi 04 - 05 psi 04 - 04 psi 04 - 04 psi 03 - 04 ps
150 HP 40 in PC PC 31 - 32 psi 33 - 34 psi 04 - 04 psi 03 - 04 psi 03 - 04 psi 03 - 03 ps
200 HP 15 in BB BB 46 - 69 psi 50 - 75 psi 16 - 50 psi 15 - 50 psi 15 - 50 ps
200 HP 15 in PC PC 48 - 72 psi 52 - 78 psi 18 - 50 psi 17 - 50 psi 17 - 50 ps
200 HP 20 in BB BB 41 - 46 psi 45 - 50 psi 10 - 16 psi 10 - 15 psi 10 - 15 ps
200 HP 20 in PC PC 41 - 48 psi 45 - 52 psi 11 - 18 psi 11 - 17 psi 10 - 17 ps
200 HP 25 in PC PC 38 - 41 psi 42 - 45 psi 07 - 10 psi 07 - 10 psi 06 - 10 ps
200 HP 30 in PC PC 36 - 38 psi 40 - 42 psi 06 - 07 psi 05 - 07 psi 05 - 06 ps
200 HP 40 in PC PC 36 - 36 psi 40 - 40 psi 05 - 06 psi 05 - 05 psi 04 - 05 ps
250 HP 15 in BB BB 41 - 62 psi 44 - 67 psi 24 - 50 psi 24 - 27 psi 24 - 26 psi 23 - 26 ps
250 HP 15 in PC PC 45 - 67 psi 48 - 72 psi 28 - 50 psi 27 - 28 psi 27 - 27 psi 27 - 27 ps
250 HP 20 in BB BB 33 - 38 psi 37 - 41 psi 16 - 24 psi 16 - 24 psi 16 - 24 psi 15 - 23 ps
250 HP 20 in PC PC 34 - 40 psi 37 - 43 psi 17 - 28 psi 17 - 27 psi 16 - 27 psi 16 - 27 ps
250 HP 25 in PC PC 29 - 33 psi 32 - 37 psi 11 - 16 psi 11 - 16 psi 11 - 16 psi 10 - 15 ps
250 HP 30 in PC PC 27 - 29 psi 31 - 32 psi 09 - 11 psi 09 - 11 psi 09 - 11 psi 09 - 10 ps
250 HP 40 in PC PC 26 - 27 psi 29 - 31 psi 08 - 09 psi 08 - 09 psi 08 - 09 psi 08 - 09 ps
300 HP 15 in - 20 in BB BB 55 - 83 psi 57 - 85 psi 30 - 50 psi 30 - 36 psi 30 - 35 psi 30 - 35 ps
300 HP 15 in - 20 in PC PC 58 - 87 psi 60 - 90 psi 33 - 50 psi 33 - 37 psi 33 - 36 psi 33 - 36 ps
300 HP 20 in BB BB 46 - 55 psi 47 - 57 psi 21 - 30 psi 21 - 30 psi 20 - 30 psi 20 - 30 ps
300 HP 20 in PC PC 47 - 58 psi 48 - 60 psi 22 - 33 psi 22 - 33 psi 21 - 33 psi 21 - 33 ps
300 HP 30 in PC PC 39 - 46 psi 40 - 47 psi 13 - 21 psi 13 - 21 psi 12 - 20 psi 12 - 20 ps
300 HP 40 in PC PC 37 - 39 psi 39 - 40 psi 11 - 13 psi 11 - 13 psi 10 - 12 psi 10 - 12 ps
350 HP 15 in - 20 in BB BB 64 - 90 psi 62 - 90 psi 42 - 50 psi 42 - 50 psi 41 - 50 psi 41 - 50 ps
350 HP 15 in - 20 in PC PC 68 - 90 psi 66 - 90 psi 46 - 50 psi 46 - 50 psi 45 - 50 psi 45 - 50 ps
350 HP 20 in BB BB 54 - 64 psi 53 - 62 psi 32 - 42 psi 32 - 42 psi 32 - 41 psi 31 - 41 ps
350 HP 20 in PC PC 56 - 68 psi 54 - 66 psi 34 - 46 psi 34 - 46 psi 33 - 45 psi 33 - 45 ps
350 HP 25 in PC PC 43 - 54 psi 42 - 53 psi 21 - 32 psi 21 - 32 psi 20 - 32 psi 20 - 31 ps
350 HP 30 in PC PC 40 - 43 psi 38 - 42 psi 17 - 21 psi 17 - 21 psi 17 - 20 psi 16 - 20 ps
350 HP 40 in PC PC 37 - 40 psi 36 - 38 psi 15 - 17 psi 15 - 17 psi 14 - 17 psi 14 - 16 ps
400 HP 15 in - 20 in BB BB 69 - 90 psi 69 - 90 psi 46 - 50 psi 46 - 50 psi 45 - 50 psi 45 - 50 ps
400 HP 15 in - 20 in PC PC 74 - 90 psi 75 - 90 psi 51 - 87 psi 51 - 77 psi 51 - 77 psi 51 - 77 ps
400 HP 20 in BB BB 55 - 69 psi 56 - 69 psi 32 - 46 psi 32 - 46 psi 32 - 45 psi 32 - 45 ps
400 HP 20 in PC PC 57 - 74 psi 58 - 75 psi 34 - 50 psi 34 - 50 psi 34 - 50 psi 34 - 50 ps
400 HP 25 in PC PC 41 - 55 psi 42 - 56 psi 18 - 32 psi 18 - 32 psi 18 - 32 psi 18 - 32 ps
400 HP 30 in PC PC 37 - 41 psi 38 - 42 psi 13 - 18 psi 13 - 18 psi 13 - 18 psi 13 - 18 ps
400 HP 40 in PC PC 34 - 37 psi 35 - 38 psi 11 - 13 psi 10 - 13 psi 10 - 13 psi 10 - 13 ps
500 HP 20 in - 25 in BB PC 58 - 76 psi 58 - 76 psi 46 - 50 psi 46 - 50 psi 45 - 50 psi 45 - 50 ps
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Model CBLE 125-800 HP Boilers
31
BB = Butter Ball PC = Plug Cock
NOTE In cases where the gas train increases in size after the regulating valve two diameters are listed The first number is the customer connection size
500 HP 20 in - 25 in PC PC 60 - 83 psi 60 - 83 psi 48 - 50 psi 47 - 50 psi 47 - 50 psi 47 - 50 psi
500 HP 25 in PC PC 39 - 58 psi 39 - 58 psi 27 - 46 psi 27 - 46 psi 27 - 45 psi 26 - 45 psi
500 HP 30 in PC PC 33 - 39 psi 33 - 39 psi 20 - 27 psi 20 - 27 psi 20 - 27 psi 20 - 26 psi
500 HP 40 in PC PC 28 - 33 psi 28 - 33 psi 16 - 20 psi 16 - 20 psi 15 - 20 psi 15 - 20 psi
600 HP 20 in - 25 in BB PC 80 - 90 psi 80 - 90 psi 65 - 90 psi 65 - 90 psi 64 - 89 psi 63 - 88 psi
600 HP 20 in - 25 in PC PC 82 - 90 psi 82 - 90 psi 67 - 100 psi 67 - 100 psi 66 - 99 psi 66 - 99 psi
600 HP 25 in PC PC 54 - 80 psi 54 - 80 psi 39 - 50 psi 38 - 50 psi 38 - 50 psi 37 - 50 psi
600 HP 25 in - 30 in PC PC 52 - 54 psi 52 - 54 psi 37 - 39 psi 36 - 38 psi 35 - 38 psi 35 - 37 psi
600 HP 30 in PC PC 43 - 52 psi 43 - 52 psi 28 - 37 psi 27 - 36 psi 27 - 35 psi 26 - 35 psi
600 HP 40 in PC PC 37 - 43 psi 37 - 43 psi 22 - 28 psi 21 - 27 psi 20 - 27 psi 20 - 26 psi
700 HP 20 in - 30 in BB PC 110 - 150 psi 107 - 150 psi 87 - 131 psi 86 - 130 psi 86 - 129 psi 86 - 128 psi
700 HP 20 in - 30 in PC PC 113 - 150 psi 110 - 150 psi 90 - 135 psi 89 - 134 psi 89 - 134 psi 89 - 133 psi
700 HP 25 in - 30 in PC PC 71 - 90 psi 68 - 90 psi 48 - 50 psi 47 - 50 psi 47 - 50 psi 46 - 50 psi
700 HP 30 in PC PC 60 - 71 psi 57 - 68 psi 36 - 48 psi 36 - 47 psi 35 - 47 psi 35 - 46 psi
700 HP 40 in PC PC 51 - 60 psi 48 - 57 psi 28 - 36 psi 27 - 36 psi 27 - 35 psi 26 - 35 psi
800 HP 20 in - 30 in BB PC 108 - 150 psi 107 - 150 psi 106 - 150 psi
800 HP 20 in - 30 in PC PC 112 - 150 psi 111 - 150 psi 110 - 150 psi800 HP 25 in - 30 in PC PC 61 - 90 psi 60 - 100 psi 59 - 100 psi
800 HP 30 in PC PC 48 - 61 psi 47 - 50 psi 46 - 50 psi
800 HP 40 in PC PC 35 - 48 psi 34 - 47 psi 34 - 46 psi
Standard Gas Train size is highlighted
Table A1-21 Standard Undersize and Oversize Gas Trains (Continued)
CBLE
BOILER HP GAS TRAINSIZE
UPSTREAMVALVE
DOWNSTREAMVALVE
EMISSIONS LEVEL 09 ppm 15 ppm 20 ppm 30 ppm 60 ppm UC
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Model CBLE 125-800 HP Boilers
32
ALTITUDE(FT)
CORRECTIONFACTOR
ALTITUDE(FT)
CORRECTIONFACTOR
1000 104 6000 1252000 107 7000 130
3000 111 8000 135
4000 116 9000 140
5000 121 - -
To obtain minimum required gas pressure at altitudesabove 700 feet multiply the pressure by the listed factorsInches WC x 0577 = ozsq-inOzsq-in x 1732 = Inches WCInches WC x 00361= psigOzsq-in x 00625 = psigPsig x 2771 = Inches WCPsig x 160 = Ozsq-in
Table A1-22 Minimum Required Regulated Gas Pressure
Altitude Conversion
BOILERHP
TYPE OF GAS AND HEAT CONTENT
NATURAL GAS1000 (Btucu-ft)
PROPANE GAS2550 (Btucu-ft)
125 5103 2000
150 6124 2402
200 8165 3202
250 10206 4002
300 12247 4802
350 14280 5600
400 16329 6404
500 20415 8006
600 24494 9605
700 28576 11206
800 32659 12807
Table A1-23 Maximum Gas Consumption (CFH)
for Natural Gas and Propane Vapor
BOILER
HP
MODEL CB
CONNECTION SIZE
(IN NPT)
LOCATIONDIMENSION
ldquoArdquo (IN)
125-200 1-12 52
250-350 2 56
400 2 58
500 2-12 60
600 2-12 - 3 71
700-800 3 65
Figure A1-13 Standard Gas Train Connection Size and Location
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Model CBLE 125-800 HP Boilers
33
Oil-Fired Burners Fuel oil consumption information is shown on the boiler rating sheets in theDimensions and Rating Section
Figure A1-16 shows the oil connection sizes and locations for Model CB Boilersfiring No 2 oil
Figure A1-17 through Figure A1-18 show typical oil systems and layouts
Figure A1-19 and Figure A1-20 show the detail of an oil transfer tank (day tank)typically utilized to provide a storage reservoir between the oil system supply pumpand the boiler oil pump
General BoilerInformation
Table A1-24 shows blowdown tank sizing information
Table A1-25 provides heating surface information
Table A1-26 provides steam volume and disengaging area information
Table A1-27 provides recommended steam nozzle sizes
Table A1-28 provides recommended non-return valve sizes
Boiler RoomInformation
Figure A1-21 shows typical boiler room length requirements
Figure A1-22 shows typical boiler room width requirements
Figure A1-23 shows typical breeching arrangements
Stack SupportCapabilities
All standard Cleaver-Brooks Firetube Boilers with an LE option can support up to2000 lbs without additional support
LE Boilers 250 hp through 800 hp can be reinforced to support 3000 lbs
StackBreechingSize Criteria
The design of the stack and breeching must provide the required draft at each boilerflue gas outlet Proper draft is critical to burner performance
Although constant pressure at the flue gas outlet of the Model CB-LE is not requiredit is necessary to size the stackbreeching to limit flue gas pressure variation Theallowable pressure range is ndash025 WC to +025 WC
For additional information please review Section I4 General Engineering Data(Stacks) and Section F Stacks Stack and breeching sizes should always be providedby a reputable stack supplier who will design the stack and breeching system basedon the above criteria Your local Cleaver-Brooks authorized representative is capableof assisting in your evaluation of the stackbreeching design
Boiler RoomCombustion Air
When determining boiler room air requirements the size of the room air flow andvelocity of air must be reviewed as follows
1 Size (area) and location of air supply openings in boiler room
A Two (2) permanent air supply openings in the outer walls of the boiler room
are recommended Locate (1) at each end of the boiler room preferablybelow a height of 7 feet This allows air to sweep the length of the boiler
B Air supply openings can be louvered for weather protection but they shouldnot be covered with fine mesh wire as this type of covering has poor air flowqualities and is subject to clogging by dust or dirt
C A vent fan in the boiler room is not recommended as it could create a slightvacuum under certain conditions and cause variations in the quantity ofcombustion air This can result in unsatisfactory burner performance
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Model CBLE 125-800 HP Boilers
34
D Under no condition should the total area of the air supply openings be lessthan (1) square foot
E Size the openings by using the formulaArea (sq-ft) = CFMFPM
2 Amount of air required (cfm)
A Combustion Air = Rated bhp x 8 cfmbhp
B Ventilation Air = Maximum bhp x 2 cfmbhp
C Total recommended air = 10 cfmbhp - up to 1000 feet elevation Add 3percent more per 1000 feet of added elevation
3 Acceptable air velocity in Boiler Room (fpm)
A From floor to (7) foot height - 250 fpm
B Above (7) foot height - 500 fpm
Example Determine the area of the boiler room air supply openings for (1) 300 hpboiler at 800 feet altitude The air openings are to be 5 feet above floor level
bull Air required 300 x 10 = 3000 cfm (from 2B above)
bull Air velocity Up to 7 feet = 250 fpm (from 3 above)
bull Area Required Area = cfm = 3000250 = 12 sq-ft total
bull AreaOpening 122 = 6 sq-ftopening (2 required)
Notice
Consult local codes which may supersede these requirements
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Model CBLE 125-800 HP Boilers
35
This figure illustrates the basic gas valve arrangement on Cleaver-BrooksModel CB boiler and shows the contractors connection point The valves andcontrols between the contractor connection point and the gas main in thestreet are representative of a typical installation Actual requirements mayvary depending on local codes or local gas company requirements which
should be investigated prior to preparation of specifications and prior to con-struction
A Utilities service valveB Utilities service regulatorC Gas meterD Piping from meter to boiler
The size of the gas line from the meter to the gas pressure regulator at theboiler can be very important if gas pressures are marginal The gas line sizingis dependent on
1 Gas pressure at outlet of gas meter (C)2 Rate of gas flow required CFH3 Length of pipe run (D)4 Pressure required at contractor connection point
The local gas utility will advise the pressure that is available at the outlet oftheir meter
Figure A1-14 Typical Gas Piping Layout
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Model CBLE 125-800 HP Boilers
36
5
6
S
1
3
42
PILOT GAS LINE
S
S
MAIN GAS LINE
M M
ToBurner
GasSupply
11
10
97
12138
14 15
FLOW
FLOW
Figure A1-15 Model CB-LE Gas Train Components
BOILER
HP
MODEL CB
SUPPLYANDRE-
TURNCONN SIZES
(IN)(NPT)
A(IN)
RECOMMENDED OIL LINEA
SIZES(STANDARD PIPE)
(IN - IPS)
STOR-AGE
TANK TOBOILER
OR PUMPCONNECT
PUMPTO
BOILER
RE-TURN
LINE TOTANK
125150 200
34 12-12 1 1 1
250300350
34 34 1 1 1
400500600
34 11-34 1 1 1
700800
1 11-34 1 1 1
NOTE See No 2 Oil Line Sizing Instruction for systems with other conditions A For suction line condition with a maximum of 10 Feet of lift and a
total of 100 feet of suction line
Figure A1-16 No2 Oil Connection Size Location and Recommended Line Sizes
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Model CBLE 125-800 HP Boilers
37
Figure A1-17 No 2 Oil Piping Single Boiler
Installation Remote Oil Pump
Figure A1-18 No 2 Oil Piping Multiple Boiler
Installation Remote Oil Pumps
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Model CBLE 125-800 HP Boilers
38
Figure A1-19 No 2 Oil Piping Multiple Boiler
Installation
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Model CBLE 125-800 HP Boilers
39
Figure A1-20 No 2 Oil Piping Typical Arrangement
Table A1-24 Model CB-LE Blowdown
Tank Sizing
BOILER HP WATER (GAL)
125 97
150 118
200 145
250 146
300 176
350 210
400 177
500 209
600 250
700 800 296
NOTE Quantity of water removed from boiler by lowering normal water line 4
BOILER
HP
HEATING SURFACE (SQ-FT)
FIRESIDE WATERSIDE
125 625 679
150 750 820
200 1000 1092
250 1250 1346
300 1500 1623
350 1750 1932
400 2000 2151
500 2500 2691
600 3000 3262
700 800 3500 3810
Table A1-25 Heating Surface Model CB-LE
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Model CBLE 125-800 HP Boilers
40
BOILER HPSTEAM VOLUME CU-FT
STEAM DISENGAGING AREASQ-IN
HIGH PRESSUREA LOW PRESSUREB HIGH PRESSUREA LOW PRESSUREB
125 254 366 5371 5887
150 307 443 6511 7138
200 377 544 7985 8752
250 492 706 7980 8695
300 595 853 9651 10516
350 709 1017 11507 12538
400 721 979 9793 10593
500 837 1137 11376 12303
600 1015 1378 13787 14911
700-800 1198 1627 16273 17600
NOTE Based on normal water levelA Based on 150 psig design pressureB Based on 15 psig design pressure
Table A1-26 Steam Volume and Disengaging Area
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Model CBLE 125-800 HP Boilers
41
BOILERHP
BOILERCAPACITY(LBSHR)
OPERATING PRESSURES (PSIG)
50 75 100 125 150 175 200 250
100 3450
2-12 2-12 NA NA NA NA NA NA
125 4313 3 2-12 2-12 2-12 NA NA NA NA
150 5175 3 3 2-12 2-12 2-12 2-12 NA NA
200 6900 3 3 3 3 3 2-12 2-12 2-12
250 8625 4 3 3 3 3 3 3 3
300 10350 4 4 4 3 3 3 3 3
350 12025 4 4 4 4 4 3 3 3
400 13800 5 4 4 4 4 4 4 3
500 17210 6 5 5 4 4 4 4 4
600 20700 6 6 5 5 5 4 4 4
700 24150 6 6 6 5 5 5 5 4
800 27600 6 6 6 6 6 5 5 5
NOTE Valve sizes (300 Flanges) given in inchesStandard Non-Return valve selections limited to a maximum 2 to 1 turndown(50 of full load) selections based on typical non-return valve sizing recommen-dations For final valve selection contact your C-B authorized representative Forhigh turndown applications see Boiler Book Section I3 Table I3-3 Indicates pressure drop of less than 75 psig All other selections are less than6 psig pressure drop
Boiler HP
OPERATINGPRESSURE
PSIG125 150 200 250 300 350 400 500 600 700 800
15 8 8 10 10 12 12 12 12 12 12 12
30 6 6 8 8 8 10 10 10 12 12 12
40 6 6 6 8 8 8 10 10 10 12 12
50 6 6 6 6 8 8 8 10 10 10 12
75 4 4 6 6 6 8 8 8 8 10 10
100 4 4 6 6 6 6 6 8 8 8 10
125 4 4 4 6 6 6 6 8 8 8 8
150 3 3 4 4 6 6 6 6 6 8 8
200 25 3 4 4 4 4 6 6 6 6 6
250 25 3 3 4 4 4 4 6 6 6 6
NOTES1 Steam nozzle sizes given in inches2 Recommended steam nozzle sizes based on 4000 to 5000 fpm steam velocity3 All standard steam nozzle sizes for 150 psig design pressure or greater are the sameas 125 psig operating pressure on the above table To increase or decrease the standardsize request the change with your local Cleaver-Brooks authorized representative4 Shaded area denotes special surge load baffles must be installed to avoid possible wa-ter carry-over5 For incremental operating pressures see Table I3-1 Steam Systems Fundamentals
Table A1-28 Recommended Steam Nozzle Size (for
4000 to 5000 fpm nozzle velocity)
Table A1-29 Recommended Non-Return Valve Size
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Model CBLE 125-800 HP Boilers
42
1 Shortest boiler room length (Dwg A) is obtained by allowing for possible future tube replacement (from front or rearof boiler) through a window or doorway Allowance is only made for minimum door swing at each end of the boilerThis arrangement provides sufficient aisle space at the front of the boiler but a ldquotightrdquo space condition at the rear
If space permits approximately 15 additional feet should be allowed at the rear for additional aisle and workingspace
2 Next shortest boiler room length (Dwg B) is obtained by allowing for possible future tube replacement from thefront of the boiler Allowance is only made for minimum door swing at the rear
If space permits approximately 15 additional feet should be allowed at the rear for additional aisle and workingspace
3 A slightly longer boiler room (Dwg C) is obtained by allowing for possible future tube replacement from the rear ofthe boiler Allowance for door swing at the front provides sufficient aisle and working space at the front
Figure A1-21 Boiler Room Length (Typical Layouts)
BOILER HP 125-200 250-350 400-800
Dimension A 82 93 102
Dimension B 115 141 171
NOTES1 Recommended Minimum Distance Between Boiler and Wall Dimen-
sion ldquoArdquo allows for a ldquoclearrdquo 42 aisle between the water col-umn on the boiler and the wall If space permits this aisle
should be widened 2 Recommended Minimum Distance Between BoilersDimension ldquoBrdquo between boilers allows for a ldquoclearrdquo aisle of42 - 125 -200 hp48 - 250-350 hp60 - 400-800 hpIf space permits this aisle should be widened
Figure A1-22 Boiler Room Width (Typical Layout)
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Model CBLE 125-800 HP Boilers
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Model CBLE 125-800 HP Boilers
7
Description DIM Boiler HP
125 150 200
HEIGHTS (continued)
Base to Panel Top T 75 75 77Base to Panel Bottom U 15 15 17
Height of Base V 12 12 12
Base to Steam Nozzle Y 8238 8238 8238
WIDTHS
Width Overall O 8988 89875 905
Center to ALWCO P 3875 3875 3875
Center to Outside Control Panel Q 485 485 485
Center to Lagging R 33 33 33
Center to WC S 445 45 45
Base Inside W 445 445 445
Base Outside X 525 525 525
Boiler ID F 60 60 60
CONNECTIONSElectric - Main Power Supply AA 460 3 60 460 3 60 460 3 60
Surface Blowoff (with collector pipe) BB 1 1 1
Steam Outlet 15 (150 Flange) CC 8 8 10
Steam Outlet 150 (300 Flange) CC 4 4 4
Chemical Feed FF 1 1 1
Feed Water (2) GG 15 15 2
Blowdown (2) 150 HH 15 15 15
Drain (2) 15 HH 15 15 2
Water Column Blowdown JJ 075 075 075
Gauge Glass Blowdown KK 025 025 025
VENT STACK
Diameter (OD) (flgd connection) 16 16 16
CLEARANCES
Rear Door Swing (Davited) 32 32 32
Front Door Swing 67 67 67
Tube Removal Rear 115 139 170
Tube Removal Front 103 127 158
MINIMUM BOILER ROOM LENGTH ALLOWING FOR DOOR SWING AND TUBE REMOVAL
From Rear of Boiler 307 355 417
From Front of Boiler 260 308 370
Through Window or Doorway 224 248 279
WEIGHT IN LBS
Normal Water Capacity 5750 7250 8625
Approx Ship Wt 15 psig 11300 12600 14600
Approx Ship Wt 150 psig 12400 13500 15600
Approx Ship Wt 200 psig 13000 14200 16400
Table A1-3 Model CB-LE Steam Boiler Dimensions 60rdquo (15 - 150 psig Design Pressure) - Sheet 2 of 2
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Model CBLE 125-800 HP Boilers
8
A
BC
D
E
F
G
H I J
K
L
M
N
O
P QR S
T
UV
W
X
Y
AA
BBCC
DD
EE
FF
GG
HH
HH
JJ
JJ
KK
GG
GG
Y
FARSIDE
(measurements shown in inches)
Description DIM
Boiler HP
250 300 350
LENGTHS
Length Overall A 1915 220 250
Shell B 144 171 201
Front Head Extension C 235 25 25
Front Ring Flange to Nozzle - 15 D 90 98 112
Front Ring Flange to Nozzle - 150 D 88 98 112
Rear Head Extension E 24 24 24
Front Ring Flange to Panel G 17 23 23
Ring Flange to Base H 05 05 05
Base Frame I 131 158 188
Rear Flange Ring to Base J 125 125 125
HEIGHTS
Ht Overall K 115 115 115
Base to Vent Outlet L 106 106 106Base to Boiler Centerline M 56 56 56
Base to Gas Train N 10 10 10
Base to Panel Top T 77 77 77
Base to Panel Bottom U 17 17 17
Height of Base V 12 12 12
Base to Steam Nozzle Y 10150 10150 10150
Table A1-4 Model CB-LE Steam Boiler Dimensions
78rdquo (15 - 150 psig Design Pressure) - Sheet 1 of 2
Figure A1-2 CB-LE Steam - 250-350 HP
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 943
Model CBLE 125-800 HP Boilers
9
Description DIM Boiler HP
250 300 350
WIDTHS
Width Overall O 1065 1065 10875Center to ALWCO P 485 485 485
Center to Outside Control Panel Q 58 58 58
Center to Lagging R 42 42 42
Center to WC S 5375 5375 5375
Base Inside W 56 56 56
Base Outside X 64 64 64
Boiler ID F 78 78 78
CONNECTIONS
Electric - Main Power Supply AA 460 3 60 460 3 60 460 3 60
Surface Blowoff (with collector pipe) BB 1 1 1
Steam Outlet 15 (150 Flange) CC 12 12 12
Steam Outlet 150 (300 Flange) CC 6 6 6
Chemical Feed FF 1 1 1
Feed Water (2) GG 2 2 25Blowdown (2) 150 HH 15 15 15
Drain (2) 15 HH 2 2 2
Water Column Blowdown JJ 075 075 075
Gauge Glass Blowdown KK 025 025 025
VENT STACK
Diameter (OD) (flgd connection) 20 20 20
CLEARANCES
Rear Door Swing 43 43 43
Front Door Swing 89 89 89
Tube Removal Rear 131 157 187
Tube Removal Front 116 142 172
MINIMUM BOILER ROOM LENGTH ALLOWING FOR DOOR SWING AND TUBE REMOVAL
From Rear of Boiler 364 417 477
From Front of Boiler 303 356 416
Through Window or Doorway 275 302 332
WEIGHT IN LBS
Normal Water Capacity 10670 13000 15465
Approx Ship Wt 15 psig 21500 23600 26800
Approx Ship Wt 150 psig 22800 25200 27800
Approx Ship Wt 200 psig 24600 27200 29300
Table A1-4 Model CB-LE Steam Boiler Dimensions 78rdquo (15 - 150 psig Design Pressure) - Sheet 2 of 2
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 1043
Model CBLE 125-800 HP Boilers
10
A
BC
D
E
F
G
HI J
K
AA
BB CC
DD
EE
FF
JJ
GG
HH HH
L
M
N
O
P Q
R S
T
UV
W
X
Y
JJ
JJ
KK
GGGG
Y
FARSIDE
Table A1-5 Model CB-LE Steam Boiler Dimensions
96rdquo (15 - 150 psig Design Pressure) - Sheet 1 of 2
(measurements shown in inches)
Description DIMBoiler HP
400 500 600 700 800
LENGTHS
Length Overall A 20575 22775 25975 29875 29875
Shell B 14675 1675 19975 23275 23275
Front Head Extension C 27 28 28 34 34
Front Ring Flange to Nozzle - 15 D 98 101 96 112 112
Front Ring Flange to Nozzle - 150 D 96 100 96 112 112
Rear Head Extension E 32 32 32 32 32
Front Ring Flange to Panel G 26 26 26 26 26
Ring Flange to Base H 05 05 05 05 05
Base Frame I 13375 15475 18675 21975 21975
Rear Flange Ring to Base J 125 125 125 125 125
Figure A1-3 CB-LE Steam - 400-800 HP
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 1143
Model CBLE 125-800 HP Boilers
11
Description DIM Boiler HP
400 500 600 700 800
HEIGHTS
Ht Overall K 134 134 134 134 134Base to Vent Outlet L 126 126 126 126 126
Base to Boiler Centerline M 67 67 67 67 67
Base to Gas Train N 12 12 12 12 12
Base to Panel Top T 75 75 75 75 75
Base to Panel Bottom U 15 15 15 15 15
Height of Base V 12 12 12 12 12
Base to Steam Nozzle Y 1215 1235 1215 121 121
WIDTHS
Width Overall O 124 12425 124 124 124
Center to ALWCO P 575 575 575 575 575
Center to Outside Control Panel Q 665 665 665 665 665
Center to Lagging R 51 51 51 51 51
Center to WC S 63 63 63 63 63
Base Inside W 5888 5888 5888 5888 5888
Base Outside X 7188 7188 7188 7188 7188
Boiler ID F 96 96 96 96 96
CONNECTIONS
Electric - Main Power Supply AA 460 3 60 460 3 60 460 3 60 460 3 60 460 3 60
Surface Blowoff (with collector pipe) BB 1 1 1 1 1
Steam Outlet 15 (150 Flange) CC 12 12 12 12 12
Steam Outlet 150 (300 Flange) CC 6 8 8 8 8
Chemical Feed FF 1 1 1 1 1
Feed Water (2) GG 25 25 25 25 25
BlowdownDrain (2) HH 2 2 2 2 2
Water Column Blowdown JJ 075 075 075 075 075
Gauge Glass Blowdown KK 025 025 025 025 025
VENT STACK
Diameter (OD) (flgd connection) 24 24 24 24 24
CLEARANCES
Rear Door Swing 53 53 53 53 53Front Door Swing 108 108 108 108 108Tube Removal Rear 131 152 184 217 217
Tube Removal Front 114 135 167 200 200
MINIMUM BOILER ROOM LENGTH ALLOWING FOR DOOR SWING AND TUBE REMOVAL
From Rear of Boiler 386 428 492 558 558
From Front of Boiler 314 356 420 486 486
Through Window or Doorway 308 329 361 394 394
WEIGHT IN LBS
Normal Water Capacity 14810 15950 19270 23000 23000
Approx Ship Wt 15 psig 33500 37110 42300 49500 49600 Approx Ship Wt 150 psig 36570 39970 45025 52050 52150
Approx Ship Wt 200 psig 39680 43580 49400 57315 57415
Table A1-5 Model CB-LE Steam Boiler Dimensions
96rdquo (15 - 150 psig Design Pressure) - Sheet 2 of 2
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 1243
Model CBLE 125-800 HP Boilers
12
BOILER HP DIM 125 150 200
LENGTHS
Overall (60 ppm System) A 171-12 196-12 228-12
Shell B 125 149 180
Base Frame C 112 136 167
Front Head Extension (60 ppm System) D 27 28 29
Rear Head Extension E 19-12 19-12 19-12
Front Ring Flange to Outlet HH 114 136 167
Front Ring Flange to Return H 89 102 131
Ring Flange to Base F 12 12 12
Over Tubesheets V 113 137 168
Shell Extension P 12 12 12
Rear Flange Ring to Base G 12-12 12-12 12-12
Table A1-6 Model CB-LE Hot Water Boiler Dimensions
60rdquo (30 and 125 psig Design Pressure) - Sheet 1 of 2
Figure A1-4 CB-LE Hot Water - 125-200 HP
R
F G
WW
P
BB
D E
GG
Q
Z
Y T U
RR - RF - RD
X
HH
A
B
HI
L K
OO O
KK
M
N
EE
FF
DD
V
J
C
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 1343
Model CBLE 125-800 HP Boilers
13
BOILER HP DIM 125 150 200
WIDTHS
Overall I 75-12 75-12 75-12
ID Boiler J 60 60 60
Center to Entrance Box K 42-12 42-12 42-12
Center to Outside Hinge KK 35 35 35
Center to Lagging L 33 33 33
Base Outside M 52-12 52-12 52-12
Base Inside N 44-12 44-12 44-12
HEIGHTS
Overall OO 87 87 87
Base to Vent Outlet O 87 87 87
Base to Return and Outlet X 82-38 82-38 82-38
Height of Base Q 12 12 12
Base to Bottom of Boiler R 16 16 16
BOILER CONNECTION
Auxiliary Connection Z 1 1 1
Water Return Flange T 6A 6A 6A
Water Outlet Flange (2 Dip Tube Included) U 6A 6A 6A
Drain Front and Rear W 1-12 1-12 2
Air Vent Y 1-12 1-12 1-12
VENT STACK
Diameter (flgd connection) BB 16 16 16
MINIMUM CLEARANCES
Rear Door Swing DD 32 32 32
Front Door Swing EE 67 67 67
Tube Removal Rear FF 115 139 170Tube Removal Front GG 103 127 158
MINIMUM BOILER ROOM LENGTH ALLOWING FOR DOOR SWING AND TUBE REMOVAL FROM
Rear of Boiler RR 307 355 417
Front of Boiler RF 260 308 370
Thru Window or Doorway RD 224 248 279
WEIGHT IN LBS
Water Capacity Flooded 7670 9295 11130
Approx Ship Wgt ndash 30 psigApprox Ship Wgt ndash 125 psig
1140011800
1250012900
1450014900
NOTES All connections are threaded unless indicatedA ANSI 150 psig flange
Table A1-6 Model CB-LE Hot Water Boiler Dimensions
60rdquo (30 and 125 psig Design Pressure) - Sheet 2 of 2
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 1443
Model CBLE 125-800 HP Boilers
14
BOILER HP DIM 250 300 350
LENGTHS
Overall (60 ppm System) A 191-12 220 252
Shell B 144 171 201
Base Frame C 131 158 188
Front Head Extension (60 ppm System) D 23-12 25 27
Rear Head Extension E 24 24 24
Front Ring Flange to Return H 103-12 130 160
Front Ring Flange to Outlet HH 131 158 188
Ring Flange to Base F 12 12 12
Over Tubesheets V 129 156 186
Shell Extension P 15 15 15
Rear Flange Ring to Base G 12-12 12-12 12-12
Table A1-7 Model CB-LE Hot Water Boiler Dimensions78rdquo (30 and 125 psig Design Pressure) - Sheet 1 of 2
Figure A1-5 CB-LE Hot Water 250-350 HP
s k o o r B r e v a
e l C
R
F G
WW
P
BB
D E
GG
Q
Z
Y T U
RR - RF - RD
X
HH
A
B
HI
L K
OOO
KK
M
N
EE
FF
DD
V
J
C
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 1543
Model CBLE 125-800 HP Boilers
15
BOILER HP DIM 250 300 350
WIDTHS
Overall I 93 93 93
ID Boiler J 78 78 78
Center to Entrance Box K 51 51 51
Center to Outside Hinge KK 51 51 51
Center to Lagging L 42 42 42
Base Outside M 64 64 64
Base Inside N 52 52 52
HEIGHTS
Overall OO 115 115 115
Base to Vent Outlet O 106 106 106
Base to Return and Outlet X 101-12 101-12 101-12
Height of Base Q 10 10 10
Base to Bottom of Boiler R 17 17 17
BOILER CONNECTION
Auxiliary Connection Z 1-14 1-14 1-14
Water Return Flange (2 Dip Tube included) T 8A 8A 8A
Water Outlet Flange (2 Dip Tube Included) U 8A 8A 8A
Air Vent Y 1-12 1-12 1-12
Drain Front and Rear W 2 2 2
VENT STACK
Diameter (flgd connection) BB 20 20 20
MINIMUM CLEARANCES
Rear Door Swing DD 43 43 43
Front Door Swing EE 89 89 89
Tube Removal Rear FF 131 157 187
Tube Removal Front GG 116 142 172
MINIMUM BOILER ROOM LENGTH ALLOWING FOR DOOR SWING AND TUBE REMOVAL FROM
Rear of Boiler RR 364 417 477
Front of Boiler RF 303 356 416
Thru Window or Doorway RD 275 302 332
WEIGHT IN LBS
Water Capacity Flooded 13880 16840 20090
Approx Ship Wgt ndash 30 psigApprox Ship Wgt ndash 125 psig
2140022200
2350024300
2670027500
NOTES All connections are threaded unless indictedA ANSI 150 psig flange
Table A1-7 Model CB-LE Hot Water Boiler Dimensions
78rdquo (30 and 125 psig Design Pressure) - Sheet 2 of 2
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 1643
Model CBLE 125-800 HP Boilers
16
BOILER HP DIM 400 500 600 700 800
LENGTHS
Overall (60 ppm System) A 206 228 262 299 300
Shell B 147 168 200 233 233
Base Frame C 134 155 187 220 220
Front Head Extension (60 ppm System) D 27 28 30 34 35
Rear Head Extension E 32 32 32 32 32
Shell Ring Flange to Base F 12 12 12 12 12
Rear Ring Flange to Base G 12-12 12-12 12-12 12-12 12-12
Shell Flange to Outlet HH 139-12 156-12 182-12 216-12 216-12
Shell Flange to Return H 107 125 151-12 185 185
Over Tubesheets V 130 151 183 216 216
Shell Extension P 17 17 17 17 17
Table A1-8 Model CB-LE Hot Water Boiler Dimensions96rdquo (30 and 125 psig Design Pressure) - Sheet 1 of 2
Figure A1-6 CB-LE Hot Water 400-800 HP
s k o o r B r e v a
e l C
R
F G
WW
P
BB
D E
GG
Q
Z
Y T U
RR - RF - RD
X
HH
A
B
HI
L K
OOO
KK
M
N
EE
FF
DD
V
J
C
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 1743
Model CBLE 125-800 HP Boilers
17
WIDTHS
Overall I 113 113 113 113 115
ID Boiler J 96 96 96 96 96
Center to Entrance Box K 62 62 62 62 64
Center to Outside Hinge KK 62 62 62 62 62
Center to Lagging L 51 51 51 51 51
Base Outside M 72 72 72 72 72
Base Inside N 56 56 56 56 56
HEIGHTS
Overall OO 134 134 134 134 134
Base to Vent Outlet O 126 126 126 126 126
Height of Base Q 12 12 12 12 12
Base to Bottom of Boiler R 19 19 19 19 19
Base to Return and Outlet X 121-916 121-916 121-916 121-916 121-916
BOILER CONNECTIONS
Auxiliary Connection Z 1-14 1-14 1-14 1-14 1-14
Drain Front and Rear W 2 2 2 2 2
Water Return T 10A 10A 12A 12A 12A
Water Outlet (2rdquo Dip Tube Included) U 10A 10A 12A 12A 12A
Air Vent Y 2 2 2 2 2
VENT STACK
Diameter (Flanged Connection) BB 24 24 24 24 24
MINIMUM CLEARANCES
Rear Door Swing DD 53 53 53 53 53
Front Door Swing EE 108 108 108 108 108
Tube Removal Rear FF 131 152 184 217 217
Tube Removal Front GG 114 135 167 200 200
MINIMUM BOILER ROOM LENGTH ALLOWING FOR DOOR SWING AND TUBE REMOVAL FROM
Rear of Boiler RR 386 428 492 558 558
Front of Boiler RF 314 356 420 486 486
Thru Window or Doorway RD 308 329 361 394 394
WEIGHT IN LBS
Normal Water Capacity 20015 23300 28260 33360 33360
Approx Ship Wgt ndash 30 psig
Approx Ship Wgt ndash 125 psig
33300
37270
36900
40780
42150
46005
49650
53300
49750
53400
NOTES All connections are threaded unless indicated
A ANSI 150 psig flange
BOILER HP DIM 400 500 600 700 800
Table A1-8 Model CB-LE Hot Water Boiler Dimensions
96rdquo (30 and 125 psig Design Pressure) - Sheet 2 of 2
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
18
BOILER HP
MOTOR HP
60PPM
30PPM
25PPM
20PPM
125 5 10 5 10
150 75 10 10 10
200 15 15 20 NA
250 75 10 15 15
300 10 15 20 30
350 15 25 40 40
400 10 15 20 20
500 15 20 25 30
600 25 30 50 60
700 30 50 75 75
800 50 75 NA NA
NOTES For elevations above 700rsquo - contact your local
Cleaver-Brooks authorized representative
Table A1-9 Model CB-LE Blower Motor Selection -
Operating Pressures 150 psig and Less and All Hot
Water Boilers
BOILER HP
MOTOR HP
60
PPM
30
PPM
25
PPM
20
PPM
125 5 10 10 10
150 10 10 10 15
200 15 20 20 NA
250 75 10 15 20
300 10 20 30 40
350 20 30 40 50
400 10 15 20 25
500 20 25 30 40
600 25 40 60 60
700 40 60 75B 75C
800 60 75A NA NA
NOTES For elevation above 700rsquo - contact your local
Cleaver-Brooks authorized representative
A Downrate to 770 hp
B Downrate to 675 hp
C Downrate to 660 hp
Table A1-10 Model CB-LE Blower Motor Selection -
Operating Pressures Greater than 150 psig (Steam
Boilers)
09-09
Table A1-11 Blower Motor Selection CB-LE NTI BoilersTable A1-12 Turndown Guarantee for CB-LE NTI
Boilers - Natural Gas amp 2 Oil
Boiler SizeTurndown
9 ppm 15 ppm
125 41 41
150 41 51
200 41 51
250 51 51
300 51 51
350 51 51
400 51 61
500 51 61
600 61 61
700 71 71
800 71 71
800 HP to be derated to 720 HP for 9 ppm and 750 HP
for 15 ppm
Altitude 700 ft and less - Design Pressure 150 psi and less
800 HP - to be de-rated to 720 HP for 9 ppm and to 750 HP for 15 ppm
mpp9mpp51Nominal
Boiler Size Blower Motor HP Blower Motor HP
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
19
BOILER HPFUEL
SERIES
HOT WATER STEAM
30 PSIG 125 PSIG 15 PSIG 150 PSIG 200 PSIG
125100 11200 11600 11300 12000 12600200 11400 11800 11500 12400 13000
700 11300 11700 11400 12300 12900
150
100 12300 12700 12400 13200 13900
200 12500 12900 12600 13500 14200
700 12300 12700 12400 13300 14000
200
100 14400 14800 14500 15500 16300
200 14500 14900 14600 15600 16400
700 14500 14900 14600 15600 16400
250
100 20700 21500 20800 22000 23800
200 21400 22200 21500 22800 24600
700 20900 21700 21000 22500 24300
300
100 23100 23900 23200 24800 26800
200 23500 24300 23600 25200 27200
700 23400 24200 23500 25000 27000
350
100 26200 27000 26300 27600 29100
200 26700 27500 26800 27800 29300
700 26400 27200 26500 27700 29200
400
100 33000 36970 33200 36270 39380
200 33300 37270 33500 36570 39680
700 33200 37170 33400 36470 39580
500
100 36600 40470 36810 39670 43480
200 36900 40780 37110 39970 43580
700 36800 40680 37010 39870 43280
600
100 41850 45905 42000 44725 49100
200 42150 46005 42300 45025 49400
700 42050 45915 42200 44925 49300
700800
100 49450 53000 49300 51850 57015
200 49750 53300 49600 52150 57315
700 49650 53200 49500 52050 57215
NOTES1 Weights shown are based on standard product offering for current listed boilers If units are of special design and construction actual weightwill be determined at time of shipment Shipment will then be made on shippers weight and count All weights are in US pounds
Table A1-13 Model CB-LE Boiler Weights
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
20
VALVE
SETTING15 PSIG STEAM 100 PSIG STEAM 125 PSIG STEAM 150 PSIG STEAM 200 PSIG STEAM 250 PSIG STEAM 300 PSIG STEAM
BOILERHP
NO OF
VALVES-REQD
OUTLET
SIZE(IN)
NO OF
VALVES-REQD
OUTLET
SIZE(IN)
NO OF
VALVESREQD
OUTLET
SIZE(IN)
NO OF
VALVES-REQD
OUTLET
SIZE(IN)
NO OF
VALVES-REQD
OUTLET
SIZE(IN)
NO OF
VALVESREQD
OUTLET
SIZE(IN)
NO OF
VALVESREQD
OUTLET
SIZE(IN)
125 1 3 2 1-12 2(1) 1-12(1) 1-14
2(1) 1-12(1) 1-14
2(1) 1-14(1) 1
2 1 2 1
150 1 3 2(1) 2(1) 1-12
2 1-14 2(1) 1-12(1) 1-14
2(1) 1(1) 1-14
2 1 2 1
200 2 2-12 2 2 2 1-12 2 1-12 2(1) 1-12(1) 1-14
2 1-14 2(1) 1(1) 1-14
250 2(1) 2-12(1) 3
2(1) 2-12(1) 2
2(1)2(1)1-12
2(1) 2(1) 1-12
2(1)1-12(1)1-14
2(1) 1-12(1) 1-14
2 1-14
300 2 3 2(1) 2-12(1) 2
2 2 2(1) 2(1) 1-12
2 1-12 2(1)1-12(1)1-14
2(1) 1-12(1) 1-14
350 3(1) 2(2) 3
3(1) 2-12(2) 2
2(1)2(1)1-12
2 2 2(1) 1-12(1) 2
2 1-12 2(1) 1-12(1) 1-14
400 3(2) 3(1) 2-12
3(1) 2(2) 2-12
2(1)2(1)2-12
2(1) 2-12(1) 2
2(1) 1-12(1) 2
2(1) 2(1) 1-12
2 1-12
500 3 (3) 3 3 2-12 2 2-12 2(1) 2-12(1) 2
2(1) 2(1) 2-12
2(1) 2(1)1-12
2(1) 1-12(1) 2
600 4 3 4(3) 2-12(1) 2
3 2-12 2 2-12 2(1) 2(1) 2-12
2 2 2 2
700 5(3) 3(2) 2-12
5(3) 2-12(2) 2
3 2-12 3(2) 2-12(1) 2
2 2-12 2(1) 2(1) 2-12
2 2
800 5(3) 3(2) 2-12
5(3) 2-12(2) 2
4(3) 2-12(1) 2
3(2) 2-12(1) 2
2 2-12 2(1) 2(1) 2-12
2(1) 2(1) 2-12
NOTES Valve manufacturers are Kunkle Consolidated or Conbraco depending on availability This table revised 042012
Table A1-14 Steam Boiler Safety Valve Openings
VALVE
SETTING 30 PSIG HW 60 PSIG HW 100 PSIG HW 125 PSIG HW
BOILER HPNO OF
VALVESREQD
OUTLETSIZE(IN)
NO OFVALVESREQD
OUTLETSIZE(IN)
NO OFVALVESREQD
OUTLETSIZE(IN)
NO OFVALVESREQD
OUTLETSIZE(IN)
125 1 2-12 1 2 1 2 1 1-14
150 1 2-12 1 2-12 1 2 1 2
200 2(1) 2-12(1) 1-14
1 2-12 1 2 1 2
250 2 (1) 2(1) 2-12
1 2-12 1 2-12 1 2
300 2 2-12 2(1) 1(1) 2-12
1 2-12 1 2-12
350 3(2) 2-12(1) 1
2(1) 2-12(1) 2
1 2-12 1 2-12
400 3 (1) 2(2) 2-12 2 (1) 2(2) 2-12 2 (1) 1(1) 2-12 1 2-12
500 4 (1) 1(3) 2-12
2 2-12 2(1) 2-12(1) 1-14
2(1) 1(1) 2-12
600 4(3) 2-12(1) 2
3(1) 1-1(2) 2-12
2(1) 2(1) 2-12
2(1) 2-12(1) 1-14
700 amp 800 5 (1) 1(4) 2-12
3(1) 2(2) 2-12
2 2-12 2(1) 2-12(1) 2
NOTES Hot water relief valves are Kunkle 537
Table A1-15 Hot Water Boiler Relief Valve Openings
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 2143
Model CBLE 125-800 HP Boilers
21
BOILER HP A B C D E F G X1 X2 X3
125 6 9 112 39-12 57-12 4 44-12 10 9-34 22-12
150 6 9 136 39-12 57-12 4 44-12 10 9-34 22-12
200 6 9 167 39-12 57-12 4 44-12 10 9-34 22-12
250 6 12 131 46 70 4 56 10 22 22-12
300 6 12 158 46 70 4 56 10 22 22-12
350 6 12 188 46 70 4 56 10 22 22-12
NOTE
All numbers in table are in inches
6-inch high mounting piers recommended for use beneath the boiler base frame The use of these piers provides increased inspection
accessibility to the piping beneath the boiler and added height for washing down the area beneath the boiler
Figure A1-7 Space Required to Open Rear Head on Model CB-LE Boilers Equipped with Davits
BOILER HPDIMENSIONS (INCHES)
A B C D E
CB-125 THRU CB-200 33 55 45 68 32
CB-250 THRU CB-350 42 69 58 86 43
CB-400 THRU CB-800 51 88 71 109 53
Figure A1-8 Model CB-LE Boiler Mounting Piers (60rdquo and 78rdquo)
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 2243
Model CBLE 125-800 HP Boilers
22
BOILER HP A B C D E F G
400 6 14 134 50 78 6-12 58-78
500 6 14 155 50 78 6-12 58-78
600 6 14 187 50 78 6-12 58-78
700-800 6 14 220 50 78 6-12 58-78
NOTE1 All numbers in table are in inches2 6-inch high mounting piers recommended for use beneath the boiler base frame The use of these piers provides in-
creased inspection accessibility to the piping beneath the boiler and added height for washing down the area beneaththe boiler
Figure A1-9 Model CB-LE Boiler Mounting Piers (96rdquo)
CBLE 250-350HP
CBLE 400-800HP
Motor HP Hole Number
75 1
15 1
25 2
40 3
Motor HP Hole Number
10 1
20 1
30 250 2
75 3
Figure A1-10 Front Davit Support
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
23
BOILERHP
VIEW
ALL DIMENSIONS IN INCHES
A B C D E
125 All B 80-14 29-34 70-12 10 3
150 All B 80-14 29-34 83-12 10 3
200 All B 80-14 29-34 114-12 10 3
250Steam B 99 36 72 10 3
Hot Water B 99 36 81 10 3
300
Steam B 99 36 99 10 3
Hot Water B 99 36 108 10 3
350Steam B 99 36 129 10 3
Hot Water B 99 36 138 10 3
400Steam B 119 35-34 78 11 3
Hot Water B 119 35-34 78 11 3
500Steam B 119 35-34 99 11 3
Hot Water B 119 35-34 99 11 3
600Steam B 119 35-34 131 11 3
Hot Water B 119 35-34 131 11 3
700 amp 800Steam B 119 35-34 164 11 3
Hot Water B 119 35-34 164 11 3
NOTE A B and C dimensions may vary by 12 inch
Figure A1-11 Lifting Lug Location Model CB-LE Boilers
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 2443
Model CBLE 125-800 HP Boilers
24
PERFORMANCE DATA
The Low Emission Option provides NOx reduction at current published andpredicted fuel-to-steam efficiencies
Specifying BoilerEfficiency
Cleaver-Brooks offers an industry leading fuel-to-steam boiler efficiency guaranteefor Model CB-LE Firetube Boilers The guarantee is based on the fuel-to-steam
efficiencies shown in the efficiency tables and the following conditions Theefficiency percent number is only meaningful if the specific conditions of theefficiency calculations are clearly stated in the specification (see Cleaver-Brookspublication CB-7768 for a detailed description of efficiency calculations)
When specifying the efficiencies in the tables be sure to include the specificguarantee conditions to maximize the effectiveness of your efficiency specification Ifyou have any questions regarding the efficiency specifications please contact yourlocal Cleaver-Brooks authorized representative
EfficiencySpecification
The boiler manufacturer shall guarantee that at the time of startup the boiler willachieve fuel-to-steam efficiency (as shown in Table A1-16 and Table A1-17) at100 firing rate (add efficiency guarantees at 25 50 and 75 of rating if
required) If the boiler(s) fail to achieve the corresponding guaranteed efficiency aspublished the boiler manufacturer will rebate to the ultimate boiler owner tenthousand dollars ($10000) for every full efficiency point (10) that the actualefficiency is below the guaranteed level
The specified boiler efficiency is based on the following conditions
1 Fuel specification used to determine boiler efficiency
bull Natural Gas
Carbon (wt) = 6998Hydrogen (wt) = 2231Sulfur (wt) = 00
Heating value Btulb = 21830bull No 2 Oil
Carbon (wt) = 858Hydrogen (wt) = 127Sulfur (wt) = 02Heating value Btulb = 19420
No 6 Oil
Carbon (wt) = 866Hydrogen (wt) = 109Sulfur (wt) = 209Heating value Btulb = 18830
2 Efficiencies are based on ambient air temperature of 80 degF relative humidity of30 and 15 excess air in the exhaust flue gas
3 Efficiencies are based on manufacturerrsquos published radiation and convectionlosses (For Cleaver-Brooks radiation and convection losses see BoilerEfficiency Facts Guide publication number CB-7767)
4 Any efficiency verification testing will be based on the stack loss method
For efficiencies and stack temperatures at operating pressures not listed followthese procedures
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
25
When the operating steam pressure is between 10 psig and 125 psig interpolatethe values from the efficiency tables
When the operating steam pressure is above 125 psig estimated efficiency can becalculated as follows
Example
Boiler 350 hpFuel natural gas
Operating steam pressure 200 psig
Find the fuel-to-steam efficiency at 100 firing rate From Table A1-16 for a 350hp boiler operating at 100 firing rate and an operating steam pressure of 125psig the efficiency is 825
Using Figure A1-12 note that the stack temperature increases 36 degF at the higheroperating pressure To estimate boiler efficiency use this rule of thumb For every40 degF increase in stack temperature efficiency decreases by 1 Since the stacktemperature rise is 36 degF the decrease in the boiler efficiency at 200 psig operatingpressure is calculated as follows 3640 =9 Therefore the boiler efficiency at200 psig operating pressure is 825 -9 = 816
Emissions The emission data included in this section consists of typical emission levels forModel CB boilers equipped with 60 30 25 and 20 ppm LE Options when firingnatural gas and No 2 oil
Notice
The data in Table A1-18 and Table A1-19 represent typical emission levels only
Guaranteed emission levels are available from your local Cleaver-Brooks authorized
representative
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Model CBLE 125-800 HP Boilers
26
BOILER
HP
OPERATING PRESSURE = 10 psig OPERATING PRESSURE = 125 psig
OF LOAD OF LOAD
25 50 75 100 25 50 75 100
125 833 836 834 832 804 809 810 810
150 844 846 845 843 815 820 820 821
200 850 853 851 849 822 827 827 827
250 850 847 840 833 820 820 816 813
300 853 853 846 839 826 827 822 819
350 853 857 852 845 826 832 828 825
400 845 847 846 844 818 822 824 822
500 855 857 855 852 828 832 833 831
600 857 860 858 856 829 835 836 835
700 857 862 860 857 830 836 836 836
800 858 861 859 856 831 836 837 835
Table A1-16 Predicted Fuel-to-Steam Efficiencies - Natural Gas
Figure A1-12 Predicted Stack Temperature Increase for Pressure Greater Than 125 psig
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Model CBLE 125-800 HP Boilers
27
Table A1-18 CB-LE Boilers - Natural Gas Emission Levels
POLLUTANT
ESTIMATED LEVEL
60 ppm 30 ppm 25 ppm 20 ppm 15 ppm 9 ppm
CO ppmA
lbMMBtu
50150B
004011
50150B
004011
50150B
004011
50150B
004011
50
004
50
004
NOx ppmA
lbMMBtu
60
007
30
0035
25
003
20
0024
15
0018
9
0011
SOx ppmA
lbMMBtu
1
0001
1
0001
1
0001
1
0001
1
0001
1
0001
HCVOC5 ppmA
lbMMBtu
10
0004
10
0004
10
0004
10
0004
10
0004
10
0004
PM ppmA
lbMMBtu
-
001
-
001
-
001
-
001
-
001
-
001
A ppm levels are given on a dry volume basis and corrected to 3 oxygen (15 excess air)
B CO emission for 60 30 25 amp 20 ppm system is 50 ppm (004 lbMMBtu) when boiler is operating above 50 of rated capacity
CO emission is 150 ppm (011 lbMMBtu) when boiler is operating below 50 of rated capacity
Table A1-17 Predicted Fuel-to-Steam Efficiencies - No 2 Oil
BOILER
HP
OPERATING PRESSURE = 10 psig OPERATING PRESSURE = 125 psig
OF LOAD OF LOAD
25 50 75 100 25 50 75 100
125 867 869 867 866 837 842 843 843
150 878 880 878 876 848 853 853 854
200 884 887 884 882 856 860 860 860
250 883 881 874 867 853 853 849 847
300 886 887 880 873 859 860 855 852
350 886 890 885 878 859 866 861 858
400 879 881 879 876 851 855 856 855
500 889 890 889 886 861 865 866 864
600 890 894 892 890 862 868 869 868
700 891 895 893 891 863 869 870 869
800 892 895 893 890 864 869 870 868
Table A1-19 CB-LE Boilers - No 2 Oil Emission Levels
POLLUTANTESTIMATED LEVEL
60 ppm LE Option 30 25 20 ppm LE Option 15 ppm 9 ppm
CO ppmA
lbMMBtu
50
0039
50
0039
50
0039
50
0039
NOx ppmA
lbMMBtu140
018690
012085
011370
0093
SOx ppmA
lbMMBtu
278
052
278
052
278
052
278
052
HCVOCs ppmA
lbMMBtu
4
0002
4
0002
4
0002
4
0002
PM ppmA
lbMMBtu
-
0025
-
0025
-
0025
-
0025
A ppm levels are given on a dry volume basis and corrected to 3 oxygen (15 excess air)
BASED ON THE FOLLOWING CONSTITUENT LEVELS
Fuel-bound Nitrogen content = 0015 by weight
Sulfur content = 05 by weight
Ash content = 001 by weight
09-09
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28
ENGINEERING DATA
Sound Level Table A1-20 gives a summary of predicted sound pressure levels for Model CBboilers with 30 ppm LE Options Contact your local Cleaver-Brooks authorizedrepresentative for sound levels or other LE Options
Units - The units for the sound level tables are dbA (decibels measured on the A-weighted scale) in reference to 00002 microbars (20 micro-Newtons per square
meter) Their reference are standardly used in specifying and reporting soundpressure levels on industrial equipment
Test Method - The sound pressure levels in the above tables were obtained fromtests in accordance with the ldquoABMA Test Code for the Measurement of Sound fromPackaged Boilersrdquo In accordance with this code the sound pressure levels reportedwere measured on the boiler centerline 4-12 feet vertically above the bottom of thebase rails and 3 feet horizontally in front of the end of the blower motor or frontsurface of the electrical cabinet
Sound Level Meter - The sound level meter used complies with ANSI S14 Type 1(Precision) The readings are taken with the meter set for slow response andcorrected for background levels
Sound Pressure - The large size boilers the need for auxiliary equipment and thenecessary interconnecting piping make it impractical (and sometimes impossible) toprovide a boiler testing environment which is suitable for taking the data needed todevelop Sound Pressure Power levels
Typical Values - Sound pressure levels (dbA) for the same boiler will vary betweenboiler rooms Sound levels will vary with motor type NOx levels and altitudes Inaddition variations will occur between different people using different sound meterson the same boiler And finally no two boilers can be expected to give precisely thesame sound levels For these reasons we can only predict but not guarantee soundlevels (dbA)
BOILER HP 125 150 200 250 300 350 400 500 600 700 800
HFO dbA 84 84 84 83 84 85 84 85 85 88 90
LFO dbA 82 82 83 81 82 83 82 83 83 84 89
HFG dbA 82 82 83 82 83 84 83 83 85 87 90
LFG dbA 81 81 82 81 82 83 81 81 82 84 88
NOTES1 Sound pressure levels measured on boilers operating in various locations and ex-
pressed in dbA are as shown2 Based on standard altitude fans and fan motors 60 Hz3 Contact your local Cleaver-Brooks authorized representative for sound levels of 60 25or 20 ppm LE Options
ABBREVIATIONS
HF = High Fire LF = Low Fire O = Oil G = Gas
Table A1-20 Model CBLE Predicted Sound Levels 30 ppm NOx Systemss
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Model CBLE 125-800 HP Boilers
29
Gas-Fired Burners Table A1-21 shows gas pressure with standard over- and undersized gas trains
Table A1-22 shows minimum required gas pressure altitude conversion
Figure A1-13 shows standard gas train sizes and locations for Model CB FiretubeBoilers
Figure A1-14 shows typical gas train piping layouts for multiple boiler applications
Figure A1-15 shows standard gas train components
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Model CBLE 125-800 HP Boilers
30
Table A1-21 Standard Undersize and Oversize Gas Trains
CBLE
BOILER HP GAS TRAINSIZE
UPSTREAMVALVE
DOWNSTREAMVALVE
EMISSIONS LEVEL 09 ppm 15 ppm 20 ppm 30 ppm 60 ppm UC
125 HP 15 in BB BB 33 - 49 psi 33 - 49 psi 08 - 50 psi 07 - 50 psi 07 - 50 psi 07 - 50 ps
125 HP 15 in PC PC 34 - 50 psi 34 - 50 psi 09 - 50 psi 08 - 50 psi 08 - 50 psi 08 - 50 ps
125 HP 20 in BB BB 31 - 33 psi 31 - 33 psi 06 - 08 psi 06 - 07 psi 05 - 07 psi 05 - 07 ps
125 HP 20 in PC PC 31 - 34 psi 31 - 34 psi 06 - 09 psi 06 - 08 psi 06 - 08 psi 05 - 08 ps
125 HP 25 in PC PC 30 - 31 psi 30 - 31 psi 04 - 06 psi 04 - 06 psi 04 - 05 psi 04 - 05 ps
125 HP 30 in PC PC 29 - 30 psi 29 - 30 psi 04 - 04 psi 04 - 04 psi 04 - 04 psi 03 - 04 ps
125 HP 40 in PC PC 29 - 29 psi 29 - 29 psi 04 - 04 psi 03 - 04 psi 03 - 04 psi 03 - 03 ps
150 HP 15 in BB BB 37 - 55 psi 39 - 58 psi 10 - 47 psi 09 - 50 psi 09 - 50 psi 09 - 50 ps
150 HP 15 in PC PC 38 - 57 psi 40 - 60 psi 11 - 42 psi 11 - 50 psi 10 - 50 psi 10 - 50 ps
150 HP 20 in BB BB 34 - 37 psi 36 - 39 psi 07 - 10 psi 06 - 09 psi 06 - 09 psi 06 - 09 ps
150 HP 20 in PC PC 34 - 38 psi 36 - 40 psi 07 - 11 psi 07 - 11 psi 07 - 10 psi 06 - 10 ps
150 HP 25 in PC PC 32 - 34 psi 34 - 36 psi 05 - 07 psi 04 - 06 psi 04 - 06 psi 04 - 06 ps
150 HP 30 in PC PC 32 - 32 psi 34 - 34 psi 04 - 05 psi 04 - 04 psi 04 - 04 psi 03 - 04 ps
150 HP 40 in PC PC 31 - 32 psi 33 - 34 psi 04 - 04 psi 03 - 04 psi 03 - 04 psi 03 - 03 ps
200 HP 15 in BB BB 46 - 69 psi 50 - 75 psi 16 - 50 psi 15 - 50 psi 15 - 50 ps
200 HP 15 in PC PC 48 - 72 psi 52 - 78 psi 18 - 50 psi 17 - 50 psi 17 - 50 ps
200 HP 20 in BB BB 41 - 46 psi 45 - 50 psi 10 - 16 psi 10 - 15 psi 10 - 15 ps
200 HP 20 in PC PC 41 - 48 psi 45 - 52 psi 11 - 18 psi 11 - 17 psi 10 - 17 ps
200 HP 25 in PC PC 38 - 41 psi 42 - 45 psi 07 - 10 psi 07 - 10 psi 06 - 10 ps
200 HP 30 in PC PC 36 - 38 psi 40 - 42 psi 06 - 07 psi 05 - 07 psi 05 - 06 ps
200 HP 40 in PC PC 36 - 36 psi 40 - 40 psi 05 - 06 psi 05 - 05 psi 04 - 05 ps
250 HP 15 in BB BB 41 - 62 psi 44 - 67 psi 24 - 50 psi 24 - 27 psi 24 - 26 psi 23 - 26 ps
250 HP 15 in PC PC 45 - 67 psi 48 - 72 psi 28 - 50 psi 27 - 28 psi 27 - 27 psi 27 - 27 ps
250 HP 20 in BB BB 33 - 38 psi 37 - 41 psi 16 - 24 psi 16 - 24 psi 16 - 24 psi 15 - 23 ps
250 HP 20 in PC PC 34 - 40 psi 37 - 43 psi 17 - 28 psi 17 - 27 psi 16 - 27 psi 16 - 27 ps
250 HP 25 in PC PC 29 - 33 psi 32 - 37 psi 11 - 16 psi 11 - 16 psi 11 - 16 psi 10 - 15 ps
250 HP 30 in PC PC 27 - 29 psi 31 - 32 psi 09 - 11 psi 09 - 11 psi 09 - 11 psi 09 - 10 ps
250 HP 40 in PC PC 26 - 27 psi 29 - 31 psi 08 - 09 psi 08 - 09 psi 08 - 09 psi 08 - 09 ps
300 HP 15 in - 20 in BB BB 55 - 83 psi 57 - 85 psi 30 - 50 psi 30 - 36 psi 30 - 35 psi 30 - 35 ps
300 HP 15 in - 20 in PC PC 58 - 87 psi 60 - 90 psi 33 - 50 psi 33 - 37 psi 33 - 36 psi 33 - 36 ps
300 HP 20 in BB BB 46 - 55 psi 47 - 57 psi 21 - 30 psi 21 - 30 psi 20 - 30 psi 20 - 30 ps
300 HP 20 in PC PC 47 - 58 psi 48 - 60 psi 22 - 33 psi 22 - 33 psi 21 - 33 psi 21 - 33 ps
300 HP 30 in PC PC 39 - 46 psi 40 - 47 psi 13 - 21 psi 13 - 21 psi 12 - 20 psi 12 - 20 ps
300 HP 40 in PC PC 37 - 39 psi 39 - 40 psi 11 - 13 psi 11 - 13 psi 10 - 12 psi 10 - 12 ps
350 HP 15 in - 20 in BB BB 64 - 90 psi 62 - 90 psi 42 - 50 psi 42 - 50 psi 41 - 50 psi 41 - 50 ps
350 HP 15 in - 20 in PC PC 68 - 90 psi 66 - 90 psi 46 - 50 psi 46 - 50 psi 45 - 50 psi 45 - 50 ps
350 HP 20 in BB BB 54 - 64 psi 53 - 62 psi 32 - 42 psi 32 - 42 psi 32 - 41 psi 31 - 41 ps
350 HP 20 in PC PC 56 - 68 psi 54 - 66 psi 34 - 46 psi 34 - 46 psi 33 - 45 psi 33 - 45 ps
350 HP 25 in PC PC 43 - 54 psi 42 - 53 psi 21 - 32 psi 21 - 32 psi 20 - 32 psi 20 - 31 ps
350 HP 30 in PC PC 40 - 43 psi 38 - 42 psi 17 - 21 psi 17 - 21 psi 17 - 20 psi 16 - 20 ps
350 HP 40 in PC PC 37 - 40 psi 36 - 38 psi 15 - 17 psi 15 - 17 psi 14 - 17 psi 14 - 16 ps
400 HP 15 in - 20 in BB BB 69 - 90 psi 69 - 90 psi 46 - 50 psi 46 - 50 psi 45 - 50 psi 45 - 50 ps
400 HP 15 in - 20 in PC PC 74 - 90 psi 75 - 90 psi 51 - 87 psi 51 - 77 psi 51 - 77 psi 51 - 77 ps
400 HP 20 in BB BB 55 - 69 psi 56 - 69 psi 32 - 46 psi 32 - 46 psi 32 - 45 psi 32 - 45 ps
400 HP 20 in PC PC 57 - 74 psi 58 - 75 psi 34 - 50 psi 34 - 50 psi 34 - 50 psi 34 - 50 ps
400 HP 25 in PC PC 41 - 55 psi 42 - 56 psi 18 - 32 psi 18 - 32 psi 18 - 32 psi 18 - 32 ps
400 HP 30 in PC PC 37 - 41 psi 38 - 42 psi 13 - 18 psi 13 - 18 psi 13 - 18 psi 13 - 18 ps
400 HP 40 in PC PC 34 - 37 psi 35 - 38 psi 11 - 13 psi 10 - 13 psi 10 - 13 psi 10 - 13 ps
500 HP 20 in - 25 in BB PC 58 - 76 psi 58 - 76 psi 46 - 50 psi 46 - 50 psi 45 - 50 psi 45 - 50 ps
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Model CBLE 125-800 HP Boilers
31
BB = Butter Ball PC = Plug Cock
NOTE In cases where the gas train increases in size after the regulating valve two diameters are listed The first number is the customer connection size
500 HP 20 in - 25 in PC PC 60 - 83 psi 60 - 83 psi 48 - 50 psi 47 - 50 psi 47 - 50 psi 47 - 50 psi
500 HP 25 in PC PC 39 - 58 psi 39 - 58 psi 27 - 46 psi 27 - 46 psi 27 - 45 psi 26 - 45 psi
500 HP 30 in PC PC 33 - 39 psi 33 - 39 psi 20 - 27 psi 20 - 27 psi 20 - 27 psi 20 - 26 psi
500 HP 40 in PC PC 28 - 33 psi 28 - 33 psi 16 - 20 psi 16 - 20 psi 15 - 20 psi 15 - 20 psi
600 HP 20 in - 25 in BB PC 80 - 90 psi 80 - 90 psi 65 - 90 psi 65 - 90 psi 64 - 89 psi 63 - 88 psi
600 HP 20 in - 25 in PC PC 82 - 90 psi 82 - 90 psi 67 - 100 psi 67 - 100 psi 66 - 99 psi 66 - 99 psi
600 HP 25 in PC PC 54 - 80 psi 54 - 80 psi 39 - 50 psi 38 - 50 psi 38 - 50 psi 37 - 50 psi
600 HP 25 in - 30 in PC PC 52 - 54 psi 52 - 54 psi 37 - 39 psi 36 - 38 psi 35 - 38 psi 35 - 37 psi
600 HP 30 in PC PC 43 - 52 psi 43 - 52 psi 28 - 37 psi 27 - 36 psi 27 - 35 psi 26 - 35 psi
600 HP 40 in PC PC 37 - 43 psi 37 - 43 psi 22 - 28 psi 21 - 27 psi 20 - 27 psi 20 - 26 psi
700 HP 20 in - 30 in BB PC 110 - 150 psi 107 - 150 psi 87 - 131 psi 86 - 130 psi 86 - 129 psi 86 - 128 psi
700 HP 20 in - 30 in PC PC 113 - 150 psi 110 - 150 psi 90 - 135 psi 89 - 134 psi 89 - 134 psi 89 - 133 psi
700 HP 25 in - 30 in PC PC 71 - 90 psi 68 - 90 psi 48 - 50 psi 47 - 50 psi 47 - 50 psi 46 - 50 psi
700 HP 30 in PC PC 60 - 71 psi 57 - 68 psi 36 - 48 psi 36 - 47 psi 35 - 47 psi 35 - 46 psi
700 HP 40 in PC PC 51 - 60 psi 48 - 57 psi 28 - 36 psi 27 - 36 psi 27 - 35 psi 26 - 35 psi
800 HP 20 in - 30 in BB PC 108 - 150 psi 107 - 150 psi 106 - 150 psi
800 HP 20 in - 30 in PC PC 112 - 150 psi 111 - 150 psi 110 - 150 psi800 HP 25 in - 30 in PC PC 61 - 90 psi 60 - 100 psi 59 - 100 psi
800 HP 30 in PC PC 48 - 61 psi 47 - 50 psi 46 - 50 psi
800 HP 40 in PC PC 35 - 48 psi 34 - 47 psi 34 - 46 psi
Standard Gas Train size is highlighted
Table A1-21 Standard Undersize and Oversize Gas Trains (Continued)
CBLE
BOILER HP GAS TRAINSIZE
UPSTREAMVALVE
DOWNSTREAMVALVE
EMISSIONS LEVEL 09 ppm 15 ppm 20 ppm 30 ppm 60 ppm UC
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Model CBLE 125-800 HP Boilers
32
ALTITUDE(FT)
CORRECTIONFACTOR
ALTITUDE(FT)
CORRECTIONFACTOR
1000 104 6000 1252000 107 7000 130
3000 111 8000 135
4000 116 9000 140
5000 121 - -
To obtain minimum required gas pressure at altitudesabove 700 feet multiply the pressure by the listed factorsInches WC x 0577 = ozsq-inOzsq-in x 1732 = Inches WCInches WC x 00361= psigOzsq-in x 00625 = psigPsig x 2771 = Inches WCPsig x 160 = Ozsq-in
Table A1-22 Minimum Required Regulated Gas Pressure
Altitude Conversion
BOILERHP
TYPE OF GAS AND HEAT CONTENT
NATURAL GAS1000 (Btucu-ft)
PROPANE GAS2550 (Btucu-ft)
125 5103 2000
150 6124 2402
200 8165 3202
250 10206 4002
300 12247 4802
350 14280 5600
400 16329 6404
500 20415 8006
600 24494 9605
700 28576 11206
800 32659 12807
Table A1-23 Maximum Gas Consumption (CFH)
for Natural Gas and Propane Vapor
BOILER
HP
MODEL CB
CONNECTION SIZE
(IN NPT)
LOCATIONDIMENSION
ldquoArdquo (IN)
125-200 1-12 52
250-350 2 56
400 2 58
500 2-12 60
600 2-12 - 3 71
700-800 3 65
Figure A1-13 Standard Gas Train Connection Size and Location
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Model CBLE 125-800 HP Boilers
33
Oil-Fired Burners Fuel oil consumption information is shown on the boiler rating sheets in theDimensions and Rating Section
Figure A1-16 shows the oil connection sizes and locations for Model CB Boilersfiring No 2 oil
Figure A1-17 through Figure A1-18 show typical oil systems and layouts
Figure A1-19 and Figure A1-20 show the detail of an oil transfer tank (day tank)typically utilized to provide a storage reservoir between the oil system supply pumpand the boiler oil pump
General BoilerInformation
Table A1-24 shows blowdown tank sizing information
Table A1-25 provides heating surface information
Table A1-26 provides steam volume and disengaging area information
Table A1-27 provides recommended steam nozzle sizes
Table A1-28 provides recommended non-return valve sizes
Boiler RoomInformation
Figure A1-21 shows typical boiler room length requirements
Figure A1-22 shows typical boiler room width requirements
Figure A1-23 shows typical breeching arrangements
Stack SupportCapabilities
All standard Cleaver-Brooks Firetube Boilers with an LE option can support up to2000 lbs without additional support
LE Boilers 250 hp through 800 hp can be reinforced to support 3000 lbs
StackBreechingSize Criteria
The design of the stack and breeching must provide the required draft at each boilerflue gas outlet Proper draft is critical to burner performance
Although constant pressure at the flue gas outlet of the Model CB-LE is not requiredit is necessary to size the stackbreeching to limit flue gas pressure variation Theallowable pressure range is ndash025 WC to +025 WC
For additional information please review Section I4 General Engineering Data(Stacks) and Section F Stacks Stack and breeching sizes should always be providedby a reputable stack supplier who will design the stack and breeching system basedon the above criteria Your local Cleaver-Brooks authorized representative is capableof assisting in your evaluation of the stackbreeching design
Boiler RoomCombustion Air
When determining boiler room air requirements the size of the room air flow andvelocity of air must be reviewed as follows
1 Size (area) and location of air supply openings in boiler room
A Two (2) permanent air supply openings in the outer walls of the boiler room
are recommended Locate (1) at each end of the boiler room preferablybelow a height of 7 feet This allows air to sweep the length of the boiler
B Air supply openings can be louvered for weather protection but they shouldnot be covered with fine mesh wire as this type of covering has poor air flowqualities and is subject to clogging by dust or dirt
C A vent fan in the boiler room is not recommended as it could create a slightvacuum under certain conditions and cause variations in the quantity ofcombustion air This can result in unsatisfactory burner performance
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Model CBLE 125-800 HP Boilers
34
D Under no condition should the total area of the air supply openings be lessthan (1) square foot
E Size the openings by using the formulaArea (sq-ft) = CFMFPM
2 Amount of air required (cfm)
A Combustion Air = Rated bhp x 8 cfmbhp
B Ventilation Air = Maximum bhp x 2 cfmbhp
C Total recommended air = 10 cfmbhp - up to 1000 feet elevation Add 3percent more per 1000 feet of added elevation
3 Acceptable air velocity in Boiler Room (fpm)
A From floor to (7) foot height - 250 fpm
B Above (7) foot height - 500 fpm
Example Determine the area of the boiler room air supply openings for (1) 300 hpboiler at 800 feet altitude The air openings are to be 5 feet above floor level
bull Air required 300 x 10 = 3000 cfm (from 2B above)
bull Air velocity Up to 7 feet = 250 fpm (from 3 above)
bull Area Required Area = cfm = 3000250 = 12 sq-ft total
bull AreaOpening 122 = 6 sq-ftopening (2 required)
Notice
Consult local codes which may supersede these requirements
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Model CBLE 125-800 HP Boilers
35
This figure illustrates the basic gas valve arrangement on Cleaver-BrooksModel CB boiler and shows the contractors connection point The valves andcontrols between the contractor connection point and the gas main in thestreet are representative of a typical installation Actual requirements mayvary depending on local codes or local gas company requirements which
should be investigated prior to preparation of specifications and prior to con-struction
A Utilities service valveB Utilities service regulatorC Gas meterD Piping from meter to boiler
The size of the gas line from the meter to the gas pressure regulator at theboiler can be very important if gas pressures are marginal The gas line sizingis dependent on
1 Gas pressure at outlet of gas meter (C)2 Rate of gas flow required CFH3 Length of pipe run (D)4 Pressure required at contractor connection point
The local gas utility will advise the pressure that is available at the outlet oftheir meter
Figure A1-14 Typical Gas Piping Layout
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Model CBLE 125-800 HP Boilers
36
5
6
S
1
3
42
PILOT GAS LINE
S
S
MAIN GAS LINE
M M
ToBurner
GasSupply
11
10
97
12138
14 15
FLOW
FLOW
Figure A1-15 Model CB-LE Gas Train Components
BOILER
HP
MODEL CB
SUPPLYANDRE-
TURNCONN SIZES
(IN)(NPT)
A(IN)
RECOMMENDED OIL LINEA
SIZES(STANDARD PIPE)
(IN - IPS)
STOR-AGE
TANK TOBOILER
OR PUMPCONNECT
PUMPTO
BOILER
RE-TURN
LINE TOTANK
125150 200
34 12-12 1 1 1
250300350
34 34 1 1 1
400500600
34 11-34 1 1 1
700800
1 11-34 1 1 1
NOTE See No 2 Oil Line Sizing Instruction for systems with other conditions A For suction line condition with a maximum of 10 Feet of lift and a
total of 100 feet of suction line
Figure A1-16 No2 Oil Connection Size Location and Recommended Line Sizes
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Model CBLE 125-800 HP Boilers
37
Figure A1-17 No 2 Oil Piping Single Boiler
Installation Remote Oil Pump
Figure A1-18 No 2 Oil Piping Multiple Boiler
Installation Remote Oil Pumps
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Model CBLE 125-800 HP Boilers
38
Figure A1-19 No 2 Oil Piping Multiple Boiler
Installation
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Model CBLE 125-800 HP Boilers
39
Figure A1-20 No 2 Oil Piping Typical Arrangement
Table A1-24 Model CB-LE Blowdown
Tank Sizing
BOILER HP WATER (GAL)
125 97
150 118
200 145
250 146
300 176
350 210
400 177
500 209
600 250
700 800 296
NOTE Quantity of water removed from boiler by lowering normal water line 4
BOILER
HP
HEATING SURFACE (SQ-FT)
FIRESIDE WATERSIDE
125 625 679
150 750 820
200 1000 1092
250 1250 1346
300 1500 1623
350 1750 1932
400 2000 2151
500 2500 2691
600 3000 3262
700 800 3500 3810
Table A1-25 Heating Surface Model CB-LE
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Model CBLE 125-800 HP Boilers
40
BOILER HPSTEAM VOLUME CU-FT
STEAM DISENGAGING AREASQ-IN
HIGH PRESSUREA LOW PRESSUREB HIGH PRESSUREA LOW PRESSUREB
125 254 366 5371 5887
150 307 443 6511 7138
200 377 544 7985 8752
250 492 706 7980 8695
300 595 853 9651 10516
350 709 1017 11507 12538
400 721 979 9793 10593
500 837 1137 11376 12303
600 1015 1378 13787 14911
700-800 1198 1627 16273 17600
NOTE Based on normal water levelA Based on 150 psig design pressureB Based on 15 psig design pressure
Table A1-26 Steam Volume and Disengaging Area
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 4143
Model CBLE 125-800 HP Boilers
41
BOILERHP
BOILERCAPACITY(LBSHR)
OPERATING PRESSURES (PSIG)
50 75 100 125 150 175 200 250
100 3450
2-12 2-12 NA NA NA NA NA NA
125 4313 3 2-12 2-12 2-12 NA NA NA NA
150 5175 3 3 2-12 2-12 2-12 2-12 NA NA
200 6900 3 3 3 3 3 2-12 2-12 2-12
250 8625 4 3 3 3 3 3 3 3
300 10350 4 4 4 3 3 3 3 3
350 12025 4 4 4 4 4 3 3 3
400 13800 5 4 4 4 4 4 4 3
500 17210 6 5 5 4 4 4 4 4
600 20700 6 6 5 5 5 4 4 4
700 24150 6 6 6 5 5 5 5 4
800 27600 6 6 6 6 6 5 5 5
NOTE Valve sizes (300 Flanges) given in inchesStandard Non-Return valve selections limited to a maximum 2 to 1 turndown(50 of full load) selections based on typical non-return valve sizing recommen-dations For final valve selection contact your C-B authorized representative Forhigh turndown applications see Boiler Book Section I3 Table I3-3 Indicates pressure drop of less than 75 psig All other selections are less than6 psig pressure drop
Boiler HP
OPERATINGPRESSURE
PSIG125 150 200 250 300 350 400 500 600 700 800
15 8 8 10 10 12 12 12 12 12 12 12
30 6 6 8 8 8 10 10 10 12 12 12
40 6 6 6 8 8 8 10 10 10 12 12
50 6 6 6 6 8 8 8 10 10 10 12
75 4 4 6 6 6 8 8 8 8 10 10
100 4 4 6 6 6 6 6 8 8 8 10
125 4 4 4 6 6 6 6 8 8 8 8
150 3 3 4 4 6 6 6 6 6 8 8
200 25 3 4 4 4 4 6 6 6 6 6
250 25 3 3 4 4 4 4 6 6 6 6
NOTES1 Steam nozzle sizes given in inches2 Recommended steam nozzle sizes based on 4000 to 5000 fpm steam velocity3 All standard steam nozzle sizes for 150 psig design pressure or greater are the sameas 125 psig operating pressure on the above table To increase or decrease the standardsize request the change with your local Cleaver-Brooks authorized representative4 Shaded area denotes special surge load baffles must be installed to avoid possible wa-ter carry-over5 For incremental operating pressures see Table I3-1 Steam Systems Fundamentals
Table A1-28 Recommended Steam Nozzle Size (for
4000 to 5000 fpm nozzle velocity)
Table A1-29 Recommended Non-Return Valve Size
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 4243
Model CBLE 125-800 HP Boilers
42
1 Shortest boiler room length (Dwg A) is obtained by allowing for possible future tube replacement (from front or rearof boiler) through a window or doorway Allowance is only made for minimum door swing at each end of the boilerThis arrangement provides sufficient aisle space at the front of the boiler but a ldquotightrdquo space condition at the rear
If space permits approximately 15 additional feet should be allowed at the rear for additional aisle and workingspace
2 Next shortest boiler room length (Dwg B) is obtained by allowing for possible future tube replacement from thefront of the boiler Allowance is only made for minimum door swing at the rear
If space permits approximately 15 additional feet should be allowed at the rear for additional aisle and workingspace
3 A slightly longer boiler room (Dwg C) is obtained by allowing for possible future tube replacement from the rear ofthe boiler Allowance for door swing at the front provides sufficient aisle and working space at the front
Figure A1-21 Boiler Room Length (Typical Layouts)
BOILER HP 125-200 250-350 400-800
Dimension A 82 93 102
Dimension B 115 141 171
NOTES1 Recommended Minimum Distance Between Boiler and Wall Dimen-
sion ldquoArdquo allows for a ldquoclearrdquo 42 aisle between the water col-umn on the boiler and the wall If space permits this aisle
should be widened 2 Recommended Minimum Distance Between BoilersDimension ldquoBrdquo between boilers allows for a ldquoclearrdquo aisle of42 - 125 -200 hp48 - 250-350 hp60 - 400-800 hpIf space permits this aisle should be widened
Figure A1-22 Boiler Room Width (Typical Layout)
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 4343
Model CBLE 125-800 HP Boilers
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 843
Model CBLE 125-800 HP Boilers
8
A
BC
D
E
F
G
H I J
K
L
M
N
O
P QR S
T
UV
W
X
Y
AA
BBCC
DD
EE
FF
GG
HH
HH
JJ
JJ
KK
GG
GG
Y
FARSIDE
(measurements shown in inches)
Description DIM
Boiler HP
250 300 350
LENGTHS
Length Overall A 1915 220 250
Shell B 144 171 201
Front Head Extension C 235 25 25
Front Ring Flange to Nozzle - 15 D 90 98 112
Front Ring Flange to Nozzle - 150 D 88 98 112
Rear Head Extension E 24 24 24
Front Ring Flange to Panel G 17 23 23
Ring Flange to Base H 05 05 05
Base Frame I 131 158 188
Rear Flange Ring to Base J 125 125 125
HEIGHTS
Ht Overall K 115 115 115
Base to Vent Outlet L 106 106 106Base to Boiler Centerline M 56 56 56
Base to Gas Train N 10 10 10
Base to Panel Top T 77 77 77
Base to Panel Bottom U 17 17 17
Height of Base V 12 12 12
Base to Steam Nozzle Y 10150 10150 10150
Table A1-4 Model CB-LE Steam Boiler Dimensions
78rdquo (15 - 150 psig Design Pressure) - Sheet 1 of 2
Figure A1-2 CB-LE Steam - 250-350 HP
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 943
Model CBLE 125-800 HP Boilers
9
Description DIM Boiler HP
250 300 350
WIDTHS
Width Overall O 1065 1065 10875Center to ALWCO P 485 485 485
Center to Outside Control Panel Q 58 58 58
Center to Lagging R 42 42 42
Center to WC S 5375 5375 5375
Base Inside W 56 56 56
Base Outside X 64 64 64
Boiler ID F 78 78 78
CONNECTIONS
Electric - Main Power Supply AA 460 3 60 460 3 60 460 3 60
Surface Blowoff (with collector pipe) BB 1 1 1
Steam Outlet 15 (150 Flange) CC 12 12 12
Steam Outlet 150 (300 Flange) CC 6 6 6
Chemical Feed FF 1 1 1
Feed Water (2) GG 2 2 25Blowdown (2) 150 HH 15 15 15
Drain (2) 15 HH 2 2 2
Water Column Blowdown JJ 075 075 075
Gauge Glass Blowdown KK 025 025 025
VENT STACK
Diameter (OD) (flgd connection) 20 20 20
CLEARANCES
Rear Door Swing 43 43 43
Front Door Swing 89 89 89
Tube Removal Rear 131 157 187
Tube Removal Front 116 142 172
MINIMUM BOILER ROOM LENGTH ALLOWING FOR DOOR SWING AND TUBE REMOVAL
From Rear of Boiler 364 417 477
From Front of Boiler 303 356 416
Through Window or Doorway 275 302 332
WEIGHT IN LBS
Normal Water Capacity 10670 13000 15465
Approx Ship Wt 15 psig 21500 23600 26800
Approx Ship Wt 150 psig 22800 25200 27800
Approx Ship Wt 200 psig 24600 27200 29300
Table A1-4 Model CB-LE Steam Boiler Dimensions 78rdquo (15 - 150 psig Design Pressure) - Sheet 2 of 2
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 1043
Model CBLE 125-800 HP Boilers
10
A
BC
D
E
F
G
HI J
K
AA
BB CC
DD
EE
FF
JJ
GG
HH HH
L
M
N
O
P Q
R S
T
UV
W
X
Y
JJ
JJ
KK
GGGG
Y
FARSIDE
Table A1-5 Model CB-LE Steam Boiler Dimensions
96rdquo (15 - 150 psig Design Pressure) - Sheet 1 of 2
(measurements shown in inches)
Description DIMBoiler HP
400 500 600 700 800
LENGTHS
Length Overall A 20575 22775 25975 29875 29875
Shell B 14675 1675 19975 23275 23275
Front Head Extension C 27 28 28 34 34
Front Ring Flange to Nozzle - 15 D 98 101 96 112 112
Front Ring Flange to Nozzle - 150 D 96 100 96 112 112
Rear Head Extension E 32 32 32 32 32
Front Ring Flange to Panel G 26 26 26 26 26
Ring Flange to Base H 05 05 05 05 05
Base Frame I 13375 15475 18675 21975 21975
Rear Flange Ring to Base J 125 125 125 125 125
Figure A1-3 CB-LE Steam - 400-800 HP
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 1143
Model CBLE 125-800 HP Boilers
11
Description DIM Boiler HP
400 500 600 700 800
HEIGHTS
Ht Overall K 134 134 134 134 134Base to Vent Outlet L 126 126 126 126 126
Base to Boiler Centerline M 67 67 67 67 67
Base to Gas Train N 12 12 12 12 12
Base to Panel Top T 75 75 75 75 75
Base to Panel Bottom U 15 15 15 15 15
Height of Base V 12 12 12 12 12
Base to Steam Nozzle Y 1215 1235 1215 121 121
WIDTHS
Width Overall O 124 12425 124 124 124
Center to ALWCO P 575 575 575 575 575
Center to Outside Control Panel Q 665 665 665 665 665
Center to Lagging R 51 51 51 51 51
Center to WC S 63 63 63 63 63
Base Inside W 5888 5888 5888 5888 5888
Base Outside X 7188 7188 7188 7188 7188
Boiler ID F 96 96 96 96 96
CONNECTIONS
Electric - Main Power Supply AA 460 3 60 460 3 60 460 3 60 460 3 60 460 3 60
Surface Blowoff (with collector pipe) BB 1 1 1 1 1
Steam Outlet 15 (150 Flange) CC 12 12 12 12 12
Steam Outlet 150 (300 Flange) CC 6 8 8 8 8
Chemical Feed FF 1 1 1 1 1
Feed Water (2) GG 25 25 25 25 25
BlowdownDrain (2) HH 2 2 2 2 2
Water Column Blowdown JJ 075 075 075 075 075
Gauge Glass Blowdown KK 025 025 025 025 025
VENT STACK
Diameter (OD) (flgd connection) 24 24 24 24 24
CLEARANCES
Rear Door Swing 53 53 53 53 53Front Door Swing 108 108 108 108 108Tube Removal Rear 131 152 184 217 217
Tube Removal Front 114 135 167 200 200
MINIMUM BOILER ROOM LENGTH ALLOWING FOR DOOR SWING AND TUBE REMOVAL
From Rear of Boiler 386 428 492 558 558
From Front of Boiler 314 356 420 486 486
Through Window or Doorway 308 329 361 394 394
WEIGHT IN LBS
Normal Water Capacity 14810 15950 19270 23000 23000
Approx Ship Wt 15 psig 33500 37110 42300 49500 49600 Approx Ship Wt 150 psig 36570 39970 45025 52050 52150
Approx Ship Wt 200 psig 39680 43580 49400 57315 57415
Table A1-5 Model CB-LE Steam Boiler Dimensions
96rdquo (15 - 150 psig Design Pressure) - Sheet 2 of 2
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 1243
Model CBLE 125-800 HP Boilers
12
BOILER HP DIM 125 150 200
LENGTHS
Overall (60 ppm System) A 171-12 196-12 228-12
Shell B 125 149 180
Base Frame C 112 136 167
Front Head Extension (60 ppm System) D 27 28 29
Rear Head Extension E 19-12 19-12 19-12
Front Ring Flange to Outlet HH 114 136 167
Front Ring Flange to Return H 89 102 131
Ring Flange to Base F 12 12 12
Over Tubesheets V 113 137 168
Shell Extension P 12 12 12
Rear Flange Ring to Base G 12-12 12-12 12-12
Table A1-6 Model CB-LE Hot Water Boiler Dimensions
60rdquo (30 and 125 psig Design Pressure) - Sheet 1 of 2
Figure A1-4 CB-LE Hot Water - 125-200 HP
R
F G
WW
P
BB
D E
GG
Q
Z
Y T U
RR - RF - RD
X
HH
A
B
HI
L K
OO O
KK
M
N
EE
FF
DD
V
J
C
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 1343
Model CBLE 125-800 HP Boilers
13
BOILER HP DIM 125 150 200
WIDTHS
Overall I 75-12 75-12 75-12
ID Boiler J 60 60 60
Center to Entrance Box K 42-12 42-12 42-12
Center to Outside Hinge KK 35 35 35
Center to Lagging L 33 33 33
Base Outside M 52-12 52-12 52-12
Base Inside N 44-12 44-12 44-12
HEIGHTS
Overall OO 87 87 87
Base to Vent Outlet O 87 87 87
Base to Return and Outlet X 82-38 82-38 82-38
Height of Base Q 12 12 12
Base to Bottom of Boiler R 16 16 16
BOILER CONNECTION
Auxiliary Connection Z 1 1 1
Water Return Flange T 6A 6A 6A
Water Outlet Flange (2 Dip Tube Included) U 6A 6A 6A
Drain Front and Rear W 1-12 1-12 2
Air Vent Y 1-12 1-12 1-12
VENT STACK
Diameter (flgd connection) BB 16 16 16
MINIMUM CLEARANCES
Rear Door Swing DD 32 32 32
Front Door Swing EE 67 67 67
Tube Removal Rear FF 115 139 170Tube Removal Front GG 103 127 158
MINIMUM BOILER ROOM LENGTH ALLOWING FOR DOOR SWING AND TUBE REMOVAL FROM
Rear of Boiler RR 307 355 417
Front of Boiler RF 260 308 370
Thru Window or Doorway RD 224 248 279
WEIGHT IN LBS
Water Capacity Flooded 7670 9295 11130
Approx Ship Wgt ndash 30 psigApprox Ship Wgt ndash 125 psig
1140011800
1250012900
1450014900
NOTES All connections are threaded unless indicatedA ANSI 150 psig flange
Table A1-6 Model CB-LE Hot Water Boiler Dimensions
60rdquo (30 and 125 psig Design Pressure) - Sheet 2 of 2
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 1443
Model CBLE 125-800 HP Boilers
14
BOILER HP DIM 250 300 350
LENGTHS
Overall (60 ppm System) A 191-12 220 252
Shell B 144 171 201
Base Frame C 131 158 188
Front Head Extension (60 ppm System) D 23-12 25 27
Rear Head Extension E 24 24 24
Front Ring Flange to Return H 103-12 130 160
Front Ring Flange to Outlet HH 131 158 188
Ring Flange to Base F 12 12 12
Over Tubesheets V 129 156 186
Shell Extension P 15 15 15
Rear Flange Ring to Base G 12-12 12-12 12-12
Table A1-7 Model CB-LE Hot Water Boiler Dimensions78rdquo (30 and 125 psig Design Pressure) - Sheet 1 of 2
Figure A1-5 CB-LE Hot Water 250-350 HP
s k o o r B r e v a
e l C
R
F G
WW
P
BB
D E
GG
Q
Z
Y T U
RR - RF - RD
X
HH
A
B
HI
L K
OOO
KK
M
N
EE
FF
DD
V
J
C
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 1543
Model CBLE 125-800 HP Boilers
15
BOILER HP DIM 250 300 350
WIDTHS
Overall I 93 93 93
ID Boiler J 78 78 78
Center to Entrance Box K 51 51 51
Center to Outside Hinge KK 51 51 51
Center to Lagging L 42 42 42
Base Outside M 64 64 64
Base Inside N 52 52 52
HEIGHTS
Overall OO 115 115 115
Base to Vent Outlet O 106 106 106
Base to Return and Outlet X 101-12 101-12 101-12
Height of Base Q 10 10 10
Base to Bottom of Boiler R 17 17 17
BOILER CONNECTION
Auxiliary Connection Z 1-14 1-14 1-14
Water Return Flange (2 Dip Tube included) T 8A 8A 8A
Water Outlet Flange (2 Dip Tube Included) U 8A 8A 8A
Air Vent Y 1-12 1-12 1-12
Drain Front and Rear W 2 2 2
VENT STACK
Diameter (flgd connection) BB 20 20 20
MINIMUM CLEARANCES
Rear Door Swing DD 43 43 43
Front Door Swing EE 89 89 89
Tube Removal Rear FF 131 157 187
Tube Removal Front GG 116 142 172
MINIMUM BOILER ROOM LENGTH ALLOWING FOR DOOR SWING AND TUBE REMOVAL FROM
Rear of Boiler RR 364 417 477
Front of Boiler RF 303 356 416
Thru Window or Doorway RD 275 302 332
WEIGHT IN LBS
Water Capacity Flooded 13880 16840 20090
Approx Ship Wgt ndash 30 psigApprox Ship Wgt ndash 125 psig
2140022200
2350024300
2670027500
NOTES All connections are threaded unless indictedA ANSI 150 psig flange
Table A1-7 Model CB-LE Hot Water Boiler Dimensions
78rdquo (30 and 125 psig Design Pressure) - Sheet 2 of 2
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 1643
Model CBLE 125-800 HP Boilers
16
BOILER HP DIM 400 500 600 700 800
LENGTHS
Overall (60 ppm System) A 206 228 262 299 300
Shell B 147 168 200 233 233
Base Frame C 134 155 187 220 220
Front Head Extension (60 ppm System) D 27 28 30 34 35
Rear Head Extension E 32 32 32 32 32
Shell Ring Flange to Base F 12 12 12 12 12
Rear Ring Flange to Base G 12-12 12-12 12-12 12-12 12-12
Shell Flange to Outlet HH 139-12 156-12 182-12 216-12 216-12
Shell Flange to Return H 107 125 151-12 185 185
Over Tubesheets V 130 151 183 216 216
Shell Extension P 17 17 17 17 17
Table A1-8 Model CB-LE Hot Water Boiler Dimensions96rdquo (30 and 125 psig Design Pressure) - Sheet 1 of 2
Figure A1-6 CB-LE Hot Water 400-800 HP
s k o o r B r e v a
e l C
R
F G
WW
P
BB
D E
GG
Q
Z
Y T U
RR - RF - RD
X
HH
A
B
HI
L K
OOO
KK
M
N
EE
FF
DD
V
J
C
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 1743
Model CBLE 125-800 HP Boilers
17
WIDTHS
Overall I 113 113 113 113 115
ID Boiler J 96 96 96 96 96
Center to Entrance Box K 62 62 62 62 64
Center to Outside Hinge KK 62 62 62 62 62
Center to Lagging L 51 51 51 51 51
Base Outside M 72 72 72 72 72
Base Inside N 56 56 56 56 56
HEIGHTS
Overall OO 134 134 134 134 134
Base to Vent Outlet O 126 126 126 126 126
Height of Base Q 12 12 12 12 12
Base to Bottom of Boiler R 19 19 19 19 19
Base to Return and Outlet X 121-916 121-916 121-916 121-916 121-916
BOILER CONNECTIONS
Auxiliary Connection Z 1-14 1-14 1-14 1-14 1-14
Drain Front and Rear W 2 2 2 2 2
Water Return T 10A 10A 12A 12A 12A
Water Outlet (2rdquo Dip Tube Included) U 10A 10A 12A 12A 12A
Air Vent Y 2 2 2 2 2
VENT STACK
Diameter (Flanged Connection) BB 24 24 24 24 24
MINIMUM CLEARANCES
Rear Door Swing DD 53 53 53 53 53
Front Door Swing EE 108 108 108 108 108
Tube Removal Rear FF 131 152 184 217 217
Tube Removal Front GG 114 135 167 200 200
MINIMUM BOILER ROOM LENGTH ALLOWING FOR DOOR SWING AND TUBE REMOVAL FROM
Rear of Boiler RR 386 428 492 558 558
Front of Boiler RF 314 356 420 486 486
Thru Window or Doorway RD 308 329 361 394 394
WEIGHT IN LBS
Normal Water Capacity 20015 23300 28260 33360 33360
Approx Ship Wgt ndash 30 psig
Approx Ship Wgt ndash 125 psig
33300
37270
36900
40780
42150
46005
49650
53300
49750
53400
NOTES All connections are threaded unless indicated
A ANSI 150 psig flange
BOILER HP DIM 400 500 600 700 800
Table A1-8 Model CB-LE Hot Water Boiler Dimensions
96rdquo (30 and 125 psig Design Pressure) - Sheet 2 of 2
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 1843
Model CBLE 125-800 HP Boilers
18
BOILER HP
MOTOR HP
60PPM
30PPM
25PPM
20PPM
125 5 10 5 10
150 75 10 10 10
200 15 15 20 NA
250 75 10 15 15
300 10 15 20 30
350 15 25 40 40
400 10 15 20 20
500 15 20 25 30
600 25 30 50 60
700 30 50 75 75
800 50 75 NA NA
NOTES For elevations above 700rsquo - contact your local
Cleaver-Brooks authorized representative
Table A1-9 Model CB-LE Blower Motor Selection -
Operating Pressures 150 psig and Less and All Hot
Water Boilers
BOILER HP
MOTOR HP
60
PPM
30
PPM
25
PPM
20
PPM
125 5 10 10 10
150 10 10 10 15
200 15 20 20 NA
250 75 10 15 20
300 10 20 30 40
350 20 30 40 50
400 10 15 20 25
500 20 25 30 40
600 25 40 60 60
700 40 60 75B 75C
800 60 75A NA NA
NOTES For elevation above 700rsquo - contact your local
Cleaver-Brooks authorized representative
A Downrate to 770 hp
B Downrate to 675 hp
C Downrate to 660 hp
Table A1-10 Model CB-LE Blower Motor Selection -
Operating Pressures Greater than 150 psig (Steam
Boilers)
09-09
Table A1-11 Blower Motor Selection CB-LE NTI BoilersTable A1-12 Turndown Guarantee for CB-LE NTI
Boilers - Natural Gas amp 2 Oil
Boiler SizeTurndown
9 ppm 15 ppm
125 41 41
150 41 51
200 41 51
250 51 51
300 51 51
350 51 51
400 51 61
500 51 61
600 61 61
700 71 71
800 71 71
800 HP to be derated to 720 HP for 9 ppm and 750 HP
for 15 ppm
Altitude 700 ft and less - Design Pressure 150 psi and less
800 HP - to be de-rated to 720 HP for 9 ppm and to 750 HP for 15 ppm
mpp9mpp51Nominal
Boiler Size Blower Motor HP Blower Motor HP
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 1943
Model CBLE 125-800 HP Boilers
19
BOILER HPFUEL
SERIES
HOT WATER STEAM
30 PSIG 125 PSIG 15 PSIG 150 PSIG 200 PSIG
125100 11200 11600 11300 12000 12600200 11400 11800 11500 12400 13000
700 11300 11700 11400 12300 12900
150
100 12300 12700 12400 13200 13900
200 12500 12900 12600 13500 14200
700 12300 12700 12400 13300 14000
200
100 14400 14800 14500 15500 16300
200 14500 14900 14600 15600 16400
700 14500 14900 14600 15600 16400
250
100 20700 21500 20800 22000 23800
200 21400 22200 21500 22800 24600
700 20900 21700 21000 22500 24300
300
100 23100 23900 23200 24800 26800
200 23500 24300 23600 25200 27200
700 23400 24200 23500 25000 27000
350
100 26200 27000 26300 27600 29100
200 26700 27500 26800 27800 29300
700 26400 27200 26500 27700 29200
400
100 33000 36970 33200 36270 39380
200 33300 37270 33500 36570 39680
700 33200 37170 33400 36470 39580
500
100 36600 40470 36810 39670 43480
200 36900 40780 37110 39970 43580
700 36800 40680 37010 39870 43280
600
100 41850 45905 42000 44725 49100
200 42150 46005 42300 45025 49400
700 42050 45915 42200 44925 49300
700800
100 49450 53000 49300 51850 57015
200 49750 53300 49600 52150 57315
700 49650 53200 49500 52050 57215
NOTES1 Weights shown are based on standard product offering for current listed boilers If units are of special design and construction actual weightwill be determined at time of shipment Shipment will then be made on shippers weight and count All weights are in US pounds
Table A1-13 Model CB-LE Boiler Weights
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 2043
Model CBLE 125-800 HP Boilers
20
VALVE
SETTING15 PSIG STEAM 100 PSIG STEAM 125 PSIG STEAM 150 PSIG STEAM 200 PSIG STEAM 250 PSIG STEAM 300 PSIG STEAM
BOILERHP
NO OF
VALVES-REQD
OUTLET
SIZE(IN)
NO OF
VALVES-REQD
OUTLET
SIZE(IN)
NO OF
VALVESREQD
OUTLET
SIZE(IN)
NO OF
VALVES-REQD
OUTLET
SIZE(IN)
NO OF
VALVES-REQD
OUTLET
SIZE(IN)
NO OF
VALVESREQD
OUTLET
SIZE(IN)
NO OF
VALVESREQD
OUTLET
SIZE(IN)
125 1 3 2 1-12 2(1) 1-12(1) 1-14
2(1) 1-12(1) 1-14
2(1) 1-14(1) 1
2 1 2 1
150 1 3 2(1) 2(1) 1-12
2 1-14 2(1) 1-12(1) 1-14
2(1) 1(1) 1-14
2 1 2 1
200 2 2-12 2 2 2 1-12 2 1-12 2(1) 1-12(1) 1-14
2 1-14 2(1) 1(1) 1-14
250 2(1) 2-12(1) 3
2(1) 2-12(1) 2
2(1)2(1)1-12
2(1) 2(1) 1-12
2(1)1-12(1)1-14
2(1) 1-12(1) 1-14
2 1-14
300 2 3 2(1) 2-12(1) 2
2 2 2(1) 2(1) 1-12
2 1-12 2(1)1-12(1)1-14
2(1) 1-12(1) 1-14
350 3(1) 2(2) 3
3(1) 2-12(2) 2
2(1)2(1)1-12
2 2 2(1) 1-12(1) 2
2 1-12 2(1) 1-12(1) 1-14
400 3(2) 3(1) 2-12
3(1) 2(2) 2-12
2(1)2(1)2-12
2(1) 2-12(1) 2
2(1) 1-12(1) 2
2(1) 2(1) 1-12
2 1-12
500 3 (3) 3 3 2-12 2 2-12 2(1) 2-12(1) 2
2(1) 2(1) 2-12
2(1) 2(1)1-12
2(1) 1-12(1) 2
600 4 3 4(3) 2-12(1) 2
3 2-12 2 2-12 2(1) 2(1) 2-12
2 2 2 2
700 5(3) 3(2) 2-12
5(3) 2-12(2) 2
3 2-12 3(2) 2-12(1) 2
2 2-12 2(1) 2(1) 2-12
2 2
800 5(3) 3(2) 2-12
5(3) 2-12(2) 2
4(3) 2-12(1) 2
3(2) 2-12(1) 2
2 2-12 2(1) 2(1) 2-12
2(1) 2(1) 2-12
NOTES Valve manufacturers are Kunkle Consolidated or Conbraco depending on availability This table revised 042012
Table A1-14 Steam Boiler Safety Valve Openings
VALVE
SETTING 30 PSIG HW 60 PSIG HW 100 PSIG HW 125 PSIG HW
BOILER HPNO OF
VALVESREQD
OUTLETSIZE(IN)
NO OFVALVESREQD
OUTLETSIZE(IN)
NO OFVALVESREQD
OUTLETSIZE(IN)
NO OFVALVESREQD
OUTLETSIZE(IN)
125 1 2-12 1 2 1 2 1 1-14
150 1 2-12 1 2-12 1 2 1 2
200 2(1) 2-12(1) 1-14
1 2-12 1 2 1 2
250 2 (1) 2(1) 2-12
1 2-12 1 2-12 1 2
300 2 2-12 2(1) 1(1) 2-12
1 2-12 1 2-12
350 3(2) 2-12(1) 1
2(1) 2-12(1) 2
1 2-12 1 2-12
400 3 (1) 2(2) 2-12 2 (1) 2(2) 2-12 2 (1) 1(1) 2-12 1 2-12
500 4 (1) 1(3) 2-12
2 2-12 2(1) 2-12(1) 1-14
2(1) 1(1) 2-12
600 4(3) 2-12(1) 2
3(1) 1-1(2) 2-12
2(1) 2(1) 2-12
2(1) 2-12(1) 1-14
700 amp 800 5 (1) 1(4) 2-12
3(1) 2(2) 2-12
2 2-12 2(1) 2-12(1) 2
NOTES Hot water relief valves are Kunkle 537
Table A1-15 Hot Water Boiler Relief Valve Openings
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Model CBLE 125-800 HP Boilers
21
BOILER HP A B C D E F G X1 X2 X3
125 6 9 112 39-12 57-12 4 44-12 10 9-34 22-12
150 6 9 136 39-12 57-12 4 44-12 10 9-34 22-12
200 6 9 167 39-12 57-12 4 44-12 10 9-34 22-12
250 6 12 131 46 70 4 56 10 22 22-12
300 6 12 158 46 70 4 56 10 22 22-12
350 6 12 188 46 70 4 56 10 22 22-12
NOTE
All numbers in table are in inches
6-inch high mounting piers recommended for use beneath the boiler base frame The use of these piers provides increased inspection
accessibility to the piping beneath the boiler and added height for washing down the area beneath the boiler
Figure A1-7 Space Required to Open Rear Head on Model CB-LE Boilers Equipped with Davits
BOILER HPDIMENSIONS (INCHES)
A B C D E
CB-125 THRU CB-200 33 55 45 68 32
CB-250 THRU CB-350 42 69 58 86 43
CB-400 THRU CB-800 51 88 71 109 53
Figure A1-8 Model CB-LE Boiler Mounting Piers (60rdquo and 78rdquo)
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Model CBLE 125-800 HP Boilers
22
BOILER HP A B C D E F G
400 6 14 134 50 78 6-12 58-78
500 6 14 155 50 78 6-12 58-78
600 6 14 187 50 78 6-12 58-78
700-800 6 14 220 50 78 6-12 58-78
NOTE1 All numbers in table are in inches2 6-inch high mounting piers recommended for use beneath the boiler base frame The use of these piers provides in-
creased inspection accessibility to the piping beneath the boiler and added height for washing down the area beneaththe boiler
Figure A1-9 Model CB-LE Boiler Mounting Piers (96rdquo)
CBLE 250-350HP
CBLE 400-800HP
Motor HP Hole Number
75 1
15 1
25 2
40 3
Motor HP Hole Number
10 1
20 1
30 250 2
75 3
Figure A1-10 Front Davit Support
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Model CBLE 125-800 HP Boilers
23
BOILERHP
VIEW
ALL DIMENSIONS IN INCHES
A B C D E
125 All B 80-14 29-34 70-12 10 3
150 All B 80-14 29-34 83-12 10 3
200 All B 80-14 29-34 114-12 10 3
250Steam B 99 36 72 10 3
Hot Water B 99 36 81 10 3
300
Steam B 99 36 99 10 3
Hot Water B 99 36 108 10 3
350Steam B 99 36 129 10 3
Hot Water B 99 36 138 10 3
400Steam B 119 35-34 78 11 3
Hot Water B 119 35-34 78 11 3
500Steam B 119 35-34 99 11 3
Hot Water B 119 35-34 99 11 3
600Steam B 119 35-34 131 11 3
Hot Water B 119 35-34 131 11 3
700 amp 800Steam B 119 35-34 164 11 3
Hot Water B 119 35-34 164 11 3
NOTE A B and C dimensions may vary by 12 inch
Figure A1-11 Lifting Lug Location Model CB-LE Boilers
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Model CBLE 125-800 HP Boilers
24
PERFORMANCE DATA
The Low Emission Option provides NOx reduction at current published andpredicted fuel-to-steam efficiencies
Specifying BoilerEfficiency
Cleaver-Brooks offers an industry leading fuel-to-steam boiler efficiency guaranteefor Model CB-LE Firetube Boilers The guarantee is based on the fuel-to-steam
efficiencies shown in the efficiency tables and the following conditions Theefficiency percent number is only meaningful if the specific conditions of theefficiency calculations are clearly stated in the specification (see Cleaver-Brookspublication CB-7768 for a detailed description of efficiency calculations)
When specifying the efficiencies in the tables be sure to include the specificguarantee conditions to maximize the effectiveness of your efficiency specification Ifyou have any questions regarding the efficiency specifications please contact yourlocal Cleaver-Brooks authorized representative
EfficiencySpecification
The boiler manufacturer shall guarantee that at the time of startup the boiler willachieve fuel-to-steam efficiency (as shown in Table A1-16 and Table A1-17) at100 firing rate (add efficiency guarantees at 25 50 and 75 of rating if
required) If the boiler(s) fail to achieve the corresponding guaranteed efficiency aspublished the boiler manufacturer will rebate to the ultimate boiler owner tenthousand dollars ($10000) for every full efficiency point (10) that the actualefficiency is below the guaranteed level
The specified boiler efficiency is based on the following conditions
1 Fuel specification used to determine boiler efficiency
bull Natural Gas
Carbon (wt) = 6998Hydrogen (wt) = 2231Sulfur (wt) = 00
Heating value Btulb = 21830bull No 2 Oil
Carbon (wt) = 858Hydrogen (wt) = 127Sulfur (wt) = 02Heating value Btulb = 19420
No 6 Oil
Carbon (wt) = 866Hydrogen (wt) = 109Sulfur (wt) = 209Heating value Btulb = 18830
2 Efficiencies are based on ambient air temperature of 80 degF relative humidity of30 and 15 excess air in the exhaust flue gas
3 Efficiencies are based on manufacturerrsquos published radiation and convectionlosses (For Cleaver-Brooks radiation and convection losses see BoilerEfficiency Facts Guide publication number CB-7767)
4 Any efficiency verification testing will be based on the stack loss method
For efficiencies and stack temperatures at operating pressures not listed followthese procedures
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Model CBLE 125-800 HP Boilers
25
When the operating steam pressure is between 10 psig and 125 psig interpolatethe values from the efficiency tables
When the operating steam pressure is above 125 psig estimated efficiency can becalculated as follows
Example
Boiler 350 hpFuel natural gas
Operating steam pressure 200 psig
Find the fuel-to-steam efficiency at 100 firing rate From Table A1-16 for a 350hp boiler operating at 100 firing rate and an operating steam pressure of 125psig the efficiency is 825
Using Figure A1-12 note that the stack temperature increases 36 degF at the higheroperating pressure To estimate boiler efficiency use this rule of thumb For every40 degF increase in stack temperature efficiency decreases by 1 Since the stacktemperature rise is 36 degF the decrease in the boiler efficiency at 200 psig operatingpressure is calculated as follows 3640 =9 Therefore the boiler efficiency at200 psig operating pressure is 825 -9 = 816
Emissions The emission data included in this section consists of typical emission levels forModel CB boilers equipped with 60 30 25 and 20 ppm LE Options when firingnatural gas and No 2 oil
Notice
The data in Table A1-18 and Table A1-19 represent typical emission levels only
Guaranteed emission levels are available from your local Cleaver-Brooks authorized
representative
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Model CBLE 125-800 HP Boilers
26
BOILER
HP
OPERATING PRESSURE = 10 psig OPERATING PRESSURE = 125 psig
OF LOAD OF LOAD
25 50 75 100 25 50 75 100
125 833 836 834 832 804 809 810 810
150 844 846 845 843 815 820 820 821
200 850 853 851 849 822 827 827 827
250 850 847 840 833 820 820 816 813
300 853 853 846 839 826 827 822 819
350 853 857 852 845 826 832 828 825
400 845 847 846 844 818 822 824 822
500 855 857 855 852 828 832 833 831
600 857 860 858 856 829 835 836 835
700 857 862 860 857 830 836 836 836
800 858 861 859 856 831 836 837 835
Table A1-16 Predicted Fuel-to-Steam Efficiencies - Natural Gas
Figure A1-12 Predicted Stack Temperature Increase for Pressure Greater Than 125 psig
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Model CBLE 125-800 HP Boilers
27
Table A1-18 CB-LE Boilers - Natural Gas Emission Levels
POLLUTANT
ESTIMATED LEVEL
60 ppm 30 ppm 25 ppm 20 ppm 15 ppm 9 ppm
CO ppmA
lbMMBtu
50150B
004011
50150B
004011
50150B
004011
50150B
004011
50
004
50
004
NOx ppmA
lbMMBtu
60
007
30
0035
25
003
20
0024
15
0018
9
0011
SOx ppmA
lbMMBtu
1
0001
1
0001
1
0001
1
0001
1
0001
1
0001
HCVOC5 ppmA
lbMMBtu
10
0004
10
0004
10
0004
10
0004
10
0004
10
0004
PM ppmA
lbMMBtu
-
001
-
001
-
001
-
001
-
001
-
001
A ppm levels are given on a dry volume basis and corrected to 3 oxygen (15 excess air)
B CO emission for 60 30 25 amp 20 ppm system is 50 ppm (004 lbMMBtu) when boiler is operating above 50 of rated capacity
CO emission is 150 ppm (011 lbMMBtu) when boiler is operating below 50 of rated capacity
Table A1-17 Predicted Fuel-to-Steam Efficiencies - No 2 Oil
BOILER
HP
OPERATING PRESSURE = 10 psig OPERATING PRESSURE = 125 psig
OF LOAD OF LOAD
25 50 75 100 25 50 75 100
125 867 869 867 866 837 842 843 843
150 878 880 878 876 848 853 853 854
200 884 887 884 882 856 860 860 860
250 883 881 874 867 853 853 849 847
300 886 887 880 873 859 860 855 852
350 886 890 885 878 859 866 861 858
400 879 881 879 876 851 855 856 855
500 889 890 889 886 861 865 866 864
600 890 894 892 890 862 868 869 868
700 891 895 893 891 863 869 870 869
800 892 895 893 890 864 869 870 868
Table A1-19 CB-LE Boilers - No 2 Oil Emission Levels
POLLUTANTESTIMATED LEVEL
60 ppm LE Option 30 25 20 ppm LE Option 15 ppm 9 ppm
CO ppmA
lbMMBtu
50
0039
50
0039
50
0039
50
0039
NOx ppmA
lbMMBtu140
018690
012085
011370
0093
SOx ppmA
lbMMBtu
278
052
278
052
278
052
278
052
HCVOCs ppmA
lbMMBtu
4
0002
4
0002
4
0002
4
0002
PM ppmA
lbMMBtu
-
0025
-
0025
-
0025
-
0025
A ppm levels are given on a dry volume basis and corrected to 3 oxygen (15 excess air)
BASED ON THE FOLLOWING CONSTITUENT LEVELS
Fuel-bound Nitrogen content = 0015 by weight
Sulfur content = 05 by weight
Ash content = 001 by weight
09-09
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Model CBLE 125-800 HP Boilers
28
ENGINEERING DATA
Sound Level Table A1-20 gives a summary of predicted sound pressure levels for Model CBboilers with 30 ppm LE Options Contact your local Cleaver-Brooks authorizedrepresentative for sound levels or other LE Options
Units - The units for the sound level tables are dbA (decibels measured on the A-weighted scale) in reference to 00002 microbars (20 micro-Newtons per square
meter) Their reference are standardly used in specifying and reporting soundpressure levels on industrial equipment
Test Method - The sound pressure levels in the above tables were obtained fromtests in accordance with the ldquoABMA Test Code for the Measurement of Sound fromPackaged Boilersrdquo In accordance with this code the sound pressure levels reportedwere measured on the boiler centerline 4-12 feet vertically above the bottom of thebase rails and 3 feet horizontally in front of the end of the blower motor or frontsurface of the electrical cabinet
Sound Level Meter - The sound level meter used complies with ANSI S14 Type 1(Precision) The readings are taken with the meter set for slow response andcorrected for background levels
Sound Pressure - The large size boilers the need for auxiliary equipment and thenecessary interconnecting piping make it impractical (and sometimes impossible) toprovide a boiler testing environment which is suitable for taking the data needed todevelop Sound Pressure Power levels
Typical Values - Sound pressure levels (dbA) for the same boiler will vary betweenboiler rooms Sound levels will vary with motor type NOx levels and altitudes Inaddition variations will occur between different people using different sound meterson the same boiler And finally no two boilers can be expected to give precisely thesame sound levels For these reasons we can only predict but not guarantee soundlevels (dbA)
BOILER HP 125 150 200 250 300 350 400 500 600 700 800
HFO dbA 84 84 84 83 84 85 84 85 85 88 90
LFO dbA 82 82 83 81 82 83 82 83 83 84 89
HFG dbA 82 82 83 82 83 84 83 83 85 87 90
LFG dbA 81 81 82 81 82 83 81 81 82 84 88
NOTES1 Sound pressure levels measured on boilers operating in various locations and ex-
pressed in dbA are as shown2 Based on standard altitude fans and fan motors 60 Hz3 Contact your local Cleaver-Brooks authorized representative for sound levels of 60 25or 20 ppm LE Options
ABBREVIATIONS
HF = High Fire LF = Low Fire O = Oil G = Gas
Table A1-20 Model CBLE Predicted Sound Levels 30 ppm NOx Systemss
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Model CBLE 125-800 HP Boilers
29
Gas-Fired Burners Table A1-21 shows gas pressure with standard over- and undersized gas trains
Table A1-22 shows minimum required gas pressure altitude conversion
Figure A1-13 shows standard gas train sizes and locations for Model CB FiretubeBoilers
Figure A1-14 shows typical gas train piping layouts for multiple boiler applications
Figure A1-15 shows standard gas train components
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Model CBLE 125-800 HP Boilers
30
Table A1-21 Standard Undersize and Oversize Gas Trains
CBLE
BOILER HP GAS TRAINSIZE
UPSTREAMVALVE
DOWNSTREAMVALVE
EMISSIONS LEVEL 09 ppm 15 ppm 20 ppm 30 ppm 60 ppm UC
125 HP 15 in BB BB 33 - 49 psi 33 - 49 psi 08 - 50 psi 07 - 50 psi 07 - 50 psi 07 - 50 ps
125 HP 15 in PC PC 34 - 50 psi 34 - 50 psi 09 - 50 psi 08 - 50 psi 08 - 50 psi 08 - 50 ps
125 HP 20 in BB BB 31 - 33 psi 31 - 33 psi 06 - 08 psi 06 - 07 psi 05 - 07 psi 05 - 07 ps
125 HP 20 in PC PC 31 - 34 psi 31 - 34 psi 06 - 09 psi 06 - 08 psi 06 - 08 psi 05 - 08 ps
125 HP 25 in PC PC 30 - 31 psi 30 - 31 psi 04 - 06 psi 04 - 06 psi 04 - 05 psi 04 - 05 ps
125 HP 30 in PC PC 29 - 30 psi 29 - 30 psi 04 - 04 psi 04 - 04 psi 04 - 04 psi 03 - 04 ps
125 HP 40 in PC PC 29 - 29 psi 29 - 29 psi 04 - 04 psi 03 - 04 psi 03 - 04 psi 03 - 03 ps
150 HP 15 in BB BB 37 - 55 psi 39 - 58 psi 10 - 47 psi 09 - 50 psi 09 - 50 psi 09 - 50 ps
150 HP 15 in PC PC 38 - 57 psi 40 - 60 psi 11 - 42 psi 11 - 50 psi 10 - 50 psi 10 - 50 ps
150 HP 20 in BB BB 34 - 37 psi 36 - 39 psi 07 - 10 psi 06 - 09 psi 06 - 09 psi 06 - 09 ps
150 HP 20 in PC PC 34 - 38 psi 36 - 40 psi 07 - 11 psi 07 - 11 psi 07 - 10 psi 06 - 10 ps
150 HP 25 in PC PC 32 - 34 psi 34 - 36 psi 05 - 07 psi 04 - 06 psi 04 - 06 psi 04 - 06 ps
150 HP 30 in PC PC 32 - 32 psi 34 - 34 psi 04 - 05 psi 04 - 04 psi 04 - 04 psi 03 - 04 ps
150 HP 40 in PC PC 31 - 32 psi 33 - 34 psi 04 - 04 psi 03 - 04 psi 03 - 04 psi 03 - 03 ps
200 HP 15 in BB BB 46 - 69 psi 50 - 75 psi 16 - 50 psi 15 - 50 psi 15 - 50 ps
200 HP 15 in PC PC 48 - 72 psi 52 - 78 psi 18 - 50 psi 17 - 50 psi 17 - 50 ps
200 HP 20 in BB BB 41 - 46 psi 45 - 50 psi 10 - 16 psi 10 - 15 psi 10 - 15 ps
200 HP 20 in PC PC 41 - 48 psi 45 - 52 psi 11 - 18 psi 11 - 17 psi 10 - 17 ps
200 HP 25 in PC PC 38 - 41 psi 42 - 45 psi 07 - 10 psi 07 - 10 psi 06 - 10 ps
200 HP 30 in PC PC 36 - 38 psi 40 - 42 psi 06 - 07 psi 05 - 07 psi 05 - 06 ps
200 HP 40 in PC PC 36 - 36 psi 40 - 40 psi 05 - 06 psi 05 - 05 psi 04 - 05 ps
250 HP 15 in BB BB 41 - 62 psi 44 - 67 psi 24 - 50 psi 24 - 27 psi 24 - 26 psi 23 - 26 ps
250 HP 15 in PC PC 45 - 67 psi 48 - 72 psi 28 - 50 psi 27 - 28 psi 27 - 27 psi 27 - 27 ps
250 HP 20 in BB BB 33 - 38 psi 37 - 41 psi 16 - 24 psi 16 - 24 psi 16 - 24 psi 15 - 23 ps
250 HP 20 in PC PC 34 - 40 psi 37 - 43 psi 17 - 28 psi 17 - 27 psi 16 - 27 psi 16 - 27 ps
250 HP 25 in PC PC 29 - 33 psi 32 - 37 psi 11 - 16 psi 11 - 16 psi 11 - 16 psi 10 - 15 ps
250 HP 30 in PC PC 27 - 29 psi 31 - 32 psi 09 - 11 psi 09 - 11 psi 09 - 11 psi 09 - 10 ps
250 HP 40 in PC PC 26 - 27 psi 29 - 31 psi 08 - 09 psi 08 - 09 psi 08 - 09 psi 08 - 09 ps
300 HP 15 in - 20 in BB BB 55 - 83 psi 57 - 85 psi 30 - 50 psi 30 - 36 psi 30 - 35 psi 30 - 35 ps
300 HP 15 in - 20 in PC PC 58 - 87 psi 60 - 90 psi 33 - 50 psi 33 - 37 psi 33 - 36 psi 33 - 36 ps
300 HP 20 in BB BB 46 - 55 psi 47 - 57 psi 21 - 30 psi 21 - 30 psi 20 - 30 psi 20 - 30 ps
300 HP 20 in PC PC 47 - 58 psi 48 - 60 psi 22 - 33 psi 22 - 33 psi 21 - 33 psi 21 - 33 ps
300 HP 30 in PC PC 39 - 46 psi 40 - 47 psi 13 - 21 psi 13 - 21 psi 12 - 20 psi 12 - 20 ps
300 HP 40 in PC PC 37 - 39 psi 39 - 40 psi 11 - 13 psi 11 - 13 psi 10 - 12 psi 10 - 12 ps
350 HP 15 in - 20 in BB BB 64 - 90 psi 62 - 90 psi 42 - 50 psi 42 - 50 psi 41 - 50 psi 41 - 50 ps
350 HP 15 in - 20 in PC PC 68 - 90 psi 66 - 90 psi 46 - 50 psi 46 - 50 psi 45 - 50 psi 45 - 50 ps
350 HP 20 in BB BB 54 - 64 psi 53 - 62 psi 32 - 42 psi 32 - 42 psi 32 - 41 psi 31 - 41 ps
350 HP 20 in PC PC 56 - 68 psi 54 - 66 psi 34 - 46 psi 34 - 46 psi 33 - 45 psi 33 - 45 ps
350 HP 25 in PC PC 43 - 54 psi 42 - 53 psi 21 - 32 psi 21 - 32 psi 20 - 32 psi 20 - 31 ps
350 HP 30 in PC PC 40 - 43 psi 38 - 42 psi 17 - 21 psi 17 - 21 psi 17 - 20 psi 16 - 20 ps
350 HP 40 in PC PC 37 - 40 psi 36 - 38 psi 15 - 17 psi 15 - 17 psi 14 - 17 psi 14 - 16 ps
400 HP 15 in - 20 in BB BB 69 - 90 psi 69 - 90 psi 46 - 50 psi 46 - 50 psi 45 - 50 psi 45 - 50 ps
400 HP 15 in - 20 in PC PC 74 - 90 psi 75 - 90 psi 51 - 87 psi 51 - 77 psi 51 - 77 psi 51 - 77 ps
400 HP 20 in BB BB 55 - 69 psi 56 - 69 psi 32 - 46 psi 32 - 46 psi 32 - 45 psi 32 - 45 ps
400 HP 20 in PC PC 57 - 74 psi 58 - 75 psi 34 - 50 psi 34 - 50 psi 34 - 50 psi 34 - 50 ps
400 HP 25 in PC PC 41 - 55 psi 42 - 56 psi 18 - 32 psi 18 - 32 psi 18 - 32 psi 18 - 32 ps
400 HP 30 in PC PC 37 - 41 psi 38 - 42 psi 13 - 18 psi 13 - 18 psi 13 - 18 psi 13 - 18 ps
400 HP 40 in PC PC 34 - 37 psi 35 - 38 psi 11 - 13 psi 10 - 13 psi 10 - 13 psi 10 - 13 ps
500 HP 20 in - 25 in BB PC 58 - 76 psi 58 - 76 psi 46 - 50 psi 46 - 50 psi 45 - 50 psi 45 - 50 ps
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Model CBLE 125-800 HP Boilers
31
BB = Butter Ball PC = Plug Cock
NOTE In cases where the gas train increases in size after the regulating valve two diameters are listed The first number is the customer connection size
500 HP 20 in - 25 in PC PC 60 - 83 psi 60 - 83 psi 48 - 50 psi 47 - 50 psi 47 - 50 psi 47 - 50 psi
500 HP 25 in PC PC 39 - 58 psi 39 - 58 psi 27 - 46 psi 27 - 46 psi 27 - 45 psi 26 - 45 psi
500 HP 30 in PC PC 33 - 39 psi 33 - 39 psi 20 - 27 psi 20 - 27 psi 20 - 27 psi 20 - 26 psi
500 HP 40 in PC PC 28 - 33 psi 28 - 33 psi 16 - 20 psi 16 - 20 psi 15 - 20 psi 15 - 20 psi
600 HP 20 in - 25 in BB PC 80 - 90 psi 80 - 90 psi 65 - 90 psi 65 - 90 psi 64 - 89 psi 63 - 88 psi
600 HP 20 in - 25 in PC PC 82 - 90 psi 82 - 90 psi 67 - 100 psi 67 - 100 psi 66 - 99 psi 66 - 99 psi
600 HP 25 in PC PC 54 - 80 psi 54 - 80 psi 39 - 50 psi 38 - 50 psi 38 - 50 psi 37 - 50 psi
600 HP 25 in - 30 in PC PC 52 - 54 psi 52 - 54 psi 37 - 39 psi 36 - 38 psi 35 - 38 psi 35 - 37 psi
600 HP 30 in PC PC 43 - 52 psi 43 - 52 psi 28 - 37 psi 27 - 36 psi 27 - 35 psi 26 - 35 psi
600 HP 40 in PC PC 37 - 43 psi 37 - 43 psi 22 - 28 psi 21 - 27 psi 20 - 27 psi 20 - 26 psi
700 HP 20 in - 30 in BB PC 110 - 150 psi 107 - 150 psi 87 - 131 psi 86 - 130 psi 86 - 129 psi 86 - 128 psi
700 HP 20 in - 30 in PC PC 113 - 150 psi 110 - 150 psi 90 - 135 psi 89 - 134 psi 89 - 134 psi 89 - 133 psi
700 HP 25 in - 30 in PC PC 71 - 90 psi 68 - 90 psi 48 - 50 psi 47 - 50 psi 47 - 50 psi 46 - 50 psi
700 HP 30 in PC PC 60 - 71 psi 57 - 68 psi 36 - 48 psi 36 - 47 psi 35 - 47 psi 35 - 46 psi
700 HP 40 in PC PC 51 - 60 psi 48 - 57 psi 28 - 36 psi 27 - 36 psi 27 - 35 psi 26 - 35 psi
800 HP 20 in - 30 in BB PC 108 - 150 psi 107 - 150 psi 106 - 150 psi
800 HP 20 in - 30 in PC PC 112 - 150 psi 111 - 150 psi 110 - 150 psi800 HP 25 in - 30 in PC PC 61 - 90 psi 60 - 100 psi 59 - 100 psi
800 HP 30 in PC PC 48 - 61 psi 47 - 50 psi 46 - 50 psi
800 HP 40 in PC PC 35 - 48 psi 34 - 47 psi 34 - 46 psi
Standard Gas Train size is highlighted
Table A1-21 Standard Undersize and Oversize Gas Trains (Continued)
CBLE
BOILER HP GAS TRAINSIZE
UPSTREAMVALVE
DOWNSTREAMVALVE
EMISSIONS LEVEL 09 ppm 15 ppm 20 ppm 30 ppm 60 ppm UC
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Model CBLE 125-800 HP Boilers
32
ALTITUDE(FT)
CORRECTIONFACTOR
ALTITUDE(FT)
CORRECTIONFACTOR
1000 104 6000 1252000 107 7000 130
3000 111 8000 135
4000 116 9000 140
5000 121 - -
To obtain minimum required gas pressure at altitudesabove 700 feet multiply the pressure by the listed factorsInches WC x 0577 = ozsq-inOzsq-in x 1732 = Inches WCInches WC x 00361= psigOzsq-in x 00625 = psigPsig x 2771 = Inches WCPsig x 160 = Ozsq-in
Table A1-22 Minimum Required Regulated Gas Pressure
Altitude Conversion
BOILERHP
TYPE OF GAS AND HEAT CONTENT
NATURAL GAS1000 (Btucu-ft)
PROPANE GAS2550 (Btucu-ft)
125 5103 2000
150 6124 2402
200 8165 3202
250 10206 4002
300 12247 4802
350 14280 5600
400 16329 6404
500 20415 8006
600 24494 9605
700 28576 11206
800 32659 12807
Table A1-23 Maximum Gas Consumption (CFH)
for Natural Gas and Propane Vapor
BOILER
HP
MODEL CB
CONNECTION SIZE
(IN NPT)
LOCATIONDIMENSION
ldquoArdquo (IN)
125-200 1-12 52
250-350 2 56
400 2 58
500 2-12 60
600 2-12 - 3 71
700-800 3 65
Figure A1-13 Standard Gas Train Connection Size and Location
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Model CBLE 125-800 HP Boilers
33
Oil-Fired Burners Fuel oil consumption information is shown on the boiler rating sheets in theDimensions and Rating Section
Figure A1-16 shows the oil connection sizes and locations for Model CB Boilersfiring No 2 oil
Figure A1-17 through Figure A1-18 show typical oil systems and layouts
Figure A1-19 and Figure A1-20 show the detail of an oil transfer tank (day tank)typically utilized to provide a storage reservoir between the oil system supply pumpand the boiler oil pump
General BoilerInformation
Table A1-24 shows blowdown tank sizing information
Table A1-25 provides heating surface information
Table A1-26 provides steam volume and disengaging area information
Table A1-27 provides recommended steam nozzle sizes
Table A1-28 provides recommended non-return valve sizes
Boiler RoomInformation
Figure A1-21 shows typical boiler room length requirements
Figure A1-22 shows typical boiler room width requirements
Figure A1-23 shows typical breeching arrangements
Stack SupportCapabilities
All standard Cleaver-Brooks Firetube Boilers with an LE option can support up to2000 lbs without additional support
LE Boilers 250 hp through 800 hp can be reinforced to support 3000 lbs
StackBreechingSize Criteria
The design of the stack and breeching must provide the required draft at each boilerflue gas outlet Proper draft is critical to burner performance
Although constant pressure at the flue gas outlet of the Model CB-LE is not requiredit is necessary to size the stackbreeching to limit flue gas pressure variation Theallowable pressure range is ndash025 WC to +025 WC
For additional information please review Section I4 General Engineering Data(Stacks) and Section F Stacks Stack and breeching sizes should always be providedby a reputable stack supplier who will design the stack and breeching system basedon the above criteria Your local Cleaver-Brooks authorized representative is capableof assisting in your evaluation of the stackbreeching design
Boiler RoomCombustion Air
When determining boiler room air requirements the size of the room air flow andvelocity of air must be reviewed as follows
1 Size (area) and location of air supply openings in boiler room
A Two (2) permanent air supply openings in the outer walls of the boiler room
are recommended Locate (1) at each end of the boiler room preferablybelow a height of 7 feet This allows air to sweep the length of the boiler
B Air supply openings can be louvered for weather protection but they shouldnot be covered with fine mesh wire as this type of covering has poor air flowqualities and is subject to clogging by dust or dirt
C A vent fan in the boiler room is not recommended as it could create a slightvacuum under certain conditions and cause variations in the quantity ofcombustion air This can result in unsatisfactory burner performance
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 3443
Model CBLE 125-800 HP Boilers
34
D Under no condition should the total area of the air supply openings be lessthan (1) square foot
E Size the openings by using the formulaArea (sq-ft) = CFMFPM
2 Amount of air required (cfm)
A Combustion Air = Rated bhp x 8 cfmbhp
B Ventilation Air = Maximum bhp x 2 cfmbhp
C Total recommended air = 10 cfmbhp - up to 1000 feet elevation Add 3percent more per 1000 feet of added elevation
3 Acceptable air velocity in Boiler Room (fpm)
A From floor to (7) foot height - 250 fpm
B Above (7) foot height - 500 fpm
Example Determine the area of the boiler room air supply openings for (1) 300 hpboiler at 800 feet altitude The air openings are to be 5 feet above floor level
bull Air required 300 x 10 = 3000 cfm (from 2B above)
bull Air velocity Up to 7 feet = 250 fpm (from 3 above)
bull Area Required Area = cfm = 3000250 = 12 sq-ft total
bull AreaOpening 122 = 6 sq-ftopening (2 required)
Notice
Consult local codes which may supersede these requirements
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 3543
Model CBLE 125-800 HP Boilers
35
This figure illustrates the basic gas valve arrangement on Cleaver-BrooksModel CB boiler and shows the contractors connection point The valves andcontrols between the contractor connection point and the gas main in thestreet are representative of a typical installation Actual requirements mayvary depending on local codes or local gas company requirements which
should be investigated prior to preparation of specifications and prior to con-struction
A Utilities service valveB Utilities service regulatorC Gas meterD Piping from meter to boiler
The size of the gas line from the meter to the gas pressure regulator at theboiler can be very important if gas pressures are marginal The gas line sizingis dependent on
1 Gas pressure at outlet of gas meter (C)2 Rate of gas flow required CFH3 Length of pipe run (D)4 Pressure required at contractor connection point
The local gas utility will advise the pressure that is available at the outlet oftheir meter
Figure A1-14 Typical Gas Piping Layout
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 3643
Model CBLE 125-800 HP Boilers
36
5
6
S
1
3
42
PILOT GAS LINE
S
S
MAIN GAS LINE
M M
ToBurner
GasSupply
11
10
97
12138
14 15
FLOW
FLOW
Figure A1-15 Model CB-LE Gas Train Components
BOILER
HP
MODEL CB
SUPPLYANDRE-
TURNCONN SIZES
(IN)(NPT)
A(IN)
RECOMMENDED OIL LINEA
SIZES(STANDARD PIPE)
(IN - IPS)
STOR-AGE
TANK TOBOILER
OR PUMPCONNECT
PUMPTO
BOILER
RE-TURN
LINE TOTANK
125150 200
34 12-12 1 1 1
250300350
34 34 1 1 1
400500600
34 11-34 1 1 1
700800
1 11-34 1 1 1
NOTE See No 2 Oil Line Sizing Instruction for systems with other conditions A For suction line condition with a maximum of 10 Feet of lift and a
total of 100 feet of suction line
Figure A1-16 No2 Oil Connection Size Location and Recommended Line Sizes
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 3743
Model CBLE 125-800 HP Boilers
37
Figure A1-17 No 2 Oil Piping Single Boiler
Installation Remote Oil Pump
Figure A1-18 No 2 Oil Piping Multiple Boiler
Installation Remote Oil Pumps
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 3843
Model CBLE 125-800 HP Boilers
38
Figure A1-19 No 2 Oil Piping Multiple Boiler
Installation
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 3943
Model CBLE 125-800 HP Boilers
39
Figure A1-20 No 2 Oil Piping Typical Arrangement
Table A1-24 Model CB-LE Blowdown
Tank Sizing
BOILER HP WATER (GAL)
125 97
150 118
200 145
250 146
300 176
350 210
400 177
500 209
600 250
700 800 296
NOTE Quantity of water removed from boiler by lowering normal water line 4
BOILER
HP
HEATING SURFACE (SQ-FT)
FIRESIDE WATERSIDE
125 625 679
150 750 820
200 1000 1092
250 1250 1346
300 1500 1623
350 1750 1932
400 2000 2151
500 2500 2691
600 3000 3262
700 800 3500 3810
Table A1-25 Heating Surface Model CB-LE
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 4043
Model CBLE 125-800 HP Boilers
40
BOILER HPSTEAM VOLUME CU-FT
STEAM DISENGAGING AREASQ-IN
HIGH PRESSUREA LOW PRESSUREB HIGH PRESSUREA LOW PRESSUREB
125 254 366 5371 5887
150 307 443 6511 7138
200 377 544 7985 8752
250 492 706 7980 8695
300 595 853 9651 10516
350 709 1017 11507 12538
400 721 979 9793 10593
500 837 1137 11376 12303
600 1015 1378 13787 14911
700-800 1198 1627 16273 17600
NOTE Based on normal water levelA Based on 150 psig design pressureB Based on 15 psig design pressure
Table A1-26 Steam Volume and Disengaging Area
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 4143
Model CBLE 125-800 HP Boilers
41
BOILERHP
BOILERCAPACITY(LBSHR)
OPERATING PRESSURES (PSIG)
50 75 100 125 150 175 200 250
100 3450
2-12 2-12 NA NA NA NA NA NA
125 4313 3 2-12 2-12 2-12 NA NA NA NA
150 5175 3 3 2-12 2-12 2-12 2-12 NA NA
200 6900 3 3 3 3 3 2-12 2-12 2-12
250 8625 4 3 3 3 3 3 3 3
300 10350 4 4 4 3 3 3 3 3
350 12025 4 4 4 4 4 3 3 3
400 13800 5 4 4 4 4 4 4 3
500 17210 6 5 5 4 4 4 4 4
600 20700 6 6 5 5 5 4 4 4
700 24150 6 6 6 5 5 5 5 4
800 27600 6 6 6 6 6 5 5 5
NOTE Valve sizes (300 Flanges) given in inchesStandard Non-Return valve selections limited to a maximum 2 to 1 turndown(50 of full load) selections based on typical non-return valve sizing recommen-dations For final valve selection contact your C-B authorized representative Forhigh turndown applications see Boiler Book Section I3 Table I3-3 Indicates pressure drop of less than 75 psig All other selections are less than6 psig pressure drop
Boiler HP
OPERATINGPRESSURE
PSIG125 150 200 250 300 350 400 500 600 700 800
15 8 8 10 10 12 12 12 12 12 12 12
30 6 6 8 8 8 10 10 10 12 12 12
40 6 6 6 8 8 8 10 10 10 12 12
50 6 6 6 6 8 8 8 10 10 10 12
75 4 4 6 6 6 8 8 8 8 10 10
100 4 4 6 6 6 6 6 8 8 8 10
125 4 4 4 6 6 6 6 8 8 8 8
150 3 3 4 4 6 6 6 6 6 8 8
200 25 3 4 4 4 4 6 6 6 6 6
250 25 3 3 4 4 4 4 6 6 6 6
NOTES1 Steam nozzle sizes given in inches2 Recommended steam nozzle sizes based on 4000 to 5000 fpm steam velocity3 All standard steam nozzle sizes for 150 psig design pressure or greater are the sameas 125 psig operating pressure on the above table To increase or decrease the standardsize request the change with your local Cleaver-Brooks authorized representative4 Shaded area denotes special surge load baffles must be installed to avoid possible wa-ter carry-over5 For incremental operating pressures see Table I3-1 Steam Systems Fundamentals
Table A1-28 Recommended Steam Nozzle Size (for
4000 to 5000 fpm nozzle velocity)
Table A1-29 Recommended Non-Return Valve Size
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 4243
Model CBLE 125-800 HP Boilers
42
1 Shortest boiler room length (Dwg A) is obtained by allowing for possible future tube replacement (from front or rearof boiler) through a window or doorway Allowance is only made for minimum door swing at each end of the boilerThis arrangement provides sufficient aisle space at the front of the boiler but a ldquotightrdquo space condition at the rear
If space permits approximately 15 additional feet should be allowed at the rear for additional aisle and workingspace
2 Next shortest boiler room length (Dwg B) is obtained by allowing for possible future tube replacement from thefront of the boiler Allowance is only made for minimum door swing at the rear
If space permits approximately 15 additional feet should be allowed at the rear for additional aisle and workingspace
3 A slightly longer boiler room (Dwg C) is obtained by allowing for possible future tube replacement from the rear ofthe boiler Allowance for door swing at the front provides sufficient aisle and working space at the front
Figure A1-21 Boiler Room Length (Typical Layouts)
BOILER HP 125-200 250-350 400-800
Dimension A 82 93 102
Dimension B 115 141 171
NOTES1 Recommended Minimum Distance Between Boiler and Wall Dimen-
sion ldquoArdquo allows for a ldquoclearrdquo 42 aisle between the water col-umn on the boiler and the wall If space permits this aisle
should be widened 2 Recommended Minimum Distance Between BoilersDimension ldquoBrdquo between boilers allows for a ldquoclearrdquo aisle of42 - 125 -200 hp48 - 250-350 hp60 - 400-800 hpIf space permits this aisle should be widened
Figure A1-22 Boiler Room Width (Typical Layout)
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 4343
Model CBLE 125-800 HP Boilers
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 943
Model CBLE 125-800 HP Boilers
9
Description DIM Boiler HP
250 300 350
WIDTHS
Width Overall O 1065 1065 10875Center to ALWCO P 485 485 485
Center to Outside Control Panel Q 58 58 58
Center to Lagging R 42 42 42
Center to WC S 5375 5375 5375
Base Inside W 56 56 56
Base Outside X 64 64 64
Boiler ID F 78 78 78
CONNECTIONS
Electric - Main Power Supply AA 460 3 60 460 3 60 460 3 60
Surface Blowoff (with collector pipe) BB 1 1 1
Steam Outlet 15 (150 Flange) CC 12 12 12
Steam Outlet 150 (300 Flange) CC 6 6 6
Chemical Feed FF 1 1 1
Feed Water (2) GG 2 2 25Blowdown (2) 150 HH 15 15 15
Drain (2) 15 HH 2 2 2
Water Column Blowdown JJ 075 075 075
Gauge Glass Blowdown KK 025 025 025
VENT STACK
Diameter (OD) (flgd connection) 20 20 20
CLEARANCES
Rear Door Swing 43 43 43
Front Door Swing 89 89 89
Tube Removal Rear 131 157 187
Tube Removal Front 116 142 172
MINIMUM BOILER ROOM LENGTH ALLOWING FOR DOOR SWING AND TUBE REMOVAL
From Rear of Boiler 364 417 477
From Front of Boiler 303 356 416
Through Window or Doorway 275 302 332
WEIGHT IN LBS
Normal Water Capacity 10670 13000 15465
Approx Ship Wt 15 psig 21500 23600 26800
Approx Ship Wt 150 psig 22800 25200 27800
Approx Ship Wt 200 psig 24600 27200 29300
Table A1-4 Model CB-LE Steam Boiler Dimensions 78rdquo (15 - 150 psig Design Pressure) - Sheet 2 of 2
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 1043
Model CBLE 125-800 HP Boilers
10
A
BC
D
E
F
G
HI J
K
AA
BB CC
DD
EE
FF
JJ
GG
HH HH
L
M
N
O
P Q
R S
T
UV
W
X
Y
JJ
JJ
KK
GGGG
Y
FARSIDE
Table A1-5 Model CB-LE Steam Boiler Dimensions
96rdquo (15 - 150 psig Design Pressure) - Sheet 1 of 2
(measurements shown in inches)
Description DIMBoiler HP
400 500 600 700 800
LENGTHS
Length Overall A 20575 22775 25975 29875 29875
Shell B 14675 1675 19975 23275 23275
Front Head Extension C 27 28 28 34 34
Front Ring Flange to Nozzle - 15 D 98 101 96 112 112
Front Ring Flange to Nozzle - 150 D 96 100 96 112 112
Rear Head Extension E 32 32 32 32 32
Front Ring Flange to Panel G 26 26 26 26 26
Ring Flange to Base H 05 05 05 05 05
Base Frame I 13375 15475 18675 21975 21975
Rear Flange Ring to Base J 125 125 125 125 125
Figure A1-3 CB-LE Steam - 400-800 HP
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 1143
Model CBLE 125-800 HP Boilers
11
Description DIM Boiler HP
400 500 600 700 800
HEIGHTS
Ht Overall K 134 134 134 134 134Base to Vent Outlet L 126 126 126 126 126
Base to Boiler Centerline M 67 67 67 67 67
Base to Gas Train N 12 12 12 12 12
Base to Panel Top T 75 75 75 75 75
Base to Panel Bottom U 15 15 15 15 15
Height of Base V 12 12 12 12 12
Base to Steam Nozzle Y 1215 1235 1215 121 121
WIDTHS
Width Overall O 124 12425 124 124 124
Center to ALWCO P 575 575 575 575 575
Center to Outside Control Panel Q 665 665 665 665 665
Center to Lagging R 51 51 51 51 51
Center to WC S 63 63 63 63 63
Base Inside W 5888 5888 5888 5888 5888
Base Outside X 7188 7188 7188 7188 7188
Boiler ID F 96 96 96 96 96
CONNECTIONS
Electric - Main Power Supply AA 460 3 60 460 3 60 460 3 60 460 3 60 460 3 60
Surface Blowoff (with collector pipe) BB 1 1 1 1 1
Steam Outlet 15 (150 Flange) CC 12 12 12 12 12
Steam Outlet 150 (300 Flange) CC 6 8 8 8 8
Chemical Feed FF 1 1 1 1 1
Feed Water (2) GG 25 25 25 25 25
BlowdownDrain (2) HH 2 2 2 2 2
Water Column Blowdown JJ 075 075 075 075 075
Gauge Glass Blowdown KK 025 025 025 025 025
VENT STACK
Diameter (OD) (flgd connection) 24 24 24 24 24
CLEARANCES
Rear Door Swing 53 53 53 53 53Front Door Swing 108 108 108 108 108Tube Removal Rear 131 152 184 217 217
Tube Removal Front 114 135 167 200 200
MINIMUM BOILER ROOM LENGTH ALLOWING FOR DOOR SWING AND TUBE REMOVAL
From Rear of Boiler 386 428 492 558 558
From Front of Boiler 314 356 420 486 486
Through Window or Doorway 308 329 361 394 394
WEIGHT IN LBS
Normal Water Capacity 14810 15950 19270 23000 23000
Approx Ship Wt 15 psig 33500 37110 42300 49500 49600 Approx Ship Wt 150 psig 36570 39970 45025 52050 52150
Approx Ship Wt 200 psig 39680 43580 49400 57315 57415
Table A1-5 Model CB-LE Steam Boiler Dimensions
96rdquo (15 - 150 psig Design Pressure) - Sheet 2 of 2
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 1243
Model CBLE 125-800 HP Boilers
12
BOILER HP DIM 125 150 200
LENGTHS
Overall (60 ppm System) A 171-12 196-12 228-12
Shell B 125 149 180
Base Frame C 112 136 167
Front Head Extension (60 ppm System) D 27 28 29
Rear Head Extension E 19-12 19-12 19-12
Front Ring Flange to Outlet HH 114 136 167
Front Ring Flange to Return H 89 102 131
Ring Flange to Base F 12 12 12
Over Tubesheets V 113 137 168
Shell Extension P 12 12 12
Rear Flange Ring to Base G 12-12 12-12 12-12
Table A1-6 Model CB-LE Hot Water Boiler Dimensions
60rdquo (30 and 125 psig Design Pressure) - Sheet 1 of 2
Figure A1-4 CB-LE Hot Water - 125-200 HP
R
F G
WW
P
BB
D E
GG
Q
Z
Y T U
RR - RF - RD
X
HH
A
B
HI
L K
OO O
KK
M
N
EE
FF
DD
V
J
C
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 1343
Model CBLE 125-800 HP Boilers
13
BOILER HP DIM 125 150 200
WIDTHS
Overall I 75-12 75-12 75-12
ID Boiler J 60 60 60
Center to Entrance Box K 42-12 42-12 42-12
Center to Outside Hinge KK 35 35 35
Center to Lagging L 33 33 33
Base Outside M 52-12 52-12 52-12
Base Inside N 44-12 44-12 44-12
HEIGHTS
Overall OO 87 87 87
Base to Vent Outlet O 87 87 87
Base to Return and Outlet X 82-38 82-38 82-38
Height of Base Q 12 12 12
Base to Bottom of Boiler R 16 16 16
BOILER CONNECTION
Auxiliary Connection Z 1 1 1
Water Return Flange T 6A 6A 6A
Water Outlet Flange (2 Dip Tube Included) U 6A 6A 6A
Drain Front and Rear W 1-12 1-12 2
Air Vent Y 1-12 1-12 1-12
VENT STACK
Diameter (flgd connection) BB 16 16 16
MINIMUM CLEARANCES
Rear Door Swing DD 32 32 32
Front Door Swing EE 67 67 67
Tube Removal Rear FF 115 139 170Tube Removal Front GG 103 127 158
MINIMUM BOILER ROOM LENGTH ALLOWING FOR DOOR SWING AND TUBE REMOVAL FROM
Rear of Boiler RR 307 355 417
Front of Boiler RF 260 308 370
Thru Window or Doorway RD 224 248 279
WEIGHT IN LBS
Water Capacity Flooded 7670 9295 11130
Approx Ship Wgt ndash 30 psigApprox Ship Wgt ndash 125 psig
1140011800
1250012900
1450014900
NOTES All connections are threaded unless indicatedA ANSI 150 psig flange
Table A1-6 Model CB-LE Hot Water Boiler Dimensions
60rdquo (30 and 125 psig Design Pressure) - Sheet 2 of 2
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 1443
Model CBLE 125-800 HP Boilers
14
BOILER HP DIM 250 300 350
LENGTHS
Overall (60 ppm System) A 191-12 220 252
Shell B 144 171 201
Base Frame C 131 158 188
Front Head Extension (60 ppm System) D 23-12 25 27
Rear Head Extension E 24 24 24
Front Ring Flange to Return H 103-12 130 160
Front Ring Flange to Outlet HH 131 158 188
Ring Flange to Base F 12 12 12
Over Tubesheets V 129 156 186
Shell Extension P 15 15 15
Rear Flange Ring to Base G 12-12 12-12 12-12
Table A1-7 Model CB-LE Hot Water Boiler Dimensions78rdquo (30 and 125 psig Design Pressure) - Sheet 1 of 2
Figure A1-5 CB-LE Hot Water 250-350 HP
s k o o r B r e v a
e l C
R
F G
WW
P
BB
D E
GG
Q
Z
Y T U
RR - RF - RD
X
HH
A
B
HI
L K
OOO
KK
M
N
EE
FF
DD
V
J
C
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 1543
Model CBLE 125-800 HP Boilers
15
BOILER HP DIM 250 300 350
WIDTHS
Overall I 93 93 93
ID Boiler J 78 78 78
Center to Entrance Box K 51 51 51
Center to Outside Hinge KK 51 51 51
Center to Lagging L 42 42 42
Base Outside M 64 64 64
Base Inside N 52 52 52
HEIGHTS
Overall OO 115 115 115
Base to Vent Outlet O 106 106 106
Base to Return and Outlet X 101-12 101-12 101-12
Height of Base Q 10 10 10
Base to Bottom of Boiler R 17 17 17
BOILER CONNECTION
Auxiliary Connection Z 1-14 1-14 1-14
Water Return Flange (2 Dip Tube included) T 8A 8A 8A
Water Outlet Flange (2 Dip Tube Included) U 8A 8A 8A
Air Vent Y 1-12 1-12 1-12
Drain Front and Rear W 2 2 2
VENT STACK
Diameter (flgd connection) BB 20 20 20
MINIMUM CLEARANCES
Rear Door Swing DD 43 43 43
Front Door Swing EE 89 89 89
Tube Removal Rear FF 131 157 187
Tube Removal Front GG 116 142 172
MINIMUM BOILER ROOM LENGTH ALLOWING FOR DOOR SWING AND TUBE REMOVAL FROM
Rear of Boiler RR 364 417 477
Front of Boiler RF 303 356 416
Thru Window or Doorway RD 275 302 332
WEIGHT IN LBS
Water Capacity Flooded 13880 16840 20090
Approx Ship Wgt ndash 30 psigApprox Ship Wgt ndash 125 psig
2140022200
2350024300
2670027500
NOTES All connections are threaded unless indictedA ANSI 150 psig flange
Table A1-7 Model CB-LE Hot Water Boiler Dimensions
78rdquo (30 and 125 psig Design Pressure) - Sheet 2 of 2
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 1643
Model CBLE 125-800 HP Boilers
16
BOILER HP DIM 400 500 600 700 800
LENGTHS
Overall (60 ppm System) A 206 228 262 299 300
Shell B 147 168 200 233 233
Base Frame C 134 155 187 220 220
Front Head Extension (60 ppm System) D 27 28 30 34 35
Rear Head Extension E 32 32 32 32 32
Shell Ring Flange to Base F 12 12 12 12 12
Rear Ring Flange to Base G 12-12 12-12 12-12 12-12 12-12
Shell Flange to Outlet HH 139-12 156-12 182-12 216-12 216-12
Shell Flange to Return H 107 125 151-12 185 185
Over Tubesheets V 130 151 183 216 216
Shell Extension P 17 17 17 17 17
Table A1-8 Model CB-LE Hot Water Boiler Dimensions96rdquo (30 and 125 psig Design Pressure) - Sheet 1 of 2
Figure A1-6 CB-LE Hot Water 400-800 HP
s k o o r B r e v a
e l C
R
F G
WW
P
BB
D E
GG
Q
Z
Y T U
RR - RF - RD
X
HH
A
B
HI
L K
OOO
KK
M
N
EE
FF
DD
V
J
C
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 1743
Model CBLE 125-800 HP Boilers
17
WIDTHS
Overall I 113 113 113 113 115
ID Boiler J 96 96 96 96 96
Center to Entrance Box K 62 62 62 62 64
Center to Outside Hinge KK 62 62 62 62 62
Center to Lagging L 51 51 51 51 51
Base Outside M 72 72 72 72 72
Base Inside N 56 56 56 56 56
HEIGHTS
Overall OO 134 134 134 134 134
Base to Vent Outlet O 126 126 126 126 126
Height of Base Q 12 12 12 12 12
Base to Bottom of Boiler R 19 19 19 19 19
Base to Return and Outlet X 121-916 121-916 121-916 121-916 121-916
BOILER CONNECTIONS
Auxiliary Connection Z 1-14 1-14 1-14 1-14 1-14
Drain Front and Rear W 2 2 2 2 2
Water Return T 10A 10A 12A 12A 12A
Water Outlet (2rdquo Dip Tube Included) U 10A 10A 12A 12A 12A
Air Vent Y 2 2 2 2 2
VENT STACK
Diameter (Flanged Connection) BB 24 24 24 24 24
MINIMUM CLEARANCES
Rear Door Swing DD 53 53 53 53 53
Front Door Swing EE 108 108 108 108 108
Tube Removal Rear FF 131 152 184 217 217
Tube Removal Front GG 114 135 167 200 200
MINIMUM BOILER ROOM LENGTH ALLOWING FOR DOOR SWING AND TUBE REMOVAL FROM
Rear of Boiler RR 386 428 492 558 558
Front of Boiler RF 314 356 420 486 486
Thru Window or Doorway RD 308 329 361 394 394
WEIGHT IN LBS
Normal Water Capacity 20015 23300 28260 33360 33360
Approx Ship Wgt ndash 30 psig
Approx Ship Wgt ndash 125 psig
33300
37270
36900
40780
42150
46005
49650
53300
49750
53400
NOTES All connections are threaded unless indicated
A ANSI 150 psig flange
BOILER HP DIM 400 500 600 700 800
Table A1-8 Model CB-LE Hot Water Boiler Dimensions
96rdquo (30 and 125 psig Design Pressure) - Sheet 2 of 2
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 1843
Model CBLE 125-800 HP Boilers
18
BOILER HP
MOTOR HP
60PPM
30PPM
25PPM
20PPM
125 5 10 5 10
150 75 10 10 10
200 15 15 20 NA
250 75 10 15 15
300 10 15 20 30
350 15 25 40 40
400 10 15 20 20
500 15 20 25 30
600 25 30 50 60
700 30 50 75 75
800 50 75 NA NA
NOTES For elevations above 700rsquo - contact your local
Cleaver-Brooks authorized representative
Table A1-9 Model CB-LE Blower Motor Selection -
Operating Pressures 150 psig and Less and All Hot
Water Boilers
BOILER HP
MOTOR HP
60
PPM
30
PPM
25
PPM
20
PPM
125 5 10 10 10
150 10 10 10 15
200 15 20 20 NA
250 75 10 15 20
300 10 20 30 40
350 20 30 40 50
400 10 15 20 25
500 20 25 30 40
600 25 40 60 60
700 40 60 75B 75C
800 60 75A NA NA
NOTES For elevation above 700rsquo - contact your local
Cleaver-Brooks authorized representative
A Downrate to 770 hp
B Downrate to 675 hp
C Downrate to 660 hp
Table A1-10 Model CB-LE Blower Motor Selection -
Operating Pressures Greater than 150 psig (Steam
Boilers)
09-09
Table A1-11 Blower Motor Selection CB-LE NTI BoilersTable A1-12 Turndown Guarantee for CB-LE NTI
Boilers - Natural Gas amp 2 Oil
Boiler SizeTurndown
9 ppm 15 ppm
125 41 41
150 41 51
200 41 51
250 51 51
300 51 51
350 51 51
400 51 61
500 51 61
600 61 61
700 71 71
800 71 71
800 HP to be derated to 720 HP for 9 ppm and 750 HP
for 15 ppm
Altitude 700 ft and less - Design Pressure 150 psi and less
800 HP - to be de-rated to 720 HP for 9 ppm and to 750 HP for 15 ppm
mpp9mpp51Nominal
Boiler Size Blower Motor HP Blower Motor HP
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 1943
Model CBLE 125-800 HP Boilers
19
BOILER HPFUEL
SERIES
HOT WATER STEAM
30 PSIG 125 PSIG 15 PSIG 150 PSIG 200 PSIG
125100 11200 11600 11300 12000 12600200 11400 11800 11500 12400 13000
700 11300 11700 11400 12300 12900
150
100 12300 12700 12400 13200 13900
200 12500 12900 12600 13500 14200
700 12300 12700 12400 13300 14000
200
100 14400 14800 14500 15500 16300
200 14500 14900 14600 15600 16400
700 14500 14900 14600 15600 16400
250
100 20700 21500 20800 22000 23800
200 21400 22200 21500 22800 24600
700 20900 21700 21000 22500 24300
300
100 23100 23900 23200 24800 26800
200 23500 24300 23600 25200 27200
700 23400 24200 23500 25000 27000
350
100 26200 27000 26300 27600 29100
200 26700 27500 26800 27800 29300
700 26400 27200 26500 27700 29200
400
100 33000 36970 33200 36270 39380
200 33300 37270 33500 36570 39680
700 33200 37170 33400 36470 39580
500
100 36600 40470 36810 39670 43480
200 36900 40780 37110 39970 43580
700 36800 40680 37010 39870 43280
600
100 41850 45905 42000 44725 49100
200 42150 46005 42300 45025 49400
700 42050 45915 42200 44925 49300
700800
100 49450 53000 49300 51850 57015
200 49750 53300 49600 52150 57315
700 49650 53200 49500 52050 57215
NOTES1 Weights shown are based on standard product offering for current listed boilers If units are of special design and construction actual weightwill be determined at time of shipment Shipment will then be made on shippers weight and count All weights are in US pounds
Table A1-13 Model CB-LE Boiler Weights
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
20
VALVE
SETTING15 PSIG STEAM 100 PSIG STEAM 125 PSIG STEAM 150 PSIG STEAM 200 PSIG STEAM 250 PSIG STEAM 300 PSIG STEAM
BOILERHP
NO OF
VALVES-REQD
OUTLET
SIZE(IN)
NO OF
VALVES-REQD
OUTLET
SIZE(IN)
NO OF
VALVESREQD
OUTLET
SIZE(IN)
NO OF
VALVES-REQD
OUTLET
SIZE(IN)
NO OF
VALVES-REQD
OUTLET
SIZE(IN)
NO OF
VALVESREQD
OUTLET
SIZE(IN)
NO OF
VALVESREQD
OUTLET
SIZE(IN)
125 1 3 2 1-12 2(1) 1-12(1) 1-14
2(1) 1-12(1) 1-14
2(1) 1-14(1) 1
2 1 2 1
150 1 3 2(1) 2(1) 1-12
2 1-14 2(1) 1-12(1) 1-14
2(1) 1(1) 1-14
2 1 2 1
200 2 2-12 2 2 2 1-12 2 1-12 2(1) 1-12(1) 1-14
2 1-14 2(1) 1(1) 1-14
250 2(1) 2-12(1) 3
2(1) 2-12(1) 2
2(1)2(1)1-12
2(1) 2(1) 1-12
2(1)1-12(1)1-14
2(1) 1-12(1) 1-14
2 1-14
300 2 3 2(1) 2-12(1) 2
2 2 2(1) 2(1) 1-12
2 1-12 2(1)1-12(1)1-14
2(1) 1-12(1) 1-14
350 3(1) 2(2) 3
3(1) 2-12(2) 2
2(1)2(1)1-12
2 2 2(1) 1-12(1) 2
2 1-12 2(1) 1-12(1) 1-14
400 3(2) 3(1) 2-12
3(1) 2(2) 2-12
2(1)2(1)2-12
2(1) 2-12(1) 2
2(1) 1-12(1) 2
2(1) 2(1) 1-12
2 1-12
500 3 (3) 3 3 2-12 2 2-12 2(1) 2-12(1) 2
2(1) 2(1) 2-12
2(1) 2(1)1-12
2(1) 1-12(1) 2
600 4 3 4(3) 2-12(1) 2
3 2-12 2 2-12 2(1) 2(1) 2-12
2 2 2 2
700 5(3) 3(2) 2-12
5(3) 2-12(2) 2
3 2-12 3(2) 2-12(1) 2
2 2-12 2(1) 2(1) 2-12
2 2
800 5(3) 3(2) 2-12
5(3) 2-12(2) 2
4(3) 2-12(1) 2
3(2) 2-12(1) 2
2 2-12 2(1) 2(1) 2-12
2(1) 2(1) 2-12
NOTES Valve manufacturers are Kunkle Consolidated or Conbraco depending on availability This table revised 042012
Table A1-14 Steam Boiler Safety Valve Openings
VALVE
SETTING 30 PSIG HW 60 PSIG HW 100 PSIG HW 125 PSIG HW
BOILER HPNO OF
VALVESREQD
OUTLETSIZE(IN)
NO OFVALVESREQD
OUTLETSIZE(IN)
NO OFVALVESREQD
OUTLETSIZE(IN)
NO OFVALVESREQD
OUTLETSIZE(IN)
125 1 2-12 1 2 1 2 1 1-14
150 1 2-12 1 2-12 1 2 1 2
200 2(1) 2-12(1) 1-14
1 2-12 1 2 1 2
250 2 (1) 2(1) 2-12
1 2-12 1 2-12 1 2
300 2 2-12 2(1) 1(1) 2-12
1 2-12 1 2-12
350 3(2) 2-12(1) 1
2(1) 2-12(1) 2
1 2-12 1 2-12
400 3 (1) 2(2) 2-12 2 (1) 2(2) 2-12 2 (1) 1(1) 2-12 1 2-12
500 4 (1) 1(3) 2-12
2 2-12 2(1) 2-12(1) 1-14
2(1) 1(1) 2-12
600 4(3) 2-12(1) 2
3(1) 1-1(2) 2-12
2(1) 2(1) 2-12
2(1) 2-12(1) 1-14
700 amp 800 5 (1) 1(4) 2-12
3(1) 2(2) 2-12
2 2-12 2(1) 2-12(1) 2
NOTES Hot water relief valves are Kunkle 537
Table A1-15 Hot Water Boiler Relief Valve Openings
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Model CBLE 125-800 HP Boilers
21
BOILER HP A B C D E F G X1 X2 X3
125 6 9 112 39-12 57-12 4 44-12 10 9-34 22-12
150 6 9 136 39-12 57-12 4 44-12 10 9-34 22-12
200 6 9 167 39-12 57-12 4 44-12 10 9-34 22-12
250 6 12 131 46 70 4 56 10 22 22-12
300 6 12 158 46 70 4 56 10 22 22-12
350 6 12 188 46 70 4 56 10 22 22-12
NOTE
All numbers in table are in inches
6-inch high mounting piers recommended for use beneath the boiler base frame The use of these piers provides increased inspection
accessibility to the piping beneath the boiler and added height for washing down the area beneath the boiler
Figure A1-7 Space Required to Open Rear Head on Model CB-LE Boilers Equipped with Davits
BOILER HPDIMENSIONS (INCHES)
A B C D E
CB-125 THRU CB-200 33 55 45 68 32
CB-250 THRU CB-350 42 69 58 86 43
CB-400 THRU CB-800 51 88 71 109 53
Figure A1-8 Model CB-LE Boiler Mounting Piers (60rdquo and 78rdquo)
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Model CBLE 125-800 HP Boilers
22
BOILER HP A B C D E F G
400 6 14 134 50 78 6-12 58-78
500 6 14 155 50 78 6-12 58-78
600 6 14 187 50 78 6-12 58-78
700-800 6 14 220 50 78 6-12 58-78
NOTE1 All numbers in table are in inches2 6-inch high mounting piers recommended for use beneath the boiler base frame The use of these piers provides in-
creased inspection accessibility to the piping beneath the boiler and added height for washing down the area beneaththe boiler
Figure A1-9 Model CB-LE Boiler Mounting Piers (96rdquo)
CBLE 250-350HP
CBLE 400-800HP
Motor HP Hole Number
75 1
15 1
25 2
40 3
Motor HP Hole Number
10 1
20 1
30 250 2
75 3
Figure A1-10 Front Davit Support
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23
BOILERHP
VIEW
ALL DIMENSIONS IN INCHES
A B C D E
125 All B 80-14 29-34 70-12 10 3
150 All B 80-14 29-34 83-12 10 3
200 All B 80-14 29-34 114-12 10 3
250Steam B 99 36 72 10 3
Hot Water B 99 36 81 10 3
300
Steam B 99 36 99 10 3
Hot Water B 99 36 108 10 3
350Steam B 99 36 129 10 3
Hot Water B 99 36 138 10 3
400Steam B 119 35-34 78 11 3
Hot Water B 119 35-34 78 11 3
500Steam B 119 35-34 99 11 3
Hot Water B 119 35-34 99 11 3
600Steam B 119 35-34 131 11 3
Hot Water B 119 35-34 131 11 3
700 amp 800Steam B 119 35-34 164 11 3
Hot Water B 119 35-34 164 11 3
NOTE A B and C dimensions may vary by 12 inch
Figure A1-11 Lifting Lug Location Model CB-LE Boilers
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Model CBLE 125-800 HP Boilers
24
PERFORMANCE DATA
The Low Emission Option provides NOx reduction at current published andpredicted fuel-to-steam efficiencies
Specifying BoilerEfficiency
Cleaver-Brooks offers an industry leading fuel-to-steam boiler efficiency guaranteefor Model CB-LE Firetube Boilers The guarantee is based on the fuel-to-steam
efficiencies shown in the efficiency tables and the following conditions Theefficiency percent number is only meaningful if the specific conditions of theefficiency calculations are clearly stated in the specification (see Cleaver-Brookspublication CB-7768 for a detailed description of efficiency calculations)
When specifying the efficiencies in the tables be sure to include the specificguarantee conditions to maximize the effectiveness of your efficiency specification Ifyou have any questions regarding the efficiency specifications please contact yourlocal Cleaver-Brooks authorized representative
EfficiencySpecification
The boiler manufacturer shall guarantee that at the time of startup the boiler willachieve fuel-to-steam efficiency (as shown in Table A1-16 and Table A1-17) at100 firing rate (add efficiency guarantees at 25 50 and 75 of rating if
required) If the boiler(s) fail to achieve the corresponding guaranteed efficiency aspublished the boiler manufacturer will rebate to the ultimate boiler owner tenthousand dollars ($10000) for every full efficiency point (10) that the actualefficiency is below the guaranteed level
The specified boiler efficiency is based on the following conditions
1 Fuel specification used to determine boiler efficiency
bull Natural Gas
Carbon (wt) = 6998Hydrogen (wt) = 2231Sulfur (wt) = 00
Heating value Btulb = 21830bull No 2 Oil
Carbon (wt) = 858Hydrogen (wt) = 127Sulfur (wt) = 02Heating value Btulb = 19420
No 6 Oil
Carbon (wt) = 866Hydrogen (wt) = 109Sulfur (wt) = 209Heating value Btulb = 18830
2 Efficiencies are based on ambient air temperature of 80 degF relative humidity of30 and 15 excess air in the exhaust flue gas
3 Efficiencies are based on manufacturerrsquos published radiation and convectionlosses (For Cleaver-Brooks radiation and convection losses see BoilerEfficiency Facts Guide publication number CB-7767)
4 Any efficiency verification testing will be based on the stack loss method
For efficiencies and stack temperatures at operating pressures not listed followthese procedures
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Model CBLE 125-800 HP Boilers
25
When the operating steam pressure is between 10 psig and 125 psig interpolatethe values from the efficiency tables
When the operating steam pressure is above 125 psig estimated efficiency can becalculated as follows
Example
Boiler 350 hpFuel natural gas
Operating steam pressure 200 psig
Find the fuel-to-steam efficiency at 100 firing rate From Table A1-16 for a 350hp boiler operating at 100 firing rate and an operating steam pressure of 125psig the efficiency is 825
Using Figure A1-12 note that the stack temperature increases 36 degF at the higheroperating pressure To estimate boiler efficiency use this rule of thumb For every40 degF increase in stack temperature efficiency decreases by 1 Since the stacktemperature rise is 36 degF the decrease in the boiler efficiency at 200 psig operatingpressure is calculated as follows 3640 =9 Therefore the boiler efficiency at200 psig operating pressure is 825 -9 = 816
Emissions The emission data included in this section consists of typical emission levels forModel CB boilers equipped with 60 30 25 and 20 ppm LE Options when firingnatural gas and No 2 oil
Notice
The data in Table A1-18 and Table A1-19 represent typical emission levels only
Guaranteed emission levels are available from your local Cleaver-Brooks authorized
representative
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Model CBLE 125-800 HP Boilers
26
BOILER
HP
OPERATING PRESSURE = 10 psig OPERATING PRESSURE = 125 psig
OF LOAD OF LOAD
25 50 75 100 25 50 75 100
125 833 836 834 832 804 809 810 810
150 844 846 845 843 815 820 820 821
200 850 853 851 849 822 827 827 827
250 850 847 840 833 820 820 816 813
300 853 853 846 839 826 827 822 819
350 853 857 852 845 826 832 828 825
400 845 847 846 844 818 822 824 822
500 855 857 855 852 828 832 833 831
600 857 860 858 856 829 835 836 835
700 857 862 860 857 830 836 836 836
800 858 861 859 856 831 836 837 835
Table A1-16 Predicted Fuel-to-Steam Efficiencies - Natural Gas
Figure A1-12 Predicted Stack Temperature Increase for Pressure Greater Than 125 psig
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Model CBLE 125-800 HP Boilers
27
Table A1-18 CB-LE Boilers - Natural Gas Emission Levels
POLLUTANT
ESTIMATED LEVEL
60 ppm 30 ppm 25 ppm 20 ppm 15 ppm 9 ppm
CO ppmA
lbMMBtu
50150B
004011
50150B
004011
50150B
004011
50150B
004011
50
004
50
004
NOx ppmA
lbMMBtu
60
007
30
0035
25
003
20
0024
15
0018
9
0011
SOx ppmA
lbMMBtu
1
0001
1
0001
1
0001
1
0001
1
0001
1
0001
HCVOC5 ppmA
lbMMBtu
10
0004
10
0004
10
0004
10
0004
10
0004
10
0004
PM ppmA
lbMMBtu
-
001
-
001
-
001
-
001
-
001
-
001
A ppm levels are given on a dry volume basis and corrected to 3 oxygen (15 excess air)
B CO emission for 60 30 25 amp 20 ppm system is 50 ppm (004 lbMMBtu) when boiler is operating above 50 of rated capacity
CO emission is 150 ppm (011 lbMMBtu) when boiler is operating below 50 of rated capacity
Table A1-17 Predicted Fuel-to-Steam Efficiencies - No 2 Oil
BOILER
HP
OPERATING PRESSURE = 10 psig OPERATING PRESSURE = 125 psig
OF LOAD OF LOAD
25 50 75 100 25 50 75 100
125 867 869 867 866 837 842 843 843
150 878 880 878 876 848 853 853 854
200 884 887 884 882 856 860 860 860
250 883 881 874 867 853 853 849 847
300 886 887 880 873 859 860 855 852
350 886 890 885 878 859 866 861 858
400 879 881 879 876 851 855 856 855
500 889 890 889 886 861 865 866 864
600 890 894 892 890 862 868 869 868
700 891 895 893 891 863 869 870 869
800 892 895 893 890 864 869 870 868
Table A1-19 CB-LE Boilers - No 2 Oil Emission Levels
POLLUTANTESTIMATED LEVEL
60 ppm LE Option 30 25 20 ppm LE Option 15 ppm 9 ppm
CO ppmA
lbMMBtu
50
0039
50
0039
50
0039
50
0039
NOx ppmA
lbMMBtu140
018690
012085
011370
0093
SOx ppmA
lbMMBtu
278
052
278
052
278
052
278
052
HCVOCs ppmA
lbMMBtu
4
0002
4
0002
4
0002
4
0002
PM ppmA
lbMMBtu
-
0025
-
0025
-
0025
-
0025
A ppm levels are given on a dry volume basis and corrected to 3 oxygen (15 excess air)
BASED ON THE FOLLOWING CONSTITUENT LEVELS
Fuel-bound Nitrogen content = 0015 by weight
Sulfur content = 05 by weight
Ash content = 001 by weight
09-09
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Model CBLE 125-800 HP Boilers
28
ENGINEERING DATA
Sound Level Table A1-20 gives a summary of predicted sound pressure levels for Model CBboilers with 30 ppm LE Options Contact your local Cleaver-Brooks authorizedrepresentative for sound levels or other LE Options
Units - The units for the sound level tables are dbA (decibels measured on the A-weighted scale) in reference to 00002 microbars (20 micro-Newtons per square
meter) Their reference are standardly used in specifying and reporting soundpressure levels on industrial equipment
Test Method - The sound pressure levels in the above tables were obtained fromtests in accordance with the ldquoABMA Test Code for the Measurement of Sound fromPackaged Boilersrdquo In accordance with this code the sound pressure levels reportedwere measured on the boiler centerline 4-12 feet vertically above the bottom of thebase rails and 3 feet horizontally in front of the end of the blower motor or frontsurface of the electrical cabinet
Sound Level Meter - The sound level meter used complies with ANSI S14 Type 1(Precision) The readings are taken with the meter set for slow response andcorrected for background levels
Sound Pressure - The large size boilers the need for auxiliary equipment and thenecessary interconnecting piping make it impractical (and sometimes impossible) toprovide a boiler testing environment which is suitable for taking the data needed todevelop Sound Pressure Power levels
Typical Values - Sound pressure levels (dbA) for the same boiler will vary betweenboiler rooms Sound levels will vary with motor type NOx levels and altitudes Inaddition variations will occur between different people using different sound meterson the same boiler And finally no two boilers can be expected to give precisely thesame sound levels For these reasons we can only predict but not guarantee soundlevels (dbA)
BOILER HP 125 150 200 250 300 350 400 500 600 700 800
HFO dbA 84 84 84 83 84 85 84 85 85 88 90
LFO dbA 82 82 83 81 82 83 82 83 83 84 89
HFG dbA 82 82 83 82 83 84 83 83 85 87 90
LFG dbA 81 81 82 81 82 83 81 81 82 84 88
NOTES1 Sound pressure levels measured on boilers operating in various locations and ex-
pressed in dbA are as shown2 Based on standard altitude fans and fan motors 60 Hz3 Contact your local Cleaver-Brooks authorized representative for sound levels of 60 25or 20 ppm LE Options
ABBREVIATIONS
HF = High Fire LF = Low Fire O = Oil G = Gas
Table A1-20 Model CBLE Predicted Sound Levels 30 ppm NOx Systemss
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Model CBLE 125-800 HP Boilers
29
Gas-Fired Burners Table A1-21 shows gas pressure with standard over- and undersized gas trains
Table A1-22 shows minimum required gas pressure altitude conversion
Figure A1-13 shows standard gas train sizes and locations for Model CB FiretubeBoilers
Figure A1-14 shows typical gas train piping layouts for multiple boiler applications
Figure A1-15 shows standard gas train components
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Model CBLE 125-800 HP Boilers
30
Table A1-21 Standard Undersize and Oversize Gas Trains
CBLE
BOILER HP GAS TRAINSIZE
UPSTREAMVALVE
DOWNSTREAMVALVE
EMISSIONS LEVEL 09 ppm 15 ppm 20 ppm 30 ppm 60 ppm UC
125 HP 15 in BB BB 33 - 49 psi 33 - 49 psi 08 - 50 psi 07 - 50 psi 07 - 50 psi 07 - 50 ps
125 HP 15 in PC PC 34 - 50 psi 34 - 50 psi 09 - 50 psi 08 - 50 psi 08 - 50 psi 08 - 50 ps
125 HP 20 in BB BB 31 - 33 psi 31 - 33 psi 06 - 08 psi 06 - 07 psi 05 - 07 psi 05 - 07 ps
125 HP 20 in PC PC 31 - 34 psi 31 - 34 psi 06 - 09 psi 06 - 08 psi 06 - 08 psi 05 - 08 ps
125 HP 25 in PC PC 30 - 31 psi 30 - 31 psi 04 - 06 psi 04 - 06 psi 04 - 05 psi 04 - 05 ps
125 HP 30 in PC PC 29 - 30 psi 29 - 30 psi 04 - 04 psi 04 - 04 psi 04 - 04 psi 03 - 04 ps
125 HP 40 in PC PC 29 - 29 psi 29 - 29 psi 04 - 04 psi 03 - 04 psi 03 - 04 psi 03 - 03 ps
150 HP 15 in BB BB 37 - 55 psi 39 - 58 psi 10 - 47 psi 09 - 50 psi 09 - 50 psi 09 - 50 ps
150 HP 15 in PC PC 38 - 57 psi 40 - 60 psi 11 - 42 psi 11 - 50 psi 10 - 50 psi 10 - 50 ps
150 HP 20 in BB BB 34 - 37 psi 36 - 39 psi 07 - 10 psi 06 - 09 psi 06 - 09 psi 06 - 09 ps
150 HP 20 in PC PC 34 - 38 psi 36 - 40 psi 07 - 11 psi 07 - 11 psi 07 - 10 psi 06 - 10 ps
150 HP 25 in PC PC 32 - 34 psi 34 - 36 psi 05 - 07 psi 04 - 06 psi 04 - 06 psi 04 - 06 ps
150 HP 30 in PC PC 32 - 32 psi 34 - 34 psi 04 - 05 psi 04 - 04 psi 04 - 04 psi 03 - 04 ps
150 HP 40 in PC PC 31 - 32 psi 33 - 34 psi 04 - 04 psi 03 - 04 psi 03 - 04 psi 03 - 03 ps
200 HP 15 in BB BB 46 - 69 psi 50 - 75 psi 16 - 50 psi 15 - 50 psi 15 - 50 ps
200 HP 15 in PC PC 48 - 72 psi 52 - 78 psi 18 - 50 psi 17 - 50 psi 17 - 50 ps
200 HP 20 in BB BB 41 - 46 psi 45 - 50 psi 10 - 16 psi 10 - 15 psi 10 - 15 ps
200 HP 20 in PC PC 41 - 48 psi 45 - 52 psi 11 - 18 psi 11 - 17 psi 10 - 17 ps
200 HP 25 in PC PC 38 - 41 psi 42 - 45 psi 07 - 10 psi 07 - 10 psi 06 - 10 ps
200 HP 30 in PC PC 36 - 38 psi 40 - 42 psi 06 - 07 psi 05 - 07 psi 05 - 06 ps
200 HP 40 in PC PC 36 - 36 psi 40 - 40 psi 05 - 06 psi 05 - 05 psi 04 - 05 ps
250 HP 15 in BB BB 41 - 62 psi 44 - 67 psi 24 - 50 psi 24 - 27 psi 24 - 26 psi 23 - 26 ps
250 HP 15 in PC PC 45 - 67 psi 48 - 72 psi 28 - 50 psi 27 - 28 psi 27 - 27 psi 27 - 27 ps
250 HP 20 in BB BB 33 - 38 psi 37 - 41 psi 16 - 24 psi 16 - 24 psi 16 - 24 psi 15 - 23 ps
250 HP 20 in PC PC 34 - 40 psi 37 - 43 psi 17 - 28 psi 17 - 27 psi 16 - 27 psi 16 - 27 ps
250 HP 25 in PC PC 29 - 33 psi 32 - 37 psi 11 - 16 psi 11 - 16 psi 11 - 16 psi 10 - 15 ps
250 HP 30 in PC PC 27 - 29 psi 31 - 32 psi 09 - 11 psi 09 - 11 psi 09 - 11 psi 09 - 10 ps
250 HP 40 in PC PC 26 - 27 psi 29 - 31 psi 08 - 09 psi 08 - 09 psi 08 - 09 psi 08 - 09 ps
300 HP 15 in - 20 in BB BB 55 - 83 psi 57 - 85 psi 30 - 50 psi 30 - 36 psi 30 - 35 psi 30 - 35 ps
300 HP 15 in - 20 in PC PC 58 - 87 psi 60 - 90 psi 33 - 50 psi 33 - 37 psi 33 - 36 psi 33 - 36 ps
300 HP 20 in BB BB 46 - 55 psi 47 - 57 psi 21 - 30 psi 21 - 30 psi 20 - 30 psi 20 - 30 ps
300 HP 20 in PC PC 47 - 58 psi 48 - 60 psi 22 - 33 psi 22 - 33 psi 21 - 33 psi 21 - 33 ps
300 HP 30 in PC PC 39 - 46 psi 40 - 47 psi 13 - 21 psi 13 - 21 psi 12 - 20 psi 12 - 20 ps
300 HP 40 in PC PC 37 - 39 psi 39 - 40 psi 11 - 13 psi 11 - 13 psi 10 - 12 psi 10 - 12 ps
350 HP 15 in - 20 in BB BB 64 - 90 psi 62 - 90 psi 42 - 50 psi 42 - 50 psi 41 - 50 psi 41 - 50 ps
350 HP 15 in - 20 in PC PC 68 - 90 psi 66 - 90 psi 46 - 50 psi 46 - 50 psi 45 - 50 psi 45 - 50 ps
350 HP 20 in BB BB 54 - 64 psi 53 - 62 psi 32 - 42 psi 32 - 42 psi 32 - 41 psi 31 - 41 ps
350 HP 20 in PC PC 56 - 68 psi 54 - 66 psi 34 - 46 psi 34 - 46 psi 33 - 45 psi 33 - 45 ps
350 HP 25 in PC PC 43 - 54 psi 42 - 53 psi 21 - 32 psi 21 - 32 psi 20 - 32 psi 20 - 31 ps
350 HP 30 in PC PC 40 - 43 psi 38 - 42 psi 17 - 21 psi 17 - 21 psi 17 - 20 psi 16 - 20 ps
350 HP 40 in PC PC 37 - 40 psi 36 - 38 psi 15 - 17 psi 15 - 17 psi 14 - 17 psi 14 - 16 ps
400 HP 15 in - 20 in BB BB 69 - 90 psi 69 - 90 psi 46 - 50 psi 46 - 50 psi 45 - 50 psi 45 - 50 ps
400 HP 15 in - 20 in PC PC 74 - 90 psi 75 - 90 psi 51 - 87 psi 51 - 77 psi 51 - 77 psi 51 - 77 ps
400 HP 20 in BB BB 55 - 69 psi 56 - 69 psi 32 - 46 psi 32 - 46 psi 32 - 45 psi 32 - 45 ps
400 HP 20 in PC PC 57 - 74 psi 58 - 75 psi 34 - 50 psi 34 - 50 psi 34 - 50 psi 34 - 50 ps
400 HP 25 in PC PC 41 - 55 psi 42 - 56 psi 18 - 32 psi 18 - 32 psi 18 - 32 psi 18 - 32 ps
400 HP 30 in PC PC 37 - 41 psi 38 - 42 psi 13 - 18 psi 13 - 18 psi 13 - 18 psi 13 - 18 ps
400 HP 40 in PC PC 34 - 37 psi 35 - 38 psi 11 - 13 psi 10 - 13 psi 10 - 13 psi 10 - 13 ps
500 HP 20 in - 25 in BB PC 58 - 76 psi 58 - 76 psi 46 - 50 psi 46 - 50 psi 45 - 50 psi 45 - 50 ps
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Model CBLE 125-800 HP Boilers
31
BB = Butter Ball PC = Plug Cock
NOTE In cases where the gas train increases in size after the regulating valve two diameters are listed The first number is the customer connection size
500 HP 20 in - 25 in PC PC 60 - 83 psi 60 - 83 psi 48 - 50 psi 47 - 50 psi 47 - 50 psi 47 - 50 psi
500 HP 25 in PC PC 39 - 58 psi 39 - 58 psi 27 - 46 psi 27 - 46 psi 27 - 45 psi 26 - 45 psi
500 HP 30 in PC PC 33 - 39 psi 33 - 39 psi 20 - 27 psi 20 - 27 psi 20 - 27 psi 20 - 26 psi
500 HP 40 in PC PC 28 - 33 psi 28 - 33 psi 16 - 20 psi 16 - 20 psi 15 - 20 psi 15 - 20 psi
600 HP 20 in - 25 in BB PC 80 - 90 psi 80 - 90 psi 65 - 90 psi 65 - 90 psi 64 - 89 psi 63 - 88 psi
600 HP 20 in - 25 in PC PC 82 - 90 psi 82 - 90 psi 67 - 100 psi 67 - 100 psi 66 - 99 psi 66 - 99 psi
600 HP 25 in PC PC 54 - 80 psi 54 - 80 psi 39 - 50 psi 38 - 50 psi 38 - 50 psi 37 - 50 psi
600 HP 25 in - 30 in PC PC 52 - 54 psi 52 - 54 psi 37 - 39 psi 36 - 38 psi 35 - 38 psi 35 - 37 psi
600 HP 30 in PC PC 43 - 52 psi 43 - 52 psi 28 - 37 psi 27 - 36 psi 27 - 35 psi 26 - 35 psi
600 HP 40 in PC PC 37 - 43 psi 37 - 43 psi 22 - 28 psi 21 - 27 psi 20 - 27 psi 20 - 26 psi
700 HP 20 in - 30 in BB PC 110 - 150 psi 107 - 150 psi 87 - 131 psi 86 - 130 psi 86 - 129 psi 86 - 128 psi
700 HP 20 in - 30 in PC PC 113 - 150 psi 110 - 150 psi 90 - 135 psi 89 - 134 psi 89 - 134 psi 89 - 133 psi
700 HP 25 in - 30 in PC PC 71 - 90 psi 68 - 90 psi 48 - 50 psi 47 - 50 psi 47 - 50 psi 46 - 50 psi
700 HP 30 in PC PC 60 - 71 psi 57 - 68 psi 36 - 48 psi 36 - 47 psi 35 - 47 psi 35 - 46 psi
700 HP 40 in PC PC 51 - 60 psi 48 - 57 psi 28 - 36 psi 27 - 36 psi 27 - 35 psi 26 - 35 psi
800 HP 20 in - 30 in BB PC 108 - 150 psi 107 - 150 psi 106 - 150 psi
800 HP 20 in - 30 in PC PC 112 - 150 psi 111 - 150 psi 110 - 150 psi800 HP 25 in - 30 in PC PC 61 - 90 psi 60 - 100 psi 59 - 100 psi
800 HP 30 in PC PC 48 - 61 psi 47 - 50 psi 46 - 50 psi
800 HP 40 in PC PC 35 - 48 psi 34 - 47 psi 34 - 46 psi
Standard Gas Train size is highlighted
Table A1-21 Standard Undersize and Oversize Gas Trains (Continued)
CBLE
BOILER HP GAS TRAINSIZE
UPSTREAMVALVE
DOWNSTREAMVALVE
EMISSIONS LEVEL 09 ppm 15 ppm 20 ppm 30 ppm 60 ppm UC
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
32
ALTITUDE(FT)
CORRECTIONFACTOR
ALTITUDE(FT)
CORRECTIONFACTOR
1000 104 6000 1252000 107 7000 130
3000 111 8000 135
4000 116 9000 140
5000 121 - -
To obtain minimum required gas pressure at altitudesabove 700 feet multiply the pressure by the listed factorsInches WC x 0577 = ozsq-inOzsq-in x 1732 = Inches WCInches WC x 00361= psigOzsq-in x 00625 = psigPsig x 2771 = Inches WCPsig x 160 = Ozsq-in
Table A1-22 Minimum Required Regulated Gas Pressure
Altitude Conversion
BOILERHP
TYPE OF GAS AND HEAT CONTENT
NATURAL GAS1000 (Btucu-ft)
PROPANE GAS2550 (Btucu-ft)
125 5103 2000
150 6124 2402
200 8165 3202
250 10206 4002
300 12247 4802
350 14280 5600
400 16329 6404
500 20415 8006
600 24494 9605
700 28576 11206
800 32659 12807
Table A1-23 Maximum Gas Consumption (CFH)
for Natural Gas and Propane Vapor
BOILER
HP
MODEL CB
CONNECTION SIZE
(IN NPT)
LOCATIONDIMENSION
ldquoArdquo (IN)
125-200 1-12 52
250-350 2 56
400 2 58
500 2-12 60
600 2-12 - 3 71
700-800 3 65
Figure A1-13 Standard Gas Train Connection Size and Location
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
33
Oil-Fired Burners Fuel oil consumption information is shown on the boiler rating sheets in theDimensions and Rating Section
Figure A1-16 shows the oil connection sizes and locations for Model CB Boilersfiring No 2 oil
Figure A1-17 through Figure A1-18 show typical oil systems and layouts
Figure A1-19 and Figure A1-20 show the detail of an oil transfer tank (day tank)typically utilized to provide a storage reservoir between the oil system supply pumpand the boiler oil pump
General BoilerInformation
Table A1-24 shows blowdown tank sizing information
Table A1-25 provides heating surface information
Table A1-26 provides steam volume and disengaging area information
Table A1-27 provides recommended steam nozzle sizes
Table A1-28 provides recommended non-return valve sizes
Boiler RoomInformation
Figure A1-21 shows typical boiler room length requirements
Figure A1-22 shows typical boiler room width requirements
Figure A1-23 shows typical breeching arrangements
Stack SupportCapabilities
All standard Cleaver-Brooks Firetube Boilers with an LE option can support up to2000 lbs without additional support
LE Boilers 250 hp through 800 hp can be reinforced to support 3000 lbs
StackBreechingSize Criteria
The design of the stack and breeching must provide the required draft at each boilerflue gas outlet Proper draft is critical to burner performance
Although constant pressure at the flue gas outlet of the Model CB-LE is not requiredit is necessary to size the stackbreeching to limit flue gas pressure variation Theallowable pressure range is ndash025 WC to +025 WC
For additional information please review Section I4 General Engineering Data(Stacks) and Section F Stacks Stack and breeching sizes should always be providedby a reputable stack supplier who will design the stack and breeching system basedon the above criteria Your local Cleaver-Brooks authorized representative is capableof assisting in your evaluation of the stackbreeching design
Boiler RoomCombustion Air
When determining boiler room air requirements the size of the room air flow andvelocity of air must be reviewed as follows
1 Size (area) and location of air supply openings in boiler room
A Two (2) permanent air supply openings in the outer walls of the boiler room
are recommended Locate (1) at each end of the boiler room preferablybelow a height of 7 feet This allows air to sweep the length of the boiler
B Air supply openings can be louvered for weather protection but they shouldnot be covered with fine mesh wire as this type of covering has poor air flowqualities and is subject to clogging by dust or dirt
C A vent fan in the boiler room is not recommended as it could create a slightvacuum under certain conditions and cause variations in the quantity ofcombustion air This can result in unsatisfactory burner performance
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
34
D Under no condition should the total area of the air supply openings be lessthan (1) square foot
E Size the openings by using the formulaArea (sq-ft) = CFMFPM
2 Amount of air required (cfm)
A Combustion Air = Rated bhp x 8 cfmbhp
B Ventilation Air = Maximum bhp x 2 cfmbhp
C Total recommended air = 10 cfmbhp - up to 1000 feet elevation Add 3percent more per 1000 feet of added elevation
3 Acceptable air velocity in Boiler Room (fpm)
A From floor to (7) foot height - 250 fpm
B Above (7) foot height - 500 fpm
Example Determine the area of the boiler room air supply openings for (1) 300 hpboiler at 800 feet altitude The air openings are to be 5 feet above floor level
bull Air required 300 x 10 = 3000 cfm (from 2B above)
bull Air velocity Up to 7 feet = 250 fpm (from 3 above)
bull Area Required Area = cfm = 3000250 = 12 sq-ft total
bull AreaOpening 122 = 6 sq-ftopening (2 required)
Notice
Consult local codes which may supersede these requirements
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 3543
Model CBLE 125-800 HP Boilers
35
This figure illustrates the basic gas valve arrangement on Cleaver-BrooksModel CB boiler and shows the contractors connection point The valves andcontrols between the contractor connection point and the gas main in thestreet are representative of a typical installation Actual requirements mayvary depending on local codes or local gas company requirements which
should be investigated prior to preparation of specifications and prior to con-struction
A Utilities service valveB Utilities service regulatorC Gas meterD Piping from meter to boiler
The size of the gas line from the meter to the gas pressure regulator at theboiler can be very important if gas pressures are marginal The gas line sizingis dependent on
1 Gas pressure at outlet of gas meter (C)2 Rate of gas flow required CFH3 Length of pipe run (D)4 Pressure required at contractor connection point
The local gas utility will advise the pressure that is available at the outlet oftheir meter
Figure A1-14 Typical Gas Piping Layout
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
36
5
6
S
1
3
42
PILOT GAS LINE
S
S
MAIN GAS LINE
M M
ToBurner
GasSupply
11
10
97
12138
14 15
FLOW
FLOW
Figure A1-15 Model CB-LE Gas Train Components
BOILER
HP
MODEL CB
SUPPLYANDRE-
TURNCONN SIZES
(IN)(NPT)
A(IN)
RECOMMENDED OIL LINEA
SIZES(STANDARD PIPE)
(IN - IPS)
STOR-AGE
TANK TOBOILER
OR PUMPCONNECT
PUMPTO
BOILER
RE-TURN
LINE TOTANK
125150 200
34 12-12 1 1 1
250300350
34 34 1 1 1
400500600
34 11-34 1 1 1
700800
1 11-34 1 1 1
NOTE See No 2 Oil Line Sizing Instruction for systems with other conditions A For suction line condition with a maximum of 10 Feet of lift and a
total of 100 feet of suction line
Figure A1-16 No2 Oil Connection Size Location and Recommended Line Sizes
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
37
Figure A1-17 No 2 Oil Piping Single Boiler
Installation Remote Oil Pump
Figure A1-18 No 2 Oil Piping Multiple Boiler
Installation Remote Oil Pumps
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
38
Figure A1-19 No 2 Oil Piping Multiple Boiler
Installation
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 3943
Model CBLE 125-800 HP Boilers
39
Figure A1-20 No 2 Oil Piping Typical Arrangement
Table A1-24 Model CB-LE Blowdown
Tank Sizing
BOILER HP WATER (GAL)
125 97
150 118
200 145
250 146
300 176
350 210
400 177
500 209
600 250
700 800 296
NOTE Quantity of water removed from boiler by lowering normal water line 4
BOILER
HP
HEATING SURFACE (SQ-FT)
FIRESIDE WATERSIDE
125 625 679
150 750 820
200 1000 1092
250 1250 1346
300 1500 1623
350 1750 1932
400 2000 2151
500 2500 2691
600 3000 3262
700 800 3500 3810
Table A1-25 Heating Surface Model CB-LE
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
40
BOILER HPSTEAM VOLUME CU-FT
STEAM DISENGAGING AREASQ-IN
HIGH PRESSUREA LOW PRESSUREB HIGH PRESSUREA LOW PRESSUREB
125 254 366 5371 5887
150 307 443 6511 7138
200 377 544 7985 8752
250 492 706 7980 8695
300 595 853 9651 10516
350 709 1017 11507 12538
400 721 979 9793 10593
500 837 1137 11376 12303
600 1015 1378 13787 14911
700-800 1198 1627 16273 17600
NOTE Based on normal water levelA Based on 150 psig design pressureB Based on 15 psig design pressure
Table A1-26 Steam Volume and Disengaging Area
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Model CBLE 125-800 HP Boilers
41
BOILERHP
BOILERCAPACITY(LBSHR)
OPERATING PRESSURES (PSIG)
50 75 100 125 150 175 200 250
100 3450
2-12 2-12 NA NA NA NA NA NA
125 4313 3 2-12 2-12 2-12 NA NA NA NA
150 5175 3 3 2-12 2-12 2-12 2-12 NA NA
200 6900 3 3 3 3 3 2-12 2-12 2-12
250 8625 4 3 3 3 3 3 3 3
300 10350 4 4 4 3 3 3 3 3
350 12025 4 4 4 4 4 3 3 3
400 13800 5 4 4 4 4 4 4 3
500 17210 6 5 5 4 4 4 4 4
600 20700 6 6 5 5 5 4 4 4
700 24150 6 6 6 5 5 5 5 4
800 27600 6 6 6 6 6 5 5 5
NOTE Valve sizes (300 Flanges) given in inchesStandard Non-Return valve selections limited to a maximum 2 to 1 turndown(50 of full load) selections based on typical non-return valve sizing recommen-dations For final valve selection contact your C-B authorized representative Forhigh turndown applications see Boiler Book Section I3 Table I3-3 Indicates pressure drop of less than 75 psig All other selections are less than6 psig pressure drop
Boiler HP
OPERATINGPRESSURE
PSIG125 150 200 250 300 350 400 500 600 700 800
15 8 8 10 10 12 12 12 12 12 12 12
30 6 6 8 8 8 10 10 10 12 12 12
40 6 6 6 8 8 8 10 10 10 12 12
50 6 6 6 6 8 8 8 10 10 10 12
75 4 4 6 6 6 8 8 8 8 10 10
100 4 4 6 6 6 6 6 8 8 8 10
125 4 4 4 6 6 6 6 8 8 8 8
150 3 3 4 4 6 6 6 6 6 8 8
200 25 3 4 4 4 4 6 6 6 6 6
250 25 3 3 4 4 4 4 6 6 6 6
NOTES1 Steam nozzle sizes given in inches2 Recommended steam nozzle sizes based on 4000 to 5000 fpm steam velocity3 All standard steam nozzle sizes for 150 psig design pressure or greater are the sameas 125 psig operating pressure on the above table To increase or decrease the standardsize request the change with your local Cleaver-Brooks authorized representative4 Shaded area denotes special surge load baffles must be installed to avoid possible wa-ter carry-over5 For incremental operating pressures see Table I3-1 Steam Systems Fundamentals
Table A1-28 Recommended Steam Nozzle Size (for
4000 to 5000 fpm nozzle velocity)
Table A1-29 Recommended Non-Return Valve Size
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
42
1 Shortest boiler room length (Dwg A) is obtained by allowing for possible future tube replacement (from front or rearof boiler) through a window or doorway Allowance is only made for minimum door swing at each end of the boilerThis arrangement provides sufficient aisle space at the front of the boiler but a ldquotightrdquo space condition at the rear
If space permits approximately 15 additional feet should be allowed at the rear for additional aisle and workingspace
2 Next shortest boiler room length (Dwg B) is obtained by allowing for possible future tube replacement from thefront of the boiler Allowance is only made for minimum door swing at the rear
If space permits approximately 15 additional feet should be allowed at the rear for additional aisle and workingspace
3 A slightly longer boiler room (Dwg C) is obtained by allowing for possible future tube replacement from the rear ofthe boiler Allowance for door swing at the front provides sufficient aisle and working space at the front
Figure A1-21 Boiler Room Length (Typical Layouts)
BOILER HP 125-200 250-350 400-800
Dimension A 82 93 102
Dimension B 115 141 171
NOTES1 Recommended Minimum Distance Between Boiler and Wall Dimen-
sion ldquoArdquo allows for a ldquoclearrdquo 42 aisle between the water col-umn on the boiler and the wall If space permits this aisle
should be widened 2 Recommended Minimum Distance Between BoilersDimension ldquoBrdquo between boilers allows for a ldquoclearrdquo aisle of42 - 125 -200 hp48 - 250-350 hp60 - 400-800 hpIf space permits this aisle should be widened
Figure A1-22 Boiler Room Width (Typical Layout)
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 1043
Model CBLE 125-800 HP Boilers
10
A
BC
D
E
F
G
HI J
K
AA
BB CC
DD
EE
FF
JJ
GG
HH HH
L
M
N
O
P Q
R S
T
UV
W
X
Y
JJ
JJ
KK
GGGG
Y
FARSIDE
Table A1-5 Model CB-LE Steam Boiler Dimensions
96rdquo (15 - 150 psig Design Pressure) - Sheet 1 of 2
(measurements shown in inches)
Description DIMBoiler HP
400 500 600 700 800
LENGTHS
Length Overall A 20575 22775 25975 29875 29875
Shell B 14675 1675 19975 23275 23275
Front Head Extension C 27 28 28 34 34
Front Ring Flange to Nozzle - 15 D 98 101 96 112 112
Front Ring Flange to Nozzle - 150 D 96 100 96 112 112
Rear Head Extension E 32 32 32 32 32
Front Ring Flange to Panel G 26 26 26 26 26
Ring Flange to Base H 05 05 05 05 05
Base Frame I 13375 15475 18675 21975 21975
Rear Flange Ring to Base J 125 125 125 125 125
Figure A1-3 CB-LE Steam - 400-800 HP
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 1143
Model CBLE 125-800 HP Boilers
11
Description DIM Boiler HP
400 500 600 700 800
HEIGHTS
Ht Overall K 134 134 134 134 134Base to Vent Outlet L 126 126 126 126 126
Base to Boiler Centerline M 67 67 67 67 67
Base to Gas Train N 12 12 12 12 12
Base to Panel Top T 75 75 75 75 75
Base to Panel Bottom U 15 15 15 15 15
Height of Base V 12 12 12 12 12
Base to Steam Nozzle Y 1215 1235 1215 121 121
WIDTHS
Width Overall O 124 12425 124 124 124
Center to ALWCO P 575 575 575 575 575
Center to Outside Control Panel Q 665 665 665 665 665
Center to Lagging R 51 51 51 51 51
Center to WC S 63 63 63 63 63
Base Inside W 5888 5888 5888 5888 5888
Base Outside X 7188 7188 7188 7188 7188
Boiler ID F 96 96 96 96 96
CONNECTIONS
Electric - Main Power Supply AA 460 3 60 460 3 60 460 3 60 460 3 60 460 3 60
Surface Blowoff (with collector pipe) BB 1 1 1 1 1
Steam Outlet 15 (150 Flange) CC 12 12 12 12 12
Steam Outlet 150 (300 Flange) CC 6 8 8 8 8
Chemical Feed FF 1 1 1 1 1
Feed Water (2) GG 25 25 25 25 25
BlowdownDrain (2) HH 2 2 2 2 2
Water Column Blowdown JJ 075 075 075 075 075
Gauge Glass Blowdown KK 025 025 025 025 025
VENT STACK
Diameter (OD) (flgd connection) 24 24 24 24 24
CLEARANCES
Rear Door Swing 53 53 53 53 53Front Door Swing 108 108 108 108 108Tube Removal Rear 131 152 184 217 217
Tube Removal Front 114 135 167 200 200
MINIMUM BOILER ROOM LENGTH ALLOWING FOR DOOR SWING AND TUBE REMOVAL
From Rear of Boiler 386 428 492 558 558
From Front of Boiler 314 356 420 486 486
Through Window or Doorway 308 329 361 394 394
WEIGHT IN LBS
Normal Water Capacity 14810 15950 19270 23000 23000
Approx Ship Wt 15 psig 33500 37110 42300 49500 49600 Approx Ship Wt 150 psig 36570 39970 45025 52050 52150
Approx Ship Wt 200 psig 39680 43580 49400 57315 57415
Table A1-5 Model CB-LE Steam Boiler Dimensions
96rdquo (15 - 150 psig Design Pressure) - Sheet 2 of 2
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 1243
Model CBLE 125-800 HP Boilers
12
BOILER HP DIM 125 150 200
LENGTHS
Overall (60 ppm System) A 171-12 196-12 228-12
Shell B 125 149 180
Base Frame C 112 136 167
Front Head Extension (60 ppm System) D 27 28 29
Rear Head Extension E 19-12 19-12 19-12
Front Ring Flange to Outlet HH 114 136 167
Front Ring Flange to Return H 89 102 131
Ring Flange to Base F 12 12 12
Over Tubesheets V 113 137 168
Shell Extension P 12 12 12
Rear Flange Ring to Base G 12-12 12-12 12-12
Table A1-6 Model CB-LE Hot Water Boiler Dimensions
60rdquo (30 and 125 psig Design Pressure) - Sheet 1 of 2
Figure A1-4 CB-LE Hot Water - 125-200 HP
R
F G
WW
P
BB
D E
GG
Q
Z
Y T U
RR - RF - RD
X
HH
A
B
HI
L K
OO O
KK
M
N
EE
FF
DD
V
J
C
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 1343
Model CBLE 125-800 HP Boilers
13
BOILER HP DIM 125 150 200
WIDTHS
Overall I 75-12 75-12 75-12
ID Boiler J 60 60 60
Center to Entrance Box K 42-12 42-12 42-12
Center to Outside Hinge KK 35 35 35
Center to Lagging L 33 33 33
Base Outside M 52-12 52-12 52-12
Base Inside N 44-12 44-12 44-12
HEIGHTS
Overall OO 87 87 87
Base to Vent Outlet O 87 87 87
Base to Return and Outlet X 82-38 82-38 82-38
Height of Base Q 12 12 12
Base to Bottom of Boiler R 16 16 16
BOILER CONNECTION
Auxiliary Connection Z 1 1 1
Water Return Flange T 6A 6A 6A
Water Outlet Flange (2 Dip Tube Included) U 6A 6A 6A
Drain Front and Rear W 1-12 1-12 2
Air Vent Y 1-12 1-12 1-12
VENT STACK
Diameter (flgd connection) BB 16 16 16
MINIMUM CLEARANCES
Rear Door Swing DD 32 32 32
Front Door Swing EE 67 67 67
Tube Removal Rear FF 115 139 170Tube Removal Front GG 103 127 158
MINIMUM BOILER ROOM LENGTH ALLOWING FOR DOOR SWING AND TUBE REMOVAL FROM
Rear of Boiler RR 307 355 417
Front of Boiler RF 260 308 370
Thru Window or Doorway RD 224 248 279
WEIGHT IN LBS
Water Capacity Flooded 7670 9295 11130
Approx Ship Wgt ndash 30 psigApprox Ship Wgt ndash 125 psig
1140011800
1250012900
1450014900
NOTES All connections are threaded unless indicatedA ANSI 150 psig flange
Table A1-6 Model CB-LE Hot Water Boiler Dimensions
60rdquo (30 and 125 psig Design Pressure) - Sheet 2 of 2
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 1443
Model CBLE 125-800 HP Boilers
14
BOILER HP DIM 250 300 350
LENGTHS
Overall (60 ppm System) A 191-12 220 252
Shell B 144 171 201
Base Frame C 131 158 188
Front Head Extension (60 ppm System) D 23-12 25 27
Rear Head Extension E 24 24 24
Front Ring Flange to Return H 103-12 130 160
Front Ring Flange to Outlet HH 131 158 188
Ring Flange to Base F 12 12 12
Over Tubesheets V 129 156 186
Shell Extension P 15 15 15
Rear Flange Ring to Base G 12-12 12-12 12-12
Table A1-7 Model CB-LE Hot Water Boiler Dimensions78rdquo (30 and 125 psig Design Pressure) - Sheet 1 of 2
Figure A1-5 CB-LE Hot Water 250-350 HP
s k o o r B r e v a
e l C
R
F G
WW
P
BB
D E
GG
Q
Z
Y T U
RR - RF - RD
X
HH
A
B
HI
L K
OOO
KK
M
N
EE
FF
DD
V
J
C
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 1543
Model CBLE 125-800 HP Boilers
15
BOILER HP DIM 250 300 350
WIDTHS
Overall I 93 93 93
ID Boiler J 78 78 78
Center to Entrance Box K 51 51 51
Center to Outside Hinge KK 51 51 51
Center to Lagging L 42 42 42
Base Outside M 64 64 64
Base Inside N 52 52 52
HEIGHTS
Overall OO 115 115 115
Base to Vent Outlet O 106 106 106
Base to Return and Outlet X 101-12 101-12 101-12
Height of Base Q 10 10 10
Base to Bottom of Boiler R 17 17 17
BOILER CONNECTION
Auxiliary Connection Z 1-14 1-14 1-14
Water Return Flange (2 Dip Tube included) T 8A 8A 8A
Water Outlet Flange (2 Dip Tube Included) U 8A 8A 8A
Air Vent Y 1-12 1-12 1-12
Drain Front and Rear W 2 2 2
VENT STACK
Diameter (flgd connection) BB 20 20 20
MINIMUM CLEARANCES
Rear Door Swing DD 43 43 43
Front Door Swing EE 89 89 89
Tube Removal Rear FF 131 157 187
Tube Removal Front GG 116 142 172
MINIMUM BOILER ROOM LENGTH ALLOWING FOR DOOR SWING AND TUBE REMOVAL FROM
Rear of Boiler RR 364 417 477
Front of Boiler RF 303 356 416
Thru Window or Doorway RD 275 302 332
WEIGHT IN LBS
Water Capacity Flooded 13880 16840 20090
Approx Ship Wgt ndash 30 psigApprox Ship Wgt ndash 125 psig
2140022200
2350024300
2670027500
NOTES All connections are threaded unless indictedA ANSI 150 psig flange
Table A1-7 Model CB-LE Hot Water Boiler Dimensions
78rdquo (30 and 125 psig Design Pressure) - Sheet 2 of 2
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 1643
Model CBLE 125-800 HP Boilers
16
BOILER HP DIM 400 500 600 700 800
LENGTHS
Overall (60 ppm System) A 206 228 262 299 300
Shell B 147 168 200 233 233
Base Frame C 134 155 187 220 220
Front Head Extension (60 ppm System) D 27 28 30 34 35
Rear Head Extension E 32 32 32 32 32
Shell Ring Flange to Base F 12 12 12 12 12
Rear Ring Flange to Base G 12-12 12-12 12-12 12-12 12-12
Shell Flange to Outlet HH 139-12 156-12 182-12 216-12 216-12
Shell Flange to Return H 107 125 151-12 185 185
Over Tubesheets V 130 151 183 216 216
Shell Extension P 17 17 17 17 17
Table A1-8 Model CB-LE Hot Water Boiler Dimensions96rdquo (30 and 125 psig Design Pressure) - Sheet 1 of 2
Figure A1-6 CB-LE Hot Water 400-800 HP
s k o o r B r e v a
e l C
R
F G
WW
P
BB
D E
GG
Q
Z
Y T U
RR - RF - RD
X
HH
A
B
HI
L K
OOO
KK
M
N
EE
FF
DD
V
J
C
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 1743
Model CBLE 125-800 HP Boilers
17
WIDTHS
Overall I 113 113 113 113 115
ID Boiler J 96 96 96 96 96
Center to Entrance Box K 62 62 62 62 64
Center to Outside Hinge KK 62 62 62 62 62
Center to Lagging L 51 51 51 51 51
Base Outside M 72 72 72 72 72
Base Inside N 56 56 56 56 56
HEIGHTS
Overall OO 134 134 134 134 134
Base to Vent Outlet O 126 126 126 126 126
Height of Base Q 12 12 12 12 12
Base to Bottom of Boiler R 19 19 19 19 19
Base to Return and Outlet X 121-916 121-916 121-916 121-916 121-916
BOILER CONNECTIONS
Auxiliary Connection Z 1-14 1-14 1-14 1-14 1-14
Drain Front and Rear W 2 2 2 2 2
Water Return T 10A 10A 12A 12A 12A
Water Outlet (2rdquo Dip Tube Included) U 10A 10A 12A 12A 12A
Air Vent Y 2 2 2 2 2
VENT STACK
Diameter (Flanged Connection) BB 24 24 24 24 24
MINIMUM CLEARANCES
Rear Door Swing DD 53 53 53 53 53
Front Door Swing EE 108 108 108 108 108
Tube Removal Rear FF 131 152 184 217 217
Tube Removal Front GG 114 135 167 200 200
MINIMUM BOILER ROOM LENGTH ALLOWING FOR DOOR SWING AND TUBE REMOVAL FROM
Rear of Boiler RR 386 428 492 558 558
Front of Boiler RF 314 356 420 486 486
Thru Window or Doorway RD 308 329 361 394 394
WEIGHT IN LBS
Normal Water Capacity 20015 23300 28260 33360 33360
Approx Ship Wgt ndash 30 psig
Approx Ship Wgt ndash 125 psig
33300
37270
36900
40780
42150
46005
49650
53300
49750
53400
NOTES All connections are threaded unless indicated
A ANSI 150 psig flange
BOILER HP DIM 400 500 600 700 800
Table A1-8 Model CB-LE Hot Water Boiler Dimensions
96rdquo (30 and 125 psig Design Pressure) - Sheet 2 of 2
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 1843
Model CBLE 125-800 HP Boilers
18
BOILER HP
MOTOR HP
60PPM
30PPM
25PPM
20PPM
125 5 10 5 10
150 75 10 10 10
200 15 15 20 NA
250 75 10 15 15
300 10 15 20 30
350 15 25 40 40
400 10 15 20 20
500 15 20 25 30
600 25 30 50 60
700 30 50 75 75
800 50 75 NA NA
NOTES For elevations above 700rsquo - contact your local
Cleaver-Brooks authorized representative
Table A1-9 Model CB-LE Blower Motor Selection -
Operating Pressures 150 psig and Less and All Hot
Water Boilers
BOILER HP
MOTOR HP
60
PPM
30
PPM
25
PPM
20
PPM
125 5 10 10 10
150 10 10 10 15
200 15 20 20 NA
250 75 10 15 20
300 10 20 30 40
350 20 30 40 50
400 10 15 20 25
500 20 25 30 40
600 25 40 60 60
700 40 60 75B 75C
800 60 75A NA NA
NOTES For elevation above 700rsquo - contact your local
Cleaver-Brooks authorized representative
A Downrate to 770 hp
B Downrate to 675 hp
C Downrate to 660 hp
Table A1-10 Model CB-LE Blower Motor Selection -
Operating Pressures Greater than 150 psig (Steam
Boilers)
09-09
Table A1-11 Blower Motor Selection CB-LE NTI BoilersTable A1-12 Turndown Guarantee for CB-LE NTI
Boilers - Natural Gas amp 2 Oil
Boiler SizeTurndown
9 ppm 15 ppm
125 41 41
150 41 51
200 41 51
250 51 51
300 51 51
350 51 51
400 51 61
500 51 61
600 61 61
700 71 71
800 71 71
800 HP to be derated to 720 HP for 9 ppm and 750 HP
for 15 ppm
Altitude 700 ft and less - Design Pressure 150 psi and less
800 HP - to be de-rated to 720 HP for 9 ppm and to 750 HP for 15 ppm
mpp9mpp51Nominal
Boiler Size Blower Motor HP Blower Motor HP
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Model CBLE 125-800 HP Boilers
19
BOILER HPFUEL
SERIES
HOT WATER STEAM
30 PSIG 125 PSIG 15 PSIG 150 PSIG 200 PSIG
125100 11200 11600 11300 12000 12600200 11400 11800 11500 12400 13000
700 11300 11700 11400 12300 12900
150
100 12300 12700 12400 13200 13900
200 12500 12900 12600 13500 14200
700 12300 12700 12400 13300 14000
200
100 14400 14800 14500 15500 16300
200 14500 14900 14600 15600 16400
700 14500 14900 14600 15600 16400
250
100 20700 21500 20800 22000 23800
200 21400 22200 21500 22800 24600
700 20900 21700 21000 22500 24300
300
100 23100 23900 23200 24800 26800
200 23500 24300 23600 25200 27200
700 23400 24200 23500 25000 27000
350
100 26200 27000 26300 27600 29100
200 26700 27500 26800 27800 29300
700 26400 27200 26500 27700 29200
400
100 33000 36970 33200 36270 39380
200 33300 37270 33500 36570 39680
700 33200 37170 33400 36470 39580
500
100 36600 40470 36810 39670 43480
200 36900 40780 37110 39970 43580
700 36800 40680 37010 39870 43280
600
100 41850 45905 42000 44725 49100
200 42150 46005 42300 45025 49400
700 42050 45915 42200 44925 49300
700800
100 49450 53000 49300 51850 57015
200 49750 53300 49600 52150 57315
700 49650 53200 49500 52050 57215
NOTES1 Weights shown are based on standard product offering for current listed boilers If units are of special design and construction actual weightwill be determined at time of shipment Shipment will then be made on shippers weight and count All weights are in US pounds
Table A1-13 Model CB-LE Boiler Weights
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Model CBLE 125-800 HP Boilers
20
VALVE
SETTING15 PSIG STEAM 100 PSIG STEAM 125 PSIG STEAM 150 PSIG STEAM 200 PSIG STEAM 250 PSIG STEAM 300 PSIG STEAM
BOILERHP
NO OF
VALVES-REQD
OUTLET
SIZE(IN)
NO OF
VALVES-REQD
OUTLET
SIZE(IN)
NO OF
VALVESREQD
OUTLET
SIZE(IN)
NO OF
VALVES-REQD
OUTLET
SIZE(IN)
NO OF
VALVES-REQD
OUTLET
SIZE(IN)
NO OF
VALVESREQD
OUTLET
SIZE(IN)
NO OF
VALVESREQD
OUTLET
SIZE(IN)
125 1 3 2 1-12 2(1) 1-12(1) 1-14
2(1) 1-12(1) 1-14
2(1) 1-14(1) 1
2 1 2 1
150 1 3 2(1) 2(1) 1-12
2 1-14 2(1) 1-12(1) 1-14
2(1) 1(1) 1-14
2 1 2 1
200 2 2-12 2 2 2 1-12 2 1-12 2(1) 1-12(1) 1-14
2 1-14 2(1) 1(1) 1-14
250 2(1) 2-12(1) 3
2(1) 2-12(1) 2
2(1)2(1)1-12
2(1) 2(1) 1-12
2(1)1-12(1)1-14
2(1) 1-12(1) 1-14
2 1-14
300 2 3 2(1) 2-12(1) 2
2 2 2(1) 2(1) 1-12
2 1-12 2(1)1-12(1)1-14
2(1) 1-12(1) 1-14
350 3(1) 2(2) 3
3(1) 2-12(2) 2
2(1)2(1)1-12
2 2 2(1) 1-12(1) 2
2 1-12 2(1) 1-12(1) 1-14
400 3(2) 3(1) 2-12
3(1) 2(2) 2-12
2(1)2(1)2-12
2(1) 2-12(1) 2
2(1) 1-12(1) 2
2(1) 2(1) 1-12
2 1-12
500 3 (3) 3 3 2-12 2 2-12 2(1) 2-12(1) 2
2(1) 2(1) 2-12
2(1) 2(1)1-12
2(1) 1-12(1) 2
600 4 3 4(3) 2-12(1) 2
3 2-12 2 2-12 2(1) 2(1) 2-12
2 2 2 2
700 5(3) 3(2) 2-12
5(3) 2-12(2) 2
3 2-12 3(2) 2-12(1) 2
2 2-12 2(1) 2(1) 2-12
2 2
800 5(3) 3(2) 2-12
5(3) 2-12(2) 2
4(3) 2-12(1) 2
3(2) 2-12(1) 2
2 2-12 2(1) 2(1) 2-12
2(1) 2(1) 2-12
NOTES Valve manufacturers are Kunkle Consolidated or Conbraco depending on availability This table revised 042012
Table A1-14 Steam Boiler Safety Valve Openings
VALVE
SETTING 30 PSIG HW 60 PSIG HW 100 PSIG HW 125 PSIG HW
BOILER HPNO OF
VALVESREQD
OUTLETSIZE(IN)
NO OFVALVESREQD
OUTLETSIZE(IN)
NO OFVALVESREQD
OUTLETSIZE(IN)
NO OFVALVESREQD
OUTLETSIZE(IN)
125 1 2-12 1 2 1 2 1 1-14
150 1 2-12 1 2-12 1 2 1 2
200 2(1) 2-12(1) 1-14
1 2-12 1 2 1 2
250 2 (1) 2(1) 2-12
1 2-12 1 2-12 1 2
300 2 2-12 2(1) 1(1) 2-12
1 2-12 1 2-12
350 3(2) 2-12(1) 1
2(1) 2-12(1) 2
1 2-12 1 2-12
400 3 (1) 2(2) 2-12 2 (1) 2(2) 2-12 2 (1) 1(1) 2-12 1 2-12
500 4 (1) 1(3) 2-12
2 2-12 2(1) 2-12(1) 1-14
2(1) 1(1) 2-12
600 4(3) 2-12(1) 2
3(1) 1-1(2) 2-12
2(1) 2(1) 2-12
2(1) 2-12(1) 1-14
700 amp 800 5 (1) 1(4) 2-12
3(1) 2(2) 2-12
2 2-12 2(1) 2-12(1) 2
NOTES Hot water relief valves are Kunkle 537
Table A1-15 Hot Water Boiler Relief Valve Openings
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Model CBLE 125-800 HP Boilers
21
BOILER HP A B C D E F G X1 X2 X3
125 6 9 112 39-12 57-12 4 44-12 10 9-34 22-12
150 6 9 136 39-12 57-12 4 44-12 10 9-34 22-12
200 6 9 167 39-12 57-12 4 44-12 10 9-34 22-12
250 6 12 131 46 70 4 56 10 22 22-12
300 6 12 158 46 70 4 56 10 22 22-12
350 6 12 188 46 70 4 56 10 22 22-12
NOTE
All numbers in table are in inches
6-inch high mounting piers recommended for use beneath the boiler base frame The use of these piers provides increased inspection
accessibility to the piping beneath the boiler and added height for washing down the area beneath the boiler
Figure A1-7 Space Required to Open Rear Head on Model CB-LE Boilers Equipped with Davits
BOILER HPDIMENSIONS (INCHES)
A B C D E
CB-125 THRU CB-200 33 55 45 68 32
CB-250 THRU CB-350 42 69 58 86 43
CB-400 THRU CB-800 51 88 71 109 53
Figure A1-8 Model CB-LE Boiler Mounting Piers (60rdquo and 78rdquo)
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Model CBLE 125-800 HP Boilers
22
BOILER HP A B C D E F G
400 6 14 134 50 78 6-12 58-78
500 6 14 155 50 78 6-12 58-78
600 6 14 187 50 78 6-12 58-78
700-800 6 14 220 50 78 6-12 58-78
NOTE1 All numbers in table are in inches2 6-inch high mounting piers recommended for use beneath the boiler base frame The use of these piers provides in-
creased inspection accessibility to the piping beneath the boiler and added height for washing down the area beneaththe boiler
Figure A1-9 Model CB-LE Boiler Mounting Piers (96rdquo)
CBLE 250-350HP
CBLE 400-800HP
Motor HP Hole Number
75 1
15 1
25 2
40 3
Motor HP Hole Number
10 1
20 1
30 250 2
75 3
Figure A1-10 Front Davit Support
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Model CBLE 125-800 HP Boilers
23
BOILERHP
VIEW
ALL DIMENSIONS IN INCHES
A B C D E
125 All B 80-14 29-34 70-12 10 3
150 All B 80-14 29-34 83-12 10 3
200 All B 80-14 29-34 114-12 10 3
250Steam B 99 36 72 10 3
Hot Water B 99 36 81 10 3
300
Steam B 99 36 99 10 3
Hot Water B 99 36 108 10 3
350Steam B 99 36 129 10 3
Hot Water B 99 36 138 10 3
400Steam B 119 35-34 78 11 3
Hot Water B 119 35-34 78 11 3
500Steam B 119 35-34 99 11 3
Hot Water B 119 35-34 99 11 3
600Steam B 119 35-34 131 11 3
Hot Water B 119 35-34 131 11 3
700 amp 800Steam B 119 35-34 164 11 3
Hot Water B 119 35-34 164 11 3
NOTE A B and C dimensions may vary by 12 inch
Figure A1-11 Lifting Lug Location Model CB-LE Boilers
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Model CBLE 125-800 HP Boilers
24
PERFORMANCE DATA
The Low Emission Option provides NOx reduction at current published andpredicted fuel-to-steam efficiencies
Specifying BoilerEfficiency
Cleaver-Brooks offers an industry leading fuel-to-steam boiler efficiency guaranteefor Model CB-LE Firetube Boilers The guarantee is based on the fuel-to-steam
efficiencies shown in the efficiency tables and the following conditions Theefficiency percent number is only meaningful if the specific conditions of theefficiency calculations are clearly stated in the specification (see Cleaver-Brookspublication CB-7768 for a detailed description of efficiency calculations)
When specifying the efficiencies in the tables be sure to include the specificguarantee conditions to maximize the effectiveness of your efficiency specification Ifyou have any questions regarding the efficiency specifications please contact yourlocal Cleaver-Brooks authorized representative
EfficiencySpecification
The boiler manufacturer shall guarantee that at the time of startup the boiler willachieve fuel-to-steam efficiency (as shown in Table A1-16 and Table A1-17) at100 firing rate (add efficiency guarantees at 25 50 and 75 of rating if
required) If the boiler(s) fail to achieve the corresponding guaranteed efficiency aspublished the boiler manufacturer will rebate to the ultimate boiler owner tenthousand dollars ($10000) for every full efficiency point (10) that the actualefficiency is below the guaranteed level
The specified boiler efficiency is based on the following conditions
1 Fuel specification used to determine boiler efficiency
bull Natural Gas
Carbon (wt) = 6998Hydrogen (wt) = 2231Sulfur (wt) = 00
Heating value Btulb = 21830bull No 2 Oil
Carbon (wt) = 858Hydrogen (wt) = 127Sulfur (wt) = 02Heating value Btulb = 19420
No 6 Oil
Carbon (wt) = 866Hydrogen (wt) = 109Sulfur (wt) = 209Heating value Btulb = 18830
2 Efficiencies are based on ambient air temperature of 80 degF relative humidity of30 and 15 excess air in the exhaust flue gas
3 Efficiencies are based on manufacturerrsquos published radiation and convectionlosses (For Cleaver-Brooks radiation and convection losses see BoilerEfficiency Facts Guide publication number CB-7767)
4 Any efficiency verification testing will be based on the stack loss method
For efficiencies and stack temperatures at operating pressures not listed followthese procedures
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Model CBLE 125-800 HP Boilers
25
When the operating steam pressure is between 10 psig and 125 psig interpolatethe values from the efficiency tables
When the operating steam pressure is above 125 psig estimated efficiency can becalculated as follows
Example
Boiler 350 hpFuel natural gas
Operating steam pressure 200 psig
Find the fuel-to-steam efficiency at 100 firing rate From Table A1-16 for a 350hp boiler operating at 100 firing rate and an operating steam pressure of 125psig the efficiency is 825
Using Figure A1-12 note that the stack temperature increases 36 degF at the higheroperating pressure To estimate boiler efficiency use this rule of thumb For every40 degF increase in stack temperature efficiency decreases by 1 Since the stacktemperature rise is 36 degF the decrease in the boiler efficiency at 200 psig operatingpressure is calculated as follows 3640 =9 Therefore the boiler efficiency at200 psig operating pressure is 825 -9 = 816
Emissions The emission data included in this section consists of typical emission levels forModel CB boilers equipped with 60 30 25 and 20 ppm LE Options when firingnatural gas and No 2 oil
Notice
The data in Table A1-18 and Table A1-19 represent typical emission levels only
Guaranteed emission levels are available from your local Cleaver-Brooks authorized
representative
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Model CBLE 125-800 HP Boilers
26
BOILER
HP
OPERATING PRESSURE = 10 psig OPERATING PRESSURE = 125 psig
OF LOAD OF LOAD
25 50 75 100 25 50 75 100
125 833 836 834 832 804 809 810 810
150 844 846 845 843 815 820 820 821
200 850 853 851 849 822 827 827 827
250 850 847 840 833 820 820 816 813
300 853 853 846 839 826 827 822 819
350 853 857 852 845 826 832 828 825
400 845 847 846 844 818 822 824 822
500 855 857 855 852 828 832 833 831
600 857 860 858 856 829 835 836 835
700 857 862 860 857 830 836 836 836
800 858 861 859 856 831 836 837 835
Table A1-16 Predicted Fuel-to-Steam Efficiencies - Natural Gas
Figure A1-12 Predicted Stack Temperature Increase for Pressure Greater Than 125 psig
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Model CBLE 125-800 HP Boilers
27
Table A1-18 CB-LE Boilers - Natural Gas Emission Levels
POLLUTANT
ESTIMATED LEVEL
60 ppm 30 ppm 25 ppm 20 ppm 15 ppm 9 ppm
CO ppmA
lbMMBtu
50150B
004011
50150B
004011
50150B
004011
50150B
004011
50
004
50
004
NOx ppmA
lbMMBtu
60
007
30
0035
25
003
20
0024
15
0018
9
0011
SOx ppmA
lbMMBtu
1
0001
1
0001
1
0001
1
0001
1
0001
1
0001
HCVOC5 ppmA
lbMMBtu
10
0004
10
0004
10
0004
10
0004
10
0004
10
0004
PM ppmA
lbMMBtu
-
001
-
001
-
001
-
001
-
001
-
001
A ppm levels are given on a dry volume basis and corrected to 3 oxygen (15 excess air)
B CO emission for 60 30 25 amp 20 ppm system is 50 ppm (004 lbMMBtu) when boiler is operating above 50 of rated capacity
CO emission is 150 ppm (011 lbMMBtu) when boiler is operating below 50 of rated capacity
Table A1-17 Predicted Fuel-to-Steam Efficiencies - No 2 Oil
BOILER
HP
OPERATING PRESSURE = 10 psig OPERATING PRESSURE = 125 psig
OF LOAD OF LOAD
25 50 75 100 25 50 75 100
125 867 869 867 866 837 842 843 843
150 878 880 878 876 848 853 853 854
200 884 887 884 882 856 860 860 860
250 883 881 874 867 853 853 849 847
300 886 887 880 873 859 860 855 852
350 886 890 885 878 859 866 861 858
400 879 881 879 876 851 855 856 855
500 889 890 889 886 861 865 866 864
600 890 894 892 890 862 868 869 868
700 891 895 893 891 863 869 870 869
800 892 895 893 890 864 869 870 868
Table A1-19 CB-LE Boilers - No 2 Oil Emission Levels
POLLUTANTESTIMATED LEVEL
60 ppm LE Option 30 25 20 ppm LE Option 15 ppm 9 ppm
CO ppmA
lbMMBtu
50
0039
50
0039
50
0039
50
0039
NOx ppmA
lbMMBtu140
018690
012085
011370
0093
SOx ppmA
lbMMBtu
278
052
278
052
278
052
278
052
HCVOCs ppmA
lbMMBtu
4
0002
4
0002
4
0002
4
0002
PM ppmA
lbMMBtu
-
0025
-
0025
-
0025
-
0025
A ppm levels are given on a dry volume basis and corrected to 3 oxygen (15 excess air)
BASED ON THE FOLLOWING CONSTITUENT LEVELS
Fuel-bound Nitrogen content = 0015 by weight
Sulfur content = 05 by weight
Ash content = 001 by weight
09-09
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Model CBLE 125-800 HP Boilers
28
ENGINEERING DATA
Sound Level Table A1-20 gives a summary of predicted sound pressure levels for Model CBboilers with 30 ppm LE Options Contact your local Cleaver-Brooks authorizedrepresentative for sound levels or other LE Options
Units - The units for the sound level tables are dbA (decibels measured on the A-weighted scale) in reference to 00002 microbars (20 micro-Newtons per square
meter) Their reference are standardly used in specifying and reporting soundpressure levels on industrial equipment
Test Method - The sound pressure levels in the above tables were obtained fromtests in accordance with the ldquoABMA Test Code for the Measurement of Sound fromPackaged Boilersrdquo In accordance with this code the sound pressure levels reportedwere measured on the boiler centerline 4-12 feet vertically above the bottom of thebase rails and 3 feet horizontally in front of the end of the blower motor or frontsurface of the electrical cabinet
Sound Level Meter - The sound level meter used complies with ANSI S14 Type 1(Precision) The readings are taken with the meter set for slow response andcorrected for background levels
Sound Pressure - The large size boilers the need for auxiliary equipment and thenecessary interconnecting piping make it impractical (and sometimes impossible) toprovide a boiler testing environment which is suitable for taking the data needed todevelop Sound Pressure Power levels
Typical Values - Sound pressure levels (dbA) for the same boiler will vary betweenboiler rooms Sound levels will vary with motor type NOx levels and altitudes Inaddition variations will occur between different people using different sound meterson the same boiler And finally no two boilers can be expected to give precisely thesame sound levels For these reasons we can only predict but not guarantee soundlevels (dbA)
BOILER HP 125 150 200 250 300 350 400 500 600 700 800
HFO dbA 84 84 84 83 84 85 84 85 85 88 90
LFO dbA 82 82 83 81 82 83 82 83 83 84 89
HFG dbA 82 82 83 82 83 84 83 83 85 87 90
LFG dbA 81 81 82 81 82 83 81 81 82 84 88
NOTES1 Sound pressure levels measured on boilers operating in various locations and ex-
pressed in dbA are as shown2 Based on standard altitude fans and fan motors 60 Hz3 Contact your local Cleaver-Brooks authorized representative for sound levels of 60 25or 20 ppm LE Options
ABBREVIATIONS
HF = High Fire LF = Low Fire O = Oil G = Gas
Table A1-20 Model CBLE Predicted Sound Levels 30 ppm NOx Systemss
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Model CBLE 125-800 HP Boilers
29
Gas-Fired Burners Table A1-21 shows gas pressure with standard over- and undersized gas trains
Table A1-22 shows minimum required gas pressure altitude conversion
Figure A1-13 shows standard gas train sizes and locations for Model CB FiretubeBoilers
Figure A1-14 shows typical gas train piping layouts for multiple boiler applications
Figure A1-15 shows standard gas train components
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Model CBLE 125-800 HP Boilers
30
Table A1-21 Standard Undersize and Oversize Gas Trains
CBLE
BOILER HP GAS TRAINSIZE
UPSTREAMVALVE
DOWNSTREAMVALVE
EMISSIONS LEVEL 09 ppm 15 ppm 20 ppm 30 ppm 60 ppm UC
125 HP 15 in BB BB 33 - 49 psi 33 - 49 psi 08 - 50 psi 07 - 50 psi 07 - 50 psi 07 - 50 ps
125 HP 15 in PC PC 34 - 50 psi 34 - 50 psi 09 - 50 psi 08 - 50 psi 08 - 50 psi 08 - 50 ps
125 HP 20 in BB BB 31 - 33 psi 31 - 33 psi 06 - 08 psi 06 - 07 psi 05 - 07 psi 05 - 07 ps
125 HP 20 in PC PC 31 - 34 psi 31 - 34 psi 06 - 09 psi 06 - 08 psi 06 - 08 psi 05 - 08 ps
125 HP 25 in PC PC 30 - 31 psi 30 - 31 psi 04 - 06 psi 04 - 06 psi 04 - 05 psi 04 - 05 ps
125 HP 30 in PC PC 29 - 30 psi 29 - 30 psi 04 - 04 psi 04 - 04 psi 04 - 04 psi 03 - 04 ps
125 HP 40 in PC PC 29 - 29 psi 29 - 29 psi 04 - 04 psi 03 - 04 psi 03 - 04 psi 03 - 03 ps
150 HP 15 in BB BB 37 - 55 psi 39 - 58 psi 10 - 47 psi 09 - 50 psi 09 - 50 psi 09 - 50 ps
150 HP 15 in PC PC 38 - 57 psi 40 - 60 psi 11 - 42 psi 11 - 50 psi 10 - 50 psi 10 - 50 ps
150 HP 20 in BB BB 34 - 37 psi 36 - 39 psi 07 - 10 psi 06 - 09 psi 06 - 09 psi 06 - 09 ps
150 HP 20 in PC PC 34 - 38 psi 36 - 40 psi 07 - 11 psi 07 - 11 psi 07 - 10 psi 06 - 10 ps
150 HP 25 in PC PC 32 - 34 psi 34 - 36 psi 05 - 07 psi 04 - 06 psi 04 - 06 psi 04 - 06 ps
150 HP 30 in PC PC 32 - 32 psi 34 - 34 psi 04 - 05 psi 04 - 04 psi 04 - 04 psi 03 - 04 ps
150 HP 40 in PC PC 31 - 32 psi 33 - 34 psi 04 - 04 psi 03 - 04 psi 03 - 04 psi 03 - 03 ps
200 HP 15 in BB BB 46 - 69 psi 50 - 75 psi 16 - 50 psi 15 - 50 psi 15 - 50 ps
200 HP 15 in PC PC 48 - 72 psi 52 - 78 psi 18 - 50 psi 17 - 50 psi 17 - 50 ps
200 HP 20 in BB BB 41 - 46 psi 45 - 50 psi 10 - 16 psi 10 - 15 psi 10 - 15 ps
200 HP 20 in PC PC 41 - 48 psi 45 - 52 psi 11 - 18 psi 11 - 17 psi 10 - 17 ps
200 HP 25 in PC PC 38 - 41 psi 42 - 45 psi 07 - 10 psi 07 - 10 psi 06 - 10 ps
200 HP 30 in PC PC 36 - 38 psi 40 - 42 psi 06 - 07 psi 05 - 07 psi 05 - 06 ps
200 HP 40 in PC PC 36 - 36 psi 40 - 40 psi 05 - 06 psi 05 - 05 psi 04 - 05 ps
250 HP 15 in BB BB 41 - 62 psi 44 - 67 psi 24 - 50 psi 24 - 27 psi 24 - 26 psi 23 - 26 ps
250 HP 15 in PC PC 45 - 67 psi 48 - 72 psi 28 - 50 psi 27 - 28 psi 27 - 27 psi 27 - 27 ps
250 HP 20 in BB BB 33 - 38 psi 37 - 41 psi 16 - 24 psi 16 - 24 psi 16 - 24 psi 15 - 23 ps
250 HP 20 in PC PC 34 - 40 psi 37 - 43 psi 17 - 28 psi 17 - 27 psi 16 - 27 psi 16 - 27 ps
250 HP 25 in PC PC 29 - 33 psi 32 - 37 psi 11 - 16 psi 11 - 16 psi 11 - 16 psi 10 - 15 ps
250 HP 30 in PC PC 27 - 29 psi 31 - 32 psi 09 - 11 psi 09 - 11 psi 09 - 11 psi 09 - 10 ps
250 HP 40 in PC PC 26 - 27 psi 29 - 31 psi 08 - 09 psi 08 - 09 psi 08 - 09 psi 08 - 09 ps
300 HP 15 in - 20 in BB BB 55 - 83 psi 57 - 85 psi 30 - 50 psi 30 - 36 psi 30 - 35 psi 30 - 35 ps
300 HP 15 in - 20 in PC PC 58 - 87 psi 60 - 90 psi 33 - 50 psi 33 - 37 psi 33 - 36 psi 33 - 36 ps
300 HP 20 in BB BB 46 - 55 psi 47 - 57 psi 21 - 30 psi 21 - 30 psi 20 - 30 psi 20 - 30 ps
300 HP 20 in PC PC 47 - 58 psi 48 - 60 psi 22 - 33 psi 22 - 33 psi 21 - 33 psi 21 - 33 ps
300 HP 30 in PC PC 39 - 46 psi 40 - 47 psi 13 - 21 psi 13 - 21 psi 12 - 20 psi 12 - 20 ps
300 HP 40 in PC PC 37 - 39 psi 39 - 40 psi 11 - 13 psi 11 - 13 psi 10 - 12 psi 10 - 12 ps
350 HP 15 in - 20 in BB BB 64 - 90 psi 62 - 90 psi 42 - 50 psi 42 - 50 psi 41 - 50 psi 41 - 50 ps
350 HP 15 in - 20 in PC PC 68 - 90 psi 66 - 90 psi 46 - 50 psi 46 - 50 psi 45 - 50 psi 45 - 50 ps
350 HP 20 in BB BB 54 - 64 psi 53 - 62 psi 32 - 42 psi 32 - 42 psi 32 - 41 psi 31 - 41 ps
350 HP 20 in PC PC 56 - 68 psi 54 - 66 psi 34 - 46 psi 34 - 46 psi 33 - 45 psi 33 - 45 ps
350 HP 25 in PC PC 43 - 54 psi 42 - 53 psi 21 - 32 psi 21 - 32 psi 20 - 32 psi 20 - 31 ps
350 HP 30 in PC PC 40 - 43 psi 38 - 42 psi 17 - 21 psi 17 - 21 psi 17 - 20 psi 16 - 20 ps
350 HP 40 in PC PC 37 - 40 psi 36 - 38 psi 15 - 17 psi 15 - 17 psi 14 - 17 psi 14 - 16 ps
400 HP 15 in - 20 in BB BB 69 - 90 psi 69 - 90 psi 46 - 50 psi 46 - 50 psi 45 - 50 psi 45 - 50 ps
400 HP 15 in - 20 in PC PC 74 - 90 psi 75 - 90 psi 51 - 87 psi 51 - 77 psi 51 - 77 psi 51 - 77 ps
400 HP 20 in BB BB 55 - 69 psi 56 - 69 psi 32 - 46 psi 32 - 46 psi 32 - 45 psi 32 - 45 ps
400 HP 20 in PC PC 57 - 74 psi 58 - 75 psi 34 - 50 psi 34 - 50 psi 34 - 50 psi 34 - 50 ps
400 HP 25 in PC PC 41 - 55 psi 42 - 56 psi 18 - 32 psi 18 - 32 psi 18 - 32 psi 18 - 32 ps
400 HP 30 in PC PC 37 - 41 psi 38 - 42 psi 13 - 18 psi 13 - 18 psi 13 - 18 psi 13 - 18 ps
400 HP 40 in PC PC 34 - 37 psi 35 - 38 psi 11 - 13 psi 10 - 13 psi 10 - 13 psi 10 - 13 ps
500 HP 20 in - 25 in BB PC 58 - 76 psi 58 - 76 psi 46 - 50 psi 46 - 50 psi 45 - 50 psi 45 - 50 ps
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Model CBLE 125-800 HP Boilers
31
BB = Butter Ball PC = Plug Cock
NOTE In cases where the gas train increases in size after the regulating valve two diameters are listed The first number is the customer connection size
500 HP 20 in - 25 in PC PC 60 - 83 psi 60 - 83 psi 48 - 50 psi 47 - 50 psi 47 - 50 psi 47 - 50 psi
500 HP 25 in PC PC 39 - 58 psi 39 - 58 psi 27 - 46 psi 27 - 46 psi 27 - 45 psi 26 - 45 psi
500 HP 30 in PC PC 33 - 39 psi 33 - 39 psi 20 - 27 psi 20 - 27 psi 20 - 27 psi 20 - 26 psi
500 HP 40 in PC PC 28 - 33 psi 28 - 33 psi 16 - 20 psi 16 - 20 psi 15 - 20 psi 15 - 20 psi
600 HP 20 in - 25 in BB PC 80 - 90 psi 80 - 90 psi 65 - 90 psi 65 - 90 psi 64 - 89 psi 63 - 88 psi
600 HP 20 in - 25 in PC PC 82 - 90 psi 82 - 90 psi 67 - 100 psi 67 - 100 psi 66 - 99 psi 66 - 99 psi
600 HP 25 in PC PC 54 - 80 psi 54 - 80 psi 39 - 50 psi 38 - 50 psi 38 - 50 psi 37 - 50 psi
600 HP 25 in - 30 in PC PC 52 - 54 psi 52 - 54 psi 37 - 39 psi 36 - 38 psi 35 - 38 psi 35 - 37 psi
600 HP 30 in PC PC 43 - 52 psi 43 - 52 psi 28 - 37 psi 27 - 36 psi 27 - 35 psi 26 - 35 psi
600 HP 40 in PC PC 37 - 43 psi 37 - 43 psi 22 - 28 psi 21 - 27 psi 20 - 27 psi 20 - 26 psi
700 HP 20 in - 30 in BB PC 110 - 150 psi 107 - 150 psi 87 - 131 psi 86 - 130 psi 86 - 129 psi 86 - 128 psi
700 HP 20 in - 30 in PC PC 113 - 150 psi 110 - 150 psi 90 - 135 psi 89 - 134 psi 89 - 134 psi 89 - 133 psi
700 HP 25 in - 30 in PC PC 71 - 90 psi 68 - 90 psi 48 - 50 psi 47 - 50 psi 47 - 50 psi 46 - 50 psi
700 HP 30 in PC PC 60 - 71 psi 57 - 68 psi 36 - 48 psi 36 - 47 psi 35 - 47 psi 35 - 46 psi
700 HP 40 in PC PC 51 - 60 psi 48 - 57 psi 28 - 36 psi 27 - 36 psi 27 - 35 psi 26 - 35 psi
800 HP 20 in - 30 in BB PC 108 - 150 psi 107 - 150 psi 106 - 150 psi
800 HP 20 in - 30 in PC PC 112 - 150 psi 111 - 150 psi 110 - 150 psi800 HP 25 in - 30 in PC PC 61 - 90 psi 60 - 100 psi 59 - 100 psi
800 HP 30 in PC PC 48 - 61 psi 47 - 50 psi 46 - 50 psi
800 HP 40 in PC PC 35 - 48 psi 34 - 47 psi 34 - 46 psi
Standard Gas Train size is highlighted
Table A1-21 Standard Undersize and Oversize Gas Trains (Continued)
CBLE
BOILER HP GAS TRAINSIZE
UPSTREAMVALVE
DOWNSTREAMVALVE
EMISSIONS LEVEL 09 ppm 15 ppm 20 ppm 30 ppm 60 ppm UC
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 3243
Model CBLE 125-800 HP Boilers
32
ALTITUDE(FT)
CORRECTIONFACTOR
ALTITUDE(FT)
CORRECTIONFACTOR
1000 104 6000 1252000 107 7000 130
3000 111 8000 135
4000 116 9000 140
5000 121 - -
To obtain minimum required gas pressure at altitudesabove 700 feet multiply the pressure by the listed factorsInches WC x 0577 = ozsq-inOzsq-in x 1732 = Inches WCInches WC x 00361= psigOzsq-in x 00625 = psigPsig x 2771 = Inches WCPsig x 160 = Ozsq-in
Table A1-22 Minimum Required Regulated Gas Pressure
Altitude Conversion
BOILERHP
TYPE OF GAS AND HEAT CONTENT
NATURAL GAS1000 (Btucu-ft)
PROPANE GAS2550 (Btucu-ft)
125 5103 2000
150 6124 2402
200 8165 3202
250 10206 4002
300 12247 4802
350 14280 5600
400 16329 6404
500 20415 8006
600 24494 9605
700 28576 11206
800 32659 12807
Table A1-23 Maximum Gas Consumption (CFH)
for Natural Gas and Propane Vapor
BOILER
HP
MODEL CB
CONNECTION SIZE
(IN NPT)
LOCATIONDIMENSION
ldquoArdquo (IN)
125-200 1-12 52
250-350 2 56
400 2 58
500 2-12 60
600 2-12 - 3 71
700-800 3 65
Figure A1-13 Standard Gas Train Connection Size and Location
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
33
Oil-Fired Burners Fuel oil consumption information is shown on the boiler rating sheets in theDimensions and Rating Section
Figure A1-16 shows the oil connection sizes and locations for Model CB Boilersfiring No 2 oil
Figure A1-17 through Figure A1-18 show typical oil systems and layouts
Figure A1-19 and Figure A1-20 show the detail of an oil transfer tank (day tank)typically utilized to provide a storage reservoir between the oil system supply pumpand the boiler oil pump
General BoilerInformation
Table A1-24 shows blowdown tank sizing information
Table A1-25 provides heating surface information
Table A1-26 provides steam volume and disengaging area information
Table A1-27 provides recommended steam nozzle sizes
Table A1-28 provides recommended non-return valve sizes
Boiler RoomInformation
Figure A1-21 shows typical boiler room length requirements
Figure A1-22 shows typical boiler room width requirements
Figure A1-23 shows typical breeching arrangements
Stack SupportCapabilities
All standard Cleaver-Brooks Firetube Boilers with an LE option can support up to2000 lbs without additional support
LE Boilers 250 hp through 800 hp can be reinforced to support 3000 lbs
StackBreechingSize Criteria
The design of the stack and breeching must provide the required draft at each boilerflue gas outlet Proper draft is critical to burner performance
Although constant pressure at the flue gas outlet of the Model CB-LE is not requiredit is necessary to size the stackbreeching to limit flue gas pressure variation Theallowable pressure range is ndash025 WC to +025 WC
For additional information please review Section I4 General Engineering Data(Stacks) and Section F Stacks Stack and breeching sizes should always be providedby a reputable stack supplier who will design the stack and breeching system basedon the above criteria Your local Cleaver-Brooks authorized representative is capableof assisting in your evaluation of the stackbreeching design
Boiler RoomCombustion Air
When determining boiler room air requirements the size of the room air flow andvelocity of air must be reviewed as follows
1 Size (area) and location of air supply openings in boiler room
A Two (2) permanent air supply openings in the outer walls of the boiler room
are recommended Locate (1) at each end of the boiler room preferablybelow a height of 7 feet This allows air to sweep the length of the boiler
B Air supply openings can be louvered for weather protection but they shouldnot be covered with fine mesh wire as this type of covering has poor air flowqualities and is subject to clogging by dust or dirt
C A vent fan in the boiler room is not recommended as it could create a slightvacuum under certain conditions and cause variations in the quantity ofcombustion air This can result in unsatisfactory burner performance
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
34
D Under no condition should the total area of the air supply openings be lessthan (1) square foot
E Size the openings by using the formulaArea (sq-ft) = CFMFPM
2 Amount of air required (cfm)
A Combustion Air = Rated bhp x 8 cfmbhp
B Ventilation Air = Maximum bhp x 2 cfmbhp
C Total recommended air = 10 cfmbhp - up to 1000 feet elevation Add 3percent more per 1000 feet of added elevation
3 Acceptable air velocity in Boiler Room (fpm)
A From floor to (7) foot height - 250 fpm
B Above (7) foot height - 500 fpm
Example Determine the area of the boiler room air supply openings for (1) 300 hpboiler at 800 feet altitude The air openings are to be 5 feet above floor level
bull Air required 300 x 10 = 3000 cfm (from 2B above)
bull Air velocity Up to 7 feet = 250 fpm (from 3 above)
bull Area Required Area = cfm = 3000250 = 12 sq-ft total
bull AreaOpening 122 = 6 sq-ftopening (2 required)
Notice
Consult local codes which may supersede these requirements
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 3543
Model CBLE 125-800 HP Boilers
35
This figure illustrates the basic gas valve arrangement on Cleaver-BrooksModel CB boiler and shows the contractors connection point The valves andcontrols between the contractor connection point and the gas main in thestreet are representative of a typical installation Actual requirements mayvary depending on local codes or local gas company requirements which
should be investigated prior to preparation of specifications and prior to con-struction
A Utilities service valveB Utilities service regulatorC Gas meterD Piping from meter to boiler
The size of the gas line from the meter to the gas pressure regulator at theboiler can be very important if gas pressures are marginal The gas line sizingis dependent on
1 Gas pressure at outlet of gas meter (C)2 Rate of gas flow required CFH3 Length of pipe run (D)4 Pressure required at contractor connection point
The local gas utility will advise the pressure that is available at the outlet oftheir meter
Figure A1-14 Typical Gas Piping Layout
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Model CBLE 125-800 HP Boilers
36
5
6
S
1
3
42
PILOT GAS LINE
S
S
MAIN GAS LINE
M M
ToBurner
GasSupply
11
10
97
12138
14 15
FLOW
FLOW
Figure A1-15 Model CB-LE Gas Train Components
BOILER
HP
MODEL CB
SUPPLYANDRE-
TURNCONN SIZES
(IN)(NPT)
A(IN)
RECOMMENDED OIL LINEA
SIZES(STANDARD PIPE)
(IN - IPS)
STOR-AGE
TANK TOBOILER
OR PUMPCONNECT
PUMPTO
BOILER
RE-TURN
LINE TOTANK
125150 200
34 12-12 1 1 1
250300350
34 34 1 1 1
400500600
34 11-34 1 1 1
700800
1 11-34 1 1 1
NOTE See No 2 Oil Line Sizing Instruction for systems with other conditions A For suction line condition with a maximum of 10 Feet of lift and a
total of 100 feet of suction line
Figure A1-16 No2 Oil Connection Size Location and Recommended Line Sizes
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
37
Figure A1-17 No 2 Oil Piping Single Boiler
Installation Remote Oil Pump
Figure A1-18 No 2 Oil Piping Multiple Boiler
Installation Remote Oil Pumps
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
38
Figure A1-19 No 2 Oil Piping Multiple Boiler
Installation
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 3943
Model CBLE 125-800 HP Boilers
39
Figure A1-20 No 2 Oil Piping Typical Arrangement
Table A1-24 Model CB-LE Blowdown
Tank Sizing
BOILER HP WATER (GAL)
125 97
150 118
200 145
250 146
300 176
350 210
400 177
500 209
600 250
700 800 296
NOTE Quantity of water removed from boiler by lowering normal water line 4
BOILER
HP
HEATING SURFACE (SQ-FT)
FIRESIDE WATERSIDE
125 625 679
150 750 820
200 1000 1092
250 1250 1346
300 1500 1623
350 1750 1932
400 2000 2151
500 2500 2691
600 3000 3262
700 800 3500 3810
Table A1-25 Heating Surface Model CB-LE
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
40
BOILER HPSTEAM VOLUME CU-FT
STEAM DISENGAGING AREASQ-IN
HIGH PRESSUREA LOW PRESSUREB HIGH PRESSUREA LOW PRESSUREB
125 254 366 5371 5887
150 307 443 6511 7138
200 377 544 7985 8752
250 492 706 7980 8695
300 595 853 9651 10516
350 709 1017 11507 12538
400 721 979 9793 10593
500 837 1137 11376 12303
600 1015 1378 13787 14911
700-800 1198 1627 16273 17600
NOTE Based on normal water levelA Based on 150 psig design pressureB Based on 15 psig design pressure
Table A1-26 Steam Volume and Disengaging Area
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Model CBLE 125-800 HP Boilers
41
BOILERHP
BOILERCAPACITY(LBSHR)
OPERATING PRESSURES (PSIG)
50 75 100 125 150 175 200 250
100 3450
2-12 2-12 NA NA NA NA NA NA
125 4313 3 2-12 2-12 2-12 NA NA NA NA
150 5175 3 3 2-12 2-12 2-12 2-12 NA NA
200 6900 3 3 3 3 3 2-12 2-12 2-12
250 8625 4 3 3 3 3 3 3 3
300 10350 4 4 4 3 3 3 3 3
350 12025 4 4 4 4 4 3 3 3
400 13800 5 4 4 4 4 4 4 3
500 17210 6 5 5 4 4 4 4 4
600 20700 6 6 5 5 5 4 4 4
700 24150 6 6 6 5 5 5 5 4
800 27600 6 6 6 6 6 5 5 5
NOTE Valve sizes (300 Flanges) given in inchesStandard Non-Return valve selections limited to a maximum 2 to 1 turndown(50 of full load) selections based on typical non-return valve sizing recommen-dations For final valve selection contact your C-B authorized representative Forhigh turndown applications see Boiler Book Section I3 Table I3-3 Indicates pressure drop of less than 75 psig All other selections are less than6 psig pressure drop
Boiler HP
OPERATINGPRESSURE
PSIG125 150 200 250 300 350 400 500 600 700 800
15 8 8 10 10 12 12 12 12 12 12 12
30 6 6 8 8 8 10 10 10 12 12 12
40 6 6 6 8 8 8 10 10 10 12 12
50 6 6 6 6 8 8 8 10 10 10 12
75 4 4 6 6 6 8 8 8 8 10 10
100 4 4 6 6 6 6 6 8 8 8 10
125 4 4 4 6 6 6 6 8 8 8 8
150 3 3 4 4 6 6 6 6 6 8 8
200 25 3 4 4 4 4 6 6 6 6 6
250 25 3 3 4 4 4 4 6 6 6 6
NOTES1 Steam nozzle sizes given in inches2 Recommended steam nozzle sizes based on 4000 to 5000 fpm steam velocity3 All standard steam nozzle sizes for 150 psig design pressure or greater are the sameas 125 psig operating pressure on the above table To increase or decrease the standardsize request the change with your local Cleaver-Brooks authorized representative4 Shaded area denotes special surge load baffles must be installed to avoid possible wa-ter carry-over5 For incremental operating pressures see Table I3-1 Steam Systems Fundamentals
Table A1-28 Recommended Steam Nozzle Size (for
4000 to 5000 fpm nozzle velocity)
Table A1-29 Recommended Non-Return Valve Size
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Model CBLE 125-800 HP Boilers
42
1 Shortest boiler room length (Dwg A) is obtained by allowing for possible future tube replacement (from front or rearof boiler) through a window or doorway Allowance is only made for minimum door swing at each end of the boilerThis arrangement provides sufficient aisle space at the front of the boiler but a ldquotightrdquo space condition at the rear
If space permits approximately 15 additional feet should be allowed at the rear for additional aisle and workingspace
2 Next shortest boiler room length (Dwg B) is obtained by allowing for possible future tube replacement from thefront of the boiler Allowance is only made for minimum door swing at the rear
If space permits approximately 15 additional feet should be allowed at the rear for additional aisle and workingspace
3 A slightly longer boiler room (Dwg C) is obtained by allowing for possible future tube replacement from the rear ofthe boiler Allowance for door swing at the front provides sufficient aisle and working space at the front
Figure A1-21 Boiler Room Length (Typical Layouts)
BOILER HP 125-200 250-350 400-800
Dimension A 82 93 102
Dimension B 115 141 171
NOTES1 Recommended Minimum Distance Between Boiler and Wall Dimen-
sion ldquoArdquo allows for a ldquoclearrdquo 42 aisle between the water col-umn on the boiler and the wall If space permits this aisle
should be widened 2 Recommended Minimum Distance Between BoilersDimension ldquoBrdquo between boilers allows for a ldquoclearrdquo aisle of42 - 125 -200 hp48 - 250-350 hp60 - 400-800 hpIf space permits this aisle should be widened
Figure A1-22 Boiler Room Width (Typical Layout)
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 1143
Model CBLE 125-800 HP Boilers
11
Description DIM Boiler HP
400 500 600 700 800
HEIGHTS
Ht Overall K 134 134 134 134 134Base to Vent Outlet L 126 126 126 126 126
Base to Boiler Centerline M 67 67 67 67 67
Base to Gas Train N 12 12 12 12 12
Base to Panel Top T 75 75 75 75 75
Base to Panel Bottom U 15 15 15 15 15
Height of Base V 12 12 12 12 12
Base to Steam Nozzle Y 1215 1235 1215 121 121
WIDTHS
Width Overall O 124 12425 124 124 124
Center to ALWCO P 575 575 575 575 575
Center to Outside Control Panel Q 665 665 665 665 665
Center to Lagging R 51 51 51 51 51
Center to WC S 63 63 63 63 63
Base Inside W 5888 5888 5888 5888 5888
Base Outside X 7188 7188 7188 7188 7188
Boiler ID F 96 96 96 96 96
CONNECTIONS
Electric - Main Power Supply AA 460 3 60 460 3 60 460 3 60 460 3 60 460 3 60
Surface Blowoff (with collector pipe) BB 1 1 1 1 1
Steam Outlet 15 (150 Flange) CC 12 12 12 12 12
Steam Outlet 150 (300 Flange) CC 6 8 8 8 8
Chemical Feed FF 1 1 1 1 1
Feed Water (2) GG 25 25 25 25 25
BlowdownDrain (2) HH 2 2 2 2 2
Water Column Blowdown JJ 075 075 075 075 075
Gauge Glass Blowdown KK 025 025 025 025 025
VENT STACK
Diameter (OD) (flgd connection) 24 24 24 24 24
CLEARANCES
Rear Door Swing 53 53 53 53 53Front Door Swing 108 108 108 108 108Tube Removal Rear 131 152 184 217 217
Tube Removal Front 114 135 167 200 200
MINIMUM BOILER ROOM LENGTH ALLOWING FOR DOOR SWING AND TUBE REMOVAL
From Rear of Boiler 386 428 492 558 558
From Front of Boiler 314 356 420 486 486
Through Window or Doorway 308 329 361 394 394
WEIGHT IN LBS
Normal Water Capacity 14810 15950 19270 23000 23000
Approx Ship Wt 15 psig 33500 37110 42300 49500 49600 Approx Ship Wt 150 psig 36570 39970 45025 52050 52150
Approx Ship Wt 200 psig 39680 43580 49400 57315 57415
Table A1-5 Model CB-LE Steam Boiler Dimensions
96rdquo (15 - 150 psig Design Pressure) - Sheet 2 of 2
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 1243
Model CBLE 125-800 HP Boilers
12
BOILER HP DIM 125 150 200
LENGTHS
Overall (60 ppm System) A 171-12 196-12 228-12
Shell B 125 149 180
Base Frame C 112 136 167
Front Head Extension (60 ppm System) D 27 28 29
Rear Head Extension E 19-12 19-12 19-12
Front Ring Flange to Outlet HH 114 136 167
Front Ring Flange to Return H 89 102 131
Ring Flange to Base F 12 12 12
Over Tubesheets V 113 137 168
Shell Extension P 12 12 12
Rear Flange Ring to Base G 12-12 12-12 12-12
Table A1-6 Model CB-LE Hot Water Boiler Dimensions
60rdquo (30 and 125 psig Design Pressure) - Sheet 1 of 2
Figure A1-4 CB-LE Hot Water - 125-200 HP
R
F G
WW
P
BB
D E
GG
Q
Z
Y T U
RR - RF - RD
X
HH
A
B
HI
L K
OO O
KK
M
N
EE
FF
DD
V
J
C
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 1343
Model CBLE 125-800 HP Boilers
13
BOILER HP DIM 125 150 200
WIDTHS
Overall I 75-12 75-12 75-12
ID Boiler J 60 60 60
Center to Entrance Box K 42-12 42-12 42-12
Center to Outside Hinge KK 35 35 35
Center to Lagging L 33 33 33
Base Outside M 52-12 52-12 52-12
Base Inside N 44-12 44-12 44-12
HEIGHTS
Overall OO 87 87 87
Base to Vent Outlet O 87 87 87
Base to Return and Outlet X 82-38 82-38 82-38
Height of Base Q 12 12 12
Base to Bottom of Boiler R 16 16 16
BOILER CONNECTION
Auxiliary Connection Z 1 1 1
Water Return Flange T 6A 6A 6A
Water Outlet Flange (2 Dip Tube Included) U 6A 6A 6A
Drain Front and Rear W 1-12 1-12 2
Air Vent Y 1-12 1-12 1-12
VENT STACK
Diameter (flgd connection) BB 16 16 16
MINIMUM CLEARANCES
Rear Door Swing DD 32 32 32
Front Door Swing EE 67 67 67
Tube Removal Rear FF 115 139 170Tube Removal Front GG 103 127 158
MINIMUM BOILER ROOM LENGTH ALLOWING FOR DOOR SWING AND TUBE REMOVAL FROM
Rear of Boiler RR 307 355 417
Front of Boiler RF 260 308 370
Thru Window or Doorway RD 224 248 279
WEIGHT IN LBS
Water Capacity Flooded 7670 9295 11130
Approx Ship Wgt ndash 30 psigApprox Ship Wgt ndash 125 psig
1140011800
1250012900
1450014900
NOTES All connections are threaded unless indicatedA ANSI 150 psig flange
Table A1-6 Model CB-LE Hot Water Boiler Dimensions
60rdquo (30 and 125 psig Design Pressure) - Sheet 2 of 2
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 1443
Model CBLE 125-800 HP Boilers
14
BOILER HP DIM 250 300 350
LENGTHS
Overall (60 ppm System) A 191-12 220 252
Shell B 144 171 201
Base Frame C 131 158 188
Front Head Extension (60 ppm System) D 23-12 25 27
Rear Head Extension E 24 24 24
Front Ring Flange to Return H 103-12 130 160
Front Ring Flange to Outlet HH 131 158 188
Ring Flange to Base F 12 12 12
Over Tubesheets V 129 156 186
Shell Extension P 15 15 15
Rear Flange Ring to Base G 12-12 12-12 12-12
Table A1-7 Model CB-LE Hot Water Boiler Dimensions78rdquo (30 and 125 psig Design Pressure) - Sheet 1 of 2
Figure A1-5 CB-LE Hot Water 250-350 HP
s k o o r B r e v a
e l C
R
F G
WW
P
BB
D E
GG
Q
Z
Y T U
RR - RF - RD
X
HH
A
B
HI
L K
OOO
KK
M
N
EE
FF
DD
V
J
C
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 1543
Model CBLE 125-800 HP Boilers
15
BOILER HP DIM 250 300 350
WIDTHS
Overall I 93 93 93
ID Boiler J 78 78 78
Center to Entrance Box K 51 51 51
Center to Outside Hinge KK 51 51 51
Center to Lagging L 42 42 42
Base Outside M 64 64 64
Base Inside N 52 52 52
HEIGHTS
Overall OO 115 115 115
Base to Vent Outlet O 106 106 106
Base to Return and Outlet X 101-12 101-12 101-12
Height of Base Q 10 10 10
Base to Bottom of Boiler R 17 17 17
BOILER CONNECTION
Auxiliary Connection Z 1-14 1-14 1-14
Water Return Flange (2 Dip Tube included) T 8A 8A 8A
Water Outlet Flange (2 Dip Tube Included) U 8A 8A 8A
Air Vent Y 1-12 1-12 1-12
Drain Front and Rear W 2 2 2
VENT STACK
Diameter (flgd connection) BB 20 20 20
MINIMUM CLEARANCES
Rear Door Swing DD 43 43 43
Front Door Swing EE 89 89 89
Tube Removal Rear FF 131 157 187
Tube Removal Front GG 116 142 172
MINIMUM BOILER ROOM LENGTH ALLOWING FOR DOOR SWING AND TUBE REMOVAL FROM
Rear of Boiler RR 364 417 477
Front of Boiler RF 303 356 416
Thru Window or Doorway RD 275 302 332
WEIGHT IN LBS
Water Capacity Flooded 13880 16840 20090
Approx Ship Wgt ndash 30 psigApprox Ship Wgt ndash 125 psig
2140022200
2350024300
2670027500
NOTES All connections are threaded unless indictedA ANSI 150 psig flange
Table A1-7 Model CB-LE Hot Water Boiler Dimensions
78rdquo (30 and 125 psig Design Pressure) - Sheet 2 of 2
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 1643
Model CBLE 125-800 HP Boilers
16
BOILER HP DIM 400 500 600 700 800
LENGTHS
Overall (60 ppm System) A 206 228 262 299 300
Shell B 147 168 200 233 233
Base Frame C 134 155 187 220 220
Front Head Extension (60 ppm System) D 27 28 30 34 35
Rear Head Extension E 32 32 32 32 32
Shell Ring Flange to Base F 12 12 12 12 12
Rear Ring Flange to Base G 12-12 12-12 12-12 12-12 12-12
Shell Flange to Outlet HH 139-12 156-12 182-12 216-12 216-12
Shell Flange to Return H 107 125 151-12 185 185
Over Tubesheets V 130 151 183 216 216
Shell Extension P 17 17 17 17 17
Table A1-8 Model CB-LE Hot Water Boiler Dimensions96rdquo (30 and 125 psig Design Pressure) - Sheet 1 of 2
Figure A1-6 CB-LE Hot Water 400-800 HP
s k o o r B r e v a
e l C
R
F G
WW
P
BB
D E
GG
Q
Z
Y T U
RR - RF - RD
X
HH
A
B
HI
L K
OOO
KK
M
N
EE
FF
DD
V
J
C
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 1743
Model CBLE 125-800 HP Boilers
17
WIDTHS
Overall I 113 113 113 113 115
ID Boiler J 96 96 96 96 96
Center to Entrance Box K 62 62 62 62 64
Center to Outside Hinge KK 62 62 62 62 62
Center to Lagging L 51 51 51 51 51
Base Outside M 72 72 72 72 72
Base Inside N 56 56 56 56 56
HEIGHTS
Overall OO 134 134 134 134 134
Base to Vent Outlet O 126 126 126 126 126
Height of Base Q 12 12 12 12 12
Base to Bottom of Boiler R 19 19 19 19 19
Base to Return and Outlet X 121-916 121-916 121-916 121-916 121-916
BOILER CONNECTIONS
Auxiliary Connection Z 1-14 1-14 1-14 1-14 1-14
Drain Front and Rear W 2 2 2 2 2
Water Return T 10A 10A 12A 12A 12A
Water Outlet (2rdquo Dip Tube Included) U 10A 10A 12A 12A 12A
Air Vent Y 2 2 2 2 2
VENT STACK
Diameter (Flanged Connection) BB 24 24 24 24 24
MINIMUM CLEARANCES
Rear Door Swing DD 53 53 53 53 53
Front Door Swing EE 108 108 108 108 108
Tube Removal Rear FF 131 152 184 217 217
Tube Removal Front GG 114 135 167 200 200
MINIMUM BOILER ROOM LENGTH ALLOWING FOR DOOR SWING AND TUBE REMOVAL FROM
Rear of Boiler RR 386 428 492 558 558
Front of Boiler RF 314 356 420 486 486
Thru Window or Doorway RD 308 329 361 394 394
WEIGHT IN LBS
Normal Water Capacity 20015 23300 28260 33360 33360
Approx Ship Wgt ndash 30 psig
Approx Ship Wgt ndash 125 psig
33300
37270
36900
40780
42150
46005
49650
53300
49750
53400
NOTES All connections are threaded unless indicated
A ANSI 150 psig flange
BOILER HP DIM 400 500 600 700 800
Table A1-8 Model CB-LE Hot Water Boiler Dimensions
96rdquo (30 and 125 psig Design Pressure) - Sheet 2 of 2
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 1843
Model CBLE 125-800 HP Boilers
18
BOILER HP
MOTOR HP
60PPM
30PPM
25PPM
20PPM
125 5 10 5 10
150 75 10 10 10
200 15 15 20 NA
250 75 10 15 15
300 10 15 20 30
350 15 25 40 40
400 10 15 20 20
500 15 20 25 30
600 25 30 50 60
700 30 50 75 75
800 50 75 NA NA
NOTES For elevations above 700rsquo - contact your local
Cleaver-Brooks authorized representative
Table A1-9 Model CB-LE Blower Motor Selection -
Operating Pressures 150 psig and Less and All Hot
Water Boilers
BOILER HP
MOTOR HP
60
PPM
30
PPM
25
PPM
20
PPM
125 5 10 10 10
150 10 10 10 15
200 15 20 20 NA
250 75 10 15 20
300 10 20 30 40
350 20 30 40 50
400 10 15 20 25
500 20 25 30 40
600 25 40 60 60
700 40 60 75B 75C
800 60 75A NA NA
NOTES For elevation above 700rsquo - contact your local
Cleaver-Brooks authorized representative
A Downrate to 770 hp
B Downrate to 675 hp
C Downrate to 660 hp
Table A1-10 Model CB-LE Blower Motor Selection -
Operating Pressures Greater than 150 psig (Steam
Boilers)
09-09
Table A1-11 Blower Motor Selection CB-LE NTI BoilersTable A1-12 Turndown Guarantee for CB-LE NTI
Boilers - Natural Gas amp 2 Oil
Boiler SizeTurndown
9 ppm 15 ppm
125 41 41
150 41 51
200 41 51
250 51 51
300 51 51
350 51 51
400 51 61
500 51 61
600 61 61
700 71 71
800 71 71
800 HP to be derated to 720 HP for 9 ppm and 750 HP
for 15 ppm
Altitude 700 ft and less - Design Pressure 150 psi and less
800 HP - to be de-rated to 720 HP for 9 ppm and to 750 HP for 15 ppm
mpp9mpp51Nominal
Boiler Size Blower Motor HP Blower Motor HP
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Model CBLE 125-800 HP Boilers
19
BOILER HPFUEL
SERIES
HOT WATER STEAM
30 PSIG 125 PSIG 15 PSIG 150 PSIG 200 PSIG
125100 11200 11600 11300 12000 12600200 11400 11800 11500 12400 13000
700 11300 11700 11400 12300 12900
150
100 12300 12700 12400 13200 13900
200 12500 12900 12600 13500 14200
700 12300 12700 12400 13300 14000
200
100 14400 14800 14500 15500 16300
200 14500 14900 14600 15600 16400
700 14500 14900 14600 15600 16400
250
100 20700 21500 20800 22000 23800
200 21400 22200 21500 22800 24600
700 20900 21700 21000 22500 24300
300
100 23100 23900 23200 24800 26800
200 23500 24300 23600 25200 27200
700 23400 24200 23500 25000 27000
350
100 26200 27000 26300 27600 29100
200 26700 27500 26800 27800 29300
700 26400 27200 26500 27700 29200
400
100 33000 36970 33200 36270 39380
200 33300 37270 33500 36570 39680
700 33200 37170 33400 36470 39580
500
100 36600 40470 36810 39670 43480
200 36900 40780 37110 39970 43580
700 36800 40680 37010 39870 43280
600
100 41850 45905 42000 44725 49100
200 42150 46005 42300 45025 49400
700 42050 45915 42200 44925 49300
700800
100 49450 53000 49300 51850 57015
200 49750 53300 49600 52150 57315
700 49650 53200 49500 52050 57215
NOTES1 Weights shown are based on standard product offering for current listed boilers If units are of special design and construction actual weightwill be determined at time of shipment Shipment will then be made on shippers weight and count All weights are in US pounds
Table A1-13 Model CB-LE Boiler Weights
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Model CBLE 125-800 HP Boilers
20
VALVE
SETTING15 PSIG STEAM 100 PSIG STEAM 125 PSIG STEAM 150 PSIG STEAM 200 PSIG STEAM 250 PSIG STEAM 300 PSIG STEAM
BOILERHP
NO OF
VALVES-REQD
OUTLET
SIZE(IN)
NO OF
VALVES-REQD
OUTLET
SIZE(IN)
NO OF
VALVESREQD
OUTLET
SIZE(IN)
NO OF
VALVES-REQD
OUTLET
SIZE(IN)
NO OF
VALVES-REQD
OUTLET
SIZE(IN)
NO OF
VALVESREQD
OUTLET
SIZE(IN)
NO OF
VALVESREQD
OUTLET
SIZE(IN)
125 1 3 2 1-12 2(1) 1-12(1) 1-14
2(1) 1-12(1) 1-14
2(1) 1-14(1) 1
2 1 2 1
150 1 3 2(1) 2(1) 1-12
2 1-14 2(1) 1-12(1) 1-14
2(1) 1(1) 1-14
2 1 2 1
200 2 2-12 2 2 2 1-12 2 1-12 2(1) 1-12(1) 1-14
2 1-14 2(1) 1(1) 1-14
250 2(1) 2-12(1) 3
2(1) 2-12(1) 2
2(1)2(1)1-12
2(1) 2(1) 1-12
2(1)1-12(1)1-14
2(1) 1-12(1) 1-14
2 1-14
300 2 3 2(1) 2-12(1) 2
2 2 2(1) 2(1) 1-12
2 1-12 2(1)1-12(1)1-14
2(1) 1-12(1) 1-14
350 3(1) 2(2) 3
3(1) 2-12(2) 2
2(1)2(1)1-12
2 2 2(1) 1-12(1) 2
2 1-12 2(1) 1-12(1) 1-14
400 3(2) 3(1) 2-12
3(1) 2(2) 2-12
2(1)2(1)2-12
2(1) 2-12(1) 2
2(1) 1-12(1) 2
2(1) 2(1) 1-12
2 1-12
500 3 (3) 3 3 2-12 2 2-12 2(1) 2-12(1) 2
2(1) 2(1) 2-12
2(1) 2(1)1-12
2(1) 1-12(1) 2
600 4 3 4(3) 2-12(1) 2
3 2-12 2 2-12 2(1) 2(1) 2-12
2 2 2 2
700 5(3) 3(2) 2-12
5(3) 2-12(2) 2
3 2-12 3(2) 2-12(1) 2
2 2-12 2(1) 2(1) 2-12
2 2
800 5(3) 3(2) 2-12
5(3) 2-12(2) 2
4(3) 2-12(1) 2
3(2) 2-12(1) 2
2 2-12 2(1) 2(1) 2-12
2(1) 2(1) 2-12
NOTES Valve manufacturers are Kunkle Consolidated or Conbraco depending on availability This table revised 042012
Table A1-14 Steam Boiler Safety Valve Openings
VALVE
SETTING 30 PSIG HW 60 PSIG HW 100 PSIG HW 125 PSIG HW
BOILER HPNO OF
VALVESREQD
OUTLETSIZE(IN)
NO OFVALVESREQD
OUTLETSIZE(IN)
NO OFVALVESREQD
OUTLETSIZE(IN)
NO OFVALVESREQD
OUTLETSIZE(IN)
125 1 2-12 1 2 1 2 1 1-14
150 1 2-12 1 2-12 1 2 1 2
200 2(1) 2-12(1) 1-14
1 2-12 1 2 1 2
250 2 (1) 2(1) 2-12
1 2-12 1 2-12 1 2
300 2 2-12 2(1) 1(1) 2-12
1 2-12 1 2-12
350 3(2) 2-12(1) 1
2(1) 2-12(1) 2
1 2-12 1 2-12
400 3 (1) 2(2) 2-12 2 (1) 2(2) 2-12 2 (1) 1(1) 2-12 1 2-12
500 4 (1) 1(3) 2-12
2 2-12 2(1) 2-12(1) 1-14
2(1) 1(1) 2-12
600 4(3) 2-12(1) 2
3(1) 1-1(2) 2-12
2(1) 2(1) 2-12
2(1) 2-12(1) 1-14
700 amp 800 5 (1) 1(4) 2-12
3(1) 2(2) 2-12
2 2-12 2(1) 2-12(1) 2
NOTES Hot water relief valves are Kunkle 537
Table A1-15 Hot Water Boiler Relief Valve Openings
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Model CBLE 125-800 HP Boilers
21
BOILER HP A B C D E F G X1 X2 X3
125 6 9 112 39-12 57-12 4 44-12 10 9-34 22-12
150 6 9 136 39-12 57-12 4 44-12 10 9-34 22-12
200 6 9 167 39-12 57-12 4 44-12 10 9-34 22-12
250 6 12 131 46 70 4 56 10 22 22-12
300 6 12 158 46 70 4 56 10 22 22-12
350 6 12 188 46 70 4 56 10 22 22-12
NOTE
All numbers in table are in inches
6-inch high mounting piers recommended for use beneath the boiler base frame The use of these piers provides increased inspection
accessibility to the piping beneath the boiler and added height for washing down the area beneath the boiler
Figure A1-7 Space Required to Open Rear Head on Model CB-LE Boilers Equipped with Davits
BOILER HPDIMENSIONS (INCHES)
A B C D E
CB-125 THRU CB-200 33 55 45 68 32
CB-250 THRU CB-350 42 69 58 86 43
CB-400 THRU CB-800 51 88 71 109 53
Figure A1-8 Model CB-LE Boiler Mounting Piers (60rdquo and 78rdquo)
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Model CBLE 125-800 HP Boilers
22
BOILER HP A B C D E F G
400 6 14 134 50 78 6-12 58-78
500 6 14 155 50 78 6-12 58-78
600 6 14 187 50 78 6-12 58-78
700-800 6 14 220 50 78 6-12 58-78
NOTE1 All numbers in table are in inches2 6-inch high mounting piers recommended for use beneath the boiler base frame The use of these piers provides in-
creased inspection accessibility to the piping beneath the boiler and added height for washing down the area beneaththe boiler
Figure A1-9 Model CB-LE Boiler Mounting Piers (96rdquo)
CBLE 250-350HP
CBLE 400-800HP
Motor HP Hole Number
75 1
15 1
25 2
40 3
Motor HP Hole Number
10 1
20 1
30 250 2
75 3
Figure A1-10 Front Davit Support
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Model CBLE 125-800 HP Boilers
23
BOILERHP
VIEW
ALL DIMENSIONS IN INCHES
A B C D E
125 All B 80-14 29-34 70-12 10 3
150 All B 80-14 29-34 83-12 10 3
200 All B 80-14 29-34 114-12 10 3
250Steam B 99 36 72 10 3
Hot Water B 99 36 81 10 3
300
Steam B 99 36 99 10 3
Hot Water B 99 36 108 10 3
350Steam B 99 36 129 10 3
Hot Water B 99 36 138 10 3
400Steam B 119 35-34 78 11 3
Hot Water B 119 35-34 78 11 3
500Steam B 119 35-34 99 11 3
Hot Water B 119 35-34 99 11 3
600Steam B 119 35-34 131 11 3
Hot Water B 119 35-34 131 11 3
700 amp 800Steam B 119 35-34 164 11 3
Hot Water B 119 35-34 164 11 3
NOTE A B and C dimensions may vary by 12 inch
Figure A1-11 Lifting Lug Location Model CB-LE Boilers
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Model CBLE 125-800 HP Boilers
24
PERFORMANCE DATA
The Low Emission Option provides NOx reduction at current published andpredicted fuel-to-steam efficiencies
Specifying BoilerEfficiency
Cleaver-Brooks offers an industry leading fuel-to-steam boiler efficiency guaranteefor Model CB-LE Firetube Boilers The guarantee is based on the fuel-to-steam
efficiencies shown in the efficiency tables and the following conditions Theefficiency percent number is only meaningful if the specific conditions of theefficiency calculations are clearly stated in the specification (see Cleaver-Brookspublication CB-7768 for a detailed description of efficiency calculations)
When specifying the efficiencies in the tables be sure to include the specificguarantee conditions to maximize the effectiveness of your efficiency specification Ifyou have any questions regarding the efficiency specifications please contact yourlocal Cleaver-Brooks authorized representative
EfficiencySpecification
The boiler manufacturer shall guarantee that at the time of startup the boiler willachieve fuel-to-steam efficiency (as shown in Table A1-16 and Table A1-17) at100 firing rate (add efficiency guarantees at 25 50 and 75 of rating if
required) If the boiler(s) fail to achieve the corresponding guaranteed efficiency aspublished the boiler manufacturer will rebate to the ultimate boiler owner tenthousand dollars ($10000) for every full efficiency point (10) that the actualefficiency is below the guaranteed level
The specified boiler efficiency is based on the following conditions
1 Fuel specification used to determine boiler efficiency
bull Natural Gas
Carbon (wt) = 6998Hydrogen (wt) = 2231Sulfur (wt) = 00
Heating value Btulb = 21830bull No 2 Oil
Carbon (wt) = 858Hydrogen (wt) = 127Sulfur (wt) = 02Heating value Btulb = 19420
No 6 Oil
Carbon (wt) = 866Hydrogen (wt) = 109Sulfur (wt) = 209Heating value Btulb = 18830
2 Efficiencies are based on ambient air temperature of 80 degF relative humidity of30 and 15 excess air in the exhaust flue gas
3 Efficiencies are based on manufacturerrsquos published radiation and convectionlosses (For Cleaver-Brooks radiation and convection losses see BoilerEfficiency Facts Guide publication number CB-7767)
4 Any efficiency verification testing will be based on the stack loss method
For efficiencies and stack temperatures at operating pressures not listed followthese procedures
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Model CBLE 125-800 HP Boilers
25
When the operating steam pressure is between 10 psig and 125 psig interpolatethe values from the efficiency tables
When the operating steam pressure is above 125 psig estimated efficiency can becalculated as follows
Example
Boiler 350 hpFuel natural gas
Operating steam pressure 200 psig
Find the fuel-to-steam efficiency at 100 firing rate From Table A1-16 for a 350hp boiler operating at 100 firing rate and an operating steam pressure of 125psig the efficiency is 825
Using Figure A1-12 note that the stack temperature increases 36 degF at the higheroperating pressure To estimate boiler efficiency use this rule of thumb For every40 degF increase in stack temperature efficiency decreases by 1 Since the stacktemperature rise is 36 degF the decrease in the boiler efficiency at 200 psig operatingpressure is calculated as follows 3640 =9 Therefore the boiler efficiency at200 psig operating pressure is 825 -9 = 816
Emissions The emission data included in this section consists of typical emission levels forModel CB boilers equipped with 60 30 25 and 20 ppm LE Options when firingnatural gas and No 2 oil
Notice
The data in Table A1-18 and Table A1-19 represent typical emission levels only
Guaranteed emission levels are available from your local Cleaver-Brooks authorized
representative
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Model CBLE 125-800 HP Boilers
26
BOILER
HP
OPERATING PRESSURE = 10 psig OPERATING PRESSURE = 125 psig
OF LOAD OF LOAD
25 50 75 100 25 50 75 100
125 833 836 834 832 804 809 810 810
150 844 846 845 843 815 820 820 821
200 850 853 851 849 822 827 827 827
250 850 847 840 833 820 820 816 813
300 853 853 846 839 826 827 822 819
350 853 857 852 845 826 832 828 825
400 845 847 846 844 818 822 824 822
500 855 857 855 852 828 832 833 831
600 857 860 858 856 829 835 836 835
700 857 862 860 857 830 836 836 836
800 858 861 859 856 831 836 837 835
Table A1-16 Predicted Fuel-to-Steam Efficiencies - Natural Gas
Figure A1-12 Predicted Stack Temperature Increase for Pressure Greater Than 125 psig
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Model CBLE 125-800 HP Boilers
27
Table A1-18 CB-LE Boilers - Natural Gas Emission Levels
POLLUTANT
ESTIMATED LEVEL
60 ppm 30 ppm 25 ppm 20 ppm 15 ppm 9 ppm
CO ppmA
lbMMBtu
50150B
004011
50150B
004011
50150B
004011
50150B
004011
50
004
50
004
NOx ppmA
lbMMBtu
60
007
30
0035
25
003
20
0024
15
0018
9
0011
SOx ppmA
lbMMBtu
1
0001
1
0001
1
0001
1
0001
1
0001
1
0001
HCVOC5 ppmA
lbMMBtu
10
0004
10
0004
10
0004
10
0004
10
0004
10
0004
PM ppmA
lbMMBtu
-
001
-
001
-
001
-
001
-
001
-
001
A ppm levels are given on a dry volume basis and corrected to 3 oxygen (15 excess air)
B CO emission for 60 30 25 amp 20 ppm system is 50 ppm (004 lbMMBtu) when boiler is operating above 50 of rated capacity
CO emission is 150 ppm (011 lbMMBtu) when boiler is operating below 50 of rated capacity
Table A1-17 Predicted Fuel-to-Steam Efficiencies - No 2 Oil
BOILER
HP
OPERATING PRESSURE = 10 psig OPERATING PRESSURE = 125 psig
OF LOAD OF LOAD
25 50 75 100 25 50 75 100
125 867 869 867 866 837 842 843 843
150 878 880 878 876 848 853 853 854
200 884 887 884 882 856 860 860 860
250 883 881 874 867 853 853 849 847
300 886 887 880 873 859 860 855 852
350 886 890 885 878 859 866 861 858
400 879 881 879 876 851 855 856 855
500 889 890 889 886 861 865 866 864
600 890 894 892 890 862 868 869 868
700 891 895 893 891 863 869 870 869
800 892 895 893 890 864 869 870 868
Table A1-19 CB-LE Boilers - No 2 Oil Emission Levels
POLLUTANTESTIMATED LEVEL
60 ppm LE Option 30 25 20 ppm LE Option 15 ppm 9 ppm
CO ppmA
lbMMBtu
50
0039
50
0039
50
0039
50
0039
NOx ppmA
lbMMBtu140
018690
012085
011370
0093
SOx ppmA
lbMMBtu
278
052
278
052
278
052
278
052
HCVOCs ppmA
lbMMBtu
4
0002
4
0002
4
0002
4
0002
PM ppmA
lbMMBtu
-
0025
-
0025
-
0025
-
0025
A ppm levels are given on a dry volume basis and corrected to 3 oxygen (15 excess air)
BASED ON THE FOLLOWING CONSTITUENT LEVELS
Fuel-bound Nitrogen content = 0015 by weight
Sulfur content = 05 by weight
Ash content = 001 by weight
09-09
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Model CBLE 125-800 HP Boilers
28
ENGINEERING DATA
Sound Level Table A1-20 gives a summary of predicted sound pressure levels for Model CBboilers with 30 ppm LE Options Contact your local Cleaver-Brooks authorizedrepresentative for sound levels or other LE Options
Units - The units for the sound level tables are dbA (decibels measured on the A-weighted scale) in reference to 00002 microbars (20 micro-Newtons per square
meter) Their reference are standardly used in specifying and reporting soundpressure levels on industrial equipment
Test Method - The sound pressure levels in the above tables were obtained fromtests in accordance with the ldquoABMA Test Code for the Measurement of Sound fromPackaged Boilersrdquo In accordance with this code the sound pressure levels reportedwere measured on the boiler centerline 4-12 feet vertically above the bottom of thebase rails and 3 feet horizontally in front of the end of the blower motor or frontsurface of the electrical cabinet
Sound Level Meter - The sound level meter used complies with ANSI S14 Type 1(Precision) The readings are taken with the meter set for slow response andcorrected for background levels
Sound Pressure - The large size boilers the need for auxiliary equipment and thenecessary interconnecting piping make it impractical (and sometimes impossible) toprovide a boiler testing environment which is suitable for taking the data needed todevelop Sound Pressure Power levels
Typical Values - Sound pressure levels (dbA) for the same boiler will vary betweenboiler rooms Sound levels will vary with motor type NOx levels and altitudes Inaddition variations will occur between different people using different sound meterson the same boiler And finally no two boilers can be expected to give precisely thesame sound levels For these reasons we can only predict but not guarantee soundlevels (dbA)
BOILER HP 125 150 200 250 300 350 400 500 600 700 800
HFO dbA 84 84 84 83 84 85 84 85 85 88 90
LFO dbA 82 82 83 81 82 83 82 83 83 84 89
HFG dbA 82 82 83 82 83 84 83 83 85 87 90
LFG dbA 81 81 82 81 82 83 81 81 82 84 88
NOTES1 Sound pressure levels measured on boilers operating in various locations and ex-
pressed in dbA are as shown2 Based on standard altitude fans and fan motors 60 Hz3 Contact your local Cleaver-Brooks authorized representative for sound levels of 60 25or 20 ppm LE Options
ABBREVIATIONS
HF = High Fire LF = Low Fire O = Oil G = Gas
Table A1-20 Model CBLE Predicted Sound Levels 30 ppm NOx Systemss
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Model CBLE 125-800 HP Boilers
29
Gas-Fired Burners Table A1-21 shows gas pressure with standard over- and undersized gas trains
Table A1-22 shows minimum required gas pressure altitude conversion
Figure A1-13 shows standard gas train sizes and locations for Model CB FiretubeBoilers
Figure A1-14 shows typical gas train piping layouts for multiple boiler applications
Figure A1-15 shows standard gas train components
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Model CBLE 125-800 HP Boilers
30
Table A1-21 Standard Undersize and Oversize Gas Trains
CBLE
BOILER HP GAS TRAINSIZE
UPSTREAMVALVE
DOWNSTREAMVALVE
EMISSIONS LEVEL 09 ppm 15 ppm 20 ppm 30 ppm 60 ppm UC
125 HP 15 in BB BB 33 - 49 psi 33 - 49 psi 08 - 50 psi 07 - 50 psi 07 - 50 psi 07 - 50 ps
125 HP 15 in PC PC 34 - 50 psi 34 - 50 psi 09 - 50 psi 08 - 50 psi 08 - 50 psi 08 - 50 ps
125 HP 20 in BB BB 31 - 33 psi 31 - 33 psi 06 - 08 psi 06 - 07 psi 05 - 07 psi 05 - 07 ps
125 HP 20 in PC PC 31 - 34 psi 31 - 34 psi 06 - 09 psi 06 - 08 psi 06 - 08 psi 05 - 08 ps
125 HP 25 in PC PC 30 - 31 psi 30 - 31 psi 04 - 06 psi 04 - 06 psi 04 - 05 psi 04 - 05 ps
125 HP 30 in PC PC 29 - 30 psi 29 - 30 psi 04 - 04 psi 04 - 04 psi 04 - 04 psi 03 - 04 ps
125 HP 40 in PC PC 29 - 29 psi 29 - 29 psi 04 - 04 psi 03 - 04 psi 03 - 04 psi 03 - 03 ps
150 HP 15 in BB BB 37 - 55 psi 39 - 58 psi 10 - 47 psi 09 - 50 psi 09 - 50 psi 09 - 50 ps
150 HP 15 in PC PC 38 - 57 psi 40 - 60 psi 11 - 42 psi 11 - 50 psi 10 - 50 psi 10 - 50 ps
150 HP 20 in BB BB 34 - 37 psi 36 - 39 psi 07 - 10 psi 06 - 09 psi 06 - 09 psi 06 - 09 ps
150 HP 20 in PC PC 34 - 38 psi 36 - 40 psi 07 - 11 psi 07 - 11 psi 07 - 10 psi 06 - 10 ps
150 HP 25 in PC PC 32 - 34 psi 34 - 36 psi 05 - 07 psi 04 - 06 psi 04 - 06 psi 04 - 06 ps
150 HP 30 in PC PC 32 - 32 psi 34 - 34 psi 04 - 05 psi 04 - 04 psi 04 - 04 psi 03 - 04 ps
150 HP 40 in PC PC 31 - 32 psi 33 - 34 psi 04 - 04 psi 03 - 04 psi 03 - 04 psi 03 - 03 ps
200 HP 15 in BB BB 46 - 69 psi 50 - 75 psi 16 - 50 psi 15 - 50 psi 15 - 50 ps
200 HP 15 in PC PC 48 - 72 psi 52 - 78 psi 18 - 50 psi 17 - 50 psi 17 - 50 ps
200 HP 20 in BB BB 41 - 46 psi 45 - 50 psi 10 - 16 psi 10 - 15 psi 10 - 15 ps
200 HP 20 in PC PC 41 - 48 psi 45 - 52 psi 11 - 18 psi 11 - 17 psi 10 - 17 ps
200 HP 25 in PC PC 38 - 41 psi 42 - 45 psi 07 - 10 psi 07 - 10 psi 06 - 10 ps
200 HP 30 in PC PC 36 - 38 psi 40 - 42 psi 06 - 07 psi 05 - 07 psi 05 - 06 ps
200 HP 40 in PC PC 36 - 36 psi 40 - 40 psi 05 - 06 psi 05 - 05 psi 04 - 05 ps
250 HP 15 in BB BB 41 - 62 psi 44 - 67 psi 24 - 50 psi 24 - 27 psi 24 - 26 psi 23 - 26 ps
250 HP 15 in PC PC 45 - 67 psi 48 - 72 psi 28 - 50 psi 27 - 28 psi 27 - 27 psi 27 - 27 ps
250 HP 20 in BB BB 33 - 38 psi 37 - 41 psi 16 - 24 psi 16 - 24 psi 16 - 24 psi 15 - 23 ps
250 HP 20 in PC PC 34 - 40 psi 37 - 43 psi 17 - 28 psi 17 - 27 psi 16 - 27 psi 16 - 27 ps
250 HP 25 in PC PC 29 - 33 psi 32 - 37 psi 11 - 16 psi 11 - 16 psi 11 - 16 psi 10 - 15 ps
250 HP 30 in PC PC 27 - 29 psi 31 - 32 psi 09 - 11 psi 09 - 11 psi 09 - 11 psi 09 - 10 ps
250 HP 40 in PC PC 26 - 27 psi 29 - 31 psi 08 - 09 psi 08 - 09 psi 08 - 09 psi 08 - 09 ps
300 HP 15 in - 20 in BB BB 55 - 83 psi 57 - 85 psi 30 - 50 psi 30 - 36 psi 30 - 35 psi 30 - 35 ps
300 HP 15 in - 20 in PC PC 58 - 87 psi 60 - 90 psi 33 - 50 psi 33 - 37 psi 33 - 36 psi 33 - 36 ps
300 HP 20 in BB BB 46 - 55 psi 47 - 57 psi 21 - 30 psi 21 - 30 psi 20 - 30 psi 20 - 30 ps
300 HP 20 in PC PC 47 - 58 psi 48 - 60 psi 22 - 33 psi 22 - 33 psi 21 - 33 psi 21 - 33 ps
300 HP 30 in PC PC 39 - 46 psi 40 - 47 psi 13 - 21 psi 13 - 21 psi 12 - 20 psi 12 - 20 ps
300 HP 40 in PC PC 37 - 39 psi 39 - 40 psi 11 - 13 psi 11 - 13 psi 10 - 12 psi 10 - 12 ps
350 HP 15 in - 20 in BB BB 64 - 90 psi 62 - 90 psi 42 - 50 psi 42 - 50 psi 41 - 50 psi 41 - 50 ps
350 HP 15 in - 20 in PC PC 68 - 90 psi 66 - 90 psi 46 - 50 psi 46 - 50 psi 45 - 50 psi 45 - 50 ps
350 HP 20 in BB BB 54 - 64 psi 53 - 62 psi 32 - 42 psi 32 - 42 psi 32 - 41 psi 31 - 41 ps
350 HP 20 in PC PC 56 - 68 psi 54 - 66 psi 34 - 46 psi 34 - 46 psi 33 - 45 psi 33 - 45 ps
350 HP 25 in PC PC 43 - 54 psi 42 - 53 psi 21 - 32 psi 21 - 32 psi 20 - 32 psi 20 - 31 ps
350 HP 30 in PC PC 40 - 43 psi 38 - 42 psi 17 - 21 psi 17 - 21 psi 17 - 20 psi 16 - 20 ps
350 HP 40 in PC PC 37 - 40 psi 36 - 38 psi 15 - 17 psi 15 - 17 psi 14 - 17 psi 14 - 16 ps
400 HP 15 in - 20 in BB BB 69 - 90 psi 69 - 90 psi 46 - 50 psi 46 - 50 psi 45 - 50 psi 45 - 50 ps
400 HP 15 in - 20 in PC PC 74 - 90 psi 75 - 90 psi 51 - 87 psi 51 - 77 psi 51 - 77 psi 51 - 77 ps
400 HP 20 in BB BB 55 - 69 psi 56 - 69 psi 32 - 46 psi 32 - 46 psi 32 - 45 psi 32 - 45 ps
400 HP 20 in PC PC 57 - 74 psi 58 - 75 psi 34 - 50 psi 34 - 50 psi 34 - 50 psi 34 - 50 ps
400 HP 25 in PC PC 41 - 55 psi 42 - 56 psi 18 - 32 psi 18 - 32 psi 18 - 32 psi 18 - 32 ps
400 HP 30 in PC PC 37 - 41 psi 38 - 42 psi 13 - 18 psi 13 - 18 psi 13 - 18 psi 13 - 18 ps
400 HP 40 in PC PC 34 - 37 psi 35 - 38 psi 11 - 13 psi 10 - 13 psi 10 - 13 psi 10 - 13 ps
500 HP 20 in - 25 in BB PC 58 - 76 psi 58 - 76 psi 46 - 50 psi 46 - 50 psi 45 - 50 psi 45 - 50 ps
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 3143
Model CBLE 125-800 HP Boilers
31
BB = Butter Ball PC = Plug Cock
NOTE In cases where the gas train increases in size after the regulating valve two diameters are listed The first number is the customer connection size
500 HP 20 in - 25 in PC PC 60 - 83 psi 60 - 83 psi 48 - 50 psi 47 - 50 psi 47 - 50 psi 47 - 50 psi
500 HP 25 in PC PC 39 - 58 psi 39 - 58 psi 27 - 46 psi 27 - 46 psi 27 - 45 psi 26 - 45 psi
500 HP 30 in PC PC 33 - 39 psi 33 - 39 psi 20 - 27 psi 20 - 27 psi 20 - 27 psi 20 - 26 psi
500 HP 40 in PC PC 28 - 33 psi 28 - 33 psi 16 - 20 psi 16 - 20 psi 15 - 20 psi 15 - 20 psi
600 HP 20 in - 25 in BB PC 80 - 90 psi 80 - 90 psi 65 - 90 psi 65 - 90 psi 64 - 89 psi 63 - 88 psi
600 HP 20 in - 25 in PC PC 82 - 90 psi 82 - 90 psi 67 - 100 psi 67 - 100 psi 66 - 99 psi 66 - 99 psi
600 HP 25 in PC PC 54 - 80 psi 54 - 80 psi 39 - 50 psi 38 - 50 psi 38 - 50 psi 37 - 50 psi
600 HP 25 in - 30 in PC PC 52 - 54 psi 52 - 54 psi 37 - 39 psi 36 - 38 psi 35 - 38 psi 35 - 37 psi
600 HP 30 in PC PC 43 - 52 psi 43 - 52 psi 28 - 37 psi 27 - 36 psi 27 - 35 psi 26 - 35 psi
600 HP 40 in PC PC 37 - 43 psi 37 - 43 psi 22 - 28 psi 21 - 27 psi 20 - 27 psi 20 - 26 psi
700 HP 20 in - 30 in BB PC 110 - 150 psi 107 - 150 psi 87 - 131 psi 86 - 130 psi 86 - 129 psi 86 - 128 psi
700 HP 20 in - 30 in PC PC 113 - 150 psi 110 - 150 psi 90 - 135 psi 89 - 134 psi 89 - 134 psi 89 - 133 psi
700 HP 25 in - 30 in PC PC 71 - 90 psi 68 - 90 psi 48 - 50 psi 47 - 50 psi 47 - 50 psi 46 - 50 psi
700 HP 30 in PC PC 60 - 71 psi 57 - 68 psi 36 - 48 psi 36 - 47 psi 35 - 47 psi 35 - 46 psi
700 HP 40 in PC PC 51 - 60 psi 48 - 57 psi 28 - 36 psi 27 - 36 psi 27 - 35 psi 26 - 35 psi
800 HP 20 in - 30 in BB PC 108 - 150 psi 107 - 150 psi 106 - 150 psi
800 HP 20 in - 30 in PC PC 112 - 150 psi 111 - 150 psi 110 - 150 psi800 HP 25 in - 30 in PC PC 61 - 90 psi 60 - 100 psi 59 - 100 psi
800 HP 30 in PC PC 48 - 61 psi 47 - 50 psi 46 - 50 psi
800 HP 40 in PC PC 35 - 48 psi 34 - 47 psi 34 - 46 psi
Standard Gas Train size is highlighted
Table A1-21 Standard Undersize and Oversize Gas Trains (Continued)
CBLE
BOILER HP GAS TRAINSIZE
UPSTREAMVALVE
DOWNSTREAMVALVE
EMISSIONS LEVEL 09 ppm 15 ppm 20 ppm 30 ppm 60 ppm UC
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
32
ALTITUDE(FT)
CORRECTIONFACTOR
ALTITUDE(FT)
CORRECTIONFACTOR
1000 104 6000 1252000 107 7000 130
3000 111 8000 135
4000 116 9000 140
5000 121 - -
To obtain minimum required gas pressure at altitudesabove 700 feet multiply the pressure by the listed factorsInches WC x 0577 = ozsq-inOzsq-in x 1732 = Inches WCInches WC x 00361= psigOzsq-in x 00625 = psigPsig x 2771 = Inches WCPsig x 160 = Ozsq-in
Table A1-22 Minimum Required Regulated Gas Pressure
Altitude Conversion
BOILERHP
TYPE OF GAS AND HEAT CONTENT
NATURAL GAS1000 (Btucu-ft)
PROPANE GAS2550 (Btucu-ft)
125 5103 2000
150 6124 2402
200 8165 3202
250 10206 4002
300 12247 4802
350 14280 5600
400 16329 6404
500 20415 8006
600 24494 9605
700 28576 11206
800 32659 12807
Table A1-23 Maximum Gas Consumption (CFH)
for Natural Gas and Propane Vapor
BOILER
HP
MODEL CB
CONNECTION SIZE
(IN NPT)
LOCATIONDIMENSION
ldquoArdquo (IN)
125-200 1-12 52
250-350 2 56
400 2 58
500 2-12 60
600 2-12 - 3 71
700-800 3 65
Figure A1-13 Standard Gas Train Connection Size and Location
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
33
Oil-Fired Burners Fuel oil consumption information is shown on the boiler rating sheets in theDimensions and Rating Section
Figure A1-16 shows the oil connection sizes and locations for Model CB Boilersfiring No 2 oil
Figure A1-17 through Figure A1-18 show typical oil systems and layouts
Figure A1-19 and Figure A1-20 show the detail of an oil transfer tank (day tank)typically utilized to provide a storage reservoir between the oil system supply pumpand the boiler oil pump
General BoilerInformation
Table A1-24 shows blowdown tank sizing information
Table A1-25 provides heating surface information
Table A1-26 provides steam volume and disengaging area information
Table A1-27 provides recommended steam nozzle sizes
Table A1-28 provides recommended non-return valve sizes
Boiler RoomInformation
Figure A1-21 shows typical boiler room length requirements
Figure A1-22 shows typical boiler room width requirements
Figure A1-23 shows typical breeching arrangements
Stack SupportCapabilities
All standard Cleaver-Brooks Firetube Boilers with an LE option can support up to2000 lbs without additional support
LE Boilers 250 hp through 800 hp can be reinforced to support 3000 lbs
StackBreechingSize Criteria
The design of the stack and breeching must provide the required draft at each boilerflue gas outlet Proper draft is critical to burner performance
Although constant pressure at the flue gas outlet of the Model CB-LE is not requiredit is necessary to size the stackbreeching to limit flue gas pressure variation Theallowable pressure range is ndash025 WC to +025 WC
For additional information please review Section I4 General Engineering Data(Stacks) and Section F Stacks Stack and breeching sizes should always be providedby a reputable stack supplier who will design the stack and breeching system basedon the above criteria Your local Cleaver-Brooks authorized representative is capableof assisting in your evaluation of the stackbreeching design
Boiler RoomCombustion Air
When determining boiler room air requirements the size of the room air flow andvelocity of air must be reviewed as follows
1 Size (area) and location of air supply openings in boiler room
A Two (2) permanent air supply openings in the outer walls of the boiler room
are recommended Locate (1) at each end of the boiler room preferablybelow a height of 7 feet This allows air to sweep the length of the boiler
B Air supply openings can be louvered for weather protection but they shouldnot be covered with fine mesh wire as this type of covering has poor air flowqualities and is subject to clogging by dust or dirt
C A vent fan in the boiler room is not recommended as it could create a slightvacuum under certain conditions and cause variations in the quantity ofcombustion air This can result in unsatisfactory burner performance
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
34
D Under no condition should the total area of the air supply openings be lessthan (1) square foot
E Size the openings by using the formulaArea (sq-ft) = CFMFPM
2 Amount of air required (cfm)
A Combustion Air = Rated bhp x 8 cfmbhp
B Ventilation Air = Maximum bhp x 2 cfmbhp
C Total recommended air = 10 cfmbhp - up to 1000 feet elevation Add 3percent more per 1000 feet of added elevation
3 Acceptable air velocity in Boiler Room (fpm)
A From floor to (7) foot height - 250 fpm
B Above (7) foot height - 500 fpm
Example Determine the area of the boiler room air supply openings for (1) 300 hpboiler at 800 feet altitude The air openings are to be 5 feet above floor level
bull Air required 300 x 10 = 3000 cfm (from 2B above)
bull Air velocity Up to 7 feet = 250 fpm (from 3 above)
bull Area Required Area = cfm = 3000250 = 12 sq-ft total
bull AreaOpening 122 = 6 sq-ftopening (2 required)
Notice
Consult local codes which may supersede these requirements
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 3543
Model CBLE 125-800 HP Boilers
35
This figure illustrates the basic gas valve arrangement on Cleaver-BrooksModel CB boiler and shows the contractors connection point The valves andcontrols between the contractor connection point and the gas main in thestreet are representative of a typical installation Actual requirements mayvary depending on local codes or local gas company requirements which
should be investigated prior to preparation of specifications and prior to con-struction
A Utilities service valveB Utilities service regulatorC Gas meterD Piping from meter to boiler
The size of the gas line from the meter to the gas pressure regulator at theboiler can be very important if gas pressures are marginal The gas line sizingis dependent on
1 Gas pressure at outlet of gas meter (C)2 Rate of gas flow required CFH3 Length of pipe run (D)4 Pressure required at contractor connection point
The local gas utility will advise the pressure that is available at the outlet oftheir meter
Figure A1-14 Typical Gas Piping Layout
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
36
5
6
S
1
3
42
PILOT GAS LINE
S
S
MAIN GAS LINE
M M
ToBurner
GasSupply
11
10
97
12138
14 15
FLOW
FLOW
Figure A1-15 Model CB-LE Gas Train Components
BOILER
HP
MODEL CB
SUPPLYANDRE-
TURNCONN SIZES
(IN)(NPT)
A(IN)
RECOMMENDED OIL LINEA
SIZES(STANDARD PIPE)
(IN - IPS)
STOR-AGE
TANK TOBOILER
OR PUMPCONNECT
PUMPTO
BOILER
RE-TURN
LINE TOTANK
125150 200
34 12-12 1 1 1
250300350
34 34 1 1 1
400500600
34 11-34 1 1 1
700800
1 11-34 1 1 1
NOTE See No 2 Oil Line Sizing Instruction for systems with other conditions A For suction line condition with a maximum of 10 Feet of lift and a
total of 100 feet of suction line
Figure A1-16 No2 Oil Connection Size Location and Recommended Line Sizes
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
37
Figure A1-17 No 2 Oil Piping Single Boiler
Installation Remote Oil Pump
Figure A1-18 No 2 Oil Piping Multiple Boiler
Installation Remote Oil Pumps
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
38
Figure A1-19 No 2 Oil Piping Multiple Boiler
Installation
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
39
Figure A1-20 No 2 Oil Piping Typical Arrangement
Table A1-24 Model CB-LE Blowdown
Tank Sizing
BOILER HP WATER (GAL)
125 97
150 118
200 145
250 146
300 176
350 210
400 177
500 209
600 250
700 800 296
NOTE Quantity of water removed from boiler by lowering normal water line 4
BOILER
HP
HEATING SURFACE (SQ-FT)
FIRESIDE WATERSIDE
125 625 679
150 750 820
200 1000 1092
250 1250 1346
300 1500 1623
350 1750 1932
400 2000 2151
500 2500 2691
600 3000 3262
700 800 3500 3810
Table A1-25 Heating Surface Model CB-LE
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
40
BOILER HPSTEAM VOLUME CU-FT
STEAM DISENGAGING AREASQ-IN
HIGH PRESSUREA LOW PRESSUREB HIGH PRESSUREA LOW PRESSUREB
125 254 366 5371 5887
150 307 443 6511 7138
200 377 544 7985 8752
250 492 706 7980 8695
300 595 853 9651 10516
350 709 1017 11507 12538
400 721 979 9793 10593
500 837 1137 11376 12303
600 1015 1378 13787 14911
700-800 1198 1627 16273 17600
NOTE Based on normal water levelA Based on 150 psig design pressureB Based on 15 psig design pressure
Table A1-26 Steam Volume and Disengaging Area
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Model CBLE 125-800 HP Boilers
41
BOILERHP
BOILERCAPACITY(LBSHR)
OPERATING PRESSURES (PSIG)
50 75 100 125 150 175 200 250
100 3450
2-12 2-12 NA NA NA NA NA NA
125 4313 3 2-12 2-12 2-12 NA NA NA NA
150 5175 3 3 2-12 2-12 2-12 2-12 NA NA
200 6900 3 3 3 3 3 2-12 2-12 2-12
250 8625 4 3 3 3 3 3 3 3
300 10350 4 4 4 3 3 3 3 3
350 12025 4 4 4 4 4 3 3 3
400 13800 5 4 4 4 4 4 4 3
500 17210 6 5 5 4 4 4 4 4
600 20700 6 6 5 5 5 4 4 4
700 24150 6 6 6 5 5 5 5 4
800 27600 6 6 6 6 6 5 5 5
NOTE Valve sizes (300 Flanges) given in inchesStandard Non-Return valve selections limited to a maximum 2 to 1 turndown(50 of full load) selections based on typical non-return valve sizing recommen-dations For final valve selection contact your C-B authorized representative Forhigh turndown applications see Boiler Book Section I3 Table I3-3 Indicates pressure drop of less than 75 psig All other selections are less than6 psig pressure drop
Boiler HP
OPERATINGPRESSURE
PSIG125 150 200 250 300 350 400 500 600 700 800
15 8 8 10 10 12 12 12 12 12 12 12
30 6 6 8 8 8 10 10 10 12 12 12
40 6 6 6 8 8 8 10 10 10 12 12
50 6 6 6 6 8 8 8 10 10 10 12
75 4 4 6 6 6 8 8 8 8 10 10
100 4 4 6 6 6 6 6 8 8 8 10
125 4 4 4 6 6 6 6 8 8 8 8
150 3 3 4 4 6 6 6 6 6 8 8
200 25 3 4 4 4 4 6 6 6 6 6
250 25 3 3 4 4 4 4 6 6 6 6
NOTES1 Steam nozzle sizes given in inches2 Recommended steam nozzle sizes based on 4000 to 5000 fpm steam velocity3 All standard steam nozzle sizes for 150 psig design pressure or greater are the sameas 125 psig operating pressure on the above table To increase or decrease the standardsize request the change with your local Cleaver-Brooks authorized representative4 Shaded area denotes special surge load baffles must be installed to avoid possible wa-ter carry-over5 For incremental operating pressures see Table I3-1 Steam Systems Fundamentals
Table A1-28 Recommended Steam Nozzle Size (for
4000 to 5000 fpm nozzle velocity)
Table A1-29 Recommended Non-Return Valve Size
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
42
1 Shortest boiler room length (Dwg A) is obtained by allowing for possible future tube replacement (from front or rearof boiler) through a window or doorway Allowance is only made for minimum door swing at each end of the boilerThis arrangement provides sufficient aisle space at the front of the boiler but a ldquotightrdquo space condition at the rear
If space permits approximately 15 additional feet should be allowed at the rear for additional aisle and workingspace
2 Next shortest boiler room length (Dwg B) is obtained by allowing for possible future tube replacement from thefront of the boiler Allowance is only made for minimum door swing at the rear
If space permits approximately 15 additional feet should be allowed at the rear for additional aisle and workingspace
3 A slightly longer boiler room (Dwg C) is obtained by allowing for possible future tube replacement from the rear ofthe boiler Allowance for door swing at the front provides sufficient aisle and working space at the front
Figure A1-21 Boiler Room Length (Typical Layouts)
BOILER HP 125-200 250-350 400-800
Dimension A 82 93 102
Dimension B 115 141 171
NOTES1 Recommended Minimum Distance Between Boiler and Wall Dimen-
sion ldquoArdquo allows for a ldquoclearrdquo 42 aisle between the water col-umn on the boiler and the wall If space permits this aisle
should be widened 2 Recommended Minimum Distance Between BoilersDimension ldquoBrdquo between boilers allows for a ldquoclearrdquo aisle of42 - 125 -200 hp48 - 250-350 hp60 - 400-800 hpIf space permits this aisle should be widened
Figure A1-22 Boiler Room Width (Typical Layout)
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
12
BOILER HP DIM 125 150 200
LENGTHS
Overall (60 ppm System) A 171-12 196-12 228-12
Shell B 125 149 180
Base Frame C 112 136 167
Front Head Extension (60 ppm System) D 27 28 29
Rear Head Extension E 19-12 19-12 19-12
Front Ring Flange to Outlet HH 114 136 167
Front Ring Flange to Return H 89 102 131
Ring Flange to Base F 12 12 12
Over Tubesheets V 113 137 168
Shell Extension P 12 12 12
Rear Flange Ring to Base G 12-12 12-12 12-12
Table A1-6 Model CB-LE Hot Water Boiler Dimensions
60rdquo (30 and 125 psig Design Pressure) - Sheet 1 of 2
Figure A1-4 CB-LE Hot Water - 125-200 HP
R
F G
WW
P
BB
D E
GG
Q
Z
Y T U
RR - RF - RD
X
HH
A
B
HI
L K
OO O
KK
M
N
EE
FF
DD
V
J
C
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 1343
Model CBLE 125-800 HP Boilers
13
BOILER HP DIM 125 150 200
WIDTHS
Overall I 75-12 75-12 75-12
ID Boiler J 60 60 60
Center to Entrance Box K 42-12 42-12 42-12
Center to Outside Hinge KK 35 35 35
Center to Lagging L 33 33 33
Base Outside M 52-12 52-12 52-12
Base Inside N 44-12 44-12 44-12
HEIGHTS
Overall OO 87 87 87
Base to Vent Outlet O 87 87 87
Base to Return and Outlet X 82-38 82-38 82-38
Height of Base Q 12 12 12
Base to Bottom of Boiler R 16 16 16
BOILER CONNECTION
Auxiliary Connection Z 1 1 1
Water Return Flange T 6A 6A 6A
Water Outlet Flange (2 Dip Tube Included) U 6A 6A 6A
Drain Front and Rear W 1-12 1-12 2
Air Vent Y 1-12 1-12 1-12
VENT STACK
Diameter (flgd connection) BB 16 16 16
MINIMUM CLEARANCES
Rear Door Swing DD 32 32 32
Front Door Swing EE 67 67 67
Tube Removal Rear FF 115 139 170Tube Removal Front GG 103 127 158
MINIMUM BOILER ROOM LENGTH ALLOWING FOR DOOR SWING AND TUBE REMOVAL FROM
Rear of Boiler RR 307 355 417
Front of Boiler RF 260 308 370
Thru Window or Doorway RD 224 248 279
WEIGHT IN LBS
Water Capacity Flooded 7670 9295 11130
Approx Ship Wgt ndash 30 psigApprox Ship Wgt ndash 125 psig
1140011800
1250012900
1450014900
NOTES All connections are threaded unless indicatedA ANSI 150 psig flange
Table A1-6 Model CB-LE Hot Water Boiler Dimensions
60rdquo (30 and 125 psig Design Pressure) - Sheet 2 of 2
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 1443
Model CBLE 125-800 HP Boilers
14
BOILER HP DIM 250 300 350
LENGTHS
Overall (60 ppm System) A 191-12 220 252
Shell B 144 171 201
Base Frame C 131 158 188
Front Head Extension (60 ppm System) D 23-12 25 27
Rear Head Extension E 24 24 24
Front Ring Flange to Return H 103-12 130 160
Front Ring Flange to Outlet HH 131 158 188
Ring Flange to Base F 12 12 12
Over Tubesheets V 129 156 186
Shell Extension P 15 15 15
Rear Flange Ring to Base G 12-12 12-12 12-12
Table A1-7 Model CB-LE Hot Water Boiler Dimensions78rdquo (30 and 125 psig Design Pressure) - Sheet 1 of 2
Figure A1-5 CB-LE Hot Water 250-350 HP
s k o o r B r e v a
e l C
R
F G
WW
P
BB
D E
GG
Q
Z
Y T U
RR - RF - RD
X
HH
A
B
HI
L K
OOO
KK
M
N
EE
FF
DD
V
J
C
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 1543
Model CBLE 125-800 HP Boilers
15
BOILER HP DIM 250 300 350
WIDTHS
Overall I 93 93 93
ID Boiler J 78 78 78
Center to Entrance Box K 51 51 51
Center to Outside Hinge KK 51 51 51
Center to Lagging L 42 42 42
Base Outside M 64 64 64
Base Inside N 52 52 52
HEIGHTS
Overall OO 115 115 115
Base to Vent Outlet O 106 106 106
Base to Return and Outlet X 101-12 101-12 101-12
Height of Base Q 10 10 10
Base to Bottom of Boiler R 17 17 17
BOILER CONNECTION
Auxiliary Connection Z 1-14 1-14 1-14
Water Return Flange (2 Dip Tube included) T 8A 8A 8A
Water Outlet Flange (2 Dip Tube Included) U 8A 8A 8A
Air Vent Y 1-12 1-12 1-12
Drain Front and Rear W 2 2 2
VENT STACK
Diameter (flgd connection) BB 20 20 20
MINIMUM CLEARANCES
Rear Door Swing DD 43 43 43
Front Door Swing EE 89 89 89
Tube Removal Rear FF 131 157 187
Tube Removal Front GG 116 142 172
MINIMUM BOILER ROOM LENGTH ALLOWING FOR DOOR SWING AND TUBE REMOVAL FROM
Rear of Boiler RR 364 417 477
Front of Boiler RF 303 356 416
Thru Window or Doorway RD 275 302 332
WEIGHT IN LBS
Water Capacity Flooded 13880 16840 20090
Approx Ship Wgt ndash 30 psigApprox Ship Wgt ndash 125 psig
2140022200
2350024300
2670027500
NOTES All connections are threaded unless indictedA ANSI 150 psig flange
Table A1-7 Model CB-LE Hot Water Boiler Dimensions
78rdquo (30 and 125 psig Design Pressure) - Sheet 2 of 2
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 1643
Model CBLE 125-800 HP Boilers
16
BOILER HP DIM 400 500 600 700 800
LENGTHS
Overall (60 ppm System) A 206 228 262 299 300
Shell B 147 168 200 233 233
Base Frame C 134 155 187 220 220
Front Head Extension (60 ppm System) D 27 28 30 34 35
Rear Head Extension E 32 32 32 32 32
Shell Ring Flange to Base F 12 12 12 12 12
Rear Ring Flange to Base G 12-12 12-12 12-12 12-12 12-12
Shell Flange to Outlet HH 139-12 156-12 182-12 216-12 216-12
Shell Flange to Return H 107 125 151-12 185 185
Over Tubesheets V 130 151 183 216 216
Shell Extension P 17 17 17 17 17
Table A1-8 Model CB-LE Hot Water Boiler Dimensions96rdquo (30 and 125 psig Design Pressure) - Sheet 1 of 2
Figure A1-6 CB-LE Hot Water 400-800 HP
s k o o r B r e v a
e l C
R
F G
WW
P
BB
D E
GG
Q
Z
Y T U
RR - RF - RD
X
HH
A
B
HI
L K
OOO
KK
M
N
EE
FF
DD
V
J
C
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 1743
Model CBLE 125-800 HP Boilers
17
WIDTHS
Overall I 113 113 113 113 115
ID Boiler J 96 96 96 96 96
Center to Entrance Box K 62 62 62 62 64
Center to Outside Hinge KK 62 62 62 62 62
Center to Lagging L 51 51 51 51 51
Base Outside M 72 72 72 72 72
Base Inside N 56 56 56 56 56
HEIGHTS
Overall OO 134 134 134 134 134
Base to Vent Outlet O 126 126 126 126 126
Height of Base Q 12 12 12 12 12
Base to Bottom of Boiler R 19 19 19 19 19
Base to Return and Outlet X 121-916 121-916 121-916 121-916 121-916
BOILER CONNECTIONS
Auxiliary Connection Z 1-14 1-14 1-14 1-14 1-14
Drain Front and Rear W 2 2 2 2 2
Water Return T 10A 10A 12A 12A 12A
Water Outlet (2rdquo Dip Tube Included) U 10A 10A 12A 12A 12A
Air Vent Y 2 2 2 2 2
VENT STACK
Diameter (Flanged Connection) BB 24 24 24 24 24
MINIMUM CLEARANCES
Rear Door Swing DD 53 53 53 53 53
Front Door Swing EE 108 108 108 108 108
Tube Removal Rear FF 131 152 184 217 217
Tube Removal Front GG 114 135 167 200 200
MINIMUM BOILER ROOM LENGTH ALLOWING FOR DOOR SWING AND TUBE REMOVAL FROM
Rear of Boiler RR 386 428 492 558 558
Front of Boiler RF 314 356 420 486 486
Thru Window or Doorway RD 308 329 361 394 394
WEIGHT IN LBS
Normal Water Capacity 20015 23300 28260 33360 33360
Approx Ship Wgt ndash 30 psig
Approx Ship Wgt ndash 125 psig
33300
37270
36900
40780
42150
46005
49650
53300
49750
53400
NOTES All connections are threaded unless indicated
A ANSI 150 psig flange
BOILER HP DIM 400 500 600 700 800
Table A1-8 Model CB-LE Hot Water Boiler Dimensions
96rdquo (30 and 125 psig Design Pressure) - Sheet 2 of 2
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
18
BOILER HP
MOTOR HP
60PPM
30PPM
25PPM
20PPM
125 5 10 5 10
150 75 10 10 10
200 15 15 20 NA
250 75 10 15 15
300 10 15 20 30
350 15 25 40 40
400 10 15 20 20
500 15 20 25 30
600 25 30 50 60
700 30 50 75 75
800 50 75 NA NA
NOTES For elevations above 700rsquo - contact your local
Cleaver-Brooks authorized representative
Table A1-9 Model CB-LE Blower Motor Selection -
Operating Pressures 150 psig and Less and All Hot
Water Boilers
BOILER HP
MOTOR HP
60
PPM
30
PPM
25
PPM
20
PPM
125 5 10 10 10
150 10 10 10 15
200 15 20 20 NA
250 75 10 15 20
300 10 20 30 40
350 20 30 40 50
400 10 15 20 25
500 20 25 30 40
600 25 40 60 60
700 40 60 75B 75C
800 60 75A NA NA
NOTES For elevation above 700rsquo - contact your local
Cleaver-Brooks authorized representative
A Downrate to 770 hp
B Downrate to 675 hp
C Downrate to 660 hp
Table A1-10 Model CB-LE Blower Motor Selection -
Operating Pressures Greater than 150 psig (Steam
Boilers)
09-09
Table A1-11 Blower Motor Selection CB-LE NTI BoilersTable A1-12 Turndown Guarantee for CB-LE NTI
Boilers - Natural Gas amp 2 Oil
Boiler SizeTurndown
9 ppm 15 ppm
125 41 41
150 41 51
200 41 51
250 51 51
300 51 51
350 51 51
400 51 61
500 51 61
600 61 61
700 71 71
800 71 71
800 HP to be derated to 720 HP for 9 ppm and 750 HP
for 15 ppm
Altitude 700 ft and less - Design Pressure 150 psi and less
800 HP - to be de-rated to 720 HP for 9 ppm and to 750 HP for 15 ppm
mpp9mpp51Nominal
Boiler Size Blower Motor HP Blower Motor HP
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Model CBLE 125-800 HP Boilers
19
BOILER HPFUEL
SERIES
HOT WATER STEAM
30 PSIG 125 PSIG 15 PSIG 150 PSIG 200 PSIG
125100 11200 11600 11300 12000 12600200 11400 11800 11500 12400 13000
700 11300 11700 11400 12300 12900
150
100 12300 12700 12400 13200 13900
200 12500 12900 12600 13500 14200
700 12300 12700 12400 13300 14000
200
100 14400 14800 14500 15500 16300
200 14500 14900 14600 15600 16400
700 14500 14900 14600 15600 16400
250
100 20700 21500 20800 22000 23800
200 21400 22200 21500 22800 24600
700 20900 21700 21000 22500 24300
300
100 23100 23900 23200 24800 26800
200 23500 24300 23600 25200 27200
700 23400 24200 23500 25000 27000
350
100 26200 27000 26300 27600 29100
200 26700 27500 26800 27800 29300
700 26400 27200 26500 27700 29200
400
100 33000 36970 33200 36270 39380
200 33300 37270 33500 36570 39680
700 33200 37170 33400 36470 39580
500
100 36600 40470 36810 39670 43480
200 36900 40780 37110 39970 43580
700 36800 40680 37010 39870 43280
600
100 41850 45905 42000 44725 49100
200 42150 46005 42300 45025 49400
700 42050 45915 42200 44925 49300
700800
100 49450 53000 49300 51850 57015
200 49750 53300 49600 52150 57315
700 49650 53200 49500 52050 57215
NOTES1 Weights shown are based on standard product offering for current listed boilers If units are of special design and construction actual weightwill be determined at time of shipment Shipment will then be made on shippers weight and count All weights are in US pounds
Table A1-13 Model CB-LE Boiler Weights
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Model CBLE 125-800 HP Boilers
20
VALVE
SETTING15 PSIG STEAM 100 PSIG STEAM 125 PSIG STEAM 150 PSIG STEAM 200 PSIG STEAM 250 PSIG STEAM 300 PSIG STEAM
BOILERHP
NO OF
VALVES-REQD
OUTLET
SIZE(IN)
NO OF
VALVES-REQD
OUTLET
SIZE(IN)
NO OF
VALVESREQD
OUTLET
SIZE(IN)
NO OF
VALVES-REQD
OUTLET
SIZE(IN)
NO OF
VALVES-REQD
OUTLET
SIZE(IN)
NO OF
VALVESREQD
OUTLET
SIZE(IN)
NO OF
VALVESREQD
OUTLET
SIZE(IN)
125 1 3 2 1-12 2(1) 1-12(1) 1-14
2(1) 1-12(1) 1-14
2(1) 1-14(1) 1
2 1 2 1
150 1 3 2(1) 2(1) 1-12
2 1-14 2(1) 1-12(1) 1-14
2(1) 1(1) 1-14
2 1 2 1
200 2 2-12 2 2 2 1-12 2 1-12 2(1) 1-12(1) 1-14
2 1-14 2(1) 1(1) 1-14
250 2(1) 2-12(1) 3
2(1) 2-12(1) 2
2(1)2(1)1-12
2(1) 2(1) 1-12
2(1)1-12(1)1-14
2(1) 1-12(1) 1-14
2 1-14
300 2 3 2(1) 2-12(1) 2
2 2 2(1) 2(1) 1-12
2 1-12 2(1)1-12(1)1-14
2(1) 1-12(1) 1-14
350 3(1) 2(2) 3
3(1) 2-12(2) 2
2(1)2(1)1-12
2 2 2(1) 1-12(1) 2
2 1-12 2(1) 1-12(1) 1-14
400 3(2) 3(1) 2-12
3(1) 2(2) 2-12
2(1)2(1)2-12
2(1) 2-12(1) 2
2(1) 1-12(1) 2
2(1) 2(1) 1-12
2 1-12
500 3 (3) 3 3 2-12 2 2-12 2(1) 2-12(1) 2
2(1) 2(1) 2-12
2(1) 2(1)1-12
2(1) 1-12(1) 2
600 4 3 4(3) 2-12(1) 2
3 2-12 2 2-12 2(1) 2(1) 2-12
2 2 2 2
700 5(3) 3(2) 2-12
5(3) 2-12(2) 2
3 2-12 3(2) 2-12(1) 2
2 2-12 2(1) 2(1) 2-12
2 2
800 5(3) 3(2) 2-12
5(3) 2-12(2) 2
4(3) 2-12(1) 2
3(2) 2-12(1) 2
2 2-12 2(1) 2(1) 2-12
2(1) 2(1) 2-12
NOTES Valve manufacturers are Kunkle Consolidated or Conbraco depending on availability This table revised 042012
Table A1-14 Steam Boiler Safety Valve Openings
VALVE
SETTING 30 PSIG HW 60 PSIG HW 100 PSIG HW 125 PSIG HW
BOILER HPNO OF
VALVESREQD
OUTLETSIZE(IN)
NO OFVALVESREQD
OUTLETSIZE(IN)
NO OFVALVESREQD
OUTLETSIZE(IN)
NO OFVALVESREQD
OUTLETSIZE(IN)
125 1 2-12 1 2 1 2 1 1-14
150 1 2-12 1 2-12 1 2 1 2
200 2(1) 2-12(1) 1-14
1 2-12 1 2 1 2
250 2 (1) 2(1) 2-12
1 2-12 1 2-12 1 2
300 2 2-12 2(1) 1(1) 2-12
1 2-12 1 2-12
350 3(2) 2-12(1) 1
2(1) 2-12(1) 2
1 2-12 1 2-12
400 3 (1) 2(2) 2-12 2 (1) 2(2) 2-12 2 (1) 1(1) 2-12 1 2-12
500 4 (1) 1(3) 2-12
2 2-12 2(1) 2-12(1) 1-14
2(1) 1(1) 2-12
600 4(3) 2-12(1) 2
3(1) 1-1(2) 2-12
2(1) 2(1) 2-12
2(1) 2-12(1) 1-14
700 amp 800 5 (1) 1(4) 2-12
3(1) 2(2) 2-12
2 2-12 2(1) 2-12(1) 2
NOTES Hot water relief valves are Kunkle 537
Table A1-15 Hot Water Boiler Relief Valve Openings
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Model CBLE 125-800 HP Boilers
21
BOILER HP A B C D E F G X1 X2 X3
125 6 9 112 39-12 57-12 4 44-12 10 9-34 22-12
150 6 9 136 39-12 57-12 4 44-12 10 9-34 22-12
200 6 9 167 39-12 57-12 4 44-12 10 9-34 22-12
250 6 12 131 46 70 4 56 10 22 22-12
300 6 12 158 46 70 4 56 10 22 22-12
350 6 12 188 46 70 4 56 10 22 22-12
NOTE
All numbers in table are in inches
6-inch high mounting piers recommended for use beneath the boiler base frame The use of these piers provides increased inspection
accessibility to the piping beneath the boiler and added height for washing down the area beneath the boiler
Figure A1-7 Space Required to Open Rear Head on Model CB-LE Boilers Equipped with Davits
BOILER HPDIMENSIONS (INCHES)
A B C D E
CB-125 THRU CB-200 33 55 45 68 32
CB-250 THRU CB-350 42 69 58 86 43
CB-400 THRU CB-800 51 88 71 109 53
Figure A1-8 Model CB-LE Boiler Mounting Piers (60rdquo and 78rdquo)
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Model CBLE 125-800 HP Boilers
22
BOILER HP A B C D E F G
400 6 14 134 50 78 6-12 58-78
500 6 14 155 50 78 6-12 58-78
600 6 14 187 50 78 6-12 58-78
700-800 6 14 220 50 78 6-12 58-78
NOTE1 All numbers in table are in inches2 6-inch high mounting piers recommended for use beneath the boiler base frame The use of these piers provides in-
creased inspection accessibility to the piping beneath the boiler and added height for washing down the area beneaththe boiler
Figure A1-9 Model CB-LE Boiler Mounting Piers (96rdquo)
CBLE 250-350HP
CBLE 400-800HP
Motor HP Hole Number
75 1
15 1
25 2
40 3
Motor HP Hole Number
10 1
20 1
30 250 2
75 3
Figure A1-10 Front Davit Support
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Model CBLE 125-800 HP Boilers
23
BOILERHP
VIEW
ALL DIMENSIONS IN INCHES
A B C D E
125 All B 80-14 29-34 70-12 10 3
150 All B 80-14 29-34 83-12 10 3
200 All B 80-14 29-34 114-12 10 3
250Steam B 99 36 72 10 3
Hot Water B 99 36 81 10 3
300
Steam B 99 36 99 10 3
Hot Water B 99 36 108 10 3
350Steam B 99 36 129 10 3
Hot Water B 99 36 138 10 3
400Steam B 119 35-34 78 11 3
Hot Water B 119 35-34 78 11 3
500Steam B 119 35-34 99 11 3
Hot Water B 119 35-34 99 11 3
600Steam B 119 35-34 131 11 3
Hot Water B 119 35-34 131 11 3
700 amp 800Steam B 119 35-34 164 11 3
Hot Water B 119 35-34 164 11 3
NOTE A B and C dimensions may vary by 12 inch
Figure A1-11 Lifting Lug Location Model CB-LE Boilers
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Model CBLE 125-800 HP Boilers
24
PERFORMANCE DATA
The Low Emission Option provides NOx reduction at current published andpredicted fuel-to-steam efficiencies
Specifying BoilerEfficiency
Cleaver-Brooks offers an industry leading fuel-to-steam boiler efficiency guaranteefor Model CB-LE Firetube Boilers The guarantee is based on the fuel-to-steam
efficiencies shown in the efficiency tables and the following conditions Theefficiency percent number is only meaningful if the specific conditions of theefficiency calculations are clearly stated in the specification (see Cleaver-Brookspublication CB-7768 for a detailed description of efficiency calculations)
When specifying the efficiencies in the tables be sure to include the specificguarantee conditions to maximize the effectiveness of your efficiency specification Ifyou have any questions regarding the efficiency specifications please contact yourlocal Cleaver-Brooks authorized representative
EfficiencySpecification
The boiler manufacturer shall guarantee that at the time of startup the boiler willachieve fuel-to-steam efficiency (as shown in Table A1-16 and Table A1-17) at100 firing rate (add efficiency guarantees at 25 50 and 75 of rating if
required) If the boiler(s) fail to achieve the corresponding guaranteed efficiency aspublished the boiler manufacturer will rebate to the ultimate boiler owner tenthousand dollars ($10000) for every full efficiency point (10) that the actualefficiency is below the guaranteed level
The specified boiler efficiency is based on the following conditions
1 Fuel specification used to determine boiler efficiency
bull Natural Gas
Carbon (wt) = 6998Hydrogen (wt) = 2231Sulfur (wt) = 00
Heating value Btulb = 21830bull No 2 Oil
Carbon (wt) = 858Hydrogen (wt) = 127Sulfur (wt) = 02Heating value Btulb = 19420
No 6 Oil
Carbon (wt) = 866Hydrogen (wt) = 109Sulfur (wt) = 209Heating value Btulb = 18830
2 Efficiencies are based on ambient air temperature of 80 degF relative humidity of30 and 15 excess air in the exhaust flue gas
3 Efficiencies are based on manufacturerrsquos published radiation and convectionlosses (For Cleaver-Brooks radiation and convection losses see BoilerEfficiency Facts Guide publication number CB-7767)
4 Any efficiency verification testing will be based on the stack loss method
For efficiencies and stack temperatures at operating pressures not listed followthese procedures
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Model CBLE 125-800 HP Boilers
25
When the operating steam pressure is between 10 psig and 125 psig interpolatethe values from the efficiency tables
When the operating steam pressure is above 125 psig estimated efficiency can becalculated as follows
Example
Boiler 350 hpFuel natural gas
Operating steam pressure 200 psig
Find the fuel-to-steam efficiency at 100 firing rate From Table A1-16 for a 350hp boiler operating at 100 firing rate and an operating steam pressure of 125psig the efficiency is 825
Using Figure A1-12 note that the stack temperature increases 36 degF at the higheroperating pressure To estimate boiler efficiency use this rule of thumb For every40 degF increase in stack temperature efficiency decreases by 1 Since the stacktemperature rise is 36 degF the decrease in the boiler efficiency at 200 psig operatingpressure is calculated as follows 3640 =9 Therefore the boiler efficiency at200 psig operating pressure is 825 -9 = 816
Emissions The emission data included in this section consists of typical emission levels forModel CB boilers equipped with 60 30 25 and 20 ppm LE Options when firingnatural gas and No 2 oil
Notice
The data in Table A1-18 and Table A1-19 represent typical emission levels only
Guaranteed emission levels are available from your local Cleaver-Brooks authorized
representative
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Model CBLE 125-800 HP Boilers
26
BOILER
HP
OPERATING PRESSURE = 10 psig OPERATING PRESSURE = 125 psig
OF LOAD OF LOAD
25 50 75 100 25 50 75 100
125 833 836 834 832 804 809 810 810
150 844 846 845 843 815 820 820 821
200 850 853 851 849 822 827 827 827
250 850 847 840 833 820 820 816 813
300 853 853 846 839 826 827 822 819
350 853 857 852 845 826 832 828 825
400 845 847 846 844 818 822 824 822
500 855 857 855 852 828 832 833 831
600 857 860 858 856 829 835 836 835
700 857 862 860 857 830 836 836 836
800 858 861 859 856 831 836 837 835
Table A1-16 Predicted Fuel-to-Steam Efficiencies - Natural Gas
Figure A1-12 Predicted Stack Temperature Increase for Pressure Greater Than 125 psig
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Model CBLE 125-800 HP Boilers
27
Table A1-18 CB-LE Boilers - Natural Gas Emission Levels
POLLUTANT
ESTIMATED LEVEL
60 ppm 30 ppm 25 ppm 20 ppm 15 ppm 9 ppm
CO ppmA
lbMMBtu
50150B
004011
50150B
004011
50150B
004011
50150B
004011
50
004
50
004
NOx ppmA
lbMMBtu
60
007
30
0035
25
003
20
0024
15
0018
9
0011
SOx ppmA
lbMMBtu
1
0001
1
0001
1
0001
1
0001
1
0001
1
0001
HCVOC5 ppmA
lbMMBtu
10
0004
10
0004
10
0004
10
0004
10
0004
10
0004
PM ppmA
lbMMBtu
-
001
-
001
-
001
-
001
-
001
-
001
A ppm levels are given on a dry volume basis and corrected to 3 oxygen (15 excess air)
B CO emission for 60 30 25 amp 20 ppm system is 50 ppm (004 lbMMBtu) when boiler is operating above 50 of rated capacity
CO emission is 150 ppm (011 lbMMBtu) when boiler is operating below 50 of rated capacity
Table A1-17 Predicted Fuel-to-Steam Efficiencies - No 2 Oil
BOILER
HP
OPERATING PRESSURE = 10 psig OPERATING PRESSURE = 125 psig
OF LOAD OF LOAD
25 50 75 100 25 50 75 100
125 867 869 867 866 837 842 843 843
150 878 880 878 876 848 853 853 854
200 884 887 884 882 856 860 860 860
250 883 881 874 867 853 853 849 847
300 886 887 880 873 859 860 855 852
350 886 890 885 878 859 866 861 858
400 879 881 879 876 851 855 856 855
500 889 890 889 886 861 865 866 864
600 890 894 892 890 862 868 869 868
700 891 895 893 891 863 869 870 869
800 892 895 893 890 864 869 870 868
Table A1-19 CB-LE Boilers - No 2 Oil Emission Levels
POLLUTANTESTIMATED LEVEL
60 ppm LE Option 30 25 20 ppm LE Option 15 ppm 9 ppm
CO ppmA
lbMMBtu
50
0039
50
0039
50
0039
50
0039
NOx ppmA
lbMMBtu140
018690
012085
011370
0093
SOx ppmA
lbMMBtu
278
052
278
052
278
052
278
052
HCVOCs ppmA
lbMMBtu
4
0002
4
0002
4
0002
4
0002
PM ppmA
lbMMBtu
-
0025
-
0025
-
0025
-
0025
A ppm levels are given on a dry volume basis and corrected to 3 oxygen (15 excess air)
BASED ON THE FOLLOWING CONSTITUENT LEVELS
Fuel-bound Nitrogen content = 0015 by weight
Sulfur content = 05 by weight
Ash content = 001 by weight
09-09
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Model CBLE 125-800 HP Boilers
28
ENGINEERING DATA
Sound Level Table A1-20 gives a summary of predicted sound pressure levels for Model CBboilers with 30 ppm LE Options Contact your local Cleaver-Brooks authorizedrepresentative for sound levels or other LE Options
Units - The units for the sound level tables are dbA (decibels measured on the A-weighted scale) in reference to 00002 microbars (20 micro-Newtons per square
meter) Their reference are standardly used in specifying and reporting soundpressure levels on industrial equipment
Test Method - The sound pressure levels in the above tables were obtained fromtests in accordance with the ldquoABMA Test Code for the Measurement of Sound fromPackaged Boilersrdquo In accordance with this code the sound pressure levels reportedwere measured on the boiler centerline 4-12 feet vertically above the bottom of thebase rails and 3 feet horizontally in front of the end of the blower motor or frontsurface of the electrical cabinet
Sound Level Meter - The sound level meter used complies with ANSI S14 Type 1(Precision) The readings are taken with the meter set for slow response andcorrected for background levels
Sound Pressure - The large size boilers the need for auxiliary equipment and thenecessary interconnecting piping make it impractical (and sometimes impossible) toprovide a boiler testing environment which is suitable for taking the data needed todevelop Sound Pressure Power levels
Typical Values - Sound pressure levels (dbA) for the same boiler will vary betweenboiler rooms Sound levels will vary with motor type NOx levels and altitudes Inaddition variations will occur between different people using different sound meterson the same boiler And finally no two boilers can be expected to give precisely thesame sound levels For these reasons we can only predict but not guarantee soundlevels (dbA)
BOILER HP 125 150 200 250 300 350 400 500 600 700 800
HFO dbA 84 84 84 83 84 85 84 85 85 88 90
LFO dbA 82 82 83 81 82 83 82 83 83 84 89
HFG dbA 82 82 83 82 83 84 83 83 85 87 90
LFG dbA 81 81 82 81 82 83 81 81 82 84 88
NOTES1 Sound pressure levels measured on boilers operating in various locations and ex-
pressed in dbA are as shown2 Based on standard altitude fans and fan motors 60 Hz3 Contact your local Cleaver-Brooks authorized representative for sound levels of 60 25or 20 ppm LE Options
ABBREVIATIONS
HF = High Fire LF = Low Fire O = Oil G = Gas
Table A1-20 Model CBLE Predicted Sound Levels 30 ppm NOx Systemss
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Model CBLE 125-800 HP Boilers
29
Gas-Fired Burners Table A1-21 shows gas pressure with standard over- and undersized gas trains
Table A1-22 shows minimum required gas pressure altitude conversion
Figure A1-13 shows standard gas train sizes and locations for Model CB FiretubeBoilers
Figure A1-14 shows typical gas train piping layouts for multiple boiler applications
Figure A1-15 shows standard gas train components
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Model CBLE 125-800 HP Boilers
30
Table A1-21 Standard Undersize and Oversize Gas Trains
CBLE
BOILER HP GAS TRAINSIZE
UPSTREAMVALVE
DOWNSTREAMVALVE
EMISSIONS LEVEL 09 ppm 15 ppm 20 ppm 30 ppm 60 ppm UC
125 HP 15 in BB BB 33 - 49 psi 33 - 49 psi 08 - 50 psi 07 - 50 psi 07 - 50 psi 07 - 50 ps
125 HP 15 in PC PC 34 - 50 psi 34 - 50 psi 09 - 50 psi 08 - 50 psi 08 - 50 psi 08 - 50 ps
125 HP 20 in BB BB 31 - 33 psi 31 - 33 psi 06 - 08 psi 06 - 07 psi 05 - 07 psi 05 - 07 ps
125 HP 20 in PC PC 31 - 34 psi 31 - 34 psi 06 - 09 psi 06 - 08 psi 06 - 08 psi 05 - 08 ps
125 HP 25 in PC PC 30 - 31 psi 30 - 31 psi 04 - 06 psi 04 - 06 psi 04 - 05 psi 04 - 05 ps
125 HP 30 in PC PC 29 - 30 psi 29 - 30 psi 04 - 04 psi 04 - 04 psi 04 - 04 psi 03 - 04 ps
125 HP 40 in PC PC 29 - 29 psi 29 - 29 psi 04 - 04 psi 03 - 04 psi 03 - 04 psi 03 - 03 ps
150 HP 15 in BB BB 37 - 55 psi 39 - 58 psi 10 - 47 psi 09 - 50 psi 09 - 50 psi 09 - 50 ps
150 HP 15 in PC PC 38 - 57 psi 40 - 60 psi 11 - 42 psi 11 - 50 psi 10 - 50 psi 10 - 50 ps
150 HP 20 in BB BB 34 - 37 psi 36 - 39 psi 07 - 10 psi 06 - 09 psi 06 - 09 psi 06 - 09 ps
150 HP 20 in PC PC 34 - 38 psi 36 - 40 psi 07 - 11 psi 07 - 11 psi 07 - 10 psi 06 - 10 ps
150 HP 25 in PC PC 32 - 34 psi 34 - 36 psi 05 - 07 psi 04 - 06 psi 04 - 06 psi 04 - 06 ps
150 HP 30 in PC PC 32 - 32 psi 34 - 34 psi 04 - 05 psi 04 - 04 psi 04 - 04 psi 03 - 04 ps
150 HP 40 in PC PC 31 - 32 psi 33 - 34 psi 04 - 04 psi 03 - 04 psi 03 - 04 psi 03 - 03 ps
200 HP 15 in BB BB 46 - 69 psi 50 - 75 psi 16 - 50 psi 15 - 50 psi 15 - 50 ps
200 HP 15 in PC PC 48 - 72 psi 52 - 78 psi 18 - 50 psi 17 - 50 psi 17 - 50 ps
200 HP 20 in BB BB 41 - 46 psi 45 - 50 psi 10 - 16 psi 10 - 15 psi 10 - 15 ps
200 HP 20 in PC PC 41 - 48 psi 45 - 52 psi 11 - 18 psi 11 - 17 psi 10 - 17 ps
200 HP 25 in PC PC 38 - 41 psi 42 - 45 psi 07 - 10 psi 07 - 10 psi 06 - 10 ps
200 HP 30 in PC PC 36 - 38 psi 40 - 42 psi 06 - 07 psi 05 - 07 psi 05 - 06 ps
200 HP 40 in PC PC 36 - 36 psi 40 - 40 psi 05 - 06 psi 05 - 05 psi 04 - 05 ps
250 HP 15 in BB BB 41 - 62 psi 44 - 67 psi 24 - 50 psi 24 - 27 psi 24 - 26 psi 23 - 26 ps
250 HP 15 in PC PC 45 - 67 psi 48 - 72 psi 28 - 50 psi 27 - 28 psi 27 - 27 psi 27 - 27 ps
250 HP 20 in BB BB 33 - 38 psi 37 - 41 psi 16 - 24 psi 16 - 24 psi 16 - 24 psi 15 - 23 ps
250 HP 20 in PC PC 34 - 40 psi 37 - 43 psi 17 - 28 psi 17 - 27 psi 16 - 27 psi 16 - 27 ps
250 HP 25 in PC PC 29 - 33 psi 32 - 37 psi 11 - 16 psi 11 - 16 psi 11 - 16 psi 10 - 15 ps
250 HP 30 in PC PC 27 - 29 psi 31 - 32 psi 09 - 11 psi 09 - 11 psi 09 - 11 psi 09 - 10 ps
250 HP 40 in PC PC 26 - 27 psi 29 - 31 psi 08 - 09 psi 08 - 09 psi 08 - 09 psi 08 - 09 ps
300 HP 15 in - 20 in BB BB 55 - 83 psi 57 - 85 psi 30 - 50 psi 30 - 36 psi 30 - 35 psi 30 - 35 ps
300 HP 15 in - 20 in PC PC 58 - 87 psi 60 - 90 psi 33 - 50 psi 33 - 37 psi 33 - 36 psi 33 - 36 ps
300 HP 20 in BB BB 46 - 55 psi 47 - 57 psi 21 - 30 psi 21 - 30 psi 20 - 30 psi 20 - 30 ps
300 HP 20 in PC PC 47 - 58 psi 48 - 60 psi 22 - 33 psi 22 - 33 psi 21 - 33 psi 21 - 33 ps
300 HP 30 in PC PC 39 - 46 psi 40 - 47 psi 13 - 21 psi 13 - 21 psi 12 - 20 psi 12 - 20 ps
300 HP 40 in PC PC 37 - 39 psi 39 - 40 psi 11 - 13 psi 11 - 13 psi 10 - 12 psi 10 - 12 ps
350 HP 15 in - 20 in BB BB 64 - 90 psi 62 - 90 psi 42 - 50 psi 42 - 50 psi 41 - 50 psi 41 - 50 ps
350 HP 15 in - 20 in PC PC 68 - 90 psi 66 - 90 psi 46 - 50 psi 46 - 50 psi 45 - 50 psi 45 - 50 ps
350 HP 20 in BB BB 54 - 64 psi 53 - 62 psi 32 - 42 psi 32 - 42 psi 32 - 41 psi 31 - 41 ps
350 HP 20 in PC PC 56 - 68 psi 54 - 66 psi 34 - 46 psi 34 - 46 psi 33 - 45 psi 33 - 45 ps
350 HP 25 in PC PC 43 - 54 psi 42 - 53 psi 21 - 32 psi 21 - 32 psi 20 - 32 psi 20 - 31 ps
350 HP 30 in PC PC 40 - 43 psi 38 - 42 psi 17 - 21 psi 17 - 21 psi 17 - 20 psi 16 - 20 ps
350 HP 40 in PC PC 37 - 40 psi 36 - 38 psi 15 - 17 psi 15 - 17 psi 14 - 17 psi 14 - 16 ps
400 HP 15 in - 20 in BB BB 69 - 90 psi 69 - 90 psi 46 - 50 psi 46 - 50 psi 45 - 50 psi 45 - 50 ps
400 HP 15 in - 20 in PC PC 74 - 90 psi 75 - 90 psi 51 - 87 psi 51 - 77 psi 51 - 77 psi 51 - 77 ps
400 HP 20 in BB BB 55 - 69 psi 56 - 69 psi 32 - 46 psi 32 - 46 psi 32 - 45 psi 32 - 45 ps
400 HP 20 in PC PC 57 - 74 psi 58 - 75 psi 34 - 50 psi 34 - 50 psi 34 - 50 psi 34 - 50 ps
400 HP 25 in PC PC 41 - 55 psi 42 - 56 psi 18 - 32 psi 18 - 32 psi 18 - 32 psi 18 - 32 ps
400 HP 30 in PC PC 37 - 41 psi 38 - 42 psi 13 - 18 psi 13 - 18 psi 13 - 18 psi 13 - 18 ps
400 HP 40 in PC PC 34 - 37 psi 35 - 38 psi 11 - 13 psi 10 - 13 psi 10 - 13 psi 10 - 13 ps
500 HP 20 in - 25 in BB PC 58 - 76 psi 58 - 76 psi 46 - 50 psi 46 - 50 psi 45 - 50 psi 45 - 50 ps
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Model CBLE 125-800 HP Boilers
31
BB = Butter Ball PC = Plug Cock
NOTE In cases where the gas train increases in size after the regulating valve two diameters are listed The first number is the customer connection size
500 HP 20 in - 25 in PC PC 60 - 83 psi 60 - 83 psi 48 - 50 psi 47 - 50 psi 47 - 50 psi 47 - 50 psi
500 HP 25 in PC PC 39 - 58 psi 39 - 58 psi 27 - 46 psi 27 - 46 psi 27 - 45 psi 26 - 45 psi
500 HP 30 in PC PC 33 - 39 psi 33 - 39 psi 20 - 27 psi 20 - 27 psi 20 - 27 psi 20 - 26 psi
500 HP 40 in PC PC 28 - 33 psi 28 - 33 psi 16 - 20 psi 16 - 20 psi 15 - 20 psi 15 - 20 psi
600 HP 20 in - 25 in BB PC 80 - 90 psi 80 - 90 psi 65 - 90 psi 65 - 90 psi 64 - 89 psi 63 - 88 psi
600 HP 20 in - 25 in PC PC 82 - 90 psi 82 - 90 psi 67 - 100 psi 67 - 100 psi 66 - 99 psi 66 - 99 psi
600 HP 25 in PC PC 54 - 80 psi 54 - 80 psi 39 - 50 psi 38 - 50 psi 38 - 50 psi 37 - 50 psi
600 HP 25 in - 30 in PC PC 52 - 54 psi 52 - 54 psi 37 - 39 psi 36 - 38 psi 35 - 38 psi 35 - 37 psi
600 HP 30 in PC PC 43 - 52 psi 43 - 52 psi 28 - 37 psi 27 - 36 psi 27 - 35 psi 26 - 35 psi
600 HP 40 in PC PC 37 - 43 psi 37 - 43 psi 22 - 28 psi 21 - 27 psi 20 - 27 psi 20 - 26 psi
700 HP 20 in - 30 in BB PC 110 - 150 psi 107 - 150 psi 87 - 131 psi 86 - 130 psi 86 - 129 psi 86 - 128 psi
700 HP 20 in - 30 in PC PC 113 - 150 psi 110 - 150 psi 90 - 135 psi 89 - 134 psi 89 - 134 psi 89 - 133 psi
700 HP 25 in - 30 in PC PC 71 - 90 psi 68 - 90 psi 48 - 50 psi 47 - 50 psi 47 - 50 psi 46 - 50 psi
700 HP 30 in PC PC 60 - 71 psi 57 - 68 psi 36 - 48 psi 36 - 47 psi 35 - 47 psi 35 - 46 psi
700 HP 40 in PC PC 51 - 60 psi 48 - 57 psi 28 - 36 psi 27 - 36 psi 27 - 35 psi 26 - 35 psi
800 HP 20 in - 30 in BB PC 108 - 150 psi 107 - 150 psi 106 - 150 psi
800 HP 20 in - 30 in PC PC 112 - 150 psi 111 - 150 psi 110 - 150 psi800 HP 25 in - 30 in PC PC 61 - 90 psi 60 - 100 psi 59 - 100 psi
800 HP 30 in PC PC 48 - 61 psi 47 - 50 psi 46 - 50 psi
800 HP 40 in PC PC 35 - 48 psi 34 - 47 psi 34 - 46 psi
Standard Gas Train size is highlighted
Table A1-21 Standard Undersize and Oversize Gas Trains (Continued)
CBLE
BOILER HP GAS TRAINSIZE
UPSTREAMVALVE
DOWNSTREAMVALVE
EMISSIONS LEVEL 09 ppm 15 ppm 20 ppm 30 ppm 60 ppm UC
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 3243
Model CBLE 125-800 HP Boilers
32
ALTITUDE(FT)
CORRECTIONFACTOR
ALTITUDE(FT)
CORRECTIONFACTOR
1000 104 6000 1252000 107 7000 130
3000 111 8000 135
4000 116 9000 140
5000 121 - -
To obtain minimum required gas pressure at altitudesabove 700 feet multiply the pressure by the listed factorsInches WC x 0577 = ozsq-inOzsq-in x 1732 = Inches WCInches WC x 00361= psigOzsq-in x 00625 = psigPsig x 2771 = Inches WCPsig x 160 = Ozsq-in
Table A1-22 Minimum Required Regulated Gas Pressure
Altitude Conversion
BOILERHP
TYPE OF GAS AND HEAT CONTENT
NATURAL GAS1000 (Btucu-ft)
PROPANE GAS2550 (Btucu-ft)
125 5103 2000
150 6124 2402
200 8165 3202
250 10206 4002
300 12247 4802
350 14280 5600
400 16329 6404
500 20415 8006
600 24494 9605
700 28576 11206
800 32659 12807
Table A1-23 Maximum Gas Consumption (CFH)
for Natural Gas and Propane Vapor
BOILER
HP
MODEL CB
CONNECTION SIZE
(IN NPT)
LOCATIONDIMENSION
ldquoArdquo (IN)
125-200 1-12 52
250-350 2 56
400 2 58
500 2-12 60
600 2-12 - 3 71
700-800 3 65
Figure A1-13 Standard Gas Train Connection Size and Location
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 3343
Model CBLE 125-800 HP Boilers
33
Oil-Fired Burners Fuel oil consumption information is shown on the boiler rating sheets in theDimensions and Rating Section
Figure A1-16 shows the oil connection sizes and locations for Model CB Boilersfiring No 2 oil
Figure A1-17 through Figure A1-18 show typical oil systems and layouts
Figure A1-19 and Figure A1-20 show the detail of an oil transfer tank (day tank)typically utilized to provide a storage reservoir between the oil system supply pumpand the boiler oil pump
General BoilerInformation
Table A1-24 shows blowdown tank sizing information
Table A1-25 provides heating surface information
Table A1-26 provides steam volume and disengaging area information
Table A1-27 provides recommended steam nozzle sizes
Table A1-28 provides recommended non-return valve sizes
Boiler RoomInformation
Figure A1-21 shows typical boiler room length requirements
Figure A1-22 shows typical boiler room width requirements
Figure A1-23 shows typical breeching arrangements
Stack SupportCapabilities
All standard Cleaver-Brooks Firetube Boilers with an LE option can support up to2000 lbs without additional support
LE Boilers 250 hp through 800 hp can be reinforced to support 3000 lbs
StackBreechingSize Criteria
The design of the stack and breeching must provide the required draft at each boilerflue gas outlet Proper draft is critical to burner performance
Although constant pressure at the flue gas outlet of the Model CB-LE is not requiredit is necessary to size the stackbreeching to limit flue gas pressure variation Theallowable pressure range is ndash025 WC to +025 WC
For additional information please review Section I4 General Engineering Data(Stacks) and Section F Stacks Stack and breeching sizes should always be providedby a reputable stack supplier who will design the stack and breeching system basedon the above criteria Your local Cleaver-Brooks authorized representative is capableof assisting in your evaluation of the stackbreeching design
Boiler RoomCombustion Air
When determining boiler room air requirements the size of the room air flow andvelocity of air must be reviewed as follows
1 Size (area) and location of air supply openings in boiler room
A Two (2) permanent air supply openings in the outer walls of the boiler room
are recommended Locate (1) at each end of the boiler room preferablybelow a height of 7 feet This allows air to sweep the length of the boiler
B Air supply openings can be louvered for weather protection but they shouldnot be covered with fine mesh wire as this type of covering has poor air flowqualities and is subject to clogging by dust or dirt
C A vent fan in the boiler room is not recommended as it could create a slightvacuum under certain conditions and cause variations in the quantity ofcombustion air This can result in unsatisfactory burner performance
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
34
D Under no condition should the total area of the air supply openings be lessthan (1) square foot
E Size the openings by using the formulaArea (sq-ft) = CFMFPM
2 Amount of air required (cfm)
A Combustion Air = Rated bhp x 8 cfmbhp
B Ventilation Air = Maximum bhp x 2 cfmbhp
C Total recommended air = 10 cfmbhp - up to 1000 feet elevation Add 3percent more per 1000 feet of added elevation
3 Acceptable air velocity in Boiler Room (fpm)
A From floor to (7) foot height - 250 fpm
B Above (7) foot height - 500 fpm
Example Determine the area of the boiler room air supply openings for (1) 300 hpboiler at 800 feet altitude The air openings are to be 5 feet above floor level
bull Air required 300 x 10 = 3000 cfm (from 2B above)
bull Air velocity Up to 7 feet = 250 fpm (from 3 above)
bull Area Required Area = cfm = 3000250 = 12 sq-ft total
bull AreaOpening 122 = 6 sq-ftopening (2 required)
Notice
Consult local codes which may supersede these requirements
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 3543
Model CBLE 125-800 HP Boilers
35
This figure illustrates the basic gas valve arrangement on Cleaver-BrooksModel CB boiler and shows the contractors connection point The valves andcontrols between the contractor connection point and the gas main in thestreet are representative of a typical installation Actual requirements mayvary depending on local codes or local gas company requirements which
should be investigated prior to preparation of specifications and prior to con-struction
A Utilities service valveB Utilities service regulatorC Gas meterD Piping from meter to boiler
The size of the gas line from the meter to the gas pressure regulator at theboiler can be very important if gas pressures are marginal The gas line sizingis dependent on
1 Gas pressure at outlet of gas meter (C)2 Rate of gas flow required CFH3 Length of pipe run (D)4 Pressure required at contractor connection point
The local gas utility will advise the pressure that is available at the outlet oftheir meter
Figure A1-14 Typical Gas Piping Layout
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
36
5
6
S
1
3
42
PILOT GAS LINE
S
S
MAIN GAS LINE
M M
ToBurner
GasSupply
11
10
97
12138
14 15
FLOW
FLOW
Figure A1-15 Model CB-LE Gas Train Components
BOILER
HP
MODEL CB
SUPPLYANDRE-
TURNCONN SIZES
(IN)(NPT)
A(IN)
RECOMMENDED OIL LINEA
SIZES(STANDARD PIPE)
(IN - IPS)
STOR-AGE
TANK TOBOILER
OR PUMPCONNECT
PUMPTO
BOILER
RE-TURN
LINE TOTANK
125150 200
34 12-12 1 1 1
250300350
34 34 1 1 1
400500600
34 11-34 1 1 1
700800
1 11-34 1 1 1
NOTE See No 2 Oil Line Sizing Instruction for systems with other conditions A For suction line condition with a maximum of 10 Feet of lift and a
total of 100 feet of suction line
Figure A1-16 No2 Oil Connection Size Location and Recommended Line Sizes
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
37
Figure A1-17 No 2 Oil Piping Single Boiler
Installation Remote Oil Pump
Figure A1-18 No 2 Oil Piping Multiple Boiler
Installation Remote Oil Pumps
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
38
Figure A1-19 No 2 Oil Piping Multiple Boiler
Installation
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 3943
Model CBLE 125-800 HP Boilers
39
Figure A1-20 No 2 Oil Piping Typical Arrangement
Table A1-24 Model CB-LE Blowdown
Tank Sizing
BOILER HP WATER (GAL)
125 97
150 118
200 145
250 146
300 176
350 210
400 177
500 209
600 250
700 800 296
NOTE Quantity of water removed from boiler by lowering normal water line 4
BOILER
HP
HEATING SURFACE (SQ-FT)
FIRESIDE WATERSIDE
125 625 679
150 750 820
200 1000 1092
250 1250 1346
300 1500 1623
350 1750 1932
400 2000 2151
500 2500 2691
600 3000 3262
700 800 3500 3810
Table A1-25 Heating Surface Model CB-LE
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
40
BOILER HPSTEAM VOLUME CU-FT
STEAM DISENGAGING AREASQ-IN
HIGH PRESSUREA LOW PRESSUREB HIGH PRESSUREA LOW PRESSUREB
125 254 366 5371 5887
150 307 443 6511 7138
200 377 544 7985 8752
250 492 706 7980 8695
300 595 853 9651 10516
350 709 1017 11507 12538
400 721 979 9793 10593
500 837 1137 11376 12303
600 1015 1378 13787 14911
700-800 1198 1627 16273 17600
NOTE Based on normal water levelA Based on 150 psig design pressureB Based on 15 psig design pressure
Table A1-26 Steam Volume and Disengaging Area
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Model CBLE 125-800 HP Boilers
41
BOILERHP
BOILERCAPACITY(LBSHR)
OPERATING PRESSURES (PSIG)
50 75 100 125 150 175 200 250
100 3450
2-12 2-12 NA NA NA NA NA NA
125 4313 3 2-12 2-12 2-12 NA NA NA NA
150 5175 3 3 2-12 2-12 2-12 2-12 NA NA
200 6900 3 3 3 3 3 2-12 2-12 2-12
250 8625 4 3 3 3 3 3 3 3
300 10350 4 4 4 3 3 3 3 3
350 12025 4 4 4 4 4 3 3 3
400 13800 5 4 4 4 4 4 4 3
500 17210 6 5 5 4 4 4 4 4
600 20700 6 6 5 5 5 4 4 4
700 24150 6 6 6 5 5 5 5 4
800 27600 6 6 6 6 6 5 5 5
NOTE Valve sizes (300 Flanges) given in inchesStandard Non-Return valve selections limited to a maximum 2 to 1 turndown(50 of full load) selections based on typical non-return valve sizing recommen-dations For final valve selection contact your C-B authorized representative Forhigh turndown applications see Boiler Book Section I3 Table I3-3 Indicates pressure drop of less than 75 psig All other selections are less than6 psig pressure drop
Boiler HP
OPERATINGPRESSURE
PSIG125 150 200 250 300 350 400 500 600 700 800
15 8 8 10 10 12 12 12 12 12 12 12
30 6 6 8 8 8 10 10 10 12 12 12
40 6 6 6 8 8 8 10 10 10 12 12
50 6 6 6 6 8 8 8 10 10 10 12
75 4 4 6 6 6 8 8 8 8 10 10
100 4 4 6 6 6 6 6 8 8 8 10
125 4 4 4 6 6 6 6 8 8 8 8
150 3 3 4 4 6 6 6 6 6 8 8
200 25 3 4 4 4 4 6 6 6 6 6
250 25 3 3 4 4 4 4 6 6 6 6
NOTES1 Steam nozzle sizes given in inches2 Recommended steam nozzle sizes based on 4000 to 5000 fpm steam velocity3 All standard steam nozzle sizes for 150 psig design pressure or greater are the sameas 125 psig operating pressure on the above table To increase or decrease the standardsize request the change with your local Cleaver-Brooks authorized representative4 Shaded area denotes special surge load baffles must be installed to avoid possible wa-ter carry-over5 For incremental operating pressures see Table I3-1 Steam Systems Fundamentals
Table A1-28 Recommended Steam Nozzle Size (for
4000 to 5000 fpm nozzle velocity)
Table A1-29 Recommended Non-Return Valve Size
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Model CBLE 125-800 HP Boilers
42
1 Shortest boiler room length (Dwg A) is obtained by allowing for possible future tube replacement (from front or rearof boiler) through a window or doorway Allowance is only made for minimum door swing at each end of the boilerThis arrangement provides sufficient aisle space at the front of the boiler but a ldquotightrdquo space condition at the rear
If space permits approximately 15 additional feet should be allowed at the rear for additional aisle and workingspace
2 Next shortest boiler room length (Dwg B) is obtained by allowing for possible future tube replacement from thefront of the boiler Allowance is only made for minimum door swing at the rear
If space permits approximately 15 additional feet should be allowed at the rear for additional aisle and workingspace
3 A slightly longer boiler room (Dwg C) is obtained by allowing for possible future tube replacement from the rear ofthe boiler Allowance for door swing at the front provides sufficient aisle and working space at the front
Figure A1-21 Boiler Room Length (Typical Layouts)
BOILER HP 125-200 250-350 400-800
Dimension A 82 93 102
Dimension B 115 141 171
NOTES1 Recommended Minimum Distance Between Boiler and Wall Dimen-
sion ldquoArdquo allows for a ldquoclearrdquo 42 aisle between the water col-umn on the boiler and the wall If space permits this aisle
should be widened 2 Recommended Minimum Distance Between BoilersDimension ldquoBrdquo between boilers allows for a ldquoclearrdquo aisle of42 - 125 -200 hp48 - 250-350 hp60 - 400-800 hpIf space permits this aisle should be widened
Figure A1-22 Boiler Room Width (Typical Layout)
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 1343
Model CBLE 125-800 HP Boilers
13
BOILER HP DIM 125 150 200
WIDTHS
Overall I 75-12 75-12 75-12
ID Boiler J 60 60 60
Center to Entrance Box K 42-12 42-12 42-12
Center to Outside Hinge KK 35 35 35
Center to Lagging L 33 33 33
Base Outside M 52-12 52-12 52-12
Base Inside N 44-12 44-12 44-12
HEIGHTS
Overall OO 87 87 87
Base to Vent Outlet O 87 87 87
Base to Return and Outlet X 82-38 82-38 82-38
Height of Base Q 12 12 12
Base to Bottom of Boiler R 16 16 16
BOILER CONNECTION
Auxiliary Connection Z 1 1 1
Water Return Flange T 6A 6A 6A
Water Outlet Flange (2 Dip Tube Included) U 6A 6A 6A
Drain Front and Rear W 1-12 1-12 2
Air Vent Y 1-12 1-12 1-12
VENT STACK
Diameter (flgd connection) BB 16 16 16
MINIMUM CLEARANCES
Rear Door Swing DD 32 32 32
Front Door Swing EE 67 67 67
Tube Removal Rear FF 115 139 170Tube Removal Front GG 103 127 158
MINIMUM BOILER ROOM LENGTH ALLOWING FOR DOOR SWING AND TUBE REMOVAL FROM
Rear of Boiler RR 307 355 417
Front of Boiler RF 260 308 370
Thru Window or Doorway RD 224 248 279
WEIGHT IN LBS
Water Capacity Flooded 7670 9295 11130
Approx Ship Wgt ndash 30 psigApprox Ship Wgt ndash 125 psig
1140011800
1250012900
1450014900
NOTES All connections are threaded unless indicatedA ANSI 150 psig flange
Table A1-6 Model CB-LE Hot Water Boiler Dimensions
60rdquo (30 and 125 psig Design Pressure) - Sheet 2 of 2
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 1443
Model CBLE 125-800 HP Boilers
14
BOILER HP DIM 250 300 350
LENGTHS
Overall (60 ppm System) A 191-12 220 252
Shell B 144 171 201
Base Frame C 131 158 188
Front Head Extension (60 ppm System) D 23-12 25 27
Rear Head Extension E 24 24 24
Front Ring Flange to Return H 103-12 130 160
Front Ring Flange to Outlet HH 131 158 188
Ring Flange to Base F 12 12 12
Over Tubesheets V 129 156 186
Shell Extension P 15 15 15
Rear Flange Ring to Base G 12-12 12-12 12-12
Table A1-7 Model CB-LE Hot Water Boiler Dimensions78rdquo (30 and 125 psig Design Pressure) - Sheet 1 of 2
Figure A1-5 CB-LE Hot Water 250-350 HP
s k o o r B r e v a
e l C
R
F G
WW
P
BB
D E
GG
Q
Z
Y T U
RR - RF - RD
X
HH
A
B
HI
L K
OOO
KK
M
N
EE
FF
DD
V
J
C
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 1543
Model CBLE 125-800 HP Boilers
15
BOILER HP DIM 250 300 350
WIDTHS
Overall I 93 93 93
ID Boiler J 78 78 78
Center to Entrance Box K 51 51 51
Center to Outside Hinge KK 51 51 51
Center to Lagging L 42 42 42
Base Outside M 64 64 64
Base Inside N 52 52 52
HEIGHTS
Overall OO 115 115 115
Base to Vent Outlet O 106 106 106
Base to Return and Outlet X 101-12 101-12 101-12
Height of Base Q 10 10 10
Base to Bottom of Boiler R 17 17 17
BOILER CONNECTION
Auxiliary Connection Z 1-14 1-14 1-14
Water Return Flange (2 Dip Tube included) T 8A 8A 8A
Water Outlet Flange (2 Dip Tube Included) U 8A 8A 8A
Air Vent Y 1-12 1-12 1-12
Drain Front and Rear W 2 2 2
VENT STACK
Diameter (flgd connection) BB 20 20 20
MINIMUM CLEARANCES
Rear Door Swing DD 43 43 43
Front Door Swing EE 89 89 89
Tube Removal Rear FF 131 157 187
Tube Removal Front GG 116 142 172
MINIMUM BOILER ROOM LENGTH ALLOWING FOR DOOR SWING AND TUBE REMOVAL FROM
Rear of Boiler RR 364 417 477
Front of Boiler RF 303 356 416
Thru Window or Doorway RD 275 302 332
WEIGHT IN LBS
Water Capacity Flooded 13880 16840 20090
Approx Ship Wgt ndash 30 psigApprox Ship Wgt ndash 125 psig
2140022200
2350024300
2670027500
NOTES All connections are threaded unless indictedA ANSI 150 psig flange
Table A1-7 Model CB-LE Hot Water Boiler Dimensions
78rdquo (30 and 125 psig Design Pressure) - Sheet 2 of 2
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 1643
Model CBLE 125-800 HP Boilers
16
BOILER HP DIM 400 500 600 700 800
LENGTHS
Overall (60 ppm System) A 206 228 262 299 300
Shell B 147 168 200 233 233
Base Frame C 134 155 187 220 220
Front Head Extension (60 ppm System) D 27 28 30 34 35
Rear Head Extension E 32 32 32 32 32
Shell Ring Flange to Base F 12 12 12 12 12
Rear Ring Flange to Base G 12-12 12-12 12-12 12-12 12-12
Shell Flange to Outlet HH 139-12 156-12 182-12 216-12 216-12
Shell Flange to Return H 107 125 151-12 185 185
Over Tubesheets V 130 151 183 216 216
Shell Extension P 17 17 17 17 17
Table A1-8 Model CB-LE Hot Water Boiler Dimensions96rdquo (30 and 125 psig Design Pressure) - Sheet 1 of 2
Figure A1-6 CB-LE Hot Water 400-800 HP
s k o o r B r e v a
e l C
R
F G
WW
P
BB
D E
GG
Q
Z
Y T U
RR - RF - RD
X
HH
A
B
HI
L K
OOO
KK
M
N
EE
FF
DD
V
J
C
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 1743
Model CBLE 125-800 HP Boilers
17
WIDTHS
Overall I 113 113 113 113 115
ID Boiler J 96 96 96 96 96
Center to Entrance Box K 62 62 62 62 64
Center to Outside Hinge KK 62 62 62 62 62
Center to Lagging L 51 51 51 51 51
Base Outside M 72 72 72 72 72
Base Inside N 56 56 56 56 56
HEIGHTS
Overall OO 134 134 134 134 134
Base to Vent Outlet O 126 126 126 126 126
Height of Base Q 12 12 12 12 12
Base to Bottom of Boiler R 19 19 19 19 19
Base to Return and Outlet X 121-916 121-916 121-916 121-916 121-916
BOILER CONNECTIONS
Auxiliary Connection Z 1-14 1-14 1-14 1-14 1-14
Drain Front and Rear W 2 2 2 2 2
Water Return T 10A 10A 12A 12A 12A
Water Outlet (2rdquo Dip Tube Included) U 10A 10A 12A 12A 12A
Air Vent Y 2 2 2 2 2
VENT STACK
Diameter (Flanged Connection) BB 24 24 24 24 24
MINIMUM CLEARANCES
Rear Door Swing DD 53 53 53 53 53
Front Door Swing EE 108 108 108 108 108
Tube Removal Rear FF 131 152 184 217 217
Tube Removal Front GG 114 135 167 200 200
MINIMUM BOILER ROOM LENGTH ALLOWING FOR DOOR SWING AND TUBE REMOVAL FROM
Rear of Boiler RR 386 428 492 558 558
Front of Boiler RF 314 356 420 486 486
Thru Window or Doorway RD 308 329 361 394 394
WEIGHT IN LBS
Normal Water Capacity 20015 23300 28260 33360 33360
Approx Ship Wgt ndash 30 psig
Approx Ship Wgt ndash 125 psig
33300
37270
36900
40780
42150
46005
49650
53300
49750
53400
NOTES All connections are threaded unless indicated
A ANSI 150 psig flange
BOILER HP DIM 400 500 600 700 800
Table A1-8 Model CB-LE Hot Water Boiler Dimensions
96rdquo (30 and 125 psig Design Pressure) - Sheet 2 of 2
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 1843
Model CBLE 125-800 HP Boilers
18
BOILER HP
MOTOR HP
60PPM
30PPM
25PPM
20PPM
125 5 10 5 10
150 75 10 10 10
200 15 15 20 NA
250 75 10 15 15
300 10 15 20 30
350 15 25 40 40
400 10 15 20 20
500 15 20 25 30
600 25 30 50 60
700 30 50 75 75
800 50 75 NA NA
NOTES For elevations above 700rsquo - contact your local
Cleaver-Brooks authorized representative
Table A1-9 Model CB-LE Blower Motor Selection -
Operating Pressures 150 psig and Less and All Hot
Water Boilers
BOILER HP
MOTOR HP
60
PPM
30
PPM
25
PPM
20
PPM
125 5 10 10 10
150 10 10 10 15
200 15 20 20 NA
250 75 10 15 20
300 10 20 30 40
350 20 30 40 50
400 10 15 20 25
500 20 25 30 40
600 25 40 60 60
700 40 60 75B 75C
800 60 75A NA NA
NOTES For elevation above 700rsquo - contact your local
Cleaver-Brooks authorized representative
A Downrate to 770 hp
B Downrate to 675 hp
C Downrate to 660 hp
Table A1-10 Model CB-LE Blower Motor Selection -
Operating Pressures Greater than 150 psig (Steam
Boilers)
09-09
Table A1-11 Blower Motor Selection CB-LE NTI BoilersTable A1-12 Turndown Guarantee for CB-LE NTI
Boilers - Natural Gas amp 2 Oil
Boiler SizeTurndown
9 ppm 15 ppm
125 41 41
150 41 51
200 41 51
250 51 51
300 51 51
350 51 51
400 51 61
500 51 61
600 61 61
700 71 71
800 71 71
800 HP to be derated to 720 HP for 9 ppm and 750 HP
for 15 ppm
Altitude 700 ft and less - Design Pressure 150 psi and less
800 HP - to be de-rated to 720 HP for 9 ppm and to 750 HP for 15 ppm
mpp9mpp51Nominal
Boiler Size Blower Motor HP Blower Motor HP
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Model CBLE 125-800 HP Boilers
19
BOILER HPFUEL
SERIES
HOT WATER STEAM
30 PSIG 125 PSIG 15 PSIG 150 PSIG 200 PSIG
125100 11200 11600 11300 12000 12600200 11400 11800 11500 12400 13000
700 11300 11700 11400 12300 12900
150
100 12300 12700 12400 13200 13900
200 12500 12900 12600 13500 14200
700 12300 12700 12400 13300 14000
200
100 14400 14800 14500 15500 16300
200 14500 14900 14600 15600 16400
700 14500 14900 14600 15600 16400
250
100 20700 21500 20800 22000 23800
200 21400 22200 21500 22800 24600
700 20900 21700 21000 22500 24300
300
100 23100 23900 23200 24800 26800
200 23500 24300 23600 25200 27200
700 23400 24200 23500 25000 27000
350
100 26200 27000 26300 27600 29100
200 26700 27500 26800 27800 29300
700 26400 27200 26500 27700 29200
400
100 33000 36970 33200 36270 39380
200 33300 37270 33500 36570 39680
700 33200 37170 33400 36470 39580
500
100 36600 40470 36810 39670 43480
200 36900 40780 37110 39970 43580
700 36800 40680 37010 39870 43280
600
100 41850 45905 42000 44725 49100
200 42150 46005 42300 45025 49400
700 42050 45915 42200 44925 49300
700800
100 49450 53000 49300 51850 57015
200 49750 53300 49600 52150 57315
700 49650 53200 49500 52050 57215
NOTES1 Weights shown are based on standard product offering for current listed boilers If units are of special design and construction actual weightwill be determined at time of shipment Shipment will then be made on shippers weight and count All weights are in US pounds
Table A1-13 Model CB-LE Boiler Weights
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 2043
Model CBLE 125-800 HP Boilers
20
VALVE
SETTING15 PSIG STEAM 100 PSIG STEAM 125 PSIG STEAM 150 PSIG STEAM 200 PSIG STEAM 250 PSIG STEAM 300 PSIG STEAM
BOILERHP
NO OF
VALVES-REQD
OUTLET
SIZE(IN)
NO OF
VALVES-REQD
OUTLET
SIZE(IN)
NO OF
VALVESREQD
OUTLET
SIZE(IN)
NO OF
VALVES-REQD
OUTLET
SIZE(IN)
NO OF
VALVES-REQD
OUTLET
SIZE(IN)
NO OF
VALVESREQD
OUTLET
SIZE(IN)
NO OF
VALVESREQD
OUTLET
SIZE(IN)
125 1 3 2 1-12 2(1) 1-12(1) 1-14
2(1) 1-12(1) 1-14
2(1) 1-14(1) 1
2 1 2 1
150 1 3 2(1) 2(1) 1-12
2 1-14 2(1) 1-12(1) 1-14
2(1) 1(1) 1-14
2 1 2 1
200 2 2-12 2 2 2 1-12 2 1-12 2(1) 1-12(1) 1-14
2 1-14 2(1) 1(1) 1-14
250 2(1) 2-12(1) 3
2(1) 2-12(1) 2
2(1)2(1)1-12
2(1) 2(1) 1-12
2(1)1-12(1)1-14
2(1) 1-12(1) 1-14
2 1-14
300 2 3 2(1) 2-12(1) 2
2 2 2(1) 2(1) 1-12
2 1-12 2(1)1-12(1)1-14
2(1) 1-12(1) 1-14
350 3(1) 2(2) 3
3(1) 2-12(2) 2
2(1)2(1)1-12
2 2 2(1) 1-12(1) 2
2 1-12 2(1) 1-12(1) 1-14
400 3(2) 3(1) 2-12
3(1) 2(2) 2-12
2(1)2(1)2-12
2(1) 2-12(1) 2
2(1) 1-12(1) 2
2(1) 2(1) 1-12
2 1-12
500 3 (3) 3 3 2-12 2 2-12 2(1) 2-12(1) 2
2(1) 2(1) 2-12
2(1) 2(1)1-12
2(1) 1-12(1) 2
600 4 3 4(3) 2-12(1) 2
3 2-12 2 2-12 2(1) 2(1) 2-12
2 2 2 2
700 5(3) 3(2) 2-12
5(3) 2-12(2) 2
3 2-12 3(2) 2-12(1) 2
2 2-12 2(1) 2(1) 2-12
2 2
800 5(3) 3(2) 2-12
5(3) 2-12(2) 2
4(3) 2-12(1) 2
3(2) 2-12(1) 2
2 2-12 2(1) 2(1) 2-12
2(1) 2(1) 2-12
NOTES Valve manufacturers are Kunkle Consolidated or Conbraco depending on availability This table revised 042012
Table A1-14 Steam Boiler Safety Valve Openings
VALVE
SETTING 30 PSIG HW 60 PSIG HW 100 PSIG HW 125 PSIG HW
BOILER HPNO OF
VALVESREQD
OUTLETSIZE(IN)
NO OFVALVESREQD
OUTLETSIZE(IN)
NO OFVALVESREQD
OUTLETSIZE(IN)
NO OFVALVESREQD
OUTLETSIZE(IN)
125 1 2-12 1 2 1 2 1 1-14
150 1 2-12 1 2-12 1 2 1 2
200 2(1) 2-12(1) 1-14
1 2-12 1 2 1 2
250 2 (1) 2(1) 2-12
1 2-12 1 2-12 1 2
300 2 2-12 2(1) 1(1) 2-12
1 2-12 1 2-12
350 3(2) 2-12(1) 1
2(1) 2-12(1) 2
1 2-12 1 2-12
400 3 (1) 2(2) 2-12 2 (1) 2(2) 2-12 2 (1) 1(1) 2-12 1 2-12
500 4 (1) 1(3) 2-12
2 2-12 2(1) 2-12(1) 1-14
2(1) 1(1) 2-12
600 4(3) 2-12(1) 2
3(1) 1-1(2) 2-12
2(1) 2(1) 2-12
2(1) 2-12(1) 1-14
700 amp 800 5 (1) 1(4) 2-12
3(1) 2(2) 2-12
2 2-12 2(1) 2-12(1) 2
NOTES Hot water relief valves are Kunkle 537
Table A1-15 Hot Water Boiler Relief Valve Openings
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Model CBLE 125-800 HP Boilers
21
BOILER HP A B C D E F G X1 X2 X3
125 6 9 112 39-12 57-12 4 44-12 10 9-34 22-12
150 6 9 136 39-12 57-12 4 44-12 10 9-34 22-12
200 6 9 167 39-12 57-12 4 44-12 10 9-34 22-12
250 6 12 131 46 70 4 56 10 22 22-12
300 6 12 158 46 70 4 56 10 22 22-12
350 6 12 188 46 70 4 56 10 22 22-12
NOTE
All numbers in table are in inches
6-inch high mounting piers recommended for use beneath the boiler base frame The use of these piers provides increased inspection
accessibility to the piping beneath the boiler and added height for washing down the area beneath the boiler
Figure A1-7 Space Required to Open Rear Head on Model CB-LE Boilers Equipped with Davits
BOILER HPDIMENSIONS (INCHES)
A B C D E
CB-125 THRU CB-200 33 55 45 68 32
CB-250 THRU CB-350 42 69 58 86 43
CB-400 THRU CB-800 51 88 71 109 53
Figure A1-8 Model CB-LE Boiler Mounting Piers (60rdquo and 78rdquo)
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Model CBLE 125-800 HP Boilers
22
BOILER HP A B C D E F G
400 6 14 134 50 78 6-12 58-78
500 6 14 155 50 78 6-12 58-78
600 6 14 187 50 78 6-12 58-78
700-800 6 14 220 50 78 6-12 58-78
NOTE1 All numbers in table are in inches2 6-inch high mounting piers recommended for use beneath the boiler base frame The use of these piers provides in-
creased inspection accessibility to the piping beneath the boiler and added height for washing down the area beneaththe boiler
Figure A1-9 Model CB-LE Boiler Mounting Piers (96rdquo)
CBLE 250-350HP
CBLE 400-800HP
Motor HP Hole Number
75 1
15 1
25 2
40 3
Motor HP Hole Number
10 1
20 1
30 250 2
75 3
Figure A1-10 Front Davit Support
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Model CBLE 125-800 HP Boilers
23
BOILERHP
VIEW
ALL DIMENSIONS IN INCHES
A B C D E
125 All B 80-14 29-34 70-12 10 3
150 All B 80-14 29-34 83-12 10 3
200 All B 80-14 29-34 114-12 10 3
250Steam B 99 36 72 10 3
Hot Water B 99 36 81 10 3
300
Steam B 99 36 99 10 3
Hot Water B 99 36 108 10 3
350Steam B 99 36 129 10 3
Hot Water B 99 36 138 10 3
400Steam B 119 35-34 78 11 3
Hot Water B 119 35-34 78 11 3
500Steam B 119 35-34 99 11 3
Hot Water B 119 35-34 99 11 3
600Steam B 119 35-34 131 11 3
Hot Water B 119 35-34 131 11 3
700 amp 800Steam B 119 35-34 164 11 3
Hot Water B 119 35-34 164 11 3
NOTE A B and C dimensions may vary by 12 inch
Figure A1-11 Lifting Lug Location Model CB-LE Boilers
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Model CBLE 125-800 HP Boilers
24
PERFORMANCE DATA
The Low Emission Option provides NOx reduction at current published andpredicted fuel-to-steam efficiencies
Specifying BoilerEfficiency
Cleaver-Brooks offers an industry leading fuel-to-steam boiler efficiency guaranteefor Model CB-LE Firetube Boilers The guarantee is based on the fuel-to-steam
efficiencies shown in the efficiency tables and the following conditions Theefficiency percent number is only meaningful if the specific conditions of theefficiency calculations are clearly stated in the specification (see Cleaver-Brookspublication CB-7768 for a detailed description of efficiency calculations)
When specifying the efficiencies in the tables be sure to include the specificguarantee conditions to maximize the effectiveness of your efficiency specification Ifyou have any questions regarding the efficiency specifications please contact yourlocal Cleaver-Brooks authorized representative
EfficiencySpecification
The boiler manufacturer shall guarantee that at the time of startup the boiler willachieve fuel-to-steam efficiency (as shown in Table A1-16 and Table A1-17) at100 firing rate (add efficiency guarantees at 25 50 and 75 of rating if
required) If the boiler(s) fail to achieve the corresponding guaranteed efficiency aspublished the boiler manufacturer will rebate to the ultimate boiler owner tenthousand dollars ($10000) for every full efficiency point (10) that the actualefficiency is below the guaranteed level
The specified boiler efficiency is based on the following conditions
1 Fuel specification used to determine boiler efficiency
bull Natural Gas
Carbon (wt) = 6998Hydrogen (wt) = 2231Sulfur (wt) = 00
Heating value Btulb = 21830bull No 2 Oil
Carbon (wt) = 858Hydrogen (wt) = 127Sulfur (wt) = 02Heating value Btulb = 19420
No 6 Oil
Carbon (wt) = 866Hydrogen (wt) = 109Sulfur (wt) = 209Heating value Btulb = 18830
2 Efficiencies are based on ambient air temperature of 80 degF relative humidity of30 and 15 excess air in the exhaust flue gas
3 Efficiencies are based on manufacturerrsquos published radiation and convectionlosses (For Cleaver-Brooks radiation and convection losses see BoilerEfficiency Facts Guide publication number CB-7767)
4 Any efficiency verification testing will be based on the stack loss method
For efficiencies and stack temperatures at operating pressures not listed followthese procedures
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Model CBLE 125-800 HP Boilers
25
When the operating steam pressure is between 10 psig and 125 psig interpolatethe values from the efficiency tables
When the operating steam pressure is above 125 psig estimated efficiency can becalculated as follows
Example
Boiler 350 hpFuel natural gas
Operating steam pressure 200 psig
Find the fuel-to-steam efficiency at 100 firing rate From Table A1-16 for a 350hp boiler operating at 100 firing rate and an operating steam pressure of 125psig the efficiency is 825
Using Figure A1-12 note that the stack temperature increases 36 degF at the higheroperating pressure To estimate boiler efficiency use this rule of thumb For every40 degF increase in stack temperature efficiency decreases by 1 Since the stacktemperature rise is 36 degF the decrease in the boiler efficiency at 200 psig operatingpressure is calculated as follows 3640 =9 Therefore the boiler efficiency at200 psig operating pressure is 825 -9 = 816
Emissions The emission data included in this section consists of typical emission levels forModel CB boilers equipped with 60 30 25 and 20 ppm LE Options when firingnatural gas and No 2 oil
Notice
The data in Table A1-18 and Table A1-19 represent typical emission levels only
Guaranteed emission levels are available from your local Cleaver-Brooks authorized
representative
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Model CBLE 125-800 HP Boilers
26
BOILER
HP
OPERATING PRESSURE = 10 psig OPERATING PRESSURE = 125 psig
OF LOAD OF LOAD
25 50 75 100 25 50 75 100
125 833 836 834 832 804 809 810 810
150 844 846 845 843 815 820 820 821
200 850 853 851 849 822 827 827 827
250 850 847 840 833 820 820 816 813
300 853 853 846 839 826 827 822 819
350 853 857 852 845 826 832 828 825
400 845 847 846 844 818 822 824 822
500 855 857 855 852 828 832 833 831
600 857 860 858 856 829 835 836 835
700 857 862 860 857 830 836 836 836
800 858 861 859 856 831 836 837 835
Table A1-16 Predicted Fuel-to-Steam Efficiencies - Natural Gas
Figure A1-12 Predicted Stack Temperature Increase for Pressure Greater Than 125 psig
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Model CBLE 125-800 HP Boilers
27
Table A1-18 CB-LE Boilers - Natural Gas Emission Levels
POLLUTANT
ESTIMATED LEVEL
60 ppm 30 ppm 25 ppm 20 ppm 15 ppm 9 ppm
CO ppmA
lbMMBtu
50150B
004011
50150B
004011
50150B
004011
50150B
004011
50
004
50
004
NOx ppmA
lbMMBtu
60
007
30
0035
25
003
20
0024
15
0018
9
0011
SOx ppmA
lbMMBtu
1
0001
1
0001
1
0001
1
0001
1
0001
1
0001
HCVOC5 ppmA
lbMMBtu
10
0004
10
0004
10
0004
10
0004
10
0004
10
0004
PM ppmA
lbMMBtu
-
001
-
001
-
001
-
001
-
001
-
001
A ppm levels are given on a dry volume basis and corrected to 3 oxygen (15 excess air)
B CO emission for 60 30 25 amp 20 ppm system is 50 ppm (004 lbMMBtu) when boiler is operating above 50 of rated capacity
CO emission is 150 ppm (011 lbMMBtu) when boiler is operating below 50 of rated capacity
Table A1-17 Predicted Fuel-to-Steam Efficiencies - No 2 Oil
BOILER
HP
OPERATING PRESSURE = 10 psig OPERATING PRESSURE = 125 psig
OF LOAD OF LOAD
25 50 75 100 25 50 75 100
125 867 869 867 866 837 842 843 843
150 878 880 878 876 848 853 853 854
200 884 887 884 882 856 860 860 860
250 883 881 874 867 853 853 849 847
300 886 887 880 873 859 860 855 852
350 886 890 885 878 859 866 861 858
400 879 881 879 876 851 855 856 855
500 889 890 889 886 861 865 866 864
600 890 894 892 890 862 868 869 868
700 891 895 893 891 863 869 870 869
800 892 895 893 890 864 869 870 868
Table A1-19 CB-LE Boilers - No 2 Oil Emission Levels
POLLUTANTESTIMATED LEVEL
60 ppm LE Option 30 25 20 ppm LE Option 15 ppm 9 ppm
CO ppmA
lbMMBtu
50
0039
50
0039
50
0039
50
0039
NOx ppmA
lbMMBtu140
018690
012085
011370
0093
SOx ppmA
lbMMBtu
278
052
278
052
278
052
278
052
HCVOCs ppmA
lbMMBtu
4
0002
4
0002
4
0002
4
0002
PM ppmA
lbMMBtu
-
0025
-
0025
-
0025
-
0025
A ppm levels are given on a dry volume basis and corrected to 3 oxygen (15 excess air)
BASED ON THE FOLLOWING CONSTITUENT LEVELS
Fuel-bound Nitrogen content = 0015 by weight
Sulfur content = 05 by weight
Ash content = 001 by weight
09-09
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Model CBLE 125-800 HP Boilers
28
ENGINEERING DATA
Sound Level Table A1-20 gives a summary of predicted sound pressure levels for Model CBboilers with 30 ppm LE Options Contact your local Cleaver-Brooks authorizedrepresentative for sound levels or other LE Options
Units - The units for the sound level tables are dbA (decibels measured on the A-weighted scale) in reference to 00002 microbars (20 micro-Newtons per square
meter) Their reference are standardly used in specifying and reporting soundpressure levels on industrial equipment
Test Method - The sound pressure levels in the above tables were obtained fromtests in accordance with the ldquoABMA Test Code for the Measurement of Sound fromPackaged Boilersrdquo In accordance with this code the sound pressure levels reportedwere measured on the boiler centerline 4-12 feet vertically above the bottom of thebase rails and 3 feet horizontally in front of the end of the blower motor or frontsurface of the electrical cabinet
Sound Level Meter - The sound level meter used complies with ANSI S14 Type 1(Precision) The readings are taken with the meter set for slow response andcorrected for background levels
Sound Pressure - The large size boilers the need for auxiliary equipment and thenecessary interconnecting piping make it impractical (and sometimes impossible) toprovide a boiler testing environment which is suitable for taking the data needed todevelop Sound Pressure Power levels
Typical Values - Sound pressure levels (dbA) for the same boiler will vary betweenboiler rooms Sound levels will vary with motor type NOx levels and altitudes Inaddition variations will occur between different people using different sound meterson the same boiler And finally no two boilers can be expected to give precisely thesame sound levels For these reasons we can only predict but not guarantee soundlevels (dbA)
BOILER HP 125 150 200 250 300 350 400 500 600 700 800
HFO dbA 84 84 84 83 84 85 84 85 85 88 90
LFO dbA 82 82 83 81 82 83 82 83 83 84 89
HFG dbA 82 82 83 82 83 84 83 83 85 87 90
LFG dbA 81 81 82 81 82 83 81 81 82 84 88
NOTES1 Sound pressure levels measured on boilers operating in various locations and ex-
pressed in dbA are as shown2 Based on standard altitude fans and fan motors 60 Hz3 Contact your local Cleaver-Brooks authorized representative for sound levels of 60 25or 20 ppm LE Options
ABBREVIATIONS
HF = High Fire LF = Low Fire O = Oil G = Gas
Table A1-20 Model CBLE Predicted Sound Levels 30 ppm NOx Systemss
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Model CBLE 125-800 HP Boilers
29
Gas-Fired Burners Table A1-21 shows gas pressure with standard over- and undersized gas trains
Table A1-22 shows minimum required gas pressure altitude conversion
Figure A1-13 shows standard gas train sizes and locations for Model CB FiretubeBoilers
Figure A1-14 shows typical gas train piping layouts for multiple boiler applications
Figure A1-15 shows standard gas train components
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Model CBLE 125-800 HP Boilers
30
Table A1-21 Standard Undersize and Oversize Gas Trains
CBLE
BOILER HP GAS TRAINSIZE
UPSTREAMVALVE
DOWNSTREAMVALVE
EMISSIONS LEVEL 09 ppm 15 ppm 20 ppm 30 ppm 60 ppm UC
125 HP 15 in BB BB 33 - 49 psi 33 - 49 psi 08 - 50 psi 07 - 50 psi 07 - 50 psi 07 - 50 ps
125 HP 15 in PC PC 34 - 50 psi 34 - 50 psi 09 - 50 psi 08 - 50 psi 08 - 50 psi 08 - 50 ps
125 HP 20 in BB BB 31 - 33 psi 31 - 33 psi 06 - 08 psi 06 - 07 psi 05 - 07 psi 05 - 07 ps
125 HP 20 in PC PC 31 - 34 psi 31 - 34 psi 06 - 09 psi 06 - 08 psi 06 - 08 psi 05 - 08 ps
125 HP 25 in PC PC 30 - 31 psi 30 - 31 psi 04 - 06 psi 04 - 06 psi 04 - 05 psi 04 - 05 ps
125 HP 30 in PC PC 29 - 30 psi 29 - 30 psi 04 - 04 psi 04 - 04 psi 04 - 04 psi 03 - 04 ps
125 HP 40 in PC PC 29 - 29 psi 29 - 29 psi 04 - 04 psi 03 - 04 psi 03 - 04 psi 03 - 03 ps
150 HP 15 in BB BB 37 - 55 psi 39 - 58 psi 10 - 47 psi 09 - 50 psi 09 - 50 psi 09 - 50 ps
150 HP 15 in PC PC 38 - 57 psi 40 - 60 psi 11 - 42 psi 11 - 50 psi 10 - 50 psi 10 - 50 ps
150 HP 20 in BB BB 34 - 37 psi 36 - 39 psi 07 - 10 psi 06 - 09 psi 06 - 09 psi 06 - 09 ps
150 HP 20 in PC PC 34 - 38 psi 36 - 40 psi 07 - 11 psi 07 - 11 psi 07 - 10 psi 06 - 10 ps
150 HP 25 in PC PC 32 - 34 psi 34 - 36 psi 05 - 07 psi 04 - 06 psi 04 - 06 psi 04 - 06 ps
150 HP 30 in PC PC 32 - 32 psi 34 - 34 psi 04 - 05 psi 04 - 04 psi 04 - 04 psi 03 - 04 ps
150 HP 40 in PC PC 31 - 32 psi 33 - 34 psi 04 - 04 psi 03 - 04 psi 03 - 04 psi 03 - 03 ps
200 HP 15 in BB BB 46 - 69 psi 50 - 75 psi 16 - 50 psi 15 - 50 psi 15 - 50 ps
200 HP 15 in PC PC 48 - 72 psi 52 - 78 psi 18 - 50 psi 17 - 50 psi 17 - 50 ps
200 HP 20 in BB BB 41 - 46 psi 45 - 50 psi 10 - 16 psi 10 - 15 psi 10 - 15 ps
200 HP 20 in PC PC 41 - 48 psi 45 - 52 psi 11 - 18 psi 11 - 17 psi 10 - 17 ps
200 HP 25 in PC PC 38 - 41 psi 42 - 45 psi 07 - 10 psi 07 - 10 psi 06 - 10 ps
200 HP 30 in PC PC 36 - 38 psi 40 - 42 psi 06 - 07 psi 05 - 07 psi 05 - 06 ps
200 HP 40 in PC PC 36 - 36 psi 40 - 40 psi 05 - 06 psi 05 - 05 psi 04 - 05 ps
250 HP 15 in BB BB 41 - 62 psi 44 - 67 psi 24 - 50 psi 24 - 27 psi 24 - 26 psi 23 - 26 ps
250 HP 15 in PC PC 45 - 67 psi 48 - 72 psi 28 - 50 psi 27 - 28 psi 27 - 27 psi 27 - 27 ps
250 HP 20 in BB BB 33 - 38 psi 37 - 41 psi 16 - 24 psi 16 - 24 psi 16 - 24 psi 15 - 23 ps
250 HP 20 in PC PC 34 - 40 psi 37 - 43 psi 17 - 28 psi 17 - 27 psi 16 - 27 psi 16 - 27 ps
250 HP 25 in PC PC 29 - 33 psi 32 - 37 psi 11 - 16 psi 11 - 16 psi 11 - 16 psi 10 - 15 ps
250 HP 30 in PC PC 27 - 29 psi 31 - 32 psi 09 - 11 psi 09 - 11 psi 09 - 11 psi 09 - 10 ps
250 HP 40 in PC PC 26 - 27 psi 29 - 31 psi 08 - 09 psi 08 - 09 psi 08 - 09 psi 08 - 09 ps
300 HP 15 in - 20 in BB BB 55 - 83 psi 57 - 85 psi 30 - 50 psi 30 - 36 psi 30 - 35 psi 30 - 35 ps
300 HP 15 in - 20 in PC PC 58 - 87 psi 60 - 90 psi 33 - 50 psi 33 - 37 psi 33 - 36 psi 33 - 36 ps
300 HP 20 in BB BB 46 - 55 psi 47 - 57 psi 21 - 30 psi 21 - 30 psi 20 - 30 psi 20 - 30 ps
300 HP 20 in PC PC 47 - 58 psi 48 - 60 psi 22 - 33 psi 22 - 33 psi 21 - 33 psi 21 - 33 ps
300 HP 30 in PC PC 39 - 46 psi 40 - 47 psi 13 - 21 psi 13 - 21 psi 12 - 20 psi 12 - 20 ps
300 HP 40 in PC PC 37 - 39 psi 39 - 40 psi 11 - 13 psi 11 - 13 psi 10 - 12 psi 10 - 12 ps
350 HP 15 in - 20 in BB BB 64 - 90 psi 62 - 90 psi 42 - 50 psi 42 - 50 psi 41 - 50 psi 41 - 50 ps
350 HP 15 in - 20 in PC PC 68 - 90 psi 66 - 90 psi 46 - 50 psi 46 - 50 psi 45 - 50 psi 45 - 50 ps
350 HP 20 in BB BB 54 - 64 psi 53 - 62 psi 32 - 42 psi 32 - 42 psi 32 - 41 psi 31 - 41 ps
350 HP 20 in PC PC 56 - 68 psi 54 - 66 psi 34 - 46 psi 34 - 46 psi 33 - 45 psi 33 - 45 ps
350 HP 25 in PC PC 43 - 54 psi 42 - 53 psi 21 - 32 psi 21 - 32 psi 20 - 32 psi 20 - 31 ps
350 HP 30 in PC PC 40 - 43 psi 38 - 42 psi 17 - 21 psi 17 - 21 psi 17 - 20 psi 16 - 20 ps
350 HP 40 in PC PC 37 - 40 psi 36 - 38 psi 15 - 17 psi 15 - 17 psi 14 - 17 psi 14 - 16 ps
400 HP 15 in - 20 in BB BB 69 - 90 psi 69 - 90 psi 46 - 50 psi 46 - 50 psi 45 - 50 psi 45 - 50 ps
400 HP 15 in - 20 in PC PC 74 - 90 psi 75 - 90 psi 51 - 87 psi 51 - 77 psi 51 - 77 psi 51 - 77 ps
400 HP 20 in BB BB 55 - 69 psi 56 - 69 psi 32 - 46 psi 32 - 46 psi 32 - 45 psi 32 - 45 ps
400 HP 20 in PC PC 57 - 74 psi 58 - 75 psi 34 - 50 psi 34 - 50 psi 34 - 50 psi 34 - 50 ps
400 HP 25 in PC PC 41 - 55 psi 42 - 56 psi 18 - 32 psi 18 - 32 psi 18 - 32 psi 18 - 32 ps
400 HP 30 in PC PC 37 - 41 psi 38 - 42 psi 13 - 18 psi 13 - 18 psi 13 - 18 psi 13 - 18 ps
400 HP 40 in PC PC 34 - 37 psi 35 - 38 psi 11 - 13 psi 10 - 13 psi 10 - 13 psi 10 - 13 ps
500 HP 20 in - 25 in BB PC 58 - 76 psi 58 - 76 psi 46 - 50 psi 46 - 50 psi 45 - 50 psi 45 - 50 ps
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Model CBLE 125-800 HP Boilers
31
BB = Butter Ball PC = Plug Cock
NOTE In cases where the gas train increases in size after the regulating valve two diameters are listed The first number is the customer connection size
500 HP 20 in - 25 in PC PC 60 - 83 psi 60 - 83 psi 48 - 50 psi 47 - 50 psi 47 - 50 psi 47 - 50 psi
500 HP 25 in PC PC 39 - 58 psi 39 - 58 psi 27 - 46 psi 27 - 46 psi 27 - 45 psi 26 - 45 psi
500 HP 30 in PC PC 33 - 39 psi 33 - 39 psi 20 - 27 psi 20 - 27 psi 20 - 27 psi 20 - 26 psi
500 HP 40 in PC PC 28 - 33 psi 28 - 33 psi 16 - 20 psi 16 - 20 psi 15 - 20 psi 15 - 20 psi
600 HP 20 in - 25 in BB PC 80 - 90 psi 80 - 90 psi 65 - 90 psi 65 - 90 psi 64 - 89 psi 63 - 88 psi
600 HP 20 in - 25 in PC PC 82 - 90 psi 82 - 90 psi 67 - 100 psi 67 - 100 psi 66 - 99 psi 66 - 99 psi
600 HP 25 in PC PC 54 - 80 psi 54 - 80 psi 39 - 50 psi 38 - 50 psi 38 - 50 psi 37 - 50 psi
600 HP 25 in - 30 in PC PC 52 - 54 psi 52 - 54 psi 37 - 39 psi 36 - 38 psi 35 - 38 psi 35 - 37 psi
600 HP 30 in PC PC 43 - 52 psi 43 - 52 psi 28 - 37 psi 27 - 36 psi 27 - 35 psi 26 - 35 psi
600 HP 40 in PC PC 37 - 43 psi 37 - 43 psi 22 - 28 psi 21 - 27 psi 20 - 27 psi 20 - 26 psi
700 HP 20 in - 30 in BB PC 110 - 150 psi 107 - 150 psi 87 - 131 psi 86 - 130 psi 86 - 129 psi 86 - 128 psi
700 HP 20 in - 30 in PC PC 113 - 150 psi 110 - 150 psi 90 - 135 psi 89 - 134 psi 89 - 134 psi 89 - 133 psi
700 HP 25 in - 30 in PC PC 71 - 90 psi 68 - 90 psi 48 - 50 psi 47 - 50 psi 47 - 50 psi 46 - 50 psi
700 HP 30 in PC PC 60 - 71 psi 57 - 68 psi 36 - 48 psi 36 - 47 psi 35 - 47 psi 35 - 46 psi
700 HP 40 in PC PC 51 - 60 psi 48 - 57 psi 28 - 36 psi 27 - 36 psi 27 - 35 psi 26 - 35 psi
800 HP 20 in - 30 in BB PC 108 - 150 psi 107 - 150 psi 106 - 150 psi
800 HP 20 in - 30 in PC PC 112 - 150 psi 111 - 150 psi 110 - 150 psi800 HP 25 in - 30 in PC PC 61 - 90 psi 60 - 100 psi 59 - 100 psi
800 HP 30 in PC PC 48 - 61 psi 47 - 50 psi 46 - 50 psi
800 HP 40 in PC PC 35 - 48 psi 34 - 47 psi 34 - 46 psi
Standard Gas Train size is highlighted
Table A1-21 Standard Undersize and Oversize Gas Trains (Continued)
CBLE
BOILER HP GAS TRAINSIZE
UPSTREAMVALVE
DOWNSTREAMVALVE
EMISSIONS LEVEL 09 ppm 15 ppm 20 ppm 30 ppm 60 ppm UC
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Model CBLE 125-800 HP Boilers
32
ALTITUDE(FT)
CORRECTIONFACTOR
ALTITUDE(FT)
CORRECTIONFACTOR
1000 104 6000 1252000 107 7000 130
3000 111 8000 135
4000 116 9000 140
5000 121 - -
To obtain minimum required gas pressure at altitudesabove 700 feet multiply the pressure by the listed factorsInches WC x 0577 = ozsq-inOzsq-in x 1732 = Inches WCInches WC x 00361= psigOzsq-in x 00625 = psigPsig x 2771 = Inches WCPsig x 160 = Ozsq-in
Table A1-22 Minimum Required Regulated Gas Pressure
Altitude Conversion
BOILERHP
TYPE OF GAS AND HEAT CONTENT
NATURAL GAS1000 (Btucu-ft)
PROPANE GAS2550 (Btucu-ft)
125 5103 2000
150 6124 2402
200 8165 3202
250 10206 4002
300 12247 4802
350 14280 5600
400 16329 6404
500 20415 8006
600 24494 9605
700 28576 11206
800 32659 12807
Table A1-23 Maximum Gas Consumption (CFH)
for Natural Gas and Propane Vapor
BOILER
HP
MODEL CB
CONNECTION SIZE
(IN NPT)
LOCATIONDIMENSION
ldquoArdquo (IN)
125-200 1-12 52
250-350 2 56
400 2 58
500 2-12 60
600 2-12 - 3 71
700-800 3 65
Figure A1-13 Standard Gas Train Connection Size and Location
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 3343
Model CBLE 125-800 HP Boilers
33
Oil-Fired Burners Fuel oil consumption information is shown on the boiler rating sheets in theDimensions and Rating Section
Figure A1-16 shows the oil connection sizes and locations for Model CB Boilersfiring No 2 oil
Figure A1-17 through Figure A1-18 show typical oil systems and layouts
Figure A1-19 and Figure A1-20 show the detail of an oil transfer tank (day tank)typically utilized to provide a storage reservoir between the oil system supply pumpand the boiler oil pump
General BoilerInformation
Table A1-24 shows blowdown tank sizing information
Table A1-25 provides heating surface information
Table A1-26 provides steam volume and disengaging area information
Table A1-27 provides recommended steam nozzle sizes
Table A1-28 provides recommended non-return valve sizes
Boiler RoomInformation
Figure A1-21 shows typical boiler room length requirements
Figure A1-22 shows typical boiler room width requirements
Figure A1-23 shows typical breeching arrangements
Stack SupportCapabilities
All standard Cleaver-Brooks Firetube Boilers with an LE option can support up to2000 lbs without additional support
LE Boilers 250 hp through 800 hp can be reinforced to support 3000 lbs
StackBreechingSize Criteria
The design of the stack and breeching must provide the required draft at each boilerflue gas outlet Proper draft is critical to burner performance
Although constant pressure at the flue gas outlet of the Model CB-LE is not requiredit is necessary to size the stackbreeching to limit flue gas pressure variation Theallowable pressure range is ndash025 WC to +025 WC
For additional information please review Section I4 General Engineering Data(Stacks) and Section F Stacks Stack and breeching sizes should always be providedby a reputable stack supplier who will design the stack and breeching system basedon the above criteria Your local Cleaver-Brooks authorized representative is capableof assisting in your evaluation of the stackbreeching design
Boiler RoomCombustion Air
When determining boiler room air requirements the size of the room air flow andvelocity of air must be reviewed as follows
1 Size (area) and location of air supply openings in boiler room
A Two (2) permanent air supply openings in the outer walls of the boiler room
are recommended Locate (1) at each end of the boiler room preferablybelow a height of 7 feet This allows air to sweep the length of the boiler
B Air supply openings can be louvered for weather protection but they shouldnot be covered with fine mesh wire as this type of covering has poor air flowqualities and is subject to clogging by dust or dirt
C A vent fan in the boiler room is not recommended as it could create a slightvacuum under certain conditions and cause variations in the quantity ofcombustion air This can result in unsatisfactory burner performance
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
34
D Under no condition should the total area of the air supply openings be lessthan (1) square foot
E Size the openings by using the formulaArea (sq-ft) = CFMFPM
2 Amount of air required (cfm)
A Combustion Air = Rated bhp x 8 cfmbhp
B Ventilation Air = Maximum bhp x 2 cfmbhp
C Total recommended air = 10 cfmbhp - up to 1000 feet elevation Add 3percent more per 1000 feet of added elevation
3 Acceptable air velocity in Boiler Room (fpm)
A From floor to (7) foot height - 250 fpm
B Above (7) foot height - 500 fpm
Example Determine the area of the boiler room air supply openings for (1) 300 hpboiler at 800 feet altitude The air openings are to be 5 feet above floor level
bull Air required 300 x 10 = 3000 cfm (from 2B above)
bull Air velocity Up to 7 feet = 250 fpm (from 3 above)
bull Area Required Area = cfm = 3000250 = 12 sq-ft total
bull AreaOpening 122 = 6 sq-ftopening (2 required)
Notice
Consult local codes which may supersede these requirements
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
35
This figure illustrates the basic gas valve arrangement on Cleaver-BrooksModel CB boiler and shows the contractors connection point The valves andcontrols between the contractor connection point and the gas main in thestreet are representative of a typical installation Actual requirements mayvary depending on local codes or local gas company requirements which
should be investigated prior to preparation of specifications and prior to con-struction
A Utilities service valveB Utilities service regulatorC Gas meterD Piping from meter to boiler
The size of the gas line from the meter to the gas pressure regulator at theboiler can be very important if gas pressures are marginal The gas line sizingis dependent on
1 Gas pressure at outlet of gas meter (C)2 Rate of gas flow required CFH3 Length of pipe run (D)4 Pressure required at contractor connection point
The local gas utility will advise the pressure that is available at the outlet oftheir meter
Figure A1-14 Typical Gas Piping Layout
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Model CBLE 125-800 HP Boilers
36
5
6
S
1
3
42
PILOT GAS LINE
S
S
MAIN GAS LINE
M M
ToBurner
GasSupply
11
10
97
12138
14 15
FLOW
FLOW
Figure A1-15 Model CB-LE Gas Train Components
BOILER
HP
MODEL CB
SUPPLYANDRE-
TURNCONN SIZES
(IN)(NPT)
A(IN)
RECOMMENDED OIL LINEA
SIZES(STANDARD PIPE)
(IN - IPS)
STOR-AGE
TANK TOBOILER
OR PUMPCONNECT
PUMPTO
BOILER
RE-TURN
LINE TOTANK
125150 200
34 12-12 1 1 1
250300350
34 34 1 1 1
400500600
34 11-34 1 1 1
700800
1 11-34 1 1 1
NOTE See No 2 Oil Line Sizing Instruction for systems with other conditions A For suction line condition with a maximum of 10 Feet of lift and a
total of 100 feet of suction line
Figure A1-16 No2 Oil Connection Size Location and Recommended Line Sizes
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Model CBLE 125-800 HP Boilers
37
Figure A1-17 No 2 Oil Piping Single Boiler
Installation Remote Oil Pump
Figure A1-18 No 2 Oil Piping Multiple Boiler
Installation Remote Oil Pumps
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
38
Figure A1-19 No 2 Oil Piping Multiple Boiler
Installation
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
39
Figure A1-20 No 2 Oil Piping Typical Arrangement
Table A1-24 Model CB-LE Blowdown
Tank Sizing
BOILER HP WATER (GAL)
125 97
150 118
200 145
250 146
300 176
350 210
400 177
500 209
600 250
700 800 296
NOTE Quantity of water removed from boiler by lowering normal water line 4
BOILER
HP
HEATING SURFACE (SQ-FT)
FIRESIDE WATERSIDE
125 625 679
150 750 820
200 1000 1092
250 1250 1346
300 1500 1623
350 1750 1932
400 2000 2151
500 2500 2691
600 3000 3262
700 800 3500 3810
Table A1-25 Heating Surface Model CB-LE
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Model CBLE 125-800 HP Boilers
40
BOILER HPSTEAM VOLUME CU-FT
STEAM DISENGAGING AREASQ-IN
HIGH PRESSUREA LOW PRESSUREB HIGH PRESSUREA LOW PRESSUREB
125 254 366 5371 5887
150 307 443 6511 7138
200 377 544 7985 8752
250 492 706 7980 8695
300 595 853 9651 10516
350 709 1017 11507 12538
400 721 979 9793 10593
500 837 1137 11376 12303
600 1015 1378 13787 14911
700-800 1198 1627 16273 17600
NOTE Based on normal water levelA Based on 150 psig design pressureB Based on 15 psig design pressure
Table A1-26 Steam Volume and Disengaging Area
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Model CBLE 125-800 HP Boilers
41
BOILERHP
BOILERCAPACITY(LBSHR)
OPERATING PRESSURES (PSIG)
50 75 100 125 150 175 200 250
100 3450
2-12 2-12 NA NA NA NA NA NA
125 4313 3 2-12 2-12 2-12 NA NA NA NA
150 5175 3 3 2-12 2-12 2-12 2-12 NA NA
200 6900 3 3 3 3 3 2-12 2-12 2-12
250 8625 4 3 3 3 3 3 3 3
300 10350 4 4 4 3 3 3 3 3
350 12025 4 4 4 4 4 3 3 3
400 13800 5 4 4 4 4 4 4 3
500 17210 6 5 5 4 4 4 4 4
600 20700 6 6 5 5 5 4 4 4
700 24150 6 6 6 5 5 5 5 4
800 27600 6 6 6 6 6 5 5 5
NOTE Valve sizes (300 Flanges) given in inchesStandard Non-Return valve selections limited to a maximum 2 to 1 turndown(50 of full load) selections based on typical non-return valve sizing recommen-dations For final valve selection contact your C-B authorized representative Forhigh turndown applications see Boiler Book Section I3 Table I3-3 Indicates pressure drop of less than 75 psig All other selections are less than6 psig pressure drop
Boiler HP
OPERATINGPRESSURE
PSIG125 150 200 250 300 350 400 500 600 700 800
15 8 8 10 10 12 12 12 12 12 12 12
30 6 6 8 8 8 10 10 10 12 12 12
40 6 6 6 8 8 8 10 10 10 12 12
50 6 6 6 6 8 8 8 10 10 10 12
75 4 4 6 6 6 8 8 8 8 10 10
100 4 4 6 6 6 6 6 8 8 8 10
125 4 4 4 6 6 6 6 8 8 8 8
150 3 3 4 4 6 6 6 6 6 8 8
200 25 3 4 4 4 4 6 6 6 6 6
250 25 3 3 4 4 4 4 6 6 6 6
NOTES1 Steam nozzle sizes given in inches2 Recommended steam nozzle sizes based on 4000 to 5000 fpm steam velocity3 All standard steam nozzle sizes for 150 psig design pressure or greater are the sameas 125 psig operating pressure on the above table To increase or decrease the standardsize request the change with your local Cleaver-Brooks authorized representative4 Shaded area denotes special surge load baffles must be installed to avoid possible wa-ter carry-over5 For incremental operating pressures see Table I3-1 Steam Systems Fundamentals
Table A1-28 Recommended Steam Nozzle Size (for
4000 to 5000 fpm nozzle velocity)
Table A1-29 Recommended Non-Return Valve Size
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Model CBLE 125-800 HP Boilers
42
1 Shortest boiler room length (Dwg A) is obtained by allowing for possible future tube replacement (from front or rearof boiler) through a window or doorway Allowance is only made for minimum door swing at each end of the boilerThis arrangement provides sufficient aisle space at the front of the boiler but a ldquotightrdquo space condition at the rear
If space permits approximately 15 additional feet should be allowed at the rear for additional aisle and workingspace
2 Next shortest boiler room length (Dwg B) is obtained by allowing for possible future tube replacement from thefront of the boiler Allowance is only made for minimum door swing at the rear
If space permits approximately 15 additional feet should be allowed at the rear for additional aisle and workingspace
3 A slightly longer boiler room (Dwg C) is obtained by allowing for possible future tube replacement from the rear ofthe boiler Allowance for door swing at the front provides sufficient aisle and working space at the front
Figure A1-21 Boiler Room Length (Typical Layouts)
BOILER HP 125-200 250-350 400-800
Dimension A 82 93 102
Dimension B 115 141 171
NOTES1 Recommended Minimum Distance Between Boiler and Wall Dimen-
sion ldquoArdquo allows for a ldquoclearrdquo 42 aisle between the water col-umn on the boiler and the wall If space permits this aisle
should be widened 2 Recommended Minimum Distance Between BoilersDimension ldquoBrdquo between boilers allows for a ldquoclearrdquo aisle of42 - 125 -200 hp48 - 250-350 hp60 - 400-800 hpIf space permits this aisle should be widened
Figure A1-22 Boiler Room Width (Typical Layout)
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Model CBLE 125-800 HP Boilers
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
14
BOILER HP DIM 250 300 350
LENGTHS
Overall (60 ppm System) A 191-12 220 252
Shell B 144 171 201
Base Frame C 131 158 188
Front Head Extension (60 ppm System) D 23-12 25 27
Rear Head Extension E 24 24 24
Front Ring Flange to Return H 103-12 130 160
Front Ring Flange to Outlet HH 131 158 188
Ring Flange to Base F 12 12 12
Over Tubesheets V 129 156 186
Shell Extension P 15 15 15
Rear Flange Ring to Base G 12-12 12-12 12-12
Table A1-7 Model CB-LE Hot Water Boiler Dimensions78rdquo (30 and 125 psig Design Pressure) - Sheet 1 of 2
Figure A1-5 CB-LE Hot Water 250-350 HP
s k o o r B r e v a
e l C
R
F G
WW
P
BB
D E
GG
Q
Z
Y T U
RR - RF - RD
X
HH
A
B
HI
L K
OOO
KK
M
N
EE
FF
DD
V
J
C
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
15
BOILER HP DIM 250 300 350
WIDTHS
Overall I 93 93 93
ID Boiler J 78 78 78
Center to Entrance Box K 51 51 51
Center to Outside Hinge KK 51 51 51
Center to Lagging L 42 42 42
Base Outside M 64 64 64
Base Inside N 52 52 52
HEIGHTS
Overall OO 115 115 115
Base to Vent Outlet O 106 106 106
Base to Return and Outlet X 101-12 101-12 101-12
Height of Base Q 10 10 10
Base to Bottom of Boiler R 17 17 17
BOILER CONNECTION
Auxiliary Connection Z 1-14 1-14 1-14
Water Return Flange (2 Dip Tube included) T 8A 8A 8A
Water Outlet Flange (2 Dip Tube Included) U 8A 8A 8A
Air Vent Y 1-12 1-12 1-12
Drain Front and Rear W 2 2 2
VENT STACK
Diameter (flgd connection) BB 20 20 20
MINIMUM CLEARANCES
Rear Door Swing DD 43 43 43
Front Door Swing EE 89 89 89
Tube Removal Rear FF 131 157 187
Tube Removal Front GG 116 142 172
MINIMUM BOILER ROOM LENGTH ALLOWING FOR DOOR SWING AND TUBE REMOVAL FROM
Rear of Boiler RR 364 417 477
Front of Boiler RF 303 356 416
Thru Window or Doorway RD 275 302 332
WEIGHT IN LBS
Water Capacity Flooded 13880 16840 20090
Approx Ship Wgt ndash 30 psigApprox Ship Wgt ndash 125 psig
2140022200
2350024300
2670027500
NOTES All connections are threaded unless indictedA ANSI 150 psig flange
Table A1-7 Model CB-LE Hot Water Boiler Dimensions
78rdquo (30 and 125 psig Design Pressure) - Sheet 2 of 2
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
16
BOILER HP DIM 400 500 600 700 800
LENGTHS
Overall (60 ppm System) A 206 228 262 299 300
Shell B 147 168 200 233 233
Base Frame C 134 155 187 220 220
Front Head Extension (60 ppm System) D 27 28 30 34 35
Rear Head Extension E 32 32 32 32 32
Shell Ring Flange to Base F 12 12 12 12 12
Rear Ring Flange to Base G 12-12 12-12 12-12 12-12 12-12
Shell Flange to Outlet HH 139-12 156-12 182-12 216-12 216-12
Shell Flange to Return H 107 125 151-12 185 185
Over Tubesheets V 130 151 183 216 216
Shell Extension P 17 17 17 17 17
Table A1-8 Model CB-LE Hot Water Boiler Dimensions96rdquo (30 and 125 psig Design Pressure) - Sheet 1 of 2
Figure A1-6 CB-LE Hot Water 400-800 HP
s k o o r B r e v a
e l C
R
F G
WW
P
BB
D E
GG
Q
Z
Y T U
RR - RF - RD
X
HH
A
B
HI
L K
OOO
KK
M
N
EE
FF
DD
V
J
C
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 1743
Model CBLE 125-800 HP Boilers
17
WIDTHS
Overall I 113 113 113 113 115
ID Boiler J 96 96 96 96 96
Center to Entrance Box K 62 62 62 62 64
Center to Outside Hinge KK 62 62 62 62 62
Center to Lagging L 51 51 51 51 51
Base Outside M 72 72 72 72 72
Base Inside N 56 56 56 56 56
HEIGHTS
Overall OO 134 134 134 134 134
Base to Vent Outlet O 126 126 126 126 126
Height of Base Q 12 12 12 12 12
Base to Bottom of Boiler R 19 19 19 19 19
Base to Return and Outlet X 121-916 121-916 121-916 121-916 121-916
BOILER CONNECTIONS
Auxiliary Connection Z 1-14 1-14 1-14 1-14 1-14
Drain Front and Rear W 2 2 2 2 2
Water Return T 10A 10A 12A 12A 12A
Water Outlet (2rdquo Dip Tube Included) U 10A 10A 12A 12A 12A
Air Vent Y 2 2 2 2 2
VENT STACK
Diameter (Flanged Connection) BB 24 24 24 24 24
MINIMUM CLEARANCES
Rear Door Swing DD 53 53 53 53 53
Front Door Swing EE 108 108 108 108 108
Tube Removal Rear FF 131 152 184 217 217
Tube Removal Front GG 114 135 167 200 200
MINIMUM BOILER ROOM LENGTH ALLOWING FOR DOOR SWING AND TUBE REMOVAL FROM
Rear of Boiler RR 386 428 492 558 558
Front of Boiler RF 314 356 420 486 486
Thru Window or Doorway RD 308 329 361 394 394
WEIGHT IN LBS
Normal Water Capacity 20015 23300 28260 33360 33360
Approx Ship Wgt ndash 30 psig
Approx Ship Wgt ndash 125 psig
33300
37270
36900
40780
42150
46005
49650
53300
49750
53400
NOTES All connections are threaded unless indicated
A ANSI 150 psig flange
BOILER HP DIM 400 500 600 700 800
Table A1-8 Model CB-LE Hot Water Boiler Dimensions
96rdquo (30 and 125 psig Design Pressure) - Sheet 2 of 2
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
18
BOILER HP
MOTOR HP
60PPM
30PPM
25PPM
20PPM
125 5 10 5 10
150 75 10 10 10
200 15 15 20 NA
250 75 10 15 15
300 10 15 20 30
350 15 25 40 40
400 10 15 20 20
500 15 20 25 30
600 25 30 50 60
700 30 50 75 75
800 50 75 NA NA
NOTES For elevations above 700rsquo - contact your local
Cleaver-Brooks authorized representative
Table A1-9 Model CB-LE Blower Motor Selection -
Operating Pressures 150 psig and Less and All Hot
Water Boilers
BOILER HP
MOTOR HP
60
PPM
30
PPM
25
PPM
20
PPM
125 5 10 10 10
150 10 10 10 15
200 15 20 20 NA
250 75 10 15 20
300 10 20 30 40
350 20 30 40 50
400 10 15 20 25
500 20 25 30 40
600 25 40 60 60
700 40 60 75B 75C
800 60 75A NA NA
NOTES For elevation above 700rsquo - contact your local
Cleaver-Brooks authorized representative
A Downrate to 770 hp
B Downrate to 675 hp
C Downrate to 660 hp
Table A1-10 Model CB-LE Blower Motor Selection -
Operating Pressures Greater than 150 psig (Steam
Boilers)
09-09
Table A1-11 Blower Motor Selection CB-LE NTI BoilersTable A1-12 Turndown Guarantee for CB-LE NTI
Boilers - Natural Gas amp 2 Oil
Boiler SizeTurndown
9 ppm 15 ppm
125 41 41
150 41 51
200 41 51
250 51 51
300 51 51
350 51 51
400 51 61
500 51 61
600 61 61
700 71 71
800 71 71
800 HP to be derated to 720 HP for 9 ppm and 750 HP
for 15 ppm
Altitude 700 ft and less - Design Pressure 150 psi and less
800 HP - to be de-rated to 720 HP for 9 ppm and to 750 HP for 15 ppm
mpp9mpp51Nominal
Boiler Size Blower Motor HP Blower Motor HP
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Model CBLE 125-800 HP Boilers
19
BOILER HPFUEL
SERIES
HOT WATER STEAM
30 PSIG 125 PSIG 15 PSIG 150 PSIG 200 PSIG
125100 11200 11600 11300 12000 12600200 11400 11800 11500 12400 13000
700 11300 11700 11400 12300 12900
150
100 12300 12700 12400 13200 13900
200 12500 12900 12600 13500 14200
700 12300 12700 12400 13300 14000
200
100 14400 14800 14500 15500 16300
200 14500 14900 14600 15600 16400
700 14500 14900 14600 15600 16400
250
100 20700 21500 20800 22000 23800
200 21400 22200 21500 22800 24600
700 20900 21700 21000 22500 24300
300
100 23100 23900 23200 24800 26800
200 23500 24300 23600 25200 27200
700 23400 24200 23500 25000 27000
350
100 26200 27000 26300 27600 29100
200 26700 27500 26800 27800 29300
700 26400 27200 26500 27700 29200
400
100 33000 36970 33200 36270 39380
200 33300 37270 33500 36570 39680
700 33200 37170 33400 36470 39580
500
100 36600 40470 36810 39670 43480
200 36900 40780 37110 39970 43580
700 36800 40680 37010 39870 43280
600
100 41850 45905 42000 44725 49100
200 42150 46005 42300 45025 49400
700 42050 45915 42200 44925 49300
700800
100 49450 53000 49300 51850 57015
200 49750 53300 49600 52150 57315
700 49650 53200 49500 52050 57215
NOTES1 Weights shown are based on standard product offering for current listed boilers If units are of special design and construction actual weightwill be determined at time of shipment Shipment will then be made on shippers weight and count All weights are in US pounds
Table A1-13 Model CB-LE Boiler Weights
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Model CBLE 125-800 HP Boilers
20
VALVE
SETTING15 PSIG STEAM 100 PSIG STEAM 125 PSIG STEAM 150 PSIG STEAM 200 PSIG STEAM 250 PSIG STEAM 300 PSIG STEAM
BOILERHP
NO OF
VALVES-REQD
OUTLET
SIZE(IN)
NO OF
VALVES-REQD
OUTLET
SIZE(IN)
NO OF
VALVESREQD
OUTLET
SIZE(IN)
NO OF
VALVES-REQD
OUTLET
SIZE(IN)
NO OF
VALVES-REQD
OUTLET
SIZE(IN)
NO OF
VALVESREQD
OUTLET
SIZE(IN)
NO OF
VALVESREQD
OUTLET
SIZE(IN)
125 1 3 2 1-12 2(1) 1-12(1) 1-14
2(1) 1-12(1) 1-14
2(1) 1-14(1) 1
2 1 2 1
150 1 3 2(1) 2(1) 1-12
2 1-14 2(1) 1-12(1) 1-14
2(1) 1(1) 1-14
2 1 2 1
200 2 2-12 2 2 2 1-12 2 1-12 2(1) 1-12(1) 1-14
2 1-14 2(1) 1(1) 1-14
250 2(1) 2-12(1) 3
2(1) 2-12(1) 2
2(1)2(1)1-12
2(1) 2(1) 1-12
2(1)1-12(1)1-14
2(1) 1-12(1) 1-14
2 1-14
300 2 3 2(1) 2-12(1) 2
2 2 2(1) 2(1) 1-12
2 1-12 2(1)1-12(1)1-14
2(1) 1-12(1) 1-14
350 3(1) 2(2) 3
3(1) 2-12(2) 2
2(1)2(1)1-12
2 2 2(1) 1-12(1) 2
2 1-12 2(1) 1-12(1) 1-14
400 3(2) 3(1) 2-12
3(1) 2(2) 2-12
2(1)2(1)2-12
2(1) 2-12(1) 2
2(1) 1-12(1) 2
2(1) 2(1) 1-12
2 1-12
500 3 (3) 3 3 2-12 2 2-12 2(1) 2-12(1) 2
2(1) 2(1) 2-12
2(1) 2(1)1-12
2(1) 1-12(1) 2
600 4 3 4(3) 2-12(1) 2
3 2-12 2 2-12 2(1) 2(1) 2-12
2 2 2 2
700 5(3) 3(2) 2-12
5(3) 2-12(2) 2
3 2-12 3(2) 2-12(1) 2
2 2-12 2(1) 2(1) 2-12
2 2
800 5(3) 3(2) 2-12
5(3) 2-12(2) 2
4(3) 2-12(1) 2
3(2) 2-12(1) 2
2 2-12 2(1) 2(1) 2-12
2(1) 2(1) 2-12
NOTES Valve manufacturers are Kunkle Consolidated or Conbraco depending on availability This table revised 042012
Table A1-14 Steam Boiler Safety Valve Openings
VALVE
SETTING 30 PSIG HW 60 PSIG HW 100 PSIG HW 125 PSIG HW
BOILER HPNO OF
VALVESREQD
OUTLETSIZE(IN)
NO OFVALVESREQD
OUTLETSIZE(IN)
NO OFVALVESREQD
OUTLETSIZE(IN)
NO OFVALVESREQD
OUTLETSIZE(IN)
125 1 2-12 1 2 1 2 1 1-14
150 1 2-12 1 2-12 1 2 1 2
200 2(1) 2-12(1) 1-14
1 2-12 1 2 1 2
250 2 (1) 2(1) 2-12
1 2-12 1 2-12 1 2
300 2 2-12 2(1) 1(1) 2-12
1 2-12 1 2-12
350 3(2) 2-12(1) 1
2(1) 2-12(1) 2
1 2-12 1 2-12
400 3 (1) 2(2) 2-12 2 (1) 2(2) 2-12 2 (1) 1(1) 2-12 1 2-12
500 4 (1) 1(3) 2-12
2 2-12 2(1) 2-12(1) 1-14
2(1) 1(1) 2-12
600 4(3) 2-12(1) 2
3(1) 1-1(2) 2-12
2(1) 2(1) 2-12
2(1) 2-12(1) 1-14
700 amp 800 5 (1) 1(4) 2-12
3(1) 2(2) 2-12
2 2-12 2(1) 2-12(1) 2
NOTES Hot water relief valves are Kunkle 537
Table A1-15 Hot Water Boiler Relief Valve Openings
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 2143
Model CBLE 125-800 HP Boilers
21
BOILER HP A B C D E F G X1 X2 X3
125 6 9 112 39-12 57-12 4 44-12 10 9-34 22-12
150 6 9 136 39-12 57-12 4 44-12 10 9-34 22-12
200 6 9 167 39-12 57-12 4 44-12 10 9-34 22-12
250 6 12 131 46 70 4 56 10 22 22-12
300 6 12 158 46 70 4 56 10 22 22-12
350 6 12 188 46 70 4 56 10 22 22-12
NOTE
All numbers in table are in inches
6-inch high mounting piers recommended for use beneath the boiler base frame The use of these piers provides increased inspection
accessibility to the piping beneath the boiler and added height for washing down the area beneath the boiler
Figure A1-7 Space Required to Open Rear Head on Model CB-LE Boilers Equipped with Davits
BOILER HPDIMENSIONS (INCHES)
A B C D E
CB-125 THRU CB-200 33 55 45 68 32
CB-250 THRU CB-350 42 69 58 86 43
CB-400 THRU CB-800 51 88 71 109 53
Figure A1-8 Model CB-LE Boiler Mounting Piers (60rdquo and 78rdquo)
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Model CBLE 125-800 HP Boilers
22
BOILER HP A B C D E F G
400 6 14 134 50 78 6-12 58-78
500 6 14 155 50 78 6-12 58-78
600 6 14 187 50 78 6-12 58-78
700-800 6 14 220 50 78 6-12 58-78
NOTE1 All numbers in table are in inches2 6-inch high mounting piers recommended for use beneath the boiler base frame The use of these piers provides in-
creased inspection accessibility to the piping beneath the boiler and added height for washing down the area beneaththe boiler
Figure A1-9 Model CB-LE Boiler Mounting Piers (96rdquo)
CBLE 250-350HP
CBLE 400-800HP
Motor HP Hole Number
75 1
15 1
25 2
40 3
Motor HP Hole Number
10 1
20 1
30 250 2
75 3
Figure A1-10 Front Davit Support
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Model CBLE 125-800 HP Boilers
23
BOILERHP
VIEW
ALL DIMENSIONS IN INCHES
A B C D E
125 All B 80-14 29-34 70-12 10 3
150 All B 80-14 29-34 83-12 10 3
200 All B 80-14 29-34 114-12 10 3
250Steam B 99 36 72 10 3
Hot Water B 99 36 81 10 3
300
Steam B 99 36 99 10 3
Hot Water B 99 36 108 10 3
350Steam B 99 36 129 10 3
Hot Water B 99 36 138 10 3
400Steam B 119 35-34 78 11 3
Hot Water B 119 35-34 78 11 3
500Steam B 119 35-34 99 11 3
Hot Water B 119 35-34 99 11 3
600Steam B 119 35-34 131 11 3
Hot Water B 119 35-34 131 11 3
700 amp 800Steam B 119 35-34 164 11 3
Hot Water B 119 35-34 164 11 3
NOTE A B and C dimensions may vary by 12 inch
Figure A1-11 Lifting Lug Location Model CB-LE Boilers
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Model CBLE 125-800 HP Boilers
24
PERFORMANCE DATA
The Low Emission Option provides NOx reduction at current published andpredicted fuel-to-steam efficiencies
Specifying BoilerEfficiency
Cleaver-Brooks offers an industry leading fuel-to-steam boiler efficiency guaranteefor Model CB-LE Firetube Boilers The guarantee is based on the fuel-to-steam
efficiencies shown in the efficiency tables and the following conditions Theefficiency percent number is only meaningful if the specific conditions of theefficiency calculations are clearly stated in the specification (see Cleaver-Brookspublication CB-7768 for a detailed description of efficiency calculations)
When specifying the efficiencies in the tables be sure to include the specificguarantee conditions to maximize the effectiveness of your efficiency specification Ifyou have any questions regarding the efficiency specifications please contact yourlocal Cleaver-Brooks authorized representative
EfficiencySpecification
The boiler manufacturer shall guarantee that at the time of startup the boiler willachieve fuel-to-steam efficiency (as shown in Table A1-16 and Table A1-17) at100 firing rate (add efficiency guarantees at 25 50 and 75 of rating if
required) If the boiler(s) fail to achieve the corresponding guaranteed efficiency aspublished the boiler manufacturer will rebate to the ultimate boiler owner tenthousand dollars ($10000) for every full efficiency point (10) that the actualefficiency is below the guaranteed level
The specified boiler efficiency is based on the following conditions
1 Fuel specification used to determine boiler efficiency
bull Natural Gas
Carbon (wt) = 6998Hydrogen (wt) = 2231Sulfur (wt) = 00
Heating value Btulb = 21830bull No 2 Oil
Carbon (wt) = 858Hydrogen (wt) = 127Sulfur (wt) = 02Heating value Btulb = 19420
No 6 Oil
Carbon (wt) = 866Hydrogen (wt) = 109Sulfur (wt) = 209Heating value Btulb = 18830
2 Efficiencies are based on ambient air temperature of 80 degF relative humidity of30 and 15 excess air in the exhaust flue gas
3 Efficiencies are based on manufacturerrsquos published radiation and convectionlosses (For Cleaver-Brooks radiation and convection losses see BoilerEfficiency Facts Guide publication number CB-7767)
4 Any efficiency verification testing will be based on the stack loss method
For efficiencies and stack temperatures at operating pressures not listed followthese procedures
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Model CBLE 125-800 HP Boilers
25
When the operating steam pressure is between 10 psig and 125 psig interpolatethe values from the efficiency tables
When the operating steam pressure is above 125 psig estimated efficiency can becalculated as follows
Example
Boiler 350 hpFuel natural gas
Operating steam pressure 200 psig
Find the fuel-to-steam efficiency at 100 firing rate From Table A1-16 for a 350hp boiler operating at 100 firing rate and an operating steam pressure of 125psig the efficiency is 825
Using Figure A1-12 note that the stack temperature increases 36 degF at the higheroperating pressure To estimate boiler efficiency use this rule of thumb For every40 degF increase in stack temperature efficiency decreases by 1 Since the stacktemperature rise is 36 degF the decrease in the boiler efficiency at 200 psig operatingpressure is calculated as follows 3640 =9 Therefore the boiler efficiency at200 psig operating pressure is 825 -9 = 816
Emissions The emission data included in this section consists of typical emission levels forModel CB boilers equipped with 60 30 25 and 20 ppm LE Options when firingnatural gas and No 2 oil
Notice
The data in Table A1-18 and Table A1-19 represent typical emission levels only
Guaranteed emission levels are available from your local Cleaver-Brooks authorized
representative
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Model CBLE 125-800 HP Boilers
26
BOILER
HP
OPERATING PRESSURE = 10 psig OPERATING PRESSURE = 125 psig
OF LOAD OF LOAD
25 50 75 100 25 50 75 100
125 833 836 834 832 804 809 810 810
150 844 846 845 843 815 820 820 821
200 850 853 851 849 822 827 827 827
250 850 847 840 833 820 820 816 813
300 853 853 846 839 826 827 822 819
350 853 857 852 845 826 832 828 825
400 845 847 846 844 818 822 824 822
500 855 857 855 852 828 832 833 831
600 857 860 858 856 829 835 836 835
700 857 862 860 857 830 836 836 836
800 858 861 859 856 831 836 837 835
Table A1-16 Predicted Fuel-to-Steam Efficiencies - Natural Gas
Figure A1-12 Predicted Stack Temperature Increase for Pressure Greater Than 125 psig
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Model CBLE 125-800 HP Boilers
27
Table A1-18 CB-LE Boilers - Natural Gas Emission Levels
POLLUTANT
ESTIMATED LEVEL
60 ppm 30 ppm 25 ppm 20 ppm 15 ppm 9 ppm
CO ppmA
lbMMBtu
50150B
004011
50150B
004011
50150B
004011
50150B
004011
50
004
50
004
NOx ppmA
lbMMBtu
60
007
30
0035
25
003
20
0024
15
0018
9
0011
SOx ppmA
lbMMBtu
1
0001
1
0001
1
0001
1
0001
1
0001
1
0001
HCVOC5 ppmA
lbMMBtu
10
0004
10
0004
10
0004
10
0004
10
0004
10
0004
PM ppmA
lbMMBtu
-
001
-
001
-
001
-
001
-
001
-
001
A ppm levels are given on a dry volume basis and corrected to 3 oxygen (15 excess air)
B CO emission for 60 30 25 amp 20 ppm system is 50 ppm (004 lbMMBtu) when boiler is operating above 50 of rated capacity
CO emission is 150 ppm (011 lbMMBtu) when boiler is operating below 50 of rated capacity
Table A1-17 Predicted Fuel-to-Steam Efficiencies - No 2 Oil
BOILER
HP
OPERATING PRESSURE = 10 psig OPERATING PRESSURE = 125 psig
OF LOAD OF LOAD
25 50 75 100 25 50 75 100
125 867 869 867 866 837 842 843 843
150 878 880 878 876 848 853 853 854
200 884 887 884 882 856 860 860 860
250 883 881 874 867 853 853 849 847
300 886 887 880 873 859 860 855 852
350 886 890 885 878 859 866 861 858
400 879 881 879 876 851 855 856 855
500 889 890 889 886 861 865 866 864
600 890 894 892 890 862 868 869 868
700 891 895 893 891 863 869 870 869
800 892 895 893 890 864 869 870 868
Table A1-19 CB-LE Boilers - No 2 Oil Emission Levels
POLLUTANTESTIMATED LEVEL
60 ppm LE Option 30 25 20 ppm LE Option 15 ppm 9 ppm
CO ppmA
lbMMBtu
50
0039
50
0039
50
0039
50
0039
NOx ppmA
lbMMBtu140
018690
012085
011370
0093
SOx ppmA
lbMMBtu
278
052
278
052
278
052
278
052
HCVOCs ppmA
lbMMBtu
4
0002
4
0002
4
0002
4
0002
PM ppmA
lbMMBtu
-
0025
-
0025
-
0025
-
0025
A ppm levels are given on a dry volume basis and corrected to 3 oxygen (15 excess air)
BASED ON THE FOLLOWING CONSTITUENT LEVELS
Fuel-bound Nitrogen content = 0015 by weight
Sulfur content = 05 by weight
Ash content = 001 by weight
09-09
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Model CBLE 125-800 HP Boilers
28
ENGINEERING DATA
Sound Level Table A1-20 gives a summary of predicted sound pressure levels for Model CBboilers with 30 ppm LE Options Contact your local Cleaver-Brooks authorizedrepresentative for sound levels or other LE Options
Units - The units for the sound level tables are dbA (decibels measured on the A-weighted scale) in reference to 00002 microbars (20 micro-Newtons per square
meter) Their reference are standardly used in specifying and reporting soundpressure levels on industrial equipment
Test Method - The sound pressure levels in the above tables were obtained fromtests in accordance with the ldquoABMA Test Code for the Measurement of Sound fromPackaged Boilersrdquo In accordance with this code the sound pressure levels reportedwere measured on the boiler centerline 4-12 feet vertically above the bottom of thebase rails and 3 feet horizontally in front of the end of the blower motor or frontsurface of the electrical cabinet
Sound Level Meter - The sound level meter used complies with ANSI S14 Type 1(Precision) The readings are taken with the meter set for slow response andcorrected for background levels
Sound Pressure - The large size boilers the need for auxiliary equipment and thenecessary interconnecting piping make it impractical (and sometimes impossible) toprovide a boiler testing environment which is suitable for taking the data needed todevelop Sound Pressure Power levels
Typical Values - Sound pressure levels (dbA) for the same boiler will vary betweenboiler rooms Sound levels will vary with motor type NOx levels and altitudes Inaddition variations will occur between different people using different sound meterson the same boiler And finally no two boilers can be expected to give precisely thesame sound levels For these reasons we can only predict but not guarantee soundlevels (dbA)
BOILER HP 125 150 200 250 300 350 400 500 600 700 800
HFO dbA 84 84 84 83 84 85 84 85 85 88 90
LFO dbA 82 82 83 81 82 83 82 83 83 84 89
HFG dbA 82 82 83 82 83 84 83 83 85 87 90
LFG dbA 81 81 82 81 82 83 81 81 82 84 88
NOTES1 Sound pressure levels measured on boilers operating in various locations and ex-
pressed in dbA are as shown2 Based on standard altitude fans and fan motors 60 Hz3 Contact your local Cleaver-Brooks authorized representative for sound levels of 60 25or 20 ppm LE Options
ABBREVIATIONS
HF = High Fire LF = Low Fire O = Oil G = Gas
Table A1-20 Model CBLE Predicted Sound Levels 30 ppm NOx Systemss
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Model CBLE 125-800 HP Boilers
29
Gas-Fired Burners Table A1-21 shows gas pressure with standard over- and undersized gas trains
Table A1-22 shows minimum required gas pressure altitude conversion
Figure A1-13 shows standard gas train sizes and locations for Model CB FiretubeBoilers
Figure A1-14 shows typical gas train piping layouts for multiple boiler applications
Figure A1-15 shows standard gas train components
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Model CBLE 125-800 HP Boilers
30
Table A1-21 Standard Undersize and Oversize Gas Trains
CBLE
BOILER HP GAS TRAINSIZE
UPSTREAMVALVE
DOWNSTREAMVALVE
EMISSIONS LEVEL 09 ppm 15 ppm 20 ppm 30 ppm 60 ppm UC
125 HP 15 in BB BB 33 - 49 psi 33 - 49 psi 08 - 50 psi 07 - 50 psi 07 - 50 psi 07 - 50 ps
125 HP 15 in PC PC 34 - 50 psi 34 - 50 psi 09 - 50 psi 08 - 50 psi 08 - 50 psi 08 - 50 ps
125 HP 20 in BB BB 31 - 33 psi 31 - 33 psi 06 - 08 psi 06 - 07 psi 05 - 07 psi 05 - 07 ps
125 HP 20 in PC PC 31 - 34 psi 31 - 34 psi 06 - 09 psi 06 - 08 psi 06 - 08 psi 05 - 08 ps
125 HP 25 in PC PC 30 - 31 psi 30 - 31 psi 04 - 06 psi 04 - 06 psi 04 - 05 psi 04 - 05 ps
125 HP 30 in PC PC 29 - 30 psi 29 - 30 psi 04 - 04 psi 04 - 04 psi 04 - 04 psi 03 - 04 ps
125 HP 40 in PC PC 29 - 29 psi 29 - 29 psi 04 - 04 psi 03 - 04 psi 03 - 04 psi 03 - 03 ps
150 HP 15 in BB BB 37 - 55 psi 39 - 58 psi 10 - 47 psi 09 - 50 psi 09 - 50 psi 09 - 50 ps
150 HP 15 in PC PC 38 - 57 psi 40 - 60 psi 11 - 42 psi 11 - 50 psi 10 - 50 psi 10 - 50 ps
150 HP 20 in BB BB 34 - 37 psi 36 - 39 psi 07 - 10 psi 06 - 09 psi 06 - 09 psi 06 - 09 ps
150 HP 20 in PC PC 34 - 38 psi 36 - 40 psi 07 - 11 psi 07 - 11 psi 07 - 10 psi 06 - 10 ps
150 HP 25 in PC PC 32 - 34 psi 34 - 36 psi 05 - 07 psi 04 - 06 psi 04 - 06 psi 04 - 06 ps
150 HP 30 in PC PC 32 - 32 psi 34 - 34 psi 04 - 05 psi 04 - 04 psi 04 - 04 psi 03 - 04 ps
150 HP 40 in PC PC 31 - 32 psi 33 - 34 psi 04 - 04 psi 03 - 04 psi 03 - 04 psi 03 - 03 ps
200 HP 15 in BB BB 46 - 69 psi 50 - 75 psi 16 - 50 psi 15 - 50 psi 15 - 50 ps
200 HP 15 in PC PC 48 - 72 psi 52 - 78 psi 18 - 50 psi 17 - 50 psi 17 - 50 ps
200 HP 20 in BB BB 41 - 46 psi 45 - 50 psi 10 - 16 psi 10 - 15 psi 10 - 15 ps
200 HP 20 in PC PC 41 - 48 psi 45 - 52 psi 11 - 18 psi 11 - 17 psi 10 - 17 ps
200 HP 25 in PC PC 38 - 41 psi 42 - 45 psi 07 - 10 psi 07 - 10 psi 06 - 10 ps
200 HP 30 in PC PC 36 - 38 psi 40 - 42 psi 06 - 07 psi 05 - 07 psi 05 - 06 ps
200 HP 40 in PC PC 36 - 36 psi 40 - 40 psi 05 - 06 psi 05 - 05 psi 04 - 05 ps
250 HP 15 in BB BB 41 - 62 psi 44 - 67 psi 24 - 50 psi 24 - 27 psi 24 - 26 psi 23 - 26 ps
250 HP 15 in PC PC 45 - 67 psi 48 - 72 psi 28 - 50 psi 27 - 28 psi 27 - 27 psi 27 - 27 ps
250 HP 20 in BB BB 33 - 38 psi 37 - 41 psi 16 - 24 psi 16 - 24 psi 16 - 24 psi 15 - 23 ps
250 HP 20 in PC PC 34 - 40 psi 37 - 43 psi 17 - 28 psi 17 - 27 psi 16 - 27 psi 16 - 27 ps
250 HP 25 in PC PC 29 - 33 psi 32 - 37 psi 11 - 16 psi 11 - 16 psi 11 - 16 psi 10 - 15 ps
250 HP 30 in PC PC 27 - 29 psi 31 - 32 psi 09 - 11 psi 09 - 11 psi 09 - 11 psi 09 - 10 ps
250 HP 40 in PC PC 26 - 27 psi 29 - 31 psi 08 - 09 psi 08 - 09 psi 08 - 09 psi 08 - 09 ps
300 HP 15 in - 20 in BB BB 55 - 83 psi 57 - 85 psi 30 - 50 psi 30 - 36 psi 30 - 35 psi 30 - 35 ps
300 HP 15 in - 20 in PC PC 58 - 87 psi 60 - 90 psi 33 - 50 psi 33 - 37 psi 33 - 36 psi 33 - 36 ps
300 HP 20 in BB BB 46 - 55 psi 47 - 57 psi 21 - 30 psi 21 - 30 psi 20 - 30 psi 20 - 30 ps
300 HP 20 in PC PC 47 - 58 psi 48 - 60 psi 22 - 33 psi 22 - 33 psi 21 - 33 psi 21 - 33 ps
300 HP 30 in PC PC 39 - 46 psi 40 - 47 psi 13 - 21 psi 13 - 21 psi 12 - 20 psi 12 - 20 ps
300 HP 40 in PC PC 37 - 39 psi 39 - 40 psi 11 - 13 psi 11 - 13 psi 10 - 12 psi 10 - 12 ps
350 HP 15 in - 20 in BB BB 64 - 90 psi 62 - 90 psi 42 - 50 psi 42 - 50 psi 41 - 50 psi 41 - 50 ps
350 HP 15 in - 20 in PC PC 68 - 90 psi 66 - 90 psi 46 - 50 psi 46 - 50 psi 45 - 50 psi 45 - 50 ps
350 HP 20 in BB BB 54 - 64 psi 53 - 62 psi 32 - 42 psi 32 - 42 psi 32 - 41 psi 31 - 41 ps
350 HP 20 in PC PC 56 - 68 psi 54 - 66 psi 34 - 46 psi 34 - 46 psi 33 - 45 psi 33 - 45 ps
350 HP 25 in PC PC 43 - 54 psi 42 - 53 psi 21 - 32 psi 21 - 32 psi 20 - 32 psi 20 - 31 ps
350 HP 30 in PC PC 40 - 43 psi 38 - 42 psi 17 - 21 psi 17 - 21 psi 17 - 20 psi 16 - 20 ps
350 HP 40 in PC PC 37 - 40 psi 36 - 38 psi 15 - 17 psi 15 - 17 psi 14 - 17 psi 14 - 16 ps
400 HP 15 in - 20 in BB BB 69 - 90 psi 69 - 90 psi 46 - 50 psi 46 - 50 psi 45 - 50 psi 45 - 50 ps
400 HP 15 in - 20 in PC PC 74 - 90 psi 75 - 90 psi 51 - 87 psi 51 - 77 psi 51 - 77 psi 51 - 77 ps
400 HP 20 in BB BB 55 - 69 psi 56 - 69 psi 32 - 46 psi 32 - 46 psi 32 - 45 psi 32 - 45 ps
400 HP 20 in PC PC 57 - 74 psi 58 - 75 psi 34 - 50 psi 34 - 50 psi 34 - 50 psi 34 - 50 ps
400 HP 25 in PC PC 41 - 55 psi 42 - 56 psi 18 - 32 psi 18 - 32 psi 18 - 32 psi 18 - 32 ps
400 HP 30 in PC PC 37 - 41 psi 38 - 42 psi 13 - 18 psi 13 - 18 psi 13 - 18 psi 13 - 18 ps
400 HP 40 in PC PC 34 - 37 psi 35 - 38 psi 11 - 13 psi 10 - 13 psi 10 - 13 psi 10 - 13 ps
500 HP 20 in - 25 in BB PC 58 - 76 psi 58 - 76 psi 46 - 50 psi 46 - 50 psi 45 - 50 psi 45 - 50 ps
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Model CBLE 125-800 HP Boilers
31
BB = Butter Ball PC = Plug Cock
NOTE In cases where the gas train increases in size after the regulating valve two diameters are listed The first number is the customer connection size
500 HP 20 in - 25 in PC PC 60 - 83 psi 60 - 83 psi 48 - 50 psi 47 - 50 psi 47 - 50 psi 47 - 50 psi
500 HP 25 in PC PC 39 - 58 psi 39 - 58 psi 27 - 46 psi 27 - 46 psi 27 - 45 psi 26 - 45 psi
500 HP 30 in PC PC 33 - 39 psi 33 - 39 psi 20 - 27 psi 20 - 27 psi 20 - 27 psi 20 - 26 psi
500 HP 40 in PC PC 28 - 33 psi 28 - 33 psi 16 - 20 psi 16 - 20 psi 15 - 20 psi 15 - 20 psi
600 HP 20 in - 25 in BB PC 80 - 90 psi 80 - 90 psi 65 - 90 psi 65 - 90 psi 64 - 89 psi 63 - 88 psi
600 HP 20 in - 25 in PC PC 82 - 90 psi 82 - 90 psi 67 - 100 psi 67 - 100 psi 66 - 99 psi 66 - 99 psi
600 HP 25 in PC PC 54 - 80 psi 54 - 80 psi 39 - 50 psi 38 - 50 psi 38 - 50 psi 37 - 50 psi
600 HP 25 in - 30 in PC PC 52 - 54 psi 52 - 54 psi 37 - 39 psi 36 - 38 psi 35 - 38 psi 35 - 37 psi
600 HP 30 in PC PC 43 - 52 psi 43 - 52 psi 28 - 37 psi 27 - 36 psi 27 - 35 psi 26 - 35 psi
600 HP 40 in PC PC 37 - 43 psi 37 - 43 psi 22 - 28 psi 21 - 27 psi 20 - 27 psi 20 - 26 psi
700 HP 20 in - 30 in BB PC 110 - 150 psi 107 - 150 psi 87 - 131 psi 86 - 130 psi 86 - 129 psi 86 - 128 psi
700 HP 20 in - 30 in PC PC 113 - 150 psi 110 - 150 psi 90 - 135 psi 89 - 134 psi 89 - 134 psi 89 - 133 psi
700 HP 25 in - 30 in PC PC 71 - 90 psi 68 - 90 psi 48 - 50 psi 47 - 50 psi 47 - 50 psi 46 - 50 psi
700 HP 30 in PC PC 60 - 71 psi 57 - 68 psi 36 - 48 psi 36 - 47 psi 35 - 47 psi 35 - 46 psi
700 HP 40 in PC PC 51 - 60 psi 48 - 57 psi 28 - 36 psi 27 - 36 psi 27 - 35 psi 26 - 35 psi
800 HP 20 in - 30 in BB PC 108 - 150 psi 107 - 150 psi 106 - 150 psi
800 HP 20 in - 30 in PC PC 112 - 150 psi 111 - 150 psi 110 - 150 psi800 HP 25 in - 30 in PC PC 61 - 90 psi 60 - 100 psi 59 - 100 psi
800 HP 30 in PC PC 48 - 61 psi 47 - 50 psi 46 - 50 psi
800 HP 40 in PC PC 35 - 48 psi 34 - 47 psi 34 - 46 psi
Standard Gas Train size is highlighted
Table A1-21 Standard Undersize and Oversize Gas Trains (Continued)
CBLE
BOILER HP GAS TRAINSIZE
UPSTREAMVALVE
DOWNSTREAMVALVE
EMISSIONS LEVEL 09 ppm 15 ppm 20 ppm 30 ppm 60 ppm UC
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Model CBLE 125-800 HP Boilers
32
ALTITUDE(FT)
CORRECTIONFACTOR
ALTITUDE(FT)
CORRECTIONFACTOR
1000 104 6000 1252000 107 7000 130
3000 111 8000 135
4000 116 9000 140
5000 121 - -
To obtain minimum required gas pressure at altitudesabove 700 feet multiply the pressure by the listed factorsInches WC x 0577 = ozsq-inOzsq-in x 1732 = Inches WCInches WC x 00361= psigOzsq-in x 00625 = psigPsig x 2771 = Inches WCPsig x 160 = Ozsq-in
Table A1-22 Minimum Required Regulated Gas Pressure
Altitude Conversion
BOILERHP
TYPE OF GAS AND HEAT CONTENT
NATURAL GAS1000 (Btucu-ft)
PROPANE GAS2550 (Btucu-ft)
125 5103 2000
150 6124 2402
200 8165 3202
250 10206 4002
300 12247 4802
350 14280 5600
400 16329 6404
500 20415 8006
600 24494 9605
700 28576 11206
800 32659 12807
Table A1-23 Maximum Gas Consumption (CFH)
for Natural Gas and Propane Vapor
BOILER
HP
MODEL CB
CONNECTION SIZE
(IN NPT)
LOCATIONDIMENSION
ldquoArdquo (IN)
125-200 1-12 52
250-350 2 56
400 2 58
500 2-12 60
600 2-12 - 3 71
700-800 3 65
Figure A1-13 Standard Gas Train Connection Size and Location
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Model CBLE 125-800 HP Boilers
33
Oil-Fired Burners Fuel oil consumption information is shown on the boiler rating sheets in theDimensions and Rating Section
Figure A1-16 shows the oil connection sizes and locations for Model CB Boilersfiring No 2 oil
Figure A1-17 through Figure A1-18 show typical oil systems and layouts
Figure A1-19 and Figure A1-20 show the detail of an oil transfer tank (day tank)typically utilized to provide a storage reservoir between the oil system supply pumpand the boiler oil pump
General BoilerInformation
Table A1-24 shows blowdown tank sizing information
Table A1-25 provides heating surface information
Table A1-26 provides steam volume and disengaging area information
Table A1-27 provides recommended steam nozzle sizes
Table A1-28 provides recommended non-return valve sizes
Boiler RoomInformation
Figure A1-21 shows typical boiler room length requirements
Figure A1-22 shows typical boiler room width requirements
Figure A1-23 shows typical breeching arrangements
Stack SupportCapabilities
All standard Cleaver-Brooks Firetube Boilers with an LE option can support up to2000 lbs without additional support
LE Boilers 250 hp through 800 hp can be reinforced to support 3000 lbs
StackBreechingSize Criteria
The design of the stack and breeching must provide the required draft at each boilerflue gas outlet Proper draft is critical to burner performance
Although constant pressure at the flue gas outlet of the Model CB-LE is not requiredit is necessary to size the stackbreeching to limit flue gas pressure variation Theallowable pressure range is ndash025 WC to +025 WC
For additional information please review Section I4 General Engineering Data(Stacks) and Section F Stacks Stack and breeching sizes should always be providedby a reputable stack supplier who will design the stack and breeching system basedon the above criteria Your local Cleaver-Brooks authorized representative is capableof assisting in your evaluation of the stackbreeching design
Boiler RoomCombustion Air
When determining boiler room air requirements the size of the room air flow andvelocity of air must be reviewed as follows
1 Size (area) and location of air supply openings in boiler room
A Two (2) permanent air supply openings in the outer walls of the boiler room
are recommended Locate (1) at each end of the boiler room preferablybelow a height of 7 feet This allows air to sweep the length of the boiler
B Air supply openings can be louvered for weather protection but they shouldnot be covered with fine mesh wire as this type of covering has poor air flowqualities and is subject to clogging by dust or dirt
C A vent fan in the boiler room is not recommended as it could create a slightvacuum under certain conditions and cause variations in the quantity ofcombustion air This can result in unsatisfactory burner performance
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Model CBLE 125-800 HP Boilers
34
D Under no condition should the total area of the air supply openings be lessthan (1) square foot
E Size the openings by using the formulaArea (sq-ft) = CFMFPM
2 Amount of air required (cfm)
A Combustion Air = Rated bhp x 8 cfmbhp
B Ventilation Air = Maximum bhp x 2 cfmbhp
C Total recommended air = 10 cfmbhp - up to 1000 feet elevation Add 3percent more per 1000 feet of added elevation
3 Acceptable air velocity in Boiler Room (fpm)
A From floor to (7) foot height - 250 fpm
B Above (7) foot height - 500 fpm
Example Determine the area of the boiler room air supply openings for (1) 300 hpboiler at 800 feet altitude The air openings are to be 5 feet above floor level
bull Air required 300 x 10 = 3000 cfm (from 2B above)
bull Air velocity Up to 7 feet = 250 fpm (from 3 above)
bull Area Required Area = cfm = 3000250 = 12 sq-ft total
bull AreaOpening 122 = 6 sq-ftopening (2 required)
Notice
Consult local codes which may supersede these requirements
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Model CBLE 125-800 HP Boilers
35
This figure illustrates the basic gas valve arrangement on Cleaver-BrooksModel CB boiler and shows the contractors connection point The valves andcontrols between the contractor connection point and the gas main in thestreet are representative of a typical installation Actual requirements mayvary depending on local codes or local gas company requirements which
should be investigated prior to preparation of specifications and prior to con-struction
A Utilities service valveB Utilities service regulatorC Gas meterD Piping from meter to boiler
The size of the gas line from the meter to the gas pressure regulator at theboiler can be very important if gas pressures are marginal The gas line sizingis dependent on
1 Gas pressure at outlet of gas meter (C)2 Rate of gas flow required CFH3 Length of pipe run (D)4 Pressure required at contractor connection point
The local gas utility will advise the pressure that is available at the outlet oftheir meter
Figure A1-14 Typical Gas Piping Layout
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Model CBLE 125-800 HP Boilers
36
5
6
S
1
3
42
PILOT GAS LINE
S
S
MAIN GAS LINE
M M
ToBurner
GasSupply
11
10
97
12138
14 15
FLOW
FLOW
Figure A1-15 Model CB-LE Gas Train Components
BOILER
HP
MODEL CB
SUPPLYANDRE-
TURNCONN SIZES
(IN)(NPT)
A(IN)
RECOMMENDED OIL LINEA
SIZES(STANDARD PIPE)
(IN - IPS)
STOR-AGE
TANK TOBOILER
OR PUMPCONNECT
PUMPTO
BOILER
RE-TURN
LINE TOTANK
125150 200
34 12-12 1 1 1
250300350
34 34 1 1 1
400500600
34 11-34 1 1 1
700800
1 11-34 1 1 1
NOTE See No 2 Oil Line Sizing Instruction for systems with other conditions A For suction line condition with a maximum of 10 Feet of lift and a
total of 100 feet of suction line
Figure A1-16 No2 Oil Connection Size Location and Recommended Line Sizes
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Model CBLE 125-800 HP Boilers
37
Figure A1-17 No 2 Oil Piping Single Boiler
Installation Remote Oil Pump
Figure A1-18 No 2 Oil Piping Multiple Boiler
Installation Remote Oil Pumps
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
38
Figure A1-19 No 2 Oil Piping Multiple Boiler
Installation
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
39
Figure A1-20 No 2 Oil Piping Typical Arrangement
Table A1-24 Model CB-LE Blowdown
Tank Sizing
BOILER HP WATER (GAL)
125 97
150 118
200 145
250 146
300 176
350 210
400 177
500 209
600 250
700 800 296
NOTE Quantity of water removed from boiler by lowering normal water line 4
BOILER
HP
HEATING SURFACE (SQ-FT)
FIRESIDE WATERSIDE
125 625 679
150 750 820
200 1000 1092
250 1250 1346
300 1500 1623
350 1750 1932
400 2000 2151
500 2500 2691
600 3000 3262
700 800 3500 3810
Table A1-25 Heating Surface Model CB-LE
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Model CBLE 125-800 HP Boilers
40
BOILER HPSTEAM VOLUME CU-FT
STEAM DISENGAGING AREASQ-IN
HIGH PRESSUREA LOW PRESSUREB HIGH PRESSUREA LOW PRESSUREB
125 254 366 5371 5887
150 307 443 6511 7138
200 377 544 7985 8752
250 492 706 7980 8695
300 595 853 9651 10516
350 709 1017 11507 12538
400 721 979 9793 10593
500 837 1137 11376 12303
600 1015 1378 13787 14911
700-800 1198 1627 16273 17600
NOTE Based on normal water levelA Based on 150 psig design pressureB Based on 15 psig design pressure
Table A1-26 Steam Volume and Disengaging Area
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Model CBLE 125-800 HP Boilers
41
BOILERHP
BOILERCAPACITY(LBSHR)
OPERATING PRESSURES (PSIG)
50 75 100 125 150 175 200 250
100 3450
2-12 2-12 NA NA NA NA NA NA
125 4313 3 2-12 2-12 2-12 NA NA NA NA
150 5175 3 3 2-12 2-12 2-12 2-12 NA NA
200 6900 3 3 3 3 3 2-12 2-12 2-12
250 8625 4 3 3 3 3 3 3 3
300 10350 4 4 4 3 3 3 3 3
350 12025 4 4 4 4 4 3 3 3
400 13800 5 4 4 4 4 4 4 3
500 17210 6 5 5 4 4 4 4 4
600 20700 6 6 5 5 5 4 4 4
700 24150 6 6 6 5 5 5 5 4
800 27600 6 6 6 6 6 5 5 5
NOTE Valve sizes (300 Flanges) given in inchesStandard Non-Return valve selections limited to a maximum 2 to 1 turndown(50 of full load) selections based on typical non-return valve sizing recommen-dations For final valve selection contact your C-B authorized representative Forhigh turndown applications see Boiler Book Section I3 Table I3-3 Indicates pressure drop of less than 75 psig All other selections are less than6 psig pressure drop
Boiler HP
OPERATINGPRESSURE
PSIG125 150 200 250 300 350 400 500 600 700 800
15 8 8 10 10 12 12 12 12 12 12 12
30 6 6 8 8 8 10 10 10 12 12 12
40 6 6 6 8 8 8 10 10 10 12 12
50 6 6 6 6 8 8 8 10 10 10 12
75 4 4 6 6 6 8 8 8 8 10 10
100 4 4 6 6 6 6 6 8 8 8 10
125 4 4 4 6 6 6 6 8 8 8 8
150 3 3 4 4 6 6 6 6 6 8 8
200 25 3 4 4 4 4 6 6 6 6 6
250 25 3 3 4 4 4 4 6 6 6 6
NOTES1 Steam nozzle sizes given in inches2 Recommended steam nozzle sizes based on 4000 to 5000 fpm steam velocity3 All standard steam nozzle sizes for 150 psig design pressure or greater are the sameas 125 psig operating pressure on the above table To increase or decrease the standardsize request the change with your local Cleaver-Brooks authorized representative4 Shaded area denotes special surge load baffles must be installed to avoid possible wa-ter carry-over5 For incremental operating pressures see Table I3-1 Steam Systems Fundamentals
Table A1-28 Recommended Steam Nozzle Size (for
4000 to 5000 fpm nozzle velocity)
Table A1-29 Recommended Non-Return Valve Size
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Model CBLE 125-800 HP Boilers
42
1 Shortest boiler room length (Dwg A) is obtained by allowing for possible future tube replacement (from front or rearof boiler) through a window or doorway Allowance is only made for minimum door swing at each end of the boilerThis arrangement provides sufficient aisle space at the front of the boiler but a ldquotightrdquo space condition at the rear
If space permits approximately 15 additional feet should be allowed at the rear for additional aisle and workingspace
2 Next shortest boiler room length (Dwg B) is obtained by allowing for possible future tube replacement from thefront of the boiler Allowance is only made for minimum door swing at the rear
If space permits approximately 15 additional feet should be allowed at the rear for additional aisle and workingspace
3 A slightly longer boiler room (Dwg C) is obtained by allowing for possible future tube replacement from the rear ofthe boiler Allowance for door swing at the front provides sufficient aisle and working space at the front
Figure A1-21 Boiler Room Length (Typical Layouts)
BOILER HP 125-200 250-350 400-800
Dimension A 82 93 102
Dimension B 115 141 171
NOTES1 Recommended Minimum Distance Between Boiler and Wall Dimen-
sion ldquoArdquo allows for a ldquoclearrdquo 42 aisle between the water col-umn on the boiler and the wall If space permits this aisle
should be widened 2 Recommended Minimum Distance Between BoilersDimension ldquoBrdquo between boilers allows for a ldquoclearrdquo aisle of42 - 125 -200 hp48 - 250-350 hp60 - 400-800 hpIf space permits this aisle should be widened
Figure A1-22 Boiler Room Width (Typical Layout)
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Model CBLE 125-800 HP Boilers
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
15
BOILER HP DIM 250 300 350
WIDTHS
Overall I 93 93 93
ID Boiler J 78 78 78
Center to Entrance Box K 51 51 51
Center to Outside Hinge KK 51 51 51
Center to Lagging L 42 42 42
Base Outside M 64 64 64
Base Inside N 52 52 52
HEIGHTS
Overall OO 115 115 115
Base to Vent Outlet O 106 106 106
Base to Return and Outlet X 101-12 101-12 101-12
Height of Base Q 10 10 10
Base to Bottom of Boiler R 17 17 17
BOILER CONNECTION
Auxiliary Connection Z 1-14 1-14 1-14
Water Return Flange (2 Dip Tube included) T 8A 8A 8A
Water Outlet Flange (2 Dip Tube Included) U 8A 8A 8A
Air Vent Y 1-12 1-12 1-12
Drain Front and Rear W 2 2 2
VENT STACK
Diameter (flgd connection) BB 20 20 20
MINIMUM CLEARANCES
Rear Door Swing DD 43 43 43
Front Door Swing EE 89 89 89
Tube Removal Rear FF 131 157 187
Tube Removal Front GG 116 142 172
MINIMUM BOILER ROOM LENGTH ALLOWING FOR DOOR SWING AND TUBE REMOVAL FROM
Rear of Boiler RR 364 417 477
Front of Boiler RF 303 356 416
Thru Window or Doorway RD 275 302 332
WEIGHT IN LBS
Water Capacity Flooded 13880 16840 20090
Approx Ship Wgt ndash 30 psigApprox Ship Wgt ndash 125 psig
2140022200
2350024300
2670027500
NOTES All connections are threaded unless indictedA ANSI 150 psig flange
Table A1-7 Model CB-LE Hot Water Boiler Dimensions
78rdquo (30 and 125 psig Design Pressure) - Sheet 2 of 2
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
16
BOILER HP DIM 400 500 600 700 800
LENGTHS
Overall (60 ppm System) A 206 228 262 299 300
Shell B 147 168 200 233 233
Base Frame C 134 155 187 220 220
Front Head Extension (60 ppm System) D 27 28 30 34 35
Rear Head Extension E 32 32 32 32 32
Shell Ring Flange to Base F 12 12 12 12 12
Rear Ring Flange to Base G 12-12 12-12 12-12 12-12 12-12
Shell Flange to Outlet HH 139-12 156-12 182-12 216-12 216-12
Shell Flange to Return H 107 125 151-12 185 185
Over Tubesheets V 130 151 183 216 216
Shell Extension P 17 17 17 17 17
Table A1-8 Model CB-LE Hot Water Boiler Dimensions96rdquo (30 and 125 psig Design Pressure) - Sheet 1 of 2
Figure A1-6 CB-LE Hot Water 400-800 HP
s k o o r B r e v a
e l C
R
F G
WW
P
BB
D E
GG
Q
Z
Y T U
RR - RF - RD
X
HH
A
B
HI
L K
OOO
KK
M
N
EE
FF
DD
V
J
C
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
17
WIDTHS
Overall I 113 113 113 113 115
ID Boiler J 96 96 96 96 96
Center to Entrance Box K 62 62 62 62 64
Center to Outside Hinge KK 62 62 62 62 62
Center to Lagging L 51 51 51 51 51
Base Outside M 72 72 72 72 72
Base Inside N 56 56 56 56 56
HEIGHTS
Overall OO 134 134 134 134 134
Base to Vent Outlet O 126 126 126 126 126
Height of Base Q 12 12 12 12 12
Base to Bottom of Boiler R 19 19 19 19 19
Base to Return and Outlet X 121-916 121-916 121-916 121-916 121-916
BOILER CONNECTIONS
Auxiliary Connection Z 1-14 1-14 1-14 1-14 1-14
Drain Front and Rear W 2 2 2 2 2
Water Return T 10A 10A 12A 12A 12A
Water Outlet (2rdquo Dip Tube Included) U 10A 10A 12A 12A 12A
Air Vent Y 2 2 2 2 2
VENT STACK
Diameter (Flanged Connection) BB 24 24 24 24 24
MINIMUM CLEARANCES
Rear Door Swing DD 53 53 53 53 53
Front Door Swing EE 108 108 108 108 108
Tube Removal Rear FF 131 152 184 217 217
Tube Removal Front GG 114 135 167 200 200
MINIMUM BOILER ROOM LENGTH ALLOWING FOR DOOR SWING AND TUBE REMOVAL FROM
Rear of Boiler RR 386 428 492 558 558
Front of Boiler RF 314 356 420 486 486
Thru Window or Doorway RD 308 329 361 394 394
WEIGHT IN LBS
Normal Water Capacity 20015 23300 28260 33360 33360
Approx Ship Wgt ndash 30 psig
Approx Ship Wgt ndash 125 psig
33300
37270
36900
40780
42150
46005
49650
53300
49750
53400
NOTES All connections are threaded unless indicated
A ANSI 150 psig flange
BOILER HP DIM 400 500 600 700 800
Table A1-8 Model CB-LE Hot Water Boiler Dimensions
96rdquo (30 and 125 psig Design Pressure) - Sheet 2 of 2
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Model CBLE 125-800 HP Boilers
18
BOILER HP
MOTOR HP
60PPM
30PPM
25PPM
20PPM
125 5 10 5 10
150 75 10 10 10
200 15 15 20 NA
250 75 10 15 15
300 10 15 20 30
350 15 25 40 40
400 10 15 20 20
500 15 20 25 30
600 25 30 50 60
700 30 50 75 75
800 50 75 NA NA
NOTES For elevations above 700rsquo - contact your local
Cleaver-Brooks authorized representative
Table A1-9 Model CB-LE Blower Motor Selection -
Operating Pressures 150 psig and Less and All Hot
Water Boilers
BOILER HP
MOTOR HP
60
PPM
30
PPM
25
PPM
20
PPM
125 5 10 10 10
150 10 10 10 15
200 15 20 20 NA
250 75 10 15 20
300 10 20 30 40
350 20 30 40 50
400 10 15 20 25
500 20 25 30 40
600 25 40 60 60
700 40 60 75B 75C
800 60 75A NA NA
NOTES For elevation above 700rsquo - contact your local
Cleaver-Brooks authorized representative
A Downrate to 770 hp
B Downrate to 675 hp
C Downrate to 660 hp
Table A1-10 Model CB-LE Blower Motor Selection -
Operating Pressures Greater than 150 psig (Steam
Boilers)
09-09
Table A1-11 Blower Motor Selection CB-LE NTI BoilersTable A1-12 Turndown Guarantee for CB-LE NTI
Boilers - Natural Gas amp 2 Oil
Boiler SizeTurndown
9 ppm 15 ppm
125 41 41
150 41 51
200 41 51
250 51 51
300 51 51
350 51 51
400 51 61
500 51 61
600 61 61
700 71 71
800 71 71
800 HP to be derated to 720 HP for 9 ppm and 750 HP
for 15 ppm
Altitude 700 ft and less - Design Pressure 150 psi and less
800 HP - to be de-rated to 720 HP for 9 ppm and to 750 HP for 15 ppm
mpp9mpp51Nominal
Boiler Size Blower Motor HP Blower Motor HP
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Model CBLE 125-800 HP Boilers
19
BOILER HPFUEL
SERIES
HOT WATER STEAM
30 PSIG 125 PSIG 15 PSIG 150 PSIG 200 PSIG
125100 11200 11600 11300 12000 12600200 11400 11800 11500 12400 13000
700 11300 11700 11400 12300 12900
150
100 12300 12700 12400 13200 13900
200 12500 12900 12600 13500 14200
700 12300 12700 12400 13300 14000
200
100 14400 14800 14500 15500 16300
200 14500 14900 14600 15600 16400
700 14500 14900 14600 15600 16400
250
100 20700 21500 20800 22000 23800
200 21400 22200 21500 22800 24600
700 20900 21700 21000 22500 24300
300
100 23100 23900 23200 24800 26800
200 23500 24300 23600 25200 27200
700 23400 24200 23500 25000 27000
350
100 26200 27000 26300 27600 29100
200 26700 27500 26800 27800 29300
700 26400 27200 26500 27700 29200
400
100 33000 36970 33200 36270 39380
200 33300 37270 33500 36570 39680
700 33200 37170 33400 36470 39580
500
100 36600 40470 36810 39670 43480
200 36900 40780 37110 39970 43580
700 36800 40680 37010 39870 43280
600
100 41850 45905 42000 44725 49100
200 42150 46005 42300 45025 49400
700 42050 45915 42200 44925 49300
700800
100 49450 53000 49300 51850 57015
200 49750 53300 49600 52150 57315
700 49650 53200 49500 52050 57215
NOTES1 Weights shown are based on standard product offering for current listed boilers If units are of special design and construction actual weightwill be determined at time of shipment Shipment will then be made on shippers weight and count All weights are in US pounds
Table A1-13 Model CB-LE Boiler Weights
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Model CBLE 125-800 HP Boilers
20
VALVE
SETTING15 PSIG STEAM 100 PSIG STEAM 125 PSIG STEAM 150 PSIG STEAM 200 PSIG STEAM 250 PSIG STEAM 300 PSIG STEAM
BOILERHP
NO OF
VALVES-REQD
OUTLET
SIZE(IN)
NO OF
VALVES-REQD
OUTLET
SIZE(IN)
NO OF
VALVESREQD
OUTLET
SIZE(IN)
NO OF
VALVES-REQD
OUTLET
SIZE(IN)
NO OF
VALVES-REQD
OUTLET
SIZE(IN)
NO OF
VALVESREQD
OUTLET
SIZE(IN)
NO OF
VALVESREQD
OUTLET
SIZE(IN)
125 1 3 2 1-12 2(1) 1-12(1) 1-14
2(1) 1-12(1) 1-14
2(1) 1-14(1) 1
2 1 2 1
150 1 3 2(1) 2(1) 1-12
2 1-14 2(1) 1-12(1) 1-14
2(1) 1(1) 1-14
2 1 2 1
200 2 2-12 2 2 2 1-12 2 1-12 2(1) 1-12(1) 1-14
2 1-14 2(1) 1(1) 1-14
250 2(1) 2-12(1) 3
2(1) 2-12(1) 2
2(1)2(1)1-12
2(1) 2(1) 1-12
2(1)1-12(1)1-14
2(1) 1-12(1) 1-14
2 1-14
300 2 3 2(1) 2-12(1) 2
2 2 2(1) 2(1) 1-12
2 1-12 2(1)1-12(1)1-14
2(1) 1-12(1) 1-14
350 3(1) 2(2) 3
3(1) 2-12(2) 2
2(1)2(1)1-12
2 2 2(1) 1-12(1) 2
2 1-12 2(1) 1-12(1) 1-14
400 3(2) 3(1) 2-12
3(1) 2(2) 2-12
2(1)2(1)2-12
2(1) 2-12(1) 2
2(1) 1-12(1) 2
2(1) 2(1) 1-12
2 1-12
500 3 (3) 3 3 2-12 2 2-12 2(1) 2-12(1) 2
2(1) 2(1) 2-12
2(1) 2(1)1-12
2(1) 1-12(1) 2
600 4 3 4(3) 2-12(1) 2
3 2-12 2 2-12 2(1) 2(1) 2-12
2 2 2 2
700 5(3) 3(2) 2-12
5(3) 2-12(2) 2
3 2-12 3(2) 2-12(1) 2
2 2-12 2(1) 2(1) 2-12
2 2
800 5(3) 3(2) 2-12
5(3) 2-12(2) 2
4(3) 2-12(1) 2
3(2) 2-12(1) 2
2 2-12 2(1) 2(1) 2-12
2(1) 2(1) 2-12
NOTES Valve manufacturers are Kunkle Consolidated or Conbraco depending on availability This table revised 042012
Table A1-14 Steam Boiler Safety Valve Openings
VALVE
SETTING 30 PSIG HW 60 PSIG HW 100 PSIG HW 125 PSIG HW
BOILER HPNO OF
VALVESREQD
OUTLETSIZE(IN)
NO OFVALVESREQD
OUTLETSIZE(IN)
NO OFVALVESREQD
OUTLETSIZE(IN)
NO OFVALVESREQD
OUTLETSIZE(IN)
125 1 2-12 1 2 1 2 1 1-14
150 1 2-12 1 2-12 1 2 1 2
200 2(1) 2-12(1) 1-14
1 2-12 1 2 1 2
250 2 (1) 2(1) 2-12
1 2-12 1 2-12 1 2
300 2 2-12 2(1) 1(1) 2-12
1 2-12 1 2-12
350 3(2) 2-12(1) 1
2(1) 2-12(1) 2
1 2-12 1 2-12
400 3 (1) 2(2) 2-12 2 (1) 2(2) 2-12 2 (1) 1(1) 2-12 1 2-12
500 4 (1) 1(3) 2-12
2 2-12 2(1) 2-12(1) 1-14
2(1) 1(1) 2-12
600 4(3) 2-12(1) 2
3(1) 1-1(2) 2-12
2(1) 2(1) 2-12
2(1) 2-12(1) 1-14
700 amp 800 5 (1) 1(4) 2-12
3(1) 2(2) 2-12
2 2-12 2(1) 2-12(1) 2
NOTES Hot water relief valves are Kunkle 537
Table A1-15 Hot Water Boiler Relief Valve Openings
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Model CBLE 125-800 HP Boilers
21
BOILER HP A B C D E F G X1 X2 X3
125 6 9 112 39-12 57-12 4 44-12 10 9-34 22-12
150 6 9 136 39-12 57-12 4 44-12 10 9-34 22-12
200 6 9 167 39-12 57-12 4 44-12 10 9-34 22-12
250 6 12 131 46 70 4 56 10 22 22-12
300 6 12 158 46 70 4 56 10 22 22-12
350 6 12 188 46 70 4 56 10 22 22-12
NOTE
All numbers in table are in inches
6-inch high mounting piers recommended for use beneath the boiler base frame The use of these piers provides increased inspection
accessibility to the piping beneath the boiler and added height for washing down the area beneath the boiler
Figure A1-7 Space Required to Open Rear Head on Model CB-LE Boilers Equipped with Davits
BOILER HPDIMENSIONS (INCHES)
A B C D E
CB-125 THRU CB-200 33 55 45 68 32
CB-250 THRU CB-350 42 69 58 86 43
CB-400 THRU CB-800 51 88 71 109 53
Figure A1-8 Model CB-LE Boiler Mounting Piers (60rdquo and 78rdquo)
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 2243
Model CBLE 125-800 HP Boilers
22
BOILER HP A B C D E F G
400 6 14 134 50 78 6-12 58-78
500 6 14 155 50 78 6-12 58-78
600 6 14 187 50 78 6-12 58-78
700-800 6 14 220 50 78 6-12 58-78
NOTE1 All numbers in table are in inches2 6-inch high mounting piers recommended for use beneath the boiler base frame The use of these piers provides in-
creased inspection accessibility to the piping beneath the boiler and added height for washing down the area beneaththe boiler
Figure A1-9 Model CB-LE Boiler Mounting Piers (96rdquo)
CBLE 250-350HP
CBLE 400-800HP
Motor HP Hole Number
75 1
15 1
25 2
40 3
Motor HP Hole Number
10 1
20 1
30 250 2
75 3
Figure A1-10 Front Davit Support
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Model CBLE 125-800 HP Boilers
23
BOILERHP
VIEW
ALL DIMENSIONS IN INCHES
A B C D E
125 All B 80-14 29-34 70-12 10 3
150 All B 80-14 29-34 83-12 10 3
200 All B 80-14 29-34 114-12 10 3
250Steam B 99 36 72 10 3
Hot Water B 99 36 81 10 3
300
Steam B 99 36 99 10 3
Hot Water B 99 36 108 10 3
350Steam B 99 36 129 10 3
Hot Water B 99 36 138 10 3
400Steam B 119 35-34 78 11 3
Hot Water B 119 35-34 78 11 3
500Steam B 119 35-34 99 11 3
Hot Water B 119 35-34 99 11 3
600Steam B 119 35-34 131 11 3
Hot Water B 119 35-34 131 11 3
700 amp 800Steam B 119 35-34 164 11 3
Hot Water B 119 35-34 164 11 3
NOTE A B and C dimensions may vary by 12 inch
Figure A1-11 Lifting Lug Location Model CB-LE Boilers
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 2443
Model CBLE 125-800 HP Boilers
24
PERFORMANCE DATA
The Low Emission Option provides NOx reduction at current published andpredicted fuel-to-steam efficiencies
Specifying BoilerEfficiency
Cleaver-Brooks offers an industry leading fuel-to-steam boiler efficiency guaranteefor Model CB-LE Firetube Boilers The guarantee is based on the fuel-to-steam
efficiencies shown in the efficiency tables and the following conditions Theefficiency percent number is only meaningful if the specific conditions of theefficiency calculations are clearly stated in the specification (see Cleaver-Brookspublication CB-7768 for a detailed description of efficiency calculations)
When specifying the efficiencies in the tables be sure to include the specificguarantee conditions to maximize the effectiveness of your efficiency specification Ifyou have any questions regarding the efficiency specifications please contact yourlocal Cleaver-Brooks authorized representative
EfficiencySpecification
The boiler manufacturer shall guarantee that at the time of startup the boiler willachieve fuel-to-steam efficiency (as shown in Table A1-16 and Table A1-17) at100 firing rate (add efficiency guarantees at 25 50 and 75 of rating if
required) If the boiler(s) fail to achieve the corresponding guaranteed efficiency aspublished the boiler manufacturer will rebate to the ultimate boiler owner tenthousand dollars ($10000) for every full efficiency point (10) that the actualefficiency is below the guaranteed level
The specified boiler efficiency is based on the following conditions
1 Fuel specification used to determine boiler efficiency
bull Natural Gas
Carbon (wt) = 6998Hydrogen (wt) = 2231Sulfur (wt) = 00
Heating value Btulb = 21830bull No 2 Oil
Carbon (wt) = 858Hydrogen (wt) = 127Sulfur (wt) = 02Heating value Btulb = 19420
No 6 Oil
Carbon (wt) = 866Hydrogen (wt) = 109Sulfur (wt) = 209Heating value Btulb = 18830
2 Efficiencies are based on ambient air temperature of 80 degF relative humidity of30 and 15 excess air in the exhaust flue gas
3 Efficiencies are based on manufacturerrsquos published radiation and convectionlosses (For Cleaver-Brooks radiation and convection losses see BoilerEfficiency Facts Guide publication number CB-7767)
4 Any efficiency verification testing will be based on the stack loss method
For efficiencies and stack temperatures at operating pressures not listed followthese procedures
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 2543
Model CBLE 125-800 HP Boilers
25
When the operating steam pressure is between 10 psig and 125 psig interpolatethe values from the efficiency tables
When the operating steam pressure is above 125 psig estimated efficiency can becalculated as follows
Example
Boiler 350 hpFuel natural gas
Operating steam pressure 200 psig
Find the fuel-to-steam efficiency at 100 firing rate From Table A1-16 for a 350hp boiler operating at 100 firing rate and an operating steam pressure of 125psig the efficiency is 825
Using Figure A1-12 note that the stack temperature increases 36 degF at the higheroperating pressure To estimate boiler efficiency use this rule of thumb For every40 degF increase in stack temperature efficiency decreases by 1 Since the stacktemperature rise is 36 degF the decrease in the boiler efficiency at 200 psig operatingpressure is calculated as follows 3640 =9 Therefore the boiler efficiency at200 psig operating pressure is 825 -9 = 816
Emissions The emission data included in this section consists of typical emission levels forModel CB boilers equipped with 60 30 25 and 20 ppm LE Options when firingnatural gas and No 2 oil
Notice
The data in Table A1-18 and Table A1-19 represent typical emission levels only
Guaranteed emission levels are available from your local Cleaver-Brooks authorized
representative
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Model CBLE 125-800 HP Boilers
26
BOILER
HP
OPERATING PRESSURE = 10 psig OPERATING PRESSURE = 125 psig
OF LOAD OF LOAD
25 50 75 100 25 50 75 100
125 833 836 834 832 804 809 810 810
150 844 846 845 843 815 820 820 821
200 850 853 851 849 822 827 827 827
250 850 847 840 833 820 820 816 813
300 853 853 846 839 826 827 822 819
350 853 857 852 845 826 832 828 825
400 845 847 846 844 818 822 824 822
500 855 857 855 852 828 832 833 831
600 857 860 858 856 829 835 836 835
700 857 862 860 857 830 836 836 836
800 858 861 859 856 831 836 837 835
Table A1-16 Predicted Fuel-to-Steam Efficiencies - Natural Gas
Figure A1-12 Predicted Stack Temperature Increase for Pressure Greater Than 125 psig
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Model CBLE 125-800 HP Boilers
27
Table A1-18 CB-LE Boilers - Natural Gas Emission Levels
POLLUTANT
ESTIMATED LEVEL
60 ppm 30 ppm 25 ppm 20 ppm 15 ppm 9 ppm
CO ppmA
lbMMBtu
50150B
004011
50150B
004011
50150B
004011
50150B
004011
50
004
50
004
NOx ppmA
lbMMBtu
60
007
30
0035
25
003
20
0024
15
0018
9
0011
SOx ppmA
lbMMBtu
1
0001
1
0001
1
0001
1
0001
1
0001
1
0001
HCVOC5 ppmA
lbMMBtu
10
0004
10
0004
10
0004
10
0004
10
0004
10
0004
PM ppmA
lbMMBtu
-
001
-
001
-
001
-
001
-
001
-
001
A ppm levels are given on a dry volume basis and corrected to 3 oxygen (15 excess air)
B CO emission for 60 30 25 amp 20 ppm system is 50 ppm (004 lbMMBtu) when boiler is operating above 50 of rated capacity
CO emission is 150 ppm (011 lbMMBtu) when boiler is operating below 50 of rated capacity
Table A1-17 Predicted Fuel-to-Steam Efficiencies - No 2 Oil
BOILER
HP
OPERATING PRESSURE = 10 psig OPERATING PRESSURE = 125 psig
OF LOAD OF LOAD
25 50 75 100 25 50 75 100
125 867 869 867 866 837 842 843 843
150 878 880 878 876 848 853 853 854
200 884 887 884 882 856 860 860 860
250 883 881 874 867 853 853 849 847
300 886 887 880 873 859 860 855 852
350 886 890 885 878 859 866 861 858
400 879 881 879 876 851 855 856 855
500 889 890 889 886 861 865 866 864
600 890 894 892 890 862 868 869 868
700 891 895 893 891 863 869 870 869
800 892 895 893 890 864 869 870 868
Table A1-19 CB-LE Boilers - No 2 Oil Emission Levels
POLLUTANTESTIMATED LEVEL
60 ppm LE Option 30 25 20 ppm LE Option 15 ppm 9 ppm
CO ppmA
lbMMBtu
50
0039
50
0039
50
0039
50
0039
NOx ppmA
lbMMBtu140
018690
012085
011370
0093
SOx ppmA
lbMMBtu
278
052
278
052
278
052
278
052
HCVOCs ppmA
lbMMBtu
4
0002
4
0002
4
0002
4
0002
PM ppmA
lbMMBtu
-
0025
-
0025
-
0025
-
0025
A ppm levels are given on a dry volume basis and corrected to 3 oxygen (15 excess air)
BASED ON THE FOLLOWING CONSTITUENT LEVELS
Fuel-bound Nitrogen content = 0015 by weight
Sulfur content = 05 by weight
Ash content = 001 by weight
09-09
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28
ENGINEERING DATA
Sound Level Table A1-20 gives a summary of predicted sound pressure levels for Model CBboilers with 30 ppm LE Options Contact your local Cleaver-Brooks authorizedrepresentative for sound levels or other LE Options
Units - The units for the sound level tables are dbA (decibels measured on the A-weighted scale) in reference to 00002 microbars (20 micro-Newtons per square
meter) Their reference are standardly used in specifying and reporting soundpressure levels on industrial equipment
Test Method - The sound pressure levels in the above tables were obtained fromtests in accordance with the ldquoABMA Test Code for the Measurement of Sound fromPackaged Boilersrdquo In accordance with this code the sound pressure levels reportedwere measured on the boiler centerline 4-12 feet vertically above the bottom of thebase rails and 3 feet horizontally in front of the end of the blower motor or frontsurface of the electrical cabinet
Sound Level Meter - The sound level meter used complies with ANSI S14 Type 1(Precision) The readings are taken with the meter set for slow response andcorrected for background levels
Sound Pressure - The large size boilers the need for auxiliary equipment and thenecessary interconnecting piping make it impractical (and sometimes impossible) toprovide a boiler testing environment which is suitable for taking the data needed todevelop Sound Pressure Power levels
Typical Values - Sound pressure levels (dbA) for the same boiler will vary betweenboiler rooms Sound levels will vary with motor type NOx levels and altitudes Inaddition variations will occur between different people using different sound meterson the same boiler And finally no two boilers can be expected to give precisely thesame sound levels For these reasons we can only predict but not guarantee soundlevels (dbA)
BOILER HP 125 150 200 250 300 350 400 500 600 700 800
HFO dbA 84 84 84 83 84 85 84 85 85 88 90
LFO dbA 82 82 83 81 82 83 82 83 83 84 89
HFG dbA 82 82 83 82 83 84 83 83 85 87 90
LFG dbA 81 81 82 81 82 83 81 81 82 84 88
NOTES1 Sound pressure levels measured on boilers operating in various locations and ex-
pressed in dbA are as shown2 Based on standard altitude fans and fan motors 60 Hz3 Contact your local Cleaver-Brooks authorized representative for sound levels of 60 25or 20 ppm LE Options
ABBREVIATIONS
HF = High Fire LF = Low Fire O = Oil G = Gas
Table A1-20 Model CBLE Predicted Sound Levels 30 ppm NOx Systemss
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Model CBLE 125-800 HP Boilers
29
Gas-Fired Burners Table A1-21 shows gas pressure with standard over- and undersized gas trains
Table A1-22 shows minimum required gas pressure altitude conversion
Figure A1-13 shows standard gas train sizes and locations for Model CB FiretubeBoilers
Figure A1-14 shows typical gas train piping layouts for multiple boiler applications
Figure A1-15 shows standard gas train components
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Model CBLE 125-800 HP Boilers
30
Table A1-21 Standard Undersize and Oversize Gas Trains
CBLE
BOILER HP GAS TRAINSIZE
UPSTREAMVALVE
DOWNSTREAMVALVE
EMISSIONS LEVEL 09 ppm 15 ppm 20 ppm 30 ppm 60 ppm UC
125 HP 15 in BB BB 33 - 49 psi 33 - 49 psi 08 - 50 psi 07 - 50 psi 07 - 50 psi 07 - 50 ps
125 HP 15 in PC PC 34 - 50 psi 34 - 50 psi 09 - 50 psi 08 - 50 psi 08 - 50 psi 08 - 50 ps
125 HP 20 in BB BB 31 - 33 psi 31 - 33 psi 06 - 08 psi 06 - 07 psi 05 - 07 psi 05 - 07 ps
125 HP 20 in PC PC 31 - 34 psi 31 - 34 psi 06 - 09 psi 06 - 08 psi 06 - 08 psi 05 - 08 ps
125 HP 25 in PC PC 30 - 31 psi 30 - 31 psi 04 - 06 psi 04 - 06 psi 04 - 05 psi 04 - 05 ps
125 HP 30 in PC PC 29 - 30 psi 29 - 30 psi 04 - 04 psi 04 - 04 psi 04 - 04 psi 03 - 04 ps
125 HP 40 in PC PC 29 - 29 psi 29 - 29 psi 04 - 04 psi 03 - 04 psi 03 - 04 psi 03 - 03 ps
150 HP 15 in BB BB 37 - 55 psi 39 - 58 psi 10 - 47 psi 09 - 50 psi 09 - 50 psi 09 - 50 ps
150 HP 15 in PC PC 38 - 57 psi 40 - 60 psi 11 - 42 psi 11 - 50 psi 10 - 50 psi 10 - 50 ps
150 HP 20 in BB BB 34 - 37 psi 36 - 39 psi 07 - 10 psi 06 - 09 psi 06 - 09 psi 06 - 09 ps
150 HP 20 in PC PC 34 - 38 psi 36 - 40 psi 07 - 11 psi 07 - 11 psi 07 - 10 psi 06 - 10 ps
150 HP 25 in PC PC 32 - 34 psi 34 - 36 psi 05 - 07 psi 04 - 06 psi 04 - 06 psi 04 - 06 ps
150 HP 30 in PC PC 32 - 32 psi 34 - 34 psi 04 - 05 psi 04 - 04 psi 04 - 04 psi 03 - 04 ps
150 HP 40 in PC PC 31 - 32 psi 33 - 34 psi 04 - 04 psi 03 - 04 psi 03 - 04 psi 03 - 03 ps
200 HP 15 in BB BB 46 - 69 psi 50 - 75 psi 16 - 50 psi 15 - 50 psi 15 - 50 ps
200 HP 15 in PC PC 48 - 72 psi 52 - 78 psi 18 - 50 psi 17 - 50 psi 17 - 50 ps
200 HP 20 in BB BB 41 - 46 psi 45 - 50 psi 10 - 16 psi 10 - 15 psi 10 - 15 ps
200 HP 20 in PC PC 41 - 48 psi 45 - 52 psi 11 - 18 psi 11 - 17 psi 10 - 17 ps
200 HP 25 in PC PC 38 - 41 psi 42 - 45 psi 07 - 10 psi 07 - 10 psi 06 - 10 ps
200 HP 30 in PC PC 36 - 38 psi 40 - 42 psi 06 - 07 psi 05 - 07 psi 05 - 06 ps
200 HP 40 in PC PC 36 - 36 psi 40 - 40 psi 05 - 06 psi 05 - 05 psi 04 - 05 ps
250 HP 15 in BB BB 41 - 62 psi 44 - 67 psi 24 - 50 psi 24 - 27 psi 24 - 26 psi 23 - 26 ps
250 HP 15 in PC PC 45 - 67 psi 48 - 72 psi 28 - 50 psi 27 - 28 psi 27 - 27 psi 27 - 27 ps
250 HP 20 in BB BB 33 - 38 psi 37 - 41 psi 16 - 24 psi 16 - 24 psi 16 - 24 psi 15 - 23 ps
250 HP 20 in PC PC 34 - 40 psi 37 - 43 psi 17 - 28 psi 17 - 27 psi 16 - 27 psi 16 - 27 ps
250 HP 25 in PC PC 29 - 33 psi 32 - 37 psi 11 - 16 psi 11 - 16 psi 11 - 16 psi 10 - 15 ps
250 HP 30 in PC PC 27 - 29 psi 31 - 32 psi 09 - 11 psi 09 - 11 psi 09 - 11 psi 09 - 10 ps
250 HP 40 in PC PC 26 - 27 psi 29 - 31 psi 08 - 09 psi 08 - 09 psi 08 - 09 psi 08 - 09 ps
300 HP 15 in - 20 in BB BB 55 - 83 psi 57 - 85 psi 30 - 50 psi 30 - 36 psi 30 - 35 psi 30 - 35 ps
300 HP 15 in - 20 in PC PC 58 - 87 psi 60 - 90 psi 33 - 50 psi 33 - 37 psi 33 - 36 psi 33 - 36 ps
300 HP 20 in BB BB 46 - 55 psi 47 - 57 psi 21 - 30 psi 21 - 30 psi 20 - 30 psi 20 - 30 ps
300 HP 20 in PC PC 47 - 58 psi 48 - 60 psi 22 - 33 psi 22 - 33 psi 21 - 33 psi 21 - 33 ps
300 HP 30 in PC PC 39 - 46 psi 40 - 47 psi 13 - 21 psi 13 - 21 psi 12 - 20 psi 12 - 20 ps
300 HP 40 in PC PC 37 - 39 psi 39 - 40 psi 11 - 13 psi 11 - 13 psi 10 - 12 psi 10 - 12 ps
350 HP 15 in - 20 in BB BB 64 - 90 psi 62 - 90 psi 42 - 50 psi 42 - 50 psi 41 - 50 psi 41 - 50 ps
350 HP 15 in - 20 in PC PC 68 - 90 psi 66 - 90 psi 46 - 50 psi 46 - 50 psi 45 - 50 psi 45 - 50 ps
350 HP 20 in BB BB 54 - 64 psi 53 - 62 psi 32 - 42 psi 32 - 42 psi 32 - 41 psi 31 - 41 ps
350 HP 20 in PC PC 56 - 68 psi 54 - 66 psi 34 - 46 psi 34 - 46 psi 33 - 45 psi 33 - 45 ps
350 HP 25 in PC PC 43 - 54 psi 42 - 53 psi 21 - 32 psi 21 - 32 psi 20 - 32 psi 20 - 31 ps
350 HP 30 in PC PC 40 - 43 psi 38 - 42 psi 17 - 21 psi 17 - 21 psi 17 - 20 psi 16 - 20 ps
350 HP 40 in PC PC 37 - 40 psi 36 - 38 psi 15 - 17 psi 15 - 17 psi 14 - 17 psi 14 - 16 ps
400 HP 15 in - 20 in BB BB 69 - 90 psi 69 - 90 psi 46 - 50 psi 46 - 50 psi 45 - 50 psi 45 - 50 ps
400 HP 15 in - 20 in PC PC 74 - 90 psi 75 - 90 psi 51 - 87 psi 51 - 77 psi 51 - 77 psi 51 - 77 ps
400 HP 20 in BB BB 55 - 69 psi 56 - 69 psi 32 - 46 psi 32 - 46 psi 32 - 45 psi 32 - 45 ps
400 HP 20 in PC PC 57 - 74 psi 58 - 75 psi 34 - 50 psi 34 - 50 psi 34 - 50 psi 34 - 50 ps
400 HP 25 in PC PC 41 - 55 psi 42 - 56 psi 18 - 32 psi 18 - 32 psi 18 - 32 psi 18 - 32 ps
400 HP 30 in PC PC 37 - 41 psi 38 - 42 psi 13 - 18 psi 13 - 18 psi 13 - 18 psi 13 - 18 ps
400 HP 40 in PC PC 34 - 37 psi 35 - 38 psi 11 - 13 psi 10 - 13 psi 10 - 13 psi 10 - 13 ps
500 HP 20 in - 25 in BB PC 58 - 76 psi 58 - 76 psi 46 - 50 psi 46 - 50 psi 45 - 50 psi 45 - 50 ps
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Model CBLE 125-800 HP Boilers
31
BB = Butter Ball PC = Plug Cock
NOTE In cases where the gas train increases in size after the regulating valve two diameters are listed The first number is the customer connection size
500 HP 20 in - 25 in PC PC 60 - 83 psi 60 - 83 psi 48 - 50 psi 47 - 50 psi 47 - 50 psi 47 - 50 psi
500 HP 25 in PC PC 39 - 58 psi 39 - 58 psi 27 - 46 psi 27 - 46 psi 27 - 45 psi 26 - 45 psi
500 HP 30 in PC PC 33 - 39 psi 33 - 39 psi 20 - 27 psi 20 - 27 psi 20 - 27 psi 20 - 26 psi
500 HP 40 in PC PC 28 - 33 psi 28 - 33 psi 16 - 20 psi 16 - 20 psi 15 - 20 psi 15 - 20 psi
600 HP 20 in - 25 in BB PC 80 - 90 psi 80 - 90 psi 65 - 90 psi 65 - 90 psi 64 - 89 psi 63 - 88 psi
600 HP 20 in - 25 in PC PC 82 - 90 psi 82 - 90 psi 67 - 100 psi 67 - 100 psi 66 - 99 psi 66 - 99 psi
600 HP 25 in PC PC 54 - 80 psi 54 - 80 psi 39 - 50 psi 38 - 50 psi 38 - 50 psi 37 - 50 psi
600 HP 25 in - 30 in PC PC 52 - 54 psi 52 - 54 psi 37 - 39 psi 36 - 38 psi 35 - 38 psi 35 - 37 psi
600 HP 30 in PC PC 43 - 52 psi 43 - 52 psi 28 - 37 psi 27 - 36 psi 27 - 35 psi 26 - 35 psi
600 HP 40 in PC PC 37 - 43 psi 37 - 43 psi 22 - 28 psi 21 - 27 psi 20 - 27 psi 20 - 26 psi
700 HP 20 in - 30 in BB PC 110 - 150 psi 107 - 150 psi 87 - 131 psi 86 - 130 psi 86 - 129 psi 86 - 128 psi
700 HP 20 in - 30 in PC PC 113 - 150 psi 110 - 150 psi 90 - 135 psi 89 - 134 psi 89 - 134 psi 89 - 133 psi
700 HP 25 in - 30 in PC PC 71 - 90 psi 68 - 90 psi 48 - 50 psi 47 - 50 psi 47 - 50 psi 46 - 50 psi
700 HP 30 in PC PC 60 - 71 psi 57 - 68 psi 36 - 48 psi 36 - 47 psi 35 - 47 psi 35 - 46 psi
700 HP 40 in PC PC 51 - 60 psi 48 - 57 psi 28 - 36 psi 27 - 36 psi 27 - 35 psi 26 - 35 psi
800 HP 20 in - 30 in BB PC 108 - 150 psi 107 - 150 psi 106 - 150 psi
800 HP 20 in - 30 in PC PC 112 - 150 psi 111 - 150 psi 110 - 150 psi800 HP 25 in - 30 in PC PC 61 - 90 psi 60 - 100 psi 59 - 100 psi
800 HP 30 in PC PC 48 - 61 psi 47 - 50 psi 46 - 50 psi
800 HP 40 in PC PC 35 - 48 psi 34 - 47 psi 34 - 46 psi
Standard Gas Train size is highlighted
Table A1-21 Standard Undersize and Oversize Gas Trains (Continued)
CBLE
BOILER HP GAS TRAINSIZE
UPSTREAMVALVE
DOWNSTREAMVALVE
EMISSIONS LEVEL 09 ppm 15 ppm 20 ppm 30 ppm 60 ppm UC
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Model CBLE 125-800 HP Boilers
32
ALTITUDE(FT)
CORRECTIONFACTOR
ALTITUDE(FT)
CORRECTIONFACTOR
1000 104 6000 1252000 107 7000 130
3000 111 8000 135
4000 116 9000 140
5000 121 - -
To obtain minimum required gas pressure at altitudesabove 700 feet multiply the pressure by the listed factorsInches WC x 0577 = ozsq-inOzsq-in x 1732 = Inches WCInches WC x 00361= psigOzsq-in x 00625 = psigPsig x 2771 = Inches WCPsig x 160 = Ozsq-in
Table A1-22 Minimum Required Regulated Gas Pressure
Altitude Conversion
BOILERHP
TYPE OF GAS AND HEAT CONTENT
NATURAL GAS1000 (Btucu-ft)
PROPANE GAS2550 (Btucu-ft)
125 5103 2000
150 6124 2402
200 8165 3202
250 10206 4002
300 12247 4802
350 14280 5600
400 16329 6404
500 20415 8006
600 24494 9605
700 28576 11206
800 32659 12807
Table A1-23 Maximum Gas Consumption (CFH)
for Natural Gas and Propane Vapor
BOILER
HP
MODEL CB
CONNECTION SIZE
(IN NPT)
LOCATIONDIMENSION
ldquoArdquo (IN)
125-200 1-12 52
250-350 2 56
400 2 58
500 2-12 60
600 2-12 - 3 71
700-800 3 65
Figure A1-13 Standard Gas Train Connection Size and Location
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Model CBLE 125-800 HP Boilers
33
Oil-Fired Burners Fuel oil consumption information is shown on the boiler rating sheets in theDimensions and Rating Section
Figure A1-16 shows the oil connection sizes and locations for Model CB Boilersfiring No 2 oil
Figure A1-17 through Figure A1-18 show typical oil systems and layouts
Figure A1-19 and Figure A1-20 show the detail of an oil transfer tank (day tank)typically utilized to provide a storage reservoir between the oil system supply pumpand the boiler oil pump
General BoilerInformation
Table A1-24 shows blowdown tank sizing information
Table A1-25 provides heating surface information
Table A1-26 provides steam volume and disengaging area information
Table A1-27 provides recommended steam nozzle sizes
Table A1-28 provides recommended non-return valve sizes
Boiler RoomInformation
Figure A1-21 shows typical boiler room length requirements
Figure A1-22 shows typical boiler room width requirements
Figure A1-23 shows typical breeching arrangements
Stack SupportCapabilities
All standard Cleaver-Brooks Firetube Boilers with an LE option can support up to2000 lbs without additional support
LE Boilers 250 hp through 800 hp can be reinforced to support 3000 lbs
StackBreechingSize Criteria
The design of the stack and breeching must provide the required draft at each boilerflue gas outlet Proper draft is critical to burner performance
Although constant pressure at the flue gas outlet of the Model CB-LE is not requiredit is necessary to size the stackbreeching to limit flue gas pressure variation Theallowable pressure range is ndash025 WC to +025 WC
For additional information please review Section I4 General Engineering Data(Stacks) and Section F Stacks Stack and breeching sizes should always be providedby a reputable stack supplier who will design the stack and breeching system basedon the above criteria Your local Cleaver-Brooks authorized representative is capableof assisting in your evaluation of the stackbreeching design
Boiler RoomCombustion Air
When determining boiler room air requirements the size of the room air flow andvelocity of air must be reviewed as follows
1 Size (area) and location of air supply openings in boiler room
A Two (2) permanent air supply openings in the outer walls of the boiler room
are recommended Locate (1) at each end of the boiler room preferablybelow a height of 7 feet This allows air to sweep the length of the boiler
B Air supply openings can be louvered for weather protection but they shouldnot be covered with fine mesh wire as this type of covering has poor air flowqualities and is subject to clogging by dust or dirt
C A vent fan in the boiler room is not recommended as it could create a slightvacuum under certain conditions and cause variations in the quantity ofcombustion air This can result in unsatisfactory burner performance
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Model CBLE 125-800 HP Boilers
34
D Under no condition should the total area of the air supply openings be lessthan (1) square foot
E Size the openings by using the formulaArea (sq-ft) = CFMFPM
2 Amount of air required (cfm)
A Combustion Air = Rated bhp x 8 cfmbhp
B Ventilation Air = Maximum bhp x 2 cfmbhp
C Total recommended air = 10 cfmbhp - up to 1000 feet elevation Add 3percent more per 1000 feet of added elevation
3 Acceptable air velocity in Boiler Room (fpm)
A From floor to (7) foot height - 250 fpm
B Above (7) foot height - 500 fpm
Example Determine the area of the boiler room air supply openings for (1) 300 hpboiler at 800 feet altitude The air openings are to be 5 feet above floor level
bull Air required 300 x 10 = 3000 cfm (from 2B above)
bull Air velocity Up to 7 feet = 250 fpm (from 3 above)
bull Area Required Area = cfm = 3000250 = 12 sq-ft total
bull AreaOpening 122 = 6 sq-ftopening (2 required)
Notice
Consult local codes which may supersede these requirements
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Model CBLE 125-800 HP Boilers
35
This figure illustrates the basic gas valve arrangement on Cleaver-BrooksModel CB boiler and shows the contractors connection point The valves andcontrols between the contractor connection point and the gas main in thestreet are representative of a typical installation Actual requirements mayvary depending on local codes or local gas company requirements which
should be investigated prior to preparation of specifications and prior to con-struction
A Utilities service valveB Utilities service regulatorC Gas meterD Piping from meter to boiler
The size of the gas line from the meter to the gas pressure regulator at theboiler can be very important if gas pressures are marginal The gas line sizingis dependent on
1 Gas pressure at outlet of gas meter (C)2 Rate of gas flow required CFH3 Length of pipe run (D)4 Pressure required at contractor connection point
The local gas utility will advise the pressure that is available at the outlet oftheir meter
Figure A1-14 Typical Gas Piping Layout
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Model CBLE 125-800 HP Boilers
36
5
6
S
1
3
42
PILOT GAS LINE
S
S
MAIN GAS LINE
M M
ToBurner
GasSupply
11
10
97
12138
14 15
FLOW
FLOW
Figure A1-15 Model CB-LE Gas Train Components
BOILER
HP
MODEL CB
SUPPLYANDRE-
TURNCONN SIZES
(IN)(NPT)
A(IN)
RECOMMENDED OIL LINEA
SIZES(STANDARD PIPE)
(IN - IPS)
STOR-AGE
TANK TOBOILER
OR PUMPCONNECT
PUMPTO
BOILER
RE-TURN
LINE TOTANK
125150 200
34 12-12 1 1 1
250300350
34 34 1 1 1
400500600
34 11-34 1 1 1
700800
1 11-34 1 1 1
NOTE See No 2 Oil Line Sizing Instruction for systems with other conditions A For suction line condition with a maximum of 10 Feet of lift and a
total of 100 feet of suction line
Figure A1-16 No2 Oil Connection Size Location and Recommended Line Sizes
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Model CBLE 125-800 HP Boilers
37
Figure A1-17 No 2 Oil Piping Single Boiler
Installation Remote Oil Pump
Figure A1-18 No 2 Oil Piping Multiple Boiler
Installation Remote Oil Pumps
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Model CBLE 125-800 HP Boilers
38
Figure A1-19 No 2 Oil Piping Multiple Boiler
Installation
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Model CBLE 125-800 HP Boilers
39
Figure A1-20 No 2 Oil Piping Typical Arrangement
Table A1-24 Model CB-LE Blowdown
Tank Sizing
BOILER HP WATER (GAL)
125 97
150 118
200 145
250 146
300 176
350 210
400 177
500 209
600 250
700 800 296
NOTE Quantity of water removed from boiler by lowering normal water line 4
BOILER
HP
HEATING SURFACE (SQ-FT)
FIRESIDE WATERSIDE
125 625 679
150 750 820
200 1000 1092
250 1250 1346
300 1500 1623
350 1750 1932
400 2000 2151
500 2500 2691
600 3000 3262
700 800 3500 3810
Table A1-25 Heating Surface Model CB-LE
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Model CBLE 125-800 HP Boilers
40
BOILER HPSTEAM VOLUME CU-FT
STEAM DISENGAGING AREASQ-IN
HIGH PRESSUREA LOW PRESSUREB HIGH PRESSUREA LOW PRESSUREB
125 254 366 5371 5887
150 307 443 6511 7138
200 377 544 7985 8752
250 492 706 7980 8695
300 595 853 9651 10516
350 709 1017 11507 12538
400 721 979 9793 10593
500 837 1137 11376 12303
600 1015 1378 13787 14911
700-800 1198 1627 16273 17600
NOTE Based on normal water levelA Based on 150 psig design pressureB Based on 15 psig design pressure
Table A1-26 Steam Volume and Disengaging Area
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Model CBLE 125-800 HP Boilers
41
BOILERHP
BOILERCAPACITY(LBSHR)
OPERATING PRESSURES (PSIG)
50 75 100 125 150 175 200 250
100 3450
2-12 2-12 NA NA NA NA NA NA
125 4313 3 2-12 2-12 2-12 NA NA NA NA
150 5175 3 3 2-12 2-12 2-12 2-12 NA NA
200 6900 3 3 3 3 3 2-12 2-12 2-12
250 8625 4 3 3 3 3 3 3 3
300 10350 4 4 4 3 3 3 3 3
350 12025 4 4 4 4 4 3 3 3
400 13800 5 4 4 4 4 4 4 3
500 17210 6 5 5 4 4 4 4 4
600 20700 6 6 5 5 5 4 4 4
700 24150 6 6 6 5 5 5 5 4
800 27600 6 6 6 6 6 5 5 5
NOTE Valve sizes (300 Flanges) given in inchesStandard Non-Return valve selections limited to a maximum 2 to 1 turndown(50 of full load) selections based on typical non-return valve sizing recommen-dations For final valve selection contact your C-B authorized representative Forhigh turndown applications see Boiler Book Section I3 Table I3-3 Indicates pressure drop of less than 75 psig All other selections are less than6 psig pressure drop
Boiler HP
OPERATINGPRESSURE
PSIG125 150 200 250 300 350 400 500 600 700 800
15 8 8 10 10 12 12 12 12 12 12 12
30 6 6 8 8 8 10 10 10 12 12 12
40 6 6 6 8 8 8 10 10 10 12 12
50 6 6 6 6 8 8 8 10 10 10 12
75 4 4 6 6 6 8 8 8 8 10 10
100 4 4 6 6 6 6 6 8 8 8 10
125 4 4 4 6 6 6 6 8 8 8 8
150 3 3 4 4 6 6 6 6 6 8 8
200 25 3 4 4 4 4 6 6 6 6 6
250 25 3 3 4 4 4 4 6 6 6 6
NOTES1 Steam nozzle sizes given in inches2 Recommended steam nozzle sizes based on 4000 to 5000 fpm steam velocity3 All standard steam nozzle sizes for 150 psig design pressure or greater are the sameas 125 psig operating pressure on the above table To increase or decrease the standardsize request the change with your local Cleaver-Brooks authorized representative4 Shaded area denotes special surge load baffles must be installed to avoid possible wa-ter carry-over5 For incremental operating pressures see Table I3-1 Steam Systems Fundamentals
Table A1-28 Recommended Steam Nozzle Size (for
4000 to 5000 fpm nozzle velocity)
Table A1-29 Recommended Non-Return Valve Size
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httpslidepdfcomreaderfullcble-boiler-book 4243
Model CBLE 125-800 HP Boilers
42
1 Shortest boiler room length (Dwg A) is obtained by allowing for possible future tube replacement (from front or rearof boiler) through a window or doorway Allowance is only made for minimum door swing at each end of the boilerThis arrangement provides sufficient aisle space at the front of the boiler but a ldquotightrdquo space condition at the rear
If space permits approximately 15 additional feet should be allowed at the rear for additional aisle and workingspace
2 Next shortest boiler room length (Dwg B) is obtained by allowing for possible future tube replacement from thefront of the boiler Allowance is only made for minimum door swing at the rear
If space permits approximately 15 additional feet should be allowed at the rear for additional aisle and workingspace
3 A slightly longer boiler room (Dwg C) is obtained by allowing for possible future tube replacement from the rear ofthe boiler Allowance for door swing at the front provides sufficient aisle and working space at the front
Figure A1-21 Boiler Room Length (Typical Layouts)
BOILER HP 125-200 250-350 400-800
Dimension A 82 93 102
Dimension B 115 141 171
NOTES1 Recommended Minimum Distance Between Boiler and Wall Dimen-
sion ldquoArdquo allows for a ldquoclearrdquo 42 aisle between the water col-umn on the boiler and the wall If space permits this aisle
should be widened 2 Recommended Minimum Distance Between BoilersDimension ldquoBrdquo between boilers allows for a ldquoclearrdquo aisle of42 - 125 -200 hp48 - 250-350 hp60 - 400-800 hpIf space permits this aisle should be widened
Figure A1-22 Boiler Room Width (Typical Layout)
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
16
BOILER HP DIM 400 500 600 700 800
LENGTHS
Overall (60 ppm System) A 206 228 262 299 300
Shell B 147 168 200 233 233
Base Frame C 134 155 187 220 220
Front Head Extension (60 ppm System) D 27 28 30 34 35
Rear Head Extension E 32 32 32 32 32
Shell Ring Flange to Base F 12 12 12 12 12
Rear Ring Flange to Base G 12-12 12-12 12-12 12-12 12-12
Shell Flange to Outlet HH 139-12 156-12 182-12 216-12 216-12
Shell Flange to Return H 107 125 151-12 185 185
Over Tubesheets V 130 151 183 216 216
Shell Extension P 17 17 17 17 17
Table A1-8 Model CB-LE Hot Water Boiler Dimensions96rdquo (30 and 125 psig Design Pressure) - Sheet 1 of 2
Figure A1-6 CB-LE Hot Water 400-800 HP
s k o o r B r e v a
e l C
R
F G
WW
P
BB
D E
GG
Q
Z
Y T U
RR - RF - RD
X
HH
A
B
HI
L K
OOO
KK
M
N
EE
FF
DD
V
J
C
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Model CBLE 125-800 HP Boilers
17
WIDTHS
Overall I 113 113 113 113 115
ID Boiler J 96 96 96 96 96
Center to Entrance Box K 62 62 62 62 64
Center to Outside Hinge KK 62 62 62 62 62
Center to Lagging L 51 51 51 51 51
Base Outside M 72 72 72 72 72
Base Inside N 56 56 56 56 56
HEIGHTS
Overall OO 134 134 134 134 134
Base to Vent Outlet O 126 126 126 126 126
Height of Base Q 12 12 12 12 12
Base to Bottom of Boiler R 19 19 19 19 19
Base to Return and Outlet X 121-916 121-916 121-916 121-916 121-916
BOILER CONNECTIONS
Auxiliary Connection Z 1-14 1-14 1-14 1-14 1-14
Drain Front and Rear W 2 2 2 2 2
Water Return T 10A 10A 12A 12A 12A
Water Outlet (2rdquo Dip Tube Included) U 10A 10A 12A 12A 12A
Air Vent Y 2 2 2 2 2
VENT STACK
Diameter (Flanged Connection) BB 24 24 24 24 24
MINIMUM CLEARANCES
Rear Door Swing DD 53 53 53 53 53
Front Door Swing EE 108 108 108 108 108
Tube Removal Rear FF 131 152 184 217 217
Tube Removal Front GG 114 135 167 200 200
MINIMUM BOILER ROOM LENGTH ALLOWING FOR DOOR SWING AND TUBE REMOVAL FROM
Rear of Boiler RR 386 428 492 558 558
Front of Boiler RF 314 356 420 486 486
Thru Window or Doorway RD 308 329 361 394 394
WEIGHT IN LBS
Normal Water Capacity 20015 23300 28260 33360 33360
Approx Ship Wgt ndash 30 psig
Approx Ship Wgt ndash 125 psig
33300
37270
36900
40780
42150
46005
49650
53300
49750
53400
NOTES All connections are threaded unless indicated
A ANSI 150 psig flange
BOILER HP DIM 400 500 600 700 800
Table A1-8 Model CB-LE Hot Water Boiler Dimensions
96rdquo (30 and 125 psig Design Pressure) - Sheet 2 of 2
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Model CBLE 125-800 HP Boilers
18
BOILER HP
MOTOR HP
60PPM
30PPM
25PPM
20PPM
125 5 10 5 10
150 75 10 10 10
200 15 15 20 NA
250 75 10 15 15
300 10 15 20 30
350 15 25 40 40
400 10 15 20 20
500 15 20 25 30
600 25 30 50 60
700 30 50 75 75
800 50 75 NA NA
NOTES For elevations above 700rsquo - contact your local
Cleaver-Brooks authorized representative
Table A1-9 Model CB-LE Blower Motor Selection -
Operating Pressures 150 psig and Less and All Hot
Water Boilers
BOILER HP
MOTOR HP
60
PPM
30
PPM
25
PPM
20
PPM
125 5 10 10 10
150 10 10 10 15
200 15 20 20 NA
250 75 10 15 20
300 10 20 30 40
350 20 30 40 50
400 10 15 20 25
500 20 25 30 40
600 25 40 60 60
700 40 60 75B 75C
800 60 75A NA NA
NOTES For elevation above 700rsquo - contact your local
Cleaver-Brooks authorized representative
A Downrate to 770 hp
B Downrate to 675 hp
C Downrate to 660 hp
Table A1-10 Model CB-LE Blower Motor Selection -
Operating Pressures Greater than 150 psig (Steam
Boilers)
09-09
Table A1-11 Blower Motor Selection CB-LE NTI BoilersTable A1-12 Turndown Guarantee for CB-LE NTI
Boilers - Natural Gas amp 2 Oil
Boiler SizeTurndown
9 ppm 15 ppm
125 41 41
150 41 51
200 41 51
250 51 51
300 51 51
350 51 51
400 51 61
500 51 61
600 61 61
700 71 71
800 71 71
800 HP to be derated to 720 HP for 9 ppm and 750 HP
for 15 ppm
Altitude 700 ft and less - Design Pressure 150 psi and less
800 HP - to be de-rated to 720 HP for 9 ppm and to 750 HP for 15 ppm
mpp9mpp51Nominal
Boiler Size Blower Motor HP Blower Motor HP
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Model CBLE 125-800 HP Boilers
19
BOILER HPFUEL
SERIES
HOT WATER STEAM
30 PSIG 125 PSIG 15 PSIG 150 PSIG 200 PSIG
125100 11200 11600 11300 12000 12600200 11400 11800 11500 12400 13000
700 11300 11700 11400 12300 12900
150
100 12300 12700 12400 13200 13900
200 12500 12900 12600 13500 14200
700 12300 12700 12400 13300 14000
200
100 14400 14800 14500 15500 16300
200 14500 14900 14600 15600 16400
700 14500 14900 14600 15600 16400
250
100 20700 21500 20800 22000 23800
200 21400 22200 21500 22800 24600
700 20900 21700 21000 22500 24300
300
100 23100 23900 23200 24800 26800
200 23500 24300 23600 25200 27200
700 23400 24200 23500 25000 27000
350
100 26200 27000 26300 27600 29100
200 26700 27500 26800 27800 29300
700 26400 27200 26500 27700 29200
400
100 33000 36970 33200 36270 39380
200 33300 37270 33500 36570 39680
700 33200 37170 33400 36470 39580
500
100 36600 40470 36810 39670 43480
200 36900 40780 37110 39970 43580
700 36800 40680 37010 39870 43280
600
100 41850 45905 42000 44725 49100
200 42150 46005 42300 45025 49400
700 42050 45915 42200 44925 49300
700800
100 49450 53000 49300 51850 57015
200 49750 53300 49600 52150 57315
700 49650 53200 49500 52050 57215
NOTES1 Weights shown are based on standard product offering for current listed boilers If units are of special design and construction actual weightwill be determined at time of shipment Shipment will then be made on shippers weight and count All weights are in US pounds
Table A1-13 Model CB-LE Boiler Weights
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Model CBLE 125-800 HP Boilers
20
VALVE
SETTING15 PSIG STEAM 100 PSIG STEAM 125 PSIG STEAM 150 PSIG STEAM 200 PSIG STEAM 250 PSIG STEAM 300 PSIG STEAM
BOILERHP
NO OF
VALVES-REQD
OUTLET
SIZE(IN)
NO OF
VALVES-REQD
OUTLET
SIZE(IN)
NO OF
VALVESREQD
OUTLET
SIZE(IN)
NO OF
VALVES-REQD
OUTLET
SIZE(IN)
NO OF
VALVES-REQD
OUTLET
SIZE(IN)
NO OF
VALVESREQD
OUTLET
SIZE(IN)
NO OF
VALVESREQD
OUTLET
SIZE(IN)
125 1 3 2 1-12 2(1) 1-12(1) 1-14
2(1) 1-12(1) 1-14
2(1) 1-14(1) 1
2 1 2 1
150 1 3 2(1) 2(1) 1-12
2 1-14 2(1) 1-12(1) 1-14
2(1) 1(1) 1-14
2 1 2 1
200 2 2-12 2 2 2 1-12 2 1-12 2(1) 1-12(1) 1-14
2 1-14 2(1) 1(1) 1-14
250 2(1) 2-12(1) 3
2(1) 2-12(1) 2
2(1)2(1)1-12
2(1) 2(1) 1-12
2(1)1-12(1)1-14
2(1) 1-12(1) 1-14
2 1-14
300 2 3 2(1) 2-12(1) 2
2 2 2(1) 2(1) 1-12
2 1-12 2(1)1-12(1)1-14
2(1) 1-12(1) 1-14
350 3(1) 2(2) 3
3(1) 2-12(2) 2
2(1)2(1)1-12
2 2 2(1) 1-12(1) 2
2 1-12 2(1) 1-12(1) 1-14
400 3(2) 3(1) 2-12
3(1) 2(2) 2-12
2(1)2(1)2-12
2(1) 2-12(1) 2
2(1) 1-12(1) 2
2(1) 2(1) 1-12
2 1-12
500 3 (3) 3 3 2-12 2 2-12 2(1) 2-12(1) 2
2(1) 2(1) 2-12
2(1) 2(1)1-12
2(1) 1-12(1) 2
600 4 3 4(3) 2-12(1) 2
3 2-12 2 2-12 2(1) 2(1) 2-12
2 2 2 2
700 5(3) 3(2) 2-12
5(3) 2-12(2) 2
3 2-12 3(2) 2-12(1) 2
2 2-12 2(1) 2(1) 2-12
2 2
800 5(3) 3(2) 2-12
5(3) 2-12(2) 2
4(3) 2-12(1) 2
3(2) 2-12(1) 2
2 2-12 2(1) 2(1) 2-12
2(1) 2(1) 2-12
NOTES Valve manufacturers are Kunkle Consolidated or Conbraco depending on availability This table revised 042012
Table A1-14 Steam Boiler Safety Valve Openings
VALVE
SETTING 30 PSIG HW 60 PSIG HW 100 PSIG HW 125 PSIG HW
BOILER HPNO OF
VALVESREQD
OUTLETSIZE(IN)
NO OFVALVESREQD
OUTLETSIZE(IN)
NO OFVALVESREQD
OUTLETSIZE(IN)
NO OFVALVESREQD
OUTLETSIZE(IN)
125 1 2-12 1 2 1 2 1 1-14
150 1 2-12 1 2-12 1 2 1 2
200 2(1) 2-12(1) 1-14
1 2-12 1 2 1 2
250 2 (1) 2(1) 2-12
1 2-12 1 2-12 1 2
300 2 2-12 2(1) 1(1) 2-12
1 2-12 1 2-12
350 3(2) 2-12(1) 1
2(1) 2-12(1) 2
1 2-12 1 2-12
400 3 (1) 2(2) 2-12 2 (1) 2(2) 2-12 2 (1) 1(1) 2-12 1 2-12
500 4 (1) 1(3) 2-12
2 2-12 2(1) 2-12(1) 1-14
2(1) 1(1) 2-12
600 4(3) 2-12(1) 2
3(1) 1-1(2) 2-12
2(1) 2(1) 2-12
2(1) 2-12(1) 1-14
700 amp 800 5 (1) 1(4) 2-12
3(1) 2(2) 2-12
2 2-12 2(1) 2-12(1) 2
NOTES Hot water relief valves are Kunkle 537
Table A1-15 Hot Water Boiler Relief Valve Openings
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Model CBLE 125-800 HP Boilers
21
BOILER HP A B C D E F G X1 X2 X3
125 6 9 112 39-12 57-12 4 44-12 10 9-34 22-12
150 6 9 136 39-12 57-12 4 44-12 10 9-34 22-12
200 6 9 167 39-12 57-12 4 44-12 10 9-34 22-12
250 6 12 131 46 70 4 56 10 22 22-12
300 6 12 158 46 70 4 56 10 22 22-12
350 6 12 188 46 70 4 56 10 22 22-12
NOTE
All numbers in table are in inches
6-inch high mounting piers recommended for use beneath the boiler base frame The use of these piers provides increased inspection
accessibility to the piping beneath the boiler and added height for washing down the area beneath the boiler
Figure A1-7 Space Required to Open Rear Head on Model CB-LE Boilers Equipped with Davits
BOILER HPDIMENSIONS (INCHES)
A B C D E
CB-125 THRU CB-200 33 55 45 68 32
CB-250 THRU CB-350 42 69 58 86 43
CB-400 THRU CB-800 51 88 71 109 53
Figure A1-8 Model CB-LE Boiler Mounting Piers (60rdquo and 78rdquo)
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Model CBLE 125-800 HP Boilers
22
BOILER HP A B C D E F G
400 6 14 134 50 78 6-12 58-78
500 6 14 155 50 78 6-12 58-78
600 6 14 187 50 78 6-12 58-78
700-800 6 14 220 50 78 6-12 58-78
NOTE1 All numbers in table are in inches2 6-inch high mounting piers recommended for use beneath the boiler base frame The use of these piers provides in-
creased inspection accessibility to the piping beneath the boiler and added height for washing down the area beneaththe boiler
Figure A1-9 Model CB-LE Boiler Mounting Piers (96rdquo)
CBLE 250-350HP
CBLE 400-800HP
Motor HP Hole Number
75 1
15 1
25 2
40 3
Motor HP Hole Number
10 1
20 1
30 250 2
75 3
Figure A1-10 Front Davit Support
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Model CBLE 125-800 HP Boilers
23
BOILERHP
VIEW
ALL DIMENSIONS IN INCHES
A B C D E
125 All B 80-14 29-34 70-12 10 3
150 All B 80-14 29-34 83-12 10 3
200 All B 80-14 29-34 114-12 10 3
250Steam B 99 36 72 10 3
Hot Water B 99 36 81 10 3
300
Steam B 99 36 99 10 3
Hot Water B 99 36 108 10 3
350Steam B 99 36 129 10 3
Hot Water B 99 36 138 10 3
400Steam B 119 35-34 78 11 3
Hot Water B 119 35-34 78 11 3
500Steam B 119 35-34 99 11 3
Hot Water B 119 35-34 99 11 3
600Steam B 119 35-34 131 11 3
Hot Water B 119 35-34 131 11 3
700 amp 800Steam B 119 35-34 164 11 3
Hot Water B 119 35-34 164 11 3
NOTE A B and C dimensions may vary by 12 inch
Figure A1-11 Lifting Lug Location Model CB-LE Boilers
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Model CBLE 125-800 HP Boilers
24
PERFORMANCE DATA
The Low Emission Option provides NOx reduction at current published andpredicted fuel-to-steam efficiencies
Specifying BoilerEfficiency
Cleaver-Brooks offers an industry leading fuel-to-steam boiler efficiency guaranteefor Model CB-LE Firetube Boilers The guarantee is based on the fuel-to-steam
efficiencies shown in the efficiency tables and the following conditions Theefficiency percent number is only meaningful if the specific conditions of theefficiency calculations are clearly stated in the specification (see Cleaver-Brookspublication CB-7768 for a detailed description of efficiency calculations)
When specifying the efficiencies in the tables be sure to include the specificguarantee conditions to maximize the effectiveness of your efficiency specification Ifyou have any questions regarding the efficiency specifications please contact yourlocal Cleaver-Brooks authorized representative
EfficiencySpecification
The boiler manufacturer shall guarantee that at the time of startup the boiler willachieve fuel-to-steam efficiency (as shown in Table A1-16 and Table A1-17) at100 firing rate (add efficiency guarantees at 25 50 and 75 of rating if
required) If the boiler(s) fail to achieve the corresponding guaranteed efficiency aspublished the boiler manufacturer will rebate to the ultimate boiler owner tenthousand dollars ($10000) for every full efficiency point (10) that the actualefficiency is below the guaranteed level
The specified boiler efficiency is based on the following conditions
1 Fuel specification used to determine boiler efficiency
bull Natural Gas
Carbon (wt) = 6998Hydrogen (wt) = 2231Sulfur (wt) = 00
Heating value Btulb = 21830bull No 2 Oil
Carbon (wt) = 858Hydrogen (wt) = 127Sulfur (wt) = 02Heating value Btulb = 19420
No 6 Oil
Carbon (wt) = 866Hydrogen (wt) = 109Sulfur (wt) = 209Heating value Btulb = 18830
2 Efficiencies are based on ambient air temperature of 80 degF relative humidity of30 and 15 excess air in the exhaust flue gas
3 Efficiencies are based on manufacturerrsquos published radiation and convectionlosses (For Cleaver-Brooks radiation and convection losses see BoilerEfficiency Facts Guide publication number CB-7767)
4 Any efficiency verification testing will be based on the stack loss method
For efficiencies and stack temperatures at operating pressures not listed followthese procedures
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
25
When the operating steam pressure is between 10 psig and 125 psig interpolatethe values from the efficiency tables
When the operating steam pressure is above 125 psig estimated efficiency can becalculated as follows
Example
Boiler 350 hpFuel natural gas
Operating steam pressure 200 psig
Find the fuel-to-steam efficiency at 100 firing rate From Table A1-16 for a 350hp boiler operating at 100 firing rate and an operating steam pressure of 125psig the efficiency is 825
Using Figure A1-12 note that the stack temperature increases 36 degF at the higheroperating pressure To estimate boiler efficiency use this rule of thumb For every40 degF increase in stack temperature efficiency decreases by 1 Since the stacktemperature rise is 36 degF the decrease in the boiler efficiency at 200 psig operatingpressure is calculated as follows 3640 =9 Therefore the boiler efficiency at200 psig operating pressure is 825 -9 = 816
Emissions The emission data included in this section consists of typical emission levels forModel CB boilers equipped with 60 30 25 and 20 ppm LE Options when firingnatural gas and No 2 oil
Notice
The data in Table A1-18 and Table A1-19 represent typical emission levels only
Guaranteed emission levels are available from your local Cleaver-Brooks authorized
representative
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
26
BOILER
HP
OPERATING PRESSURE = 10 psig OPERATING PRESSURE = 125 psig
OF LOAD OF LOAD
25 50 75 100 25 50 75 100
125 833 836 834 832 804 809 810 810
150 844 846 845 843 815 820 820 821
200 850 853 851 849 822 827 827 827
250 850 847 840 833 820 820 816 813
300 853 853 846 839 826 827 822 819
350 853 857 852 845 826 832 828 825
400 845 847 846 844 818 822 824 822
500 855 857 855 852 828 832 833 831
600 857 860 858 856 829 835 836 835
700 857 862 860 857 830 836 836 836
800 858 861 859 856 831 836 837 835
Table A1-16 Predicted Fuel-to-Steam Efficiencies - Natural Gas
Figure A1-12 Predicted Stack Temperature Increase for Pressure Greater Than 125 psig
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
27
Table A1-18 CB-LE Boilers - Natural Gas Emission Levels
POLLUTANT
ESTIMATED LEVEL
60 ppm 30 ppm 25 ppm 20 ppm 15 ppm 9 ppm
CO ppmA
lbMMBtu
50150B
004011
50150B
004011
50150B
004011
50150B
004011
50
004
50
004
NOx ppmA
lbMMBtu
60
007
30
0035
25
003
20
0024
15
0018
9
0011
SOx ppmA
lbMMBtu
1
0001
1
0001
1
0001
1
0001
1
0001
1
0001
HCVOC5 ppmA
lbMMBtu
10
0004
10
0004
10
0004
10
0004
10
0004
10
0004
PM ppmA
lbMMBtu
-
001
-
001
-
001
-
001
-
001
-
001
A ppm levels are given on a dry volume basis and corrected to 3 oxygen (15 excess air)
B CO emission for 60 30 25 amp 20 ppm system is 50 ppm (004 lbMMBtu) when boiler is operating above 50 of rated capacity
CO emission is 150 ppm (011 lbMMBtu) when boiler is operating below 50 of rated capacity
Table A1-17 Predicted Fuel-to-Steam Efficiencies - No 2 Oil
BOILER
HP
OPERATING PRESSURE = 10 psig OPERATING PRESSURE = 125 psig
OF LOAD OF LOAD
25 50 75 100 25 50 75 100
125 867 869 867 866 837 842 843 843
150 878 880 878 876 848 853 853 854
200 884 887 884 882 856 860 860 860
250 883 881 874 867 853 853 849 847
300 886 887 880 873 859 860 855 852
350 886 890 885 878 859 866 861 858
400 879 881 879 876 851 855 856 855
500 889 890 889 886 861 865 866 864
600 890 894 892 890 862 868 869 868
700 891 895 893 891 863 869 870 869
800 892 895 893 890 864 869 870 868
Table A1-19 CB-LE Boilers - No 2 Oil Emission Levels
POLLUTANTESTIMATED LEVEL
60 ppm LE Option 30 25 20 ppm LE Option 15 ppm 9 ppm
CO ppmA
lbMMBtu
50
0039
50
0039
50
0039
50
0039
NOx ppmA
lbMMBtu140
018690
012085
011370
0093
SOx ppmA
lbMMBtu
278
052
278
052
278
052
278
052
HCVOCs ppmA
lbMMBtu
4
0002
4
0002
4
0002
4
0002
PM ppmA
lbMMBtu
-
0025
-
0025
-
0025
-
0025
A ppm levels are given on a dry volume basis and corrected to 3 oxygen (15 excess air)
BASED ON THE FOLLOWING CONSTITUENT LEVELS
Fuel-bound Nitrogen content = 0015 by weight
Sulfur content = 05 by weight
Ash content = 001 by weight
09-09
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Model CBLE 125-800 HP Boilers
28
ENGINEERING DATA
Sound Level Table A1-20 gives a summary of predicted sound pressure levels for Model CBboilers with 30 ppm LE Options Contact your local Cleaver-Brooks authorizedrepresentative for sound levels or other LE Options
Units - The units for the sound level tables are dbA (decibels measured on the A-weighted scale) in reference to 00002 microbars (20 micro-Newtons per square
meter) Their reference are standardly used in specifying and reporting soundpressure levels on industrial equipment
Test Method - The sound pressure levels in the above tables were obtained fromtests in accordance with the ldquoABMA Test Code for the Measurement of Sound fromPackaged Boilersrdquo In accordance with this code the sound pressure levels reportedwere measured on the boiler centerline 4-12 feet vertically above the bottom of thebase rails and 3 feet horizontally in front of the end of the blower motor or frontsurface of the electrical cabinet
Sound Level Meter - The sound level meter used complies with ANSI S14 Type 1(Precision) The readings are taken with the meter set for slow response andcorrected for background levels
Sound Pressure - The large size boilers the need for auxiliary equipment and thenecessary interconnecting piping make it impractical (and sometimes impossible) toprovide a boiler testing environment which is suitable for taking the data needed todevelop Sound Pressure Power levels
Typical Values - Sound pressure levels (dbA) for the same boiler will vary betweenboiler rooms Sound levels will vary with motor type NOx levels and altitudes Inaddition variations will occur between different people using different sound meterson the same boiler And finally no two boilers can be expected to give precisely thesame sound levels For these reasons we can only predict but not guarantee soundlevels (dbA)
BOILER HP 125 150 200 250 300 350 400 500 600 700 800
HFO dbA 84 84 84 83 84 85 84 85 85 88 90
LFO dbA 82 82 83 81 82 83 82 83 83 84 89
HFG dbA 82 82 83 82 83 84 83 83 85 87 90
LFG dbA 81 81 82 81 82 83 81 81 82 84 88
NOTES1 Sound pressure levels measured on boilers operating in various locations and ex-
pressed in dbA are as shown2 Based on standard altitude fans and fan motors 60 Hz3 Contact your local Cleaver-Brooks authorized representative for sound levels of 60 25or 20 ppm LE Options
ABBREVIATIONS
HF = High Fire LF = Low Fire O = Oil G = Gas
Table A1-20 Model CBLE Predicted Sound Levels 30 ppm NOx Systemss
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
29
Gas-Fired Burners Table A1-21 shows gas pressure with standard over- and undersized gas trains
Table A1-22 shows minimum required gas pressure altitude conversion
Figure A1-13 shows standard gas train sizes and locations for Model CB FiretubeBoilers
Figure A1-14 shows typical gas train piping layouts for multiple boiler applications
Figure A1-15 shows standard gas train components
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
30
Table A1-21 Standard Undersize and Oversize Gas Trains
CBLE
BOILER HP GAS TRAINSIZE
UPSTREAMVALVE
DOWNSTREAMVALVE
EMISSIONS LEVEL 09 ppm 15 ppm 20 ppm 30 ppm 60 ppm UC
125 HP 15 in BB BB 33 - 49 psi 33 - 49 psi 08 - 50 psi 07 - 50 psi 07 - 50 psi 07 - 50 ps
125 HP 15 in PC PC 34 - 50 psi 34 - 50 psi 09 - 50 psi 08 - 50 psi 08 - 50 psi 08 - 50 ps
125 HP 20 in BB BB 31 - 33 psi 31 - 33 psi 06 - 08 psi 06 - 07 psi 05 - 07 psi 05 - 07 ps
125 HP 20 in PC PC 31 - 34 psi 31 - 34 psi 06 - 09 psi 06 - 08 psi 06 - 08 psi 05 - 08 ps
125 HP 25 in PC PC 30 - 31 psi 30 - 31 psi 04 - 06 psi 04 - 06 psi 04 - 05 psi 04 - 05 ps
125 HP 30 in PC PC 29 - 30 psi 29 - 30 psi 04 - 04 psi 04 - 04 psi 04 - 04 psi 03 - 04 ps
125 HP 40 in PC PC 29 - 29 psi 29 - 29 psi 04 - 04 psi 03 - 04 psi 03 - 04 psi 03 - 03 ps
150 HP 15 in BB BB 37 - 55 psi 39 - 58 psi 10 - 47 psi 09 - 50 psi 09 - 50 psi 09 - 50 ps
150 HP 15 in PC PC 38 - 57 psi 40 - 60 psi 11 - 42 psi 11 - 50 psi 10 - 50 psi 10 - 50 ps
150 HP 20 in BB BB 34 - 37 psi 36 - 39 psi 07 - 10 psi 06 - 09 psi 06 - 09 psi 06 - 09 ps
150 HP 20 in PC PC 34 - 38 psi 36 - 40 psi 07 - 11 psi 07 - 11 psi 07 - 10 psi 06 - 10 ps
150 HP 25 in PC PC 32 - 34 psi 34 - 36 psi 05 - 07 psi 04 - 06 psi 04 - 06 psi 04 - 06 ps
150 HP 30 in PC PC 32 - 32 psi 34 - 34 psi 04 - 05 psi 04 - 04 psi 04 - 04 psi 03 - 04 ps
150 HP 40 in PC PC 31 - 32 psi 33 - 34 psi 04 - 04 psi 03 - 04 psi 03 - 04 psi 03 - 03 ps
200 HP 15 in BB BB 46 - 69 psi 50 - 75 psi 16 - 50 psi 15 - 50 psi 15 - 50 ps
200 HP 15 in PC PC 48 - 72 psi 52 - 78 psi 18 - 50 psi 17 - 50 psi 17 - 50 ps
200 HP 20 in BB BB 41 - 46 psi 45 - 50 psi 10 - 16 psi 10 - 15 psi 10 - 15 ps
200 HP 20 in PC PC 41 - 48 psi 45 - 52 psi 11 - 18 psi 11 - 17 psi 10 - 17 ps
200 HP 25 in PC PC 38 - 41 psi 42 - 45 psi 07 - 10 psi 07 - 10 psi 06 - 10 ps
200 HP 30 in PC PC 36 - 38 psi 40 - 42 psi 06 - 07 psi 05 - 07 psi 05 - 06 ps
200 HP 40 in PC PC 36 - 36 psi 40 - 40 psi 05 - 06 psi 05 - 05 psi 04 - 05 ps
250 HP 15 in BB BB 41 - 62 psi 44 - 67 psi 24 - 50 psi 24 - 27 psi 24 - 26 psi 23 - 26 ps
250 HP 15 in PC PC 45 - 67 psi 48 - 72 psi 28 - 50 psi 27 - 28 psi 27 - 27 psi 27 - 27 ps
250 HP 20 in BB BB 33 - 38 psi 37 - 41 psi 16 - 24 psi 16 - 24 psi 16 - 24 psi 15 - 23 ps
250 HP 20 in PC PC 34 - 40 psi 37 - 43 psi 17 - 28 psi 17 - 27 psi 16 - 27 psi 16 - 27 ps
250 HP 25 in PC PC 29 - 33 psi 32 - 37 psi 11 - 16 psi 11 - 16 psi 11 - 16 psi 10 - 15 ps
250 HP 30 in PC PC 27 - 29 psi 31 - 32 psi 09 - 11 psi 09 - 11 psi 09 - 11 psi 09 - 10 ps
250 HP 40 in PC PC 26 - 27 psi 29 - 31 psi 08 - 09 psi 08 - 09 psi 08 - 09 psi 08 - 09 ps
300 HP 15 in - 20 in BB BB 55 - 83 psi 57 - 85 psi 30 - 50 psi 30 - 36 psi 30 - 35 psi 30 - 35 ps
300 HP 15 in - 20 in PC PC 58 - 87 psi 60 - 90 psi 33 - 50 psi 33 - 37 psi 33 - 36 psi 33 - 36 ps
300 HP 20 in BB BB 46 - 55 psi 47 - 57 psi 21 - 30 psi 21 - 30 psi 20 - 30 psi 20 - 30 ps
300 HP 20 in PC PC 47 - 58 psi 48 - 60 psi 22 - 33 psi 22 - 33 psi 21 - 33 psi 21 - 33 ps
300 HP 30 in PC PC 39 - 46 psi 40 - 47 psi 13 - 21 psi 13 - 21 psi 12 - 20 psi 12 - 20 ps
300 HP 40 in PC PC 37 - 39 psi 39 - 40 psi 11 - 13 psi 11 - 13 psi 10 - 12 psi 10 - 12 ps
350 HP 15 in - 20 in BB BB 64 - 90 psi 62 - 90 psi 42 - 50 psi 42 - 50 psi 41 - 50 psi 41 - 50 ps
350 HP 15 in - 20 in PC PC 68 - 90 psi 66 - 90 psi 46 - 50 psi 46 - 50 psi 45 - 50 psi 45 - 50 ps
350 HP 20 in BB BB 54 - 64 psi 53 - 62 psi 32 - 42 psi 32 - 42 psi 32 - 41 psi 31 - 41 ps
350 HP 20 in PC PC 56 - 68 psi 54 - 66 psi 34 - 46 psi 34 - 46 psi 33 - 45 psi 33 - 45 ps
350 HP 25 in PC PC 43 - 54 psi 42 - 53 psi 21 - 32 psi 21 - 32 psi 20 - 32 psi 20 - 31 ps
350 HP 30 in PC PC 40 - 43 psi 38 - 42 psi 17 - 21 psi 17 - 21 psi 17 - 20 psi 16 - 20 ps
350 HP 40 in PC PC 37 - 40 psi 36 - 38 psi 15 - 17 psi 15 - 17 psi 14 - 17 psi 14 - 16 ps
400 HP 15 in - 20 in BB BB 69 - 90 psi 69 - 90 psi 46 - 50 psi 46 - 50 psi 45 - 50 psi 45 - 50 ps
400 HP 15 in - 20 in PC PC 74 - 90 psi 75 - 90 psi 51 - 87 psi 51 - 77 psi 51 - 77 psi 51 - 77 ps
400 HP 20 in BB BB 55 - 69 psi 56 - 69 psi 32 - 46 psi 32 - 46 psi 32 - 45 psi 32 - 45 ps
400 HP 20 in PC PC 57 - 74 psi 58 - 75 psi 34 - 50 psi 34 - 50 psi 34 - 50 psi 34 - 50 ps
400 HP 25 in PC PC 41 - 55 psi 42 - 56 psi 18 - 32 psi 18 - 32 psi 18 - 32 psi 18 - 32 ps
400 HP 30 in PC PC 37 - 41 psi 38 - 42 psi 13 - 18 psi 13 - 18 psi 13 - 18 psi 13 - 18 ps
400 HP 40 in PC PC 34 - 37 psi 35 - 38 psi 11 - 13 psi 10 - 13 psi 10 - 13 psi 10 - 13 ps
500 HP 20 in - 25 in BB PC 58 - 76 psi 58 - 76 psi 46 - 50 psi 46 - 50 psi 45 - 50 psi 45 - 50 ps
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Model CBLE 125-800 HP Boilers
31
BB = Butter Ball PC = Plug Cock
NOTE In cases where the gas train increases in size after the regulating valve two diameters are listed The first number is the customer connection size
500 HP 20 in - 25 in PC PC 60 - 83 psi 60 - 83 psi 48 - 50 psi 47 - 50 psi 47 - 50 psi 47 - 50 psi
500 HP 25 in PC PC 39 - 58 psi 39 - 58 psi 27 - 46 psi 27 - 46 psi 27 - 45 psi 26 - 45 psi
500 HP 30 in PC PC 33 - 39 psi 33 - 39 psi 20 - 27 psi 20 - 27 psi 20 - 27 psi 20 - 26 psi
500 HP 40 in PC PC 28 - 33 psi 28 - 33 psi 16 - 20 psi 16 - 20 psi 15 - 20 psi 15 - 20 psi
600 HP 20 in - 25 in BB PC 80 - 90 psi 80 - 90 psi 65 - 90 psi 65 - 90 psi 64 - 89 psi 63 - 88 psi
600 HP 20 in - 25 in PC PC 82 - 90 psi 82 - 90 psi 67 - 100 psi 67 - 100 psi 66 - 99 psi 66 - 99 psi
600 HP 25 in PC PC 54 - 80 psi 54 - 80 psi 39 - 50 psi 38 - 50 psi 38 - 50 psi 37 - 50 psi
600 HP 25 in - 30 in PC PC 52 - 54 psi 52 - 54 psi 37 - 39 psi 36 - 38 psi 35 - 38 psi 35 - 37 psi
600 HP 30 in PC PC 43 - 52 psi 43 - 52 psi 28 - 37 psi 27 - 36 psi 27 - 35 psi 26 - 35 psi
600 HP 40 in PC PC 37 - 43 psi 37 - 43 psi 22 - 28 psi 21 - 27 psi 20 - 27 psi 20 - 26 psi
700 HP 20 in - 30 in BB PC 110 - 150 psi 107 - 150 psi 87 - 131 psi 86 - 130 psi 86 - 129 psi 86 - 128 psi
700 HP 20 in - 30 in PC PC 113 - 150 psi 110 - 150 psi 90 - 135 psi 89 - 134 psi 89 - 134 psi 89 - 133 psi
700 HP 25 in - 30 in PC PC 71 - 90 psi 68 - 90 psi 48 - 50 psi 47 - 50 psi 47 - 50 psi 46 - 50 psi
700 HP 30 in PC PC 60 - 71 psi 57 - 68 psi 36 - 48 psi 36 - 47 psi 35 - 47 psi 35 - 46 psi
700 HP 40 in PC PC 51 - 60 psi 48 - 57 psi 28 - 36 psi 27 - 36 psi 27 - 35 psi 26 - 35 psi
800 HP 20 in - 30 in BB PC 108 - 150 psi 107 - 150 psi 106 - 150 psi
800 HP 20 in - 30 in PC PC 112 - 150 psi 111 - 150 psi 110 - 150 psi800 HP 25 in - 30 in PC PC 61 - 90 psi 60 - 100 psi 59 - 100 psi
800 HP 30 in PC PC 48 - 61 psi 47 - 50 psi 46 - 50 psi
800 HP 40 in PC PC 35 - 48 psi 34 - 47 psi 34 - 46 psi
Standard Gas Train size is highlighted
Table A1-21 Standard Undersize and Oversize Gas Trains (Continued)
CBLE
BOILER HP GAS TRAINSIZE
UPSTREAMVALVE
DOWNSTREAMVALVE
EMISSIONS LEVEL 09 ppm 15 ppm 20 ppm 30 ppm 60 ppm UC
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Model CBLE 125-800 HP Boilers
32
ALTITUDE(FT)
CORRECTIONFACTOR
ALTITUDE(FT)
CORRECTIONFACTOR
1000 104 6000 1252000 107 7000 130
3000 111 8000 135
4000 116 9000 140
5000 121 - -
To obtain minimum required gas pressure at altitudesabove 700 feet multiply the pressure by the listed factorsInches WC x 0577 = ozsq-inOzsq-in x 1732 = Inches WCInches WC x 00361= psigOzsq-in x 00625 = psigPsig x 2771 = Inches WCPsig x 160 = Ozsq-in
Table A1-22 Minimum Required Regulated Gas Pressure
Altitude Conversion
BOILERHP
TYPE OF GAS AND HEAT CONTENT
NATURAL GAS1000 (Btucu-ft)
PROPANE GAS2550 (Btucu-ft)
125 5103 2000
150 6124 2402
200 8165 3202
250 10206 4002
300 12247 4802
350 14280 5600
400 16329 6404
500 20415 8006
600 24494 9605
700 28576 11206
800 32659 12807
Table A1-23 Maximum Gas Consumption (CFH)
for Natural Gas and Propane Vapor
BOILER
HP
MODEL CB
CONNECTION SIZE
(IN NPT)
LOCATIONDIMENSION
ldquoArdquo (IN)
125-200 1-12 52
250-350 2 56
400 2 58
500 2-12 60
600 2-12 - 3 71
700-800 3 65
Figure A1-13 Standard Gas Train Connection Size and Location
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Model CBLE 125-800 HP Boilers
33
Oil-Fired Burners Fuel oil consumption information is shown on the boiler rating sheets in theDimensions and Rating Section
Figure A1-16 shows the oil connection sizes and locations for Model CB Boilersfiring No 2 oil
Figure A1-17 through Figure A1-18 show typical oil systems and layouts
Figure A1-19 and Figure A1-20 show the detail of an oil transfer tank (day tank)typically utilized to provide a storage reservoir between the oil system supply pumpand the boiler oil pump
General BoilerInformation
Table A1-24 shows blowdown tank sizing information
Table A1-25 provides heating surface information
Table A1-26 provides steam volume and disengaging area information
Table A1-27 provides recommended steam nozzle sizes
Table A1-28 provides recommended non-return valve sizes
Boiler RoomInformation
Figure A1-21 shows typical boiler room length requirements
Figure A1-22 shows typical boiler room width requirements
Figure A1-23 shows typical breeching arrangements
Stack SupportCapabilities
All standard Cleaver-Brooks Firetube Boilers with an LE option can support up to2000 lbs without additional support
LE Boilers 250 hp through 800 hp can be reinforced to support 3000 lbs
StackBreechingSize Criteria
The design of the stack and breeching must provide the required draft at each boilerflue gas outlet Proper draft is critical to burner performance
Although constant pressure at the flue gas outlet of the Model CB-LE is not requiredit is necessary to size the stackbreeching to limit flue gas pressure variation Theallowable pressure range is ndash025 WC to +025 WC
For additional information please review Section I4 General Engineering Data(Stacks) and Section F Stacks Stack and breeching sizes should always be providedby a reputable stack supplier who will design the stack and breeching system basedon the above criteria Your local Cleaver-Brooks authorized representative is capableof assisting in your evaluation of the stackbreeching design
Boiler RoomCombustion Air
When determining boiler room air requirements the size of the room air flow andvelocity of air must be reviewed as follows
1 Size (area) and location of air supply openings in boiler room
A Two (2) permanent air supply openings in the outer walls of the boiler room
are recommended Locate (1) at each end of the boiler room preferablybelow a height of 7 feet This allows air to sweep the length of the boiler
B Air supply openings can be louvered for weather protection but they shouldnot be covered with fine mesh wire as this type of covering has poor air flowqualities and is subject to clogging by dust or dirt
C A vent fan in the boiler room is not recommended as it could create a slightvacuum under certain conditions and cause variations in the quantity ofcombustion air This can result in unsatisfactory burner performance
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Model CBLE 125-800 HP Boilers
34
D Under no condition should the total area of the air supply openings be lessthan (1) square foot
E Size the openings by using the formulaArea (sq-ft) = CFMFPM
2 Amount of air required (cfm)
A Combustion Air = Rated bhp x 8 cfmbhp
B Ventilation Air = Maximum bhp x 2 cfmbhp
C Total recommended air = 10 cfmbhp - up to 1000 feet elevation Add 3percent more per 1000 feet of added elevation
3 Acceptable air velocity in Boiler Room (fpm)
A From floor to (7) foot height - 250 fpm
B Above (7) foot height - 500 fpm
Example Determine the area of the boiler room air supply openings for (1) 300 hpboiler at 800 feet altitude The air openings are to be 5 feet above floor level
bull Air required 300 x 10 = 3000 cfm (from 2B above)
bull Air velocity Up to 7 feet = 250 fpm (from 3 above)
bull Area Required Area = cfm = 3000250 = 12 sq-ft total
bull AreaOpening 122 = 6 sq-ftopening (2 required)
Notice
Consult local codes which may supersede these requirements
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Model CBLE 125-800 HP Boilers
35
This figure illustrates the basic gas valve arrangement on Cleaver-BrooksModel CB boiler and shows the contractors connection point The valves andcontrols between the contractor connection point and the gas main in thestreet are representative of a typical installation Actual requirements mayvary depending on local codes or local gas company requirements which
should be investigated prior to preparation of specifications and prior to con-struction
A Utilities service valveB Utilities service regulatorC Gas meterD Piping from meter to boiler
The size of the gas line from the meter to the gas pressure regulator at theboiler can be very important if gas pressures are marginal The gas line sizingis dependent on
1 Gas pressure at outlet of gas meter (C)2 Rate of gas flow required CFH3 Length of pipe run (D)4 Pressure required at contractor connection point
The local gas utility will advise the pressure that is available at the outlet oftheir meter
Figure A1-14 Typical Gas Piping Layout
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Model CBLE 125-800 HP Boilers
36
5
6
S
1
3
42
PILOT GAS LINE
S
S
MAIN GAS LINE
M M
ToBurner
GasSupply
11
10
97
12138
14 15
FLOW
FLOW
Figure A1-15 Model CB-LE Gas Train Components
BOILER
HP
MODEL CB
SUPPLYANDRE-
TURNCONN SIZES
(IN)(NPT)
A(IN)
RECOMMENDED OIL LINEA
SIZES(STANDARD PIPE)
(IN - IPS)
STOR-AGE
TANK TOBOILER
OR PUMPCONNECT
PUMPTO
BOILER
RE-TURN
LINE TOTANK
125150 200
34 12-12 1 1 1
250300350
34 34 1 1 1
400500600
34 11-34 1 1 1
700800
1 11-34 1 1 1
NOTE See No 2 Oil Line Sizing Instruction for systems with other conditions A For suction line condition with a maximum of 10 Feet of lift and a
total of 100 feet of suction line
Figure A1-16 No2 Oil Connection Size Location and Recommended Line Sizes
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Model CBLE 125-800 HP Boilers
37
Figure A1-17 No 2 Oil Piping Single Boiler
Installation Remote Oil Pump
Figure A1-18 No 2 Oil Piping Multiple Boiler
Installation Remote Oil Pumps
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Model CBLE 125-800 HP Boilers
38
Figure A1-19 No 2 Oil Piping Multiple Boiler
Installation
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Model CBLE 125-800 HP Boilers
39
Figure A1-20 No 2 Oil Piping Typical Arrangement
Table A1-24 Model CB-LE Blowdown
Tank Sizing
BOILER HP WATER (GAL)
125 97
150 118
200 145
250 146
300 176
350 210
400 177
500 209
600 250
700 800 296
NOTE Quantity of water removed from boiler by lowering normal water line 4
BOILER
HP
HEATING SURFACE (SQ-FT)
FIRESIDE WATERSIDE
125 625 679
150 750 820
200 1000 1092
250 1250 1346
300 1500 1623
350 1750 1932
400 2000 2151
500 2500 2691
600 3000 3262
700 800 3500 3810
Table A1-25 Heating Surface Model CB-LE
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Model CBLE 125-800 HP Boilers
40
BOILER HPSTEAM VOLUME CU-FT
STEAM DISENGAGING AREASQ-IN
HIGH PRESSUREA LOW PRESSUREB HIGH PRESSUREA LOW PRESSUREB
125 254 366 5371 5887
150 307 443 6511 7138
200 377 544 7985 8752
250 492 706 7980 8695
300 595 853 9651 10516
350 709 1017 11507 12538
400 721 979 9793 10593
500 837 1137 11376 12303
600 1015 1378 13787 14911
700-800 1198 1627 16273 17600
NOTE Based on normal water levelA Based on 150 psig design pressureB Based on 15 psig design pressure
Table A1-26 Steam Volume and Disengaging Area
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Model CBLE 125-800 HP Boilers
41
BOILERHP
BOILERCAPACITY(LBSHR)
OPERATING PRESSURES (PSIG)
50 75 100 125 150 175 200 250
100 3450
2-12 2-12 NA NA NA NA NA NA
125 4313 3 2-12 2-12 2-12 NA NA NA NA
150 5175 3 3 2-12 2-12 2-12 2-12 NA NA
200 6900 3 3 3 3 3 2-12 2-12 2-12
250 8625 4 3 3 3 3 3 3 3
300 10350 4 4 4 3 3 3 3 3
350 12025 4 4 4 4 4 3 3 3
400 13800 5 4 4 4 4 4 4 3
500 17210 6 5 5 4 4 4 4 4
600 20700 6 6 5 5 5 4 4 4
700 24150 6 6 6 5 5 5 5 4
800 27600 6 6 6 6 6 5 5 5
NOTE Valve sizes (300 Flanges) given in inchesStandard Non-Return valve selections limited to a maximum 2 to 1 turndown(50 of full load) selections based on typical non-return valve sizing recommen-dations For final valve selection contact your C-B authorized representative Forhigh turndown applications see Boiler Book Section I3 Table I3-3 Indicates pressure drop of less than 75 psig All other selections are less than6 psig pressure drop
Boiler HP
OPERATINGPRESSURE
PSIG125 150 200 250 300 350 400 500 600 700 800
15 8 8 10 10 12 12 12 12 12 12 12
30 6 6 8 8 8 10 10 10 12 12 12
40 6 6 6 8 8 8 10 10 10 12 12
50 6 6 6 6 8 8 8 10 10 10 12
75 4 4 6 6 6 8 8 8 8 10 10
100 4 4 6 6 6 6 6 8 8 8 10
125 4 4 4 6 6 6 6 8 8 8 8
150 3 3 4 4 6 6 6 6 6 8 8
200 25 3 4 4 4 4 6 6 6 6 6
250 25 3 3 4 4 4 4 6 6 6 6
NOTES1 Steam nozzle sizes given in inches2 Recommended steam nozzle sizes based on 4000 to 5000 fpm steam velocity3 All standard steam nozzle sizes for 150 psig design pressure or greater are the sameas 125 psig operating pressure on the above table To increase or decrease the standardsize request the change with your local Cleaver-Brooks authorized representative4 Shaded area denotes special surge load baffles must be installed to avoid possible wa-ter carry-over5 For incremental operating pressures see Table I3-1 Steam Systems Fundamentals
Table A1-28 Recommended Steam Nozzle Size (for
4000 to 5000 fpm nozzle velocity)
Table A1-29 Recommended Non-Return Valve Size
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Model CBLE 125-800 HP Boilers
42
1 Shortest boiler room length (Dwg A) is obtained by allowing for possible future tube replacement (from front or rearof boiler) through a window or doorway Allowance is only made for minimum door swing at each end of the boilerThis arrangement provides sufficient aisle space at the front of the boiler but a ldquotightrdquo space condition at the rear
If space permits approximately 15 additional feet should be allowed at the rear for additional aisle and workingspace
2 Next shortest boiler room length (Dwg B) is obtained by allowing for possible future tube replacement from thefront of the boiler Allowance is only made for minimum door swing at the rear
If space permits approximately 15 additional feet should be allowed at the rear for additional aisle and workingspace
3 A slightly longer boiler room (Dwg C) is obtained by allowing for possible future tube replacement from the rear ofthe boiler Allowance for door swing at the front provides sufficient aisle and working space at the front
Figure A1-21 Boiler Room Length (Typical Layouts)
BOILER HP 125-200 250-350 400-800
Dimension A 82 93 102
Dimension B 115 141 171
NOTES1 Recommended Minimum Distance Between Boiler and Wall Dimen-
sion ldquoArdquo allows for a ldquoclearrdquo 42 aisle between the water col-umn on the boiler and the wall If space permits this aisle
should be widened 2 Recommended Minimum Distance Between BoilersDimension ldquoBrdquo between boilers allows for a ldquoclearrdquo aisle of42 - 125 -200 hp48 - 250-350 hp60 - 400-800 hpIf space permits this aisle should be widened
Figure A1-22 Boiler Room Width (Typical Layout)
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Model CBLE 125-800 HP Boilers
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Model CBLE 125-800 HP Boilers
17
WIDTHS
Overall I 113 113 113 113 115
ID Boiler J 96 96 96 96 96
Center to Entrance Box K 62 62 62 62 64
Center to Outside Hinge KK 62 62 62 62 62
Center to Lagging L 51 51 51 51 51
Base Outside M 72 72 72 72 72
Base Inside N 56 56 56 56 56
HEIGHTS
Overall OO 134 134 134 134 134
Base to Vent Outlet O 126 126 126 126 126
Height of Base Q 12 12 12 12 12
Base to Bottom of Boiler R 19 19 19 19 19
Base to Return and Outlet X 121-916 121-916 121-916 121-916 121-916
BOILER CONNECTIONS
Auxiliary Connection Z 1-14 1-14 1-14 1-14 1-14
Drain Front and Rear W 2 2 2 2 2
Water Return T 10A 10A 12A 12A 12A
Water Outlet (2rdquo Dip Tube Included) U 10A 10A 12A 12A 12A
Air Vent Y 2 2 2 2 2
VENT STACK
Diameter (Flanged Connection) BB 24 24 24 24 24
MINIMUM CLEARANCES
Rear Door Swing DD 53 53 53 53 53
Front Door Swing EE 108 108 108 108 108
Tube Removal Rear FF 131 152 184 217 217
Tube Removal Front GG 114 135 167 200 200
MINIMUM BOILER ROOM LENGTH ALLOWING FOR DOOR SWING AND TUBE REMOVAL FROM
Rear of Boiler RR 386 428 492 558 558
Front of Boiler RF 314 356 420 486 486
Thru Window or Doorway RD 308 329 361 394 394
WEIGHT IN LBS
Normal Water Capacity 20015 23300 28260 33360 33360
Approx Ship Wgt ndash 30 psig
Approx Ship Wgt ndash 125 psig
33300
37270
36900
40780
42150
46005
49650
53300
49750
53400
NOTES All connections are threaded unless indicated
A ANSI 150 psig flange
BOILER HP DIM 400 500 600 700 800
Table A1-8 Model CB-LE Hot Water Boiler Dimensions
96rdquo (30 and 125 psig Design Pressure) - Sheet 2 of 2
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Model CBLE 125-800 HP Boilers
18
BOILER HP
MOTOR HP
60PPM
30PPM
25PPM
20PPM
125 5 10 5 10
150 75 10 10 10
200 15 15 20 NA
250 75 10 15 15
300 10 15 20 30
350 15 25 40 40
400 10 15 20 20
500 15 20 25 30
600 25 30 50 60
700 30 50 75 75
800 50 75 NA NA
NOTES For elevations above 700rsquo - contact your local
Cleaver-Brooks authorized representative
Table A1-9 Model CB-LE Blower Motor Selection -
Operating Pressures 150 psig and Less and All Hot
Water Boilers
BOILER HP
MOTOR HP
60
PPM
30
PPM
25
PPM
20
PPM
125 5 10 10 10
150 10 10 10 15
200 15 20 20 NA
250 75 10 15 20
300 10 20 30 40
350 20 30 40 50
400 10 15 20 25
500 20 25 30 40
600 25 40 60 60
700 40 60 75B 75C
800 60 75A NA NA
NOTES For elevation above 700rsquo - contact your local
Cleaver-Brooks authorized representative
A Downrate to 770 hp
B Downrate to 675 hp
C Downrate to 660 hp
Table A1-10 Model CB-LE Blower Motor Selection -
Operating Pressures Greater than 150 psig (Steam
Boilers)
09-09
Table A1-11 Blower Motor Selection CB-LE NTI BoilersTable A1-12 Turndown Guarantee for CB-LE NTI
Boilers - Natural Gas amp 2 Oil
Boiler SizeTurndown
9 ppm 15 ppm
125 41 41
150 41 51
200 41 51
250 51 51
300 51 51
350 51 51
400 51 61
500 51 61
600 61 61
700 71 71
800 71 71
800 HP to be derated to 720 HP for 9 ppm and 750 HP
for 15 ppm
Altitude 700 ft and less - Design Pressure 150 psi and less
800 HP - to be de-rated to 720 HP for 9 ppm and to 750 HP for 15 ppm
mpp9mpp51Nominal
Boiler Size Blower Motor HP Blower Motor HP
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Model CBLE 125-800 HP Boilers
19
BOILER HPFUEL
SERIES
HOT WATER STEAM
30 PSIG 125 PSIG 15 PSIG 150 PSIG 200 PSIG
125100 11200 11600 11300 12000 12600200 11400 11800 11500 12400 13000
700 11300 11700 11400 12300 12900
150
100 12300 12700 12400 13200 13900
200 12500 12900 12600 13500 14200
700 12300 12700 12400 13300 14000
200
100 14400 14800 14500 15500 16300
200 14500 14900 14600 15600 16400
700 14500 14900 14600 15600 16400
250
100 20700 21500 20800 22000 23800
200 21400 22200 21500 22800 24600
700 20900 21700 21000 22500 24300
300
100 23100 23900 23200 24800 26800
200 23500 24300 23600 25200 27200
700 23400 24200 23500 25000 27000
350
100 26200 27000 26300 27600 29100
200 26700 27500 26800 27800 29300
700 26400 27200 26500 27700 29200
400
100 33000 36970 33200 36270 39380
200 33300 37270 33500 36570 39680
700 33200 37170 33400 36470 39580
500
100 36600 40470 36810 39670 43480
200 36900 40780 37110 39970 43580
700 36800 40680 37010 39870 43280
600
100 41850 45905 42000 44725 49100
200 42150 46005 42300 45025 49400
700 42050 45915 42200 44925 49300
700800
100 49450 53000 49300 51850 57015
200 49750 53300 49600 52150 57315
700 49650 53200 49500 52050 57215
NOTES1 Weights shown are based on standard product offering for current listed boilers If units are of special design and construction actual weightwill be determined at time of shipment Shipment will then be made on shippers weight and count All weights are in US pounds
Table A1-13 Model CB-LE Boiler Weights
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Model CBLE 125-800 HP Boilers
20
VALVE
SETTING15 PSIG STEAM 100 PSIG STEAM 125 PSIG STEAM 150 PSIG STEAM 200 PSIG STEAM 250 PSIG STEAM 300 PSIG STEAM
BOILERHP
NO OF
VALVES-REQD
OUTLET
SIZE(IN)
NO OF
VALVES-REQD
OUTLET
SIZE(IN)
NO OF
VALVESREQD
OUTLET
SIZE(IN)
NO OF
VALVES-REQD
OUTLET
SIZE(IN)
NO OF
VALVES-REQD
OUTLET
SIZE(IN)
NO OF
VALVESREQD
OUTLET
SIZE(IN)
NO OF
VALVESREQD
OUTLET
SIZE(IN)
125 1 3 2 1-12 2(1) 1-12(1) 1-14
2(1) 1-12(1) 1-14
2(1) 1-14(1) 1
2 1 2 1
150 1 3 2(1) 2(1) 1-12
2 1-14 2(1) 1-12(1) 1-14
2(1) 1(1) 1-14
2 1 2 1
200 2 2-12 2 2 2 1-12 2 1-12 2(1) 1-12(1) 1-14
2 1-14 2(1) 1(1) 1-14
250 2(1) 2-12(1) 3
2(1) 2-12(1) 2
2(1)2(1)1-12
2(1) 2(1) 1-12
2(1)1-12(1)1-14
2(1) 1-12(1) 1-14
2 1-14
300 2 3 2(1) 2-12(1) 2
2 2 2(1) 2(1) 1-12
2 1-12 2(1)1-12(1)1-14
2(1) 1-12(1) 1-14
350 3(1) 2(2) 3
3(1) 2-12(2) 2
2(1)2(1)1-12
2 2 2(1) 1-12(1) 2
2 1-12 2(1) 1-12(1) 1-14
400 3(2) 3(1) 2-12
3(1) 2(2) 2-12
2(1)2(1)2-12
2(1) 2-12(1) 2
2(1) 1-12(1) 2
2(1) 2(1) 1-12
2 1-12
500 3 (3) 3 3 2-12 2 2-12 2(1) 2-12(1) 2
2(1) 2(1) 2-12
2(1) 2(1)1-12
2(1) 1-12(1) 2
600 4 3 4(3) 2-12(1) 2
3 2-12 2 2-12 2(1) 2(1) 2-12
2 2 2 2
700 5(3) 3(2) 2-12
5(3) 2-12(2) 2
3 2-12 3(2) 2-12(1) 2
2 2-12 2(1) 2(1) 2-12
2 2
800 5(3) 3(2) 2-12
5(3) 2-12(2) 2
4(3) 2-12(1) 2
3(2) 2-12(1) 2
2 2-12 2(1) 2(1) 2-12
2(1) 2(1) 2-12
NOTES Valve manufacturers are Kunkle Consolidated or Conbraco depending on availability This table revised 042012
Table A1-14 Steam Boiler Safety Valve Openings
VALVE
SETTING 30 PSIG HW 60 PSIG HW 100 PSIG HW 125 PSIG HW
BOILER HPNO OF
VALVESREQD
OUTLETSIZE(IN)
NO OFVALVESREQD
OUTLETSIZE(IN)
NO OFVALVESREQD
OUTLETSIZE(IN)
NO OFVALVESREQD
OUTLETSIZE(IN)
125 1 2-12 1 2 1 2 1 1-14
150 1 2-12 1 2-12 1 2 1 2
200 2(1) 2-12(1) 1-14
1 2-12 1 2 1 2
250 2 (1) 2(1) 2-12
1 2-12 1 2-12 1 2
300 2 2-12 2(1) 1(1) 2-12
1 2-12 1 2-12
350 3(2) 2-12(1) 1
2(1) 2-12(1) 2
1 2-12 1 2-12
400 3 (1) 2(2) 2-12 2 (1) 2(2) 2-12 2 (1) 1(1) 2-12 1 2-12
500 4 (1) 1(3) 2-12
2 2-12 2(1) 2-12(1) 1-14
2(1) 1(1) 2-12
600 4(3) 2-12(1) 2
3(1) 1-1(2) 2-12
2(1) 2(1) 2-12
2(1) 2-12(1) 1-14
700 amp 800 5 (1) 1(4) 2-12
3(1) 2(2) 2-12
2 2-12 2(1) 2-12(1) 2
NOTES Hot water relief valves are Kunkle 537
Table A1-15 Hot Water Boiler Relief Valve Openings
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Model CBLE 125-800 HP Boilers
21
BOILER HP A B C D E F G X1 X2 X3
125 6 9 112 39-12 57-12 4 44-12 10 9-34 22-12
150 6 9 136 39-12 57-12 4 44-12 10 9-34 22-12
200 6 9 167 39-12 57-12 4 44-12 10 9-34 22-12
250 6 12 131 46 70 4 56 10 22 22-12
300 6 12 158 46 70 4 56 10 22 22-12
350 6 12 188 46 70 4 56 10 22 22-12
NOTE
All numbers in table are in inches
6-inch high mounting piers recommended for use beneath the boiler base frame The use of these piers provides increased inspection
accessibility to the piping beneath the boiler and added height for washing down the area beneath the boiler
Figure A1-7 Space Required to Open Rear Head on Model CB-LE Boilers Equipped with Davits
BOILER HPDIMENSIONS (INCHES)
A B C D E
CB-125 THRU CB-200 33 55 45 68 32
CB-250 THRU CB-350 42 69 58 86 43
CB-400 THRU CB-800 51 88 71 109 53
Figure A1-8 Model CB-LE Boiler Mounting Piers (60rdquo and 78rdquo)
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Model CBLE 125-800 HP Boilers
22
BOILER HP A B C D E F G
400 6 14 134 50 78 6-12 58-78
500 6 14 155 50 78 6-12 58-78
600 6 14 187 50 78 6-12 58-78
700-800 6 14 220 50 78 6-12 58-78
NOTE1 All numbers in table are in inches2 6-inch high mounting piers recommended for use beneath the boiler base frame The use of these piers provides in-
creased inspection accessibility to the piping beneath the boiler and added height for washing down the area beneaththe boiler
Figure A1-9 Model CB-LE Boiler Mounting Piers (96rdquo)
CBLE 250-350HP
CBLE 400-800HP
Motor HP Hole Number
75 1
15 1
25 2
40 3
Motor HP Hole Number
10 1
20 1
30 250 2
75 3
Figure A1-10 Front Davit Support
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Model CBLE 125-800 HP Boilers
23
BOILERHP
VIEW
ALL DIMENSIONS IN INCHES
A B C D E
125 All B 80-14 29-34 70-12 10 3
150 All B 80-14 29-34 83-12 10 3
200 All B 80-14 29-34 114-12 10 3
250Steam B 99 36 72 10 3
Hot Water B 99 36 81 10 3
300
Steam B 99 36 99 10 3
Hot Water B 99 36 108 10 3
350Steam B 99 36 129 10 3
Hot Water B 99 36 138 10 3
400Steam B 119 35-34 78 11 3
Hot Water B 119 35-34 78 11 3
500Steam B 119 35-34 99 11 3
Hot Water B 119 35-34 99 11 3
600Steam B 119 35-34 131 11 3
Hot Water B 119 35-34 131 11 3
700 amp 800Steam B 119 35-34 164 11 3
Hot Water B 119 35-34 164 11 3
NOTE A B and C dimensions may vary by 12 inch
Figure A1-11 Lifting Lug Location Model CB-LE Boilers
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Model CBLE 125-800 HP Boilers
24
PERFORMANCE DATA
The Low Emission Option provides NOx reduction at current published andpredicted fuel-to-steam efficiencies
Specifying BoilerEfficiency
Cleaver-Brooks offers an industry leading fuel-to-steam boiler efficiency guaranteefor Model CB-LE Firetube Boilers The guarantee is based on the fuel-to-steam
efficiencies shown in the efficiency tables and the following conditions Theefficiency percent number is only meaningful if the specific conditions of theefficiency calculations are clearly stated in the specification (see Cleaver-Brookspublication CB-7768 for a detailed description of efficiency calculations)
When specifying the efficiencies in the tables be sure to include the specificguarantee conditions to maximize the effectiveness of your efficiency specification Ifyou have any questions regarding the efficiency specifications please contact yourlocal Cleaver-Brooks authorized representative
EfficiencySpecification
The boiler manufacturer shall guarantee that at the time of startup the boiler willachieve fuel-to-steam efficiency (as shown in Table A1-16 and Table A1-17) at100 firing rate (add efficiency guarantees at 25 50 and 75 of rating if
required) If the boiler(s) fail to achieve the corresponding guaranteed efficiency aspublished the boiler manufacturer will rebate to the ultimate boiler owner tenthousand dollars ($10000) for every full efficiency point (10) that the actualefficiency is below the guaranteed level
The specified boiler efficiency is based on the following conditions
1 Fuel specification used to determine boiler efficiency
bull Natural Gas
Carbon (wt) = 6998Hydrogen (wt) = 2231Sulfur (wt) = 00
Heating value Btulb = 21830bull No 2 Oil
Carbon (wt) = 858Hydrogen (wt) = 127Sulfur (wt) = 02Heating value Btulb = 19420
No 6 Oil
Carbon (wt) = 866Hydrogen (wt) = 109Sulfur (wt) = 209Heating value Btulb = 18830
2 Efficiencies are based on ambient air temperature of 80 degF relative humidity of30 and 15 excess air in the exhaust flue gas
3 Efficiencies are based on manufacturerrsquos published radiation and convectionlosses (For Cleaver-Brooks radiation and convection losses see BoilerEfficiency Facts Guide publication number CB-7767)
4 Any efficiency verification testing will be based on the stack loss method
For efficiencies and stack temperatures at operating pressures not listed followthese procedures
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Model CBLE 125-800 HP Boilers
25
When the operating steam pressure is between 10 psig and 125 psig interpolatethe values from the efficiency tables
When the operating steam pressure is above 125 psig estimated efficiency can becalculated as follows
Example
Boiler 350 hpFuel natural gas
Operating steam pressure 200 psig
Find the fuel-to-steam efficiency at 100 firing rate From Table A1-16 for a 350hp boiler operating at 100 firing rate and an operating steam pressure of 125psig the efficiency is 825
Using Figure A1-12 note that the stack temperature increases 36 degF at the higheroperating pressure To estimate boiler efficiency use this rule of thumb For every40 degF increase in stack temperature efficiency decreases by 1 Since the stacktemperature rise is 36 degF the decrease in the boiler efficiency at 200 psig operatingpressure is calculated as follows 3640 =9 Therefore the boiler efficiency at200 psig operating pressure is 825 -9 = 816
Emissions The emission data included in this section consists of typical emission levels forModel CB boilers equipped with 60 30 25 and 20 ppm LE Options when firingnatural gas and No 2 oil
Notice
The data in Table A1-18 and Table A1-19 represent typical emission levels only
Guaranteed emission levels are available from your local Cleaver-Brooks authorized
representative
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Model CBLE 125-800 HP Boilers
26
BOILER
HP
OPERATING PRESSURE = 10 psig OPERATING PRESSURE = 125 psig
OF LOAD OF LOAD
25 50 75 100 25 50 75 100
125 833 836 834 832 804 809 810 810
150 844 846 845 843 815 820 820 821
200 850 853 851 849 822 827 827 827
250 850 847 840 833 820 820 816 813
300 853 853 846 839 826 827 822 819
350 853 857 852 845 826 832 828 825
400 845 847 846 844 818 822 824 822
500 855 857 855 852 828 832 833 831
600 857 860 858 856 829 835 836 835
700 857 862 860 857 830 836 836 836
800 858 861 859 856 831 836 837 835
Table A1-16 Predicted Fuel-to-Steam Efficiencies - Natural Gas
Figure A1-12 Predicted Stack Temperature Increase for Pressure Greater Than 125 psig
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Model CBLE 125-800 HP Boilers
27
Table A1-18 CB-LE Boilers - Natural Gas Emission Levels
POLLUTANT
ESTIMATED LEVEL
60 ppm 30 ppm 25 ppm 20 ppm 15 ppm 9 ppm
CO ppmA
lbMMBtu
50150B
004011
50150B
004011
50150B
004011
50150B
004011
50
004
50
004
NOx ppmA
lbMMBtu
60
007
30
0035
25
003
20
0024
15
0018
9
0011
SOx ppmA
lbMMBtu
1
0001
1
0001
1
0001
1
0001
1
0001
1
0001
HCVOC5 ppmA
lbMMBtu
10
0004
10
0004
10
0004
10
0004
10
0004
10
0004
PM ppmA
lbMMBtu
-
001
-
001
-
001
-
001
-
001
-
001
A ppm levels are given on a dry volume basis and corrected to 3 oxygen (15 excess air)
B CO emission for 60 30 25 amp 20 ppm system is 50 ppm (004 lbMMBtu) when boiler is operating above 50 of rated capacity
CO emission is 150 ppm (011 lbMMBtu) when boiler is operating below 50 of rated capacity
Table A1-17 Predicted Fuel-to-Steam Efficiencies - No 2 Oil
BOILER
HP
OPERATING PRESSURE = 10 psig OPERATING PRESSURE = 125 psig
OF LOAD OF LOAD
25 50 75 100 25 50 75 100
125 867 869 867 866 837 842 843 843
150 878 880 878 876 848 853 853 854
200 884 887 884 882 856 860 860 860
250 883 881 874 867 853 853 849 847
300 886 887 880 873 859 860 855 852
350 886 890 885 878 859 866 861 858
400 879 881 879 876 851 855 856 855
500 889 890 889 886 861 865 866 864
600 890 894 892 890 862 868 869 868
700 891 895 893 891 863 869 870 869
800 892 895 893 890 864 869 870 868
Table A1-19 CB-LE Boilers - No 2 Oil Emission Levels
POLLUTANTESTIMATED LEVEL
60 ppm LE Option 30 25 20 ppm LE Option 15 ppm 9 ppm
CO ppmA
lbMMBtu
50
0039
50
0039
50
0039
50
0039
NOx ppmA
lbMMBtu140
018690
012085
011370
0093
SOx ppmA
lbMMBtu
278
052
278
052
278
052
278
052
HCVOCs ppmA
lbMMBtu
4
0002
4
0002
4
0002
4
0002
PM ppmA
lbMMBtu
-
0025
-
0025
-
0025
-
0025
A ppm levels are given on a dry volume basis and corrected to 3 oxygen (15 excess air)
BASED ON THE FOLLOWING CONSTITUENT LEVELS
Fuel-bound Nitrogen content = 0015 by weight
Sulfur content = 05 by weight
Ash content = 001 by weight
09-09
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Model CBLE 125-800 HP Boilers
28
ENGINEERING DATA
Sound Level Table A1-20 gives a summary of predicted sound pressure levels for Model CBboilers with 30 ppm LE Options Contact your local Cleaver-Brooks authorizedrepresentative for sound levels or other LE Options
Units - The units for the sound level tables are dbA (decibels measured on the A-weighted scale) in reference to 00002 microbars (20 micro-Newtons per square
meter) Their reference are standardly used in specifying and reporting soundpressure levels on industrial equipment
Test Method - The sound pressure levels in the above tables were obtained fromtests in accordance with the ldquoABMA Test Code for the Measurement of Sound fromPackaged Boilersrdquo In accordance with this code the sound pressure levels reportedwere measured on the boiler centerline 4-12 feet vertically above the bottom of thebase rails and 3 feet horizontally in front of the end of the blower motor or frontsurface of the electrical cabinet
Sound Level Meter - The sound level meter used complies with ANSI S14 Type 1(Precision) The readings are taken with the meter set for slow response andcorrected for background levels
Sound Pressure - The large size boilers the need for auxiliary equipment and thenecessary interconnecting piping make it impractical (and sometimes impossible) toprovide a boiler testing environment which is suitable for taking the data needed todevelop Sound Pressure Power levels
Typical Values - Sound pressure levels (dbA) for the same boiler will vary betweenboiler rooms Sound levels will vary with motor type NOx levels and altitudes Inaddition variations will occur between different people using different sound meterson the same boiler And finally no two boilers can be expected to give precisely thesame sound levels For these reasons we can only predict but not guarantee soundlevels (dbA)
BOILER HP 125 150 200 250 300 350 400 500 600 700 800
HFO dbA 84 84 84 83 84 85 84 85 85 88 90
LFO dbA 82 82 83 81 82 83 82 83 83 84 89
HFG dbA 82 82 83 82 83 84 83 83 85 87 90
LFG dbA 81 81 82 81 82 83 81 81 82 84 88
NOTES1 Sound pressure levels measured on boilers operating in various locations and ex-
pressed in dbA are as shown2 Based on standard altitude fans and fan motors 60 Hz3 Contact your local Cleaver-Brooks authorized representative for sound levels of 60 25or 20 ppm LE Options
ABBREVIATIONS
HF = High Fire LF = Low Fire O = Oil G = Gas
Table A1-20 Model CBLE Predicted Sound Levels 30 ppm NOx Systemss
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Model CBLE 125-800 HP Boilers
29
Gas-Fired Burners Table A1-21 shows gas pressure with standard over- and undersized gas trains
Table A1-22 shows minimum required gas pressure altitude conversion
Figure A1-13 shows standard gas train sizes and locations for Model CB FiretubeBoilers
Figure A1-14 shows typical gas train piping layouts for multiple boiler applications
Figure A1-15 shows standard gas train components
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Model CBLE 125-800 HP Boilers
30
Table A1-21 Standard Undersize and Oversize Gas Trains
CBLE
BOILER HP GAS TRAINSIZE
UPSTREAMVALVE
DOWNSTREAMVALVE
EMISSIONS LEVEL 09 ppm 15 ppm 20 ppm 30 ppm 60 ppm UC
125 HP 15 in BB BB 33 - 49 psi 33 - 49 psi 08 - 50 psi 07 - 50 psi 07 - 50 psi 07 - 50 ps
125 HP 15 in PC PC 34 - 50 psi 34 - 50 psi 09 - 50 psi 08 - 50 psi 08 - 50 psi 08 - 50 ps
125 HP 20 in BB BB 31 - 33 psi 31 - 33 psi 06 - 08 psi 06 - 07 psi 05 - 07 psi 05 - 07 ps
125 HP 20 in PC PC 31 - 34 psi 31 - 34 psi 06 - 09 psi 06 - 08 psi 06 - 08 psi 05 - 08 ps
125 HP 25 in PC PC 30 - 31 psi 30 - 31 psi 04 - 06 psi 04 - 06 psi 04 - 05 psi 04 - 05 ps
125 HP 30 in PC PC 29 - 30 psi 29 - 30 psi 04 - 04 psi 04 - 04 psi 04 - 04 psi 03 - 04 ps
125 HP 40 in PC PC 29 - 29 psi 29 - 29 psi 04 - 04 psi 03 - 04 psi 03 - 04 psi 03 - 03 ps
150 HP 15 in BB BB 37 - 55 psi 39 - 58 psi 10 - 47 psi 09 - 50 psi 09 - 50 psi 09 - 50 ps
150 HP 15 in PC PC 38 - 57 psi 40 - 60 psi 11 - 42 psi 11 - 50 psi 10 - 50 psi 10 - 50 ps
150 HP 20 in BB BB 34 - 37 psi 36 - 39 psi 07 - 10 psi 06 - 09 psi 06 - 09 psi 06 - 09 ps
150 HP 20 in PC PC 34 - 38 psi 36 - 40 psi 07 - 11 psi 07 - 11 psi 07 - 10 psi 06 - 10 ps
150 HP 25 in PC PC 32 - 34 psi 34 - 36 psi 05 - 07 psi 04 - 06 psi 04 - 06 psi 04 - 06 ps
150 HP 30 in PC PC 32 - 32 psi 34 - 34 psi 04 - 05 psi 04 - 04 psi 04 - 04 psi 03 - 04 ps
150 HP 40 in PC PC 31 - 32 psi 33 - 34 psi 04 - 04 psi 03 - 04 psi 03 - 04 psi 03 - 03 ps
200 HP 15 in BB BB 46 - 69 psi 50 - 75 psi 16 - 50 psi 15 - 50 psi 15 - 50 ps
200 HP 15 in PC PC 48 - 72 psi 52 - 78 psi 18 - 50 psi 17 - 50 psi 17 - 50 ps
200 HP 20 in BB BB 41 - 46 psi 45 - 50 psi 10 - 16 psi 10 - 15 psi 10 - 15 ps
200 HP 20 in PC PC 41 - 48 psi 45 - 52 psi 11 - 18 psi 11 - 17 psi 10 - 17 ps
200 HP 25 in PC PC 38 - 41 psi 42 - 45 psi 07 - 10 psi 07 - 10 psi 06 - 10 ps
200 HP 30 in PC PC 36 - 38 psi 40 - 42 psi 06 - 07 psi 05 - 07 psi 05 - 06 ps
200 HP 40 in PC PC 36 - 36 psi 40 - 40 psi 05 - 06 psi 05 - 05 psi 04 - 05 ps
250 HP 15 in BB BB 41 - 62 psi 44 - 67 psi 24 - 50 psi 24 - 27 psi 24 - 26 psi 23 - 26 ps
250 HP 15 in PC PC 45 - 67 psi 48 - 72 psi 28 - 50 psi 27 - 28 psi 27 - 27 psi 27 - 27 ps
250 HP 20 in BB BB 33 - 38 psi 37 - 41 psi 16 - 24 psi 16 - 24 psi 16 - 24 psi 15 - 23 ps
250 HP 20 in PC PC 34 - 40 psi 37 - 43 psi 17 - 28 psi 17 - 27 psi 16 - 27 psi 16 - 27 ps
250 HP 25 in PC PC 29 - 33 psi 32 - 37 psi 11 - 16 psi 11 - 16 psi 11 - 16 psi 10 - 15 ps
250 HP 30 in PC PC 27 - 29 psi 31 - 32 psi 09 - 11 psi 09 - 11 psi 09 - 11 psi 09 - 10 ps
250 HP 40 in PC PC 26 - 27 psi 29 - 31 psi 08 - 09 psi 08 - 09 psi 08 - 09 psi 08 - 09 ps
300 HP 15 in - 20 in BB BB 55 - 83 psi 57 - 85 psi 30 - 50 psi 30 - 36 psi 30 - 35 psi 30 - 35 ps
300 HP 15 in - 20 in PC PC 58 - 87 psi 60 - 90 psi 33 - 50 psi 33 - 37 psi 33 - 36 psi 33 - 36 ps
300 HP 20 in BB BB 46 - 55 psi 47 - 57 psi 21 - 30 psi 21 - 30 psi 20 - 30 psi 20 - 30 ps
300 HP 20 in PC PC 47 - 58 psi 48 - 60 psi 22 - 33 psi 22 - 33 psi 21 - 33 psi 21 - 33 ps
300 HP 30 in PC PC 39 - 46 psi 40 - 47 psi 13 - 21 psi 13 - 21 psi 12 - 20 psi 12 - 20 ps
300 HP 40 in PC PC 37 - 39 psi 39 - 40 psi 11 - 13 psi 11 - 13 psi 10 - 12 psi 10 - 12 ps
350 HP 15 in - 20 in BB BB 64 - 90 psi 62 - 90 psi 42 - 50 psi 42 - 50 psi 41 - 50 psi 41 - 50 ps
350 HP 15 in - 20 in PC PC 68 - 90 psi 66 - 90 psi 46 - 50 psi 46 - 50 psi 45 - 50 psi 45 - 50 ps
350 HP 20 in BB BB 54 - 64 psi 53 - 62 psi 32 - 42 psi 32 - 42 psi 32 - 41 psi 31 - 41 ps
350 HP 20 in PC PC 56 - 68 psi 54 - 66 psi 34 - 46 psi 34 - 46 psi 33 - 45 psi 33 - 45 ps
350 HP 25 in PC PC 43 - 54 psi 42 - 53 psi 21 - 32 psi 21 - 32 psi 20 - 32 psi 20 - 31 ps
350 HP 30 in PC PC 40 - 43 psi 38 - 42 psi 17 - 21 psi 17 - 21 psi 17 - 20 psi 16 - 20 ps
350 HP 40 in PC PC 37 - 40 psi 36 - 38 psi 15 - 17 psi 15 - 17 psi 14 - 17 psi 14 - 16 ps
400 HP 15 in - 20 in BB BB 69 - 90 psi 69 - 90 psi 46 - 50 psi 46 - 50 psi 45 - 50 psi 45 - 50 ps
400 HP 15 in - 20 in PC PC 74 - 90 psi 75 - 90 psi 51 - 87 psi 51 - 77 psi 51 - 77 psi 51 - 77 ps
400 HP 20 in BB BB 55 - 69 psi 56 - 69 psi 32 - 46 psi 32 - 46 psi 32 - 45 psi 32 - 45 ps
400 HP 20 in PC PC 57 - 74 psi 58 - 75 psi 34 - 50 psi 34 - 50 psi 34 - 50 psi 34 - 50 ps
400 HP 25 in PC PC 41 - 55 psi 42 - 56 psi 18 - 32 psi 18 - 32 psi 18 - 32 psi 18 - 32 ps
400 HP 30 in PC PC 37 - 41 psi 38 - 42 psi 13 - 18 psi 13 - 18 psi 13 - 18 psi 13 - 18 ps
400 HP 40 in PC PC 34 - 37 psi 35 - 38 psi 11 - 13 psi 10 - 13 psi 10 - 13 psi 10 - 13 ps
500 HP 20 in - 25 in BB PC 58 - 76 psi 58 - 76 psi 46 - 50 psi 46 - 50 psi 45 - 50 psi 45 - 50 ps
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Model CBLE 125-800 HP Boilers
31
BB = Butter Ball PC = Plug Cock
NOTE In cases where the gas train increases in size after the regulating valve two diameters are listed The first number is the customer connection size
500 HP 20 in - 25 in PC PC 60 - 83 psi 60 - 83 psi 48 - 50 psi 47 - 50 psi 47 - 50 psi 47 - 50 psi
500 HP 25 in PC PC 39 - 58 psi 39 - 58 psi 27 - 46 psi 27 - 46 psi 27 - 45 psi 26 - 45 psi
500 HP 30 in PC PC 33 - 39 psi 33 - 39 psi 20 - 27 psi 20 - 27 psi 20 - 27 psi 20 - 26 psi
500 HP 40 in PC PC 28 - 33 psi 28 - 33 psi 16 - 20 psi 16 - 20 psi 15 - 20 psi 15 - 20 psi
600 HP 20 in - 25 in BB PC 80 - 90 psi 80 - 90 psi 65 - 90 psi 65 - 90 psi 64 - 89 psi 63 - 88 psi
600 HP 20 in - 25 in PC PC 82 - 90 psi 82 - 90 psi 67 - 100 psi 67 - 100 psi 66 - 99 psi 66 - 99 psi
600 HP 25 in PC PC 54 - 80 psi 54 - 80 psi 39 - 50 psi 38 - 50 psi 38 - 50 psi 37 - 50 psi
600 HP 25 in - 30 in PC PC 52 - 54 psi 52 - 54 psi 37 - 39 psi 36 - 38 psi 35 - 38 psi 35 - 37 psi
600 HP 30 in PC PC 43 - 52 psi 43 - 52 psi 28 - 37 psi 27 - 36 psi 27 - 35 psi 26 - 35 psi
600 HP 40 in PC PC 37 - 43 psi 37 - 43 psi 22 - 28 psi 21 - 27 psi 20 - 27 psi 20 - 26 psi
700 HP 20 in - 30 in BB PC 110 - 150 psi 107 - 150 psi 87 - 131 psi 86 - 130 psi 86 - 129 psi 86 - 128 psi
700 HP 20 in - 30 in PC PC 113 - 150 psi 110 - 150 psi 90 - 135 psi 89 - 134 psi 89 - 134 psi 89 - 133 psi
700 HP 25 in - 30 in PC PC 71 - 90 psi 68 - 90 psi 48 - 50 psi 47 - 50 psi 47 - 50 psi 46 - 50 psi
700 HP 30 in PC PC 60 - 71 psi 57 - 68 psi 36 - 48 psi 36 - 47 psi 35 - 47 psi 35 - 46 psi
700 HP 40 in PC PC 51 - 60 psi 48 - 57 psi 28 - 36 psi 27 - 36 psi 27 - 35 psi 26 - 35 psi
800 HP 20 in - 30 in BB PC 108 - 150 psi 107 - 150 psi 106 - 150 psi
800 HP 20 in - 30 in PC PC 112 - 150 psi 111 - 150 psi 110 - 150 psi800 HP 25 in - 30 in PC PC 61 - 90 psi 60 - 100 psi 59 - 100 psi
800 HP 30 in PC PC 48 - 61 psi 47 - 50 psi 46 - 50 psi
800 HP 40 in PC PC 35 - 48 psi 34 - 47 psi 34 - 46 psi
Standard Gas Train size is highlighted
Table A1-21 Standard Undersize and Oversize Gas Trains (Continued)
CBLE
BOILER HP GAS TRAINSIZE
UPSTREAMVALVE
DOWNSTREAMVALVE
EMISSIONS LEVEL 09 ppm 15 ppm 20 ppm 30 ppm 60 ppm UC
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Model CBLE 125-800 HP Boilers
32
ALTITUDE(FT)
CORRECTIONFACTOR
ALTITUDE(FT)
CORRECTIONFACTOR
1000 104 6000 1252000 107 7000 130
3000 111 8000 135
4000 116 9000 140
5000 121 - -
To obtain minimum required gas pressure at altitudesabove 700 feet multiply the pressure by the listed factorsInches WC x 0577 = ozsq-inOzsq-in x 1732 = Inches WCInches WC x 00361= psigOzsq-in x 00625 = psigPsig x 2771 = Inches WCPsig x 160 = Ozsq-in
Table A1-22 Minimum Required Regulated Gas Pressure
Altitude Conversion
BOILERHP
TYPE OF GAS AND HEAT CONTENT
NATURAL GAS1000 (Btucu-ft)
PROPANE GAS2550 (Btucu-ft)
125 5103 2000
150 6124 2402
200 8165 3202
250 10206 4002
300 12247 4802
350 14280 5600
400 16329 6404
500 20415 8006
600 24494 9605
700 28576 11206
800 32659 12807
Table A1-23 Maximum Gas Consumption (CFH)
for Natural Gas and Propane Vapor
BOILER
HP
MODEL CB
CONNECTION SIZE
(IN NPT)
LOCATIONDIMENSION
ldquoArdquo (IN)
125-200 1-12 52
250-350 2 56
400 2 58
500 2-12 60
600 2-12 - 3 71
700-800 3 65
Figure A1-13 Standard Gas Train Connection Size and Location
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Model CBLE 125-800 HP Boilers
33
Oil-Fired Burners Fuel oil consumption information is shown on the boiler rating sheets in theDimensions and Rating Section
Figure A1-16 shows the oil connection sizes and locations for Model CB Boilersfiring No 2 oil
Figure A1-17 through Figure A1-18 show typical oil systems and layouts
Figure A1-19 and Figure A1-20 show the detail of an oil transfer tank (day tank)typically utilized to provide a storage reservoir between the oil system supply pumpand the boiler oil pump
General BoilerInformation
Table A1-24 shows blowdown tank sizing information
Table A1-25 provides heating surface information
Table A1-26 provides steam volume and disengaging area information
Table A1-27 provides recommended steam nozzle sizes
Table A1-28 provides recommended non-return valve sizes
Boiler RoomInformation
Figure A1-21 shows typical boiler room length requirements
Figure A1-22 shows typical boiler room width requirements
Figure A1-23 shows typical breeching arrangements
Stack SupportCapabilities
All standard Cleaver-Brooks Firetube Boilers with an LE option can support up to2000 lbs without additional support
LE Boilers 250 hp through 800 hp can be reinforced to support 3000 lbs
StackBreechingSize Criteria
The design of the stack and breeching must provide the required draft at each boilerflue gas outlet Proper draft is critical to burner performance
Although constant pressure at the flue gas outlet of the Model CB-LE is not requiredit is necessary to size the stackbreeching to limit flue gas pressure variation Theallowable pressure range is ndash025 WC to +025 WC
For additional information please review Section I4 General Engineering Data(Stacks) and Section F Stacks Stack and breeching sizes should always be providedby a reputable stack supplier who will design the stack and breeching system basedon the above criteria Your local Cleaver-Brooks authorized representative is capableof assisting in your evaluation of the stackbreeching design
Boiler RoomCombustion Air
When determining boiler room air requirements the size of the room air flow andvelocity of air must be reviewed as follows
1 Size (area) and location of air supply openings in boiler room
A Two (2) permanent air supply openings in the outer walls of the boiler room
are recommended Locate (1) at each end of the boiler room preferablybelow a height of 7 feet This allows air to sweep the length of the boiler
B Air supply openings can be louvered for weather protection but they shouldnot be covered with fine mesh wire as this type of covering has poor air flowqualities and is subject to clogging by dust or dirt
C A vent fan in the boiler room is not recommended as it could create a slightvacuum under certain conditions and cause variations in the quantity ofcombustion air This can result in unsatisfactory burner performance
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Model CBLE 125-800 HP Boilers
34
D Under no condition should the total area of the air supply openings be lessthan (1) square foot
E Size the openings by using the formulaArea (sq-ft) = CFMFPM
2 Amount of air required (cfm)
A Combustion Air = Rated bhp x 8 cfmbhp
B Ventilation Air = Maximum bhp x 2 cfmbhp
C Total recommended air = 10 cfmbhp - up to 1000 feet elevation Add 3percent more per 1000 feet of added elevation
3 Acceptable air velocity in Boiler Room (fpm)
A From floor to (7) foot height - 250 fpm
B Above (7) foot height - 500 fpm
Example Determine the area of the boiler room air supply openings for (1) 300 hpboiler at 800 feet altitude The air openings are to be 5 feet above floor level
bull Air required 300 x 10 = 3000 cfm (from 2B above)
bull Air velocity Up to 7 feet = 250 fpm (from 3 above)
bull Area Required Area = cfm = 3000250 = 12 sq-ft total
bull AreaOpening 122 = 6 sq-ftopening (2 required)
Notice
Consult local codes which may supersede these requirements
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Model CBLE 125-800 HP Boilers
35
This figure illustrates the basic gas valve arrangement on Cleaver-BrooksModel CB boiler and shows the contractors connection point The valves andcontrols between the contractor connection point and the gas main in thestreet are representative of a typical installation Actual requirements mayvary depending on local codes or local gas company requirements which
should be investigated prior to preparation of specifications and prior to con-struction
A Utilities service valveB Utilities service regulatorC Gas meterD Piping from meter to boiler
The size of the gas line from the meter to the gas pressure regulator at theboiler can be very important if gas pressures are marginal The gas line sizingis dependent on
1 Gas pressure at outlet of gas meter (C)2 Rate of gas flow required CFH3 Length of pipe run (D)4 Pressure required at contractor connection point
The local gas utility will advise the pressure that is available at the outlet oftheir meter
Figure A1-14 Typical Gas Piping Layout
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Model CBLE 125-800 HP Boilers
36
5
6
S
1
3
42
PILOT GAS LINE
S
S
MAIN GAS LINE
M M
ToBurner
GasSupply
11
10
97
12138
14 15
FLOW
FLOW
Figure A1-15 Model CB-LE Gas Train Components
BOILER
HP
MODEL CB
SUPPLYANDRE-
TURNCONN SIZES
(IN)(NPT)
A(IN)
RECOMMENDED OIL LINEA
SIZES(STANDARD PIPE)
(IN - IPS)
STOR-AGE
TANK TOBOILER
OR PUMPCONNECT
PUMPTO
BOILER
RE-TURN
LINE TOTANK
125150 200
34 12-12 1 1 1
250300350
34 34 1 1 1
400500600
34 11-34 1 1 1
700800
1 11-34 1 1 1
NOTE See No 2 Oil Line Sizing Instruction for systems with other conditions A For suction line condition with a maximum of 10 Feet of lift and a
total of 100 feet of suction line
Figure A1-16 No2 Oil Connection Size Location and Recommended Line Sizes
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Model CBLE 125-800 HP Boilers
37
Figure A1-17 No 2 Oil Piping Single Boiler
Installation Remote Oil Pump
Figure A1-18 No 2 Oil Piping Multiple Boiler
Installation Remote Oil Pumps
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
38
Figure A1-19 No 2 Oil Piping Multiple Boiler
Installation
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
39
Figure A1-20 No 2 Oil Piping Typical Arrangement
Table A1-24 Model CB-LE Blowdown
Tank Sizing
BOILER HP WATER (GAL)
125 97
150 118
200 145
250 146
300 176
350 210
400 177
500 209
600 250
700 800 296
NOTE Quantity of water removed from boiler by lowering normal water line 4
BOILER
HP
HEATING SURFACE (SQ-FT)
FIRESIDE WATERSIDE
125 625 679
150 750 820
200 1000 1092
250 1250 1346
300 1500 1623
350 1750 1932
400 2000 2151
500 2500 2691
600 3000 3262
700 800 3500 3810
Table A1-25 Heating Surface Model CB-LE
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Model CBLE 125-800 HP Boilers
40
BOILER HPSTEAM VOLUME CU-FT
STEAM DISENGAGING AREASQ-IN
HIGH PRESSUREA LOW PRESSUREB HIGH PRESSUREA LOW PRESSUREB
125 254 366 5371 5887
150 307 443 6511 7138
200 377 544 7985 8752
250 492 706 7980 8695
300 595 853 9651 10516
350 709 1017 11507 12538
400 721 979 9793 10593
500 837 1137 11376 12303
600 1015 1378 13787 14911
700-800 1198 1627 16273 17600
NOTE Based on normal water levelA Based on 150 psig design pressureB Based on 15 psig design pressure
Table A1-26 Steam Volume and Disengaging Area
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Model CBLE 125-800 HP Boilers
41
BOILERHP
BOILERCAPACITY(LBSHR)
OPERATING PRESSURES (PSIG)
50 75 100 125 150 175 200 250
100 3450
2-12 2-12 NA NA NA NA NA NA
125 4313 3 2-12 2-12 2-12 NA NA NA NA
150 5175 3 3 2-12 2-12 2-12 2-12 NA NA
200 6900 3 3 3 3 3 2-12 2-12 2-12
250 8625 4 3 3 3 3 3 3 3
300 10350 4 4 4 3 3 3 3 3
350 12025 4 4 4 4 4 3 3 3
400 13800 5 4 4 4 4 4 4 3
500 17210 6 5 5 4 4 4 4 4
600 20700 6 6 5 5 5 4 4 4
700 24150 6 6 6 5 5 5 5 4
800 27600 6 6 6 6 6 5 5 5
NOTE Valve sizes (300 Flanges) given in inchesStandard Non-Return valve selections limited to a maximum 2 to 1 turndown(50 of full load) selections based on typical non-return valve sizing recommen-dations For final valve selection contact your C-B authorized representative Forhigh turndown applications see Boiler Book Section I3 Table I3-3 Indicates pressure drop of less than 75 psig All other selections are less than6 psig pressure drop
Boiler HP
OPERATINGPRESSURE
PSIG125 150 200 250 300 350 400 500 600 700 800
15 8 8 10 10 12 12 12 12 12 12 12
30 6 6 8 8 8 10 10 10 12 12 12
40 6 6 6 8 8 8 10 10 10 12 12
50 6 6 6 6 8 8 8 10 10 10 12
75 4 4 6 6 6 8 8 8 8 10 10
100 4 4 6 6 6 6 6 8 8 8 10
125 4 4 4 6 6 6 6 8 8 8 8
150 3 3 4 4 6 6 6 6 6 8 8
200 25 3 4 4 4 4 6 6 6 6 6
250 25 3 3 4 4 4 4 6 6 6 6
NOTES1 Steam nozzle sizes given in inches2 Recommended steam nozzle sizes based on 4000 to 5000 fpm steam velocity3 All standard steam nozzle sizes for 150 psig design pressure or greater are the sameas 125 psig operating pressure on the above table To increase or decrease the standardsize request the change with your local Cleaver-Brooks authorized representative4 Shaded area denotes special surge load baffles must be installed to avoid possible wa-ter carry-over5 For incremental operating pressures see Table I3-1 Steam Systems Fundamentals
Table A1-28 Recommended Steam Nozzle Size (for
4000 to 5000 fpm nozzle velocity)
Table A1-29 Recommended Non-Return Valve Size
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Model CBLE 125-800 HP Boilers
42
1 Shortest boiler room length (Dwg A) is obtained by allowing for possible future tube replacement (from front or rearof boiler) through a window or doorway Allowance is only made for minimum door swing at each end of the boilerThis arrangement provides sufficient aisle space at the front of the boiler but a ldquotightrdquo space condition at the rear
If space permits approximately 15 additional feet should be allowed at the rear for additional aisle and workingspace
2 Next shortest boiler room length (Dwg B) is obtained by allowing for possible future tube replacement from thefront of the boiler Allowance is only made for minimum door swing at the rear
If space permits approximately 15 additional feet should be allowed at the rear for additional aisle and workingspace
3 A slightly longer boiler room (Dwg C) is obtained by allowing for possible future tube replacement from the rear ofthe boiler Allowance for door swing at the front provides sufficient aisle and working space at the front
Figure A1-21 Boiler Room Length (Typical Layouts)
BOILER HP 125-200 250-350 400-800
Dimension A 82 93 102
Dimension B 115 141 171
NOTES1 Recommended Minimum Distance Between Boiler and Wall Dimen-
sion ldquoArdquo allows for a ldquoclearrdquo 42 aisle between the water col-umn on the boiler and the wall If space permits this aisle
should be widened 2 Recommended Minimum Distance Between BoilersDimension ldquoBrdquo between boilers allows for a ldquoclearrdquo aisle of42 - 125 -200 hp48 - 250-350 hp60 - 400-800 hpIf space permits this aisle should be widened
Figure A1-22 Boiler Room Width (Typical Layout)
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Model CBLE 125-800 HP Boilers
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Model CBLE 125-800 HP Boilers
18
BOILER HP
MOTOR HP
60PPM
30PPM
25PPM
20PPM
125 5 10 5 10
150 75 10 10 10
200 15 15 20 NA
250 75 10 15 15
300 10 15 20 30
350 15 25 40 40
400 10 15 20 20
500 15 20 25 30
600 25 30 50 60
700 30 50 75 75
800 50 75 NA NA
NOTES For elevations above 700rsquo - contact your local
Cleaver-Brooks authorized representative
Table A1-9 Model CB-LE Blower Motor Selection -
Operating Pressures 150 psig and Less and All Hot
Water Boilers
BOILER HP
MOTOR HP
60
PPM
30
PPM
25
PPM
20
PPM
125 5 10 10 10
150 10 10 10 15
200 15 20 20 NA
250 75 10 15 20
300 10 20 30 40
350 20 30 40 50
400 10 15 20 25
500 20 25 30 40
600 25 40 60 60
700 40 60 75B 75C
800 60 75A NA NA
NOTES For elevation above 700rsquo - contact your local
Cleaver-Brooks authorized representative
A Downrate to 770 hp
B Downrate to 675 hp
C Downrate to 660 hp
Table A1-10 Model CB-LE Blower Motor Selection -
Operating Pressures Greater than 150 psig (Steam
Boilers)
09-09
Table A1-11 Blower Motor Selection CB-LE NTI BoilersTable A1-12 Turndown Guarantee for CB-LE NTI
Boilers - Natural Gas amp 2 Oil
Boiler SizeTurndown
9 ppm 15 ppm
125 41 41
150 41 51
200 41 51
250 51 51
300 51 51
350 51 51
400 51 61
500 51 61
600 61 61
700 71 71
800 71 71
800 HP to be derated to 720 HP for 9 ppm and 750 HP
for 15 ppm
Altitude 700 ft and less - Design Pressure 150 psi and less
800 HP - to be de-rated to 720 HP for 9 ppm and to 750 HP for 15 ppm
mpp9mpp51Nominal
Boiler Size Blower Motor HP Blower Motor HP
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Model CBLE 125-800 HP Boilers
19
BOILER HPFUEL
SERIES
HOT WATER STEAM
30 PSIG 125 PSIG 15 PSIG 150 PSIG 200 PSIG
125100 11200 11600 11300 12000 12600200 11400 11800 11500 12400 13000
700 11300 11700 11400 12300 12900
150
100 12300 12700 12400 13200 13900
200 12500 12900 12600 13500 14200
700 12300 12700 12400 13300 14000
200
100 14400 14800 14500 15500 16300
200 14500 14900 14600 15600 16400
700 14500 14900 14600 15600 16400
250
100 20700 21500 20800 22000 23800
200 21400 22200 21500 22800 24600
700 20900 21700 21000 22500 24300
300
100 23100 23900 23200 24800 26800
200 23500 24300 23600 25200 27200
700 23400 24200 23500 25000 27000
350
100 26200 27000 26300 27600 29100
200 26700 27500 26800 27800 29300
700 26400 27200 26500 27700 29200
400
100 33000 36970 33200 36270 39380
200 33300 37270 33500 36570 39680
700 33200 37170 33400 36470 39580
500
100 36600 40470 36810 39670 43480
200 36900 40780 37110 39970 43580
700 36800 40680 37010 39870 43280
600
100 41850 45905 42000 44725 49100
200 42150 46005 42300 45025 49400
700 42050 45915 42200 44925 49300
700800
100 49450 53000 49300 51850 57015
200 49750 53300 49600 52150 57315
700 49650 53200 49500 52050 57215
NOTES1 Weights shown are based on standard product offering for current listed boilers If units are of special design and construction actual weightwill be determined at time of shipment Shipment will then be made on shippers weight and count All weights are in US pounds
Table A1-13 Model CB-LE Boiler Weights
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Model CBLE 125-800 HP Boilers
20
VALVE
SETTING15 PSIG STEAM 100 PSIG STEAM 125 PSIG STEAM 150 PSIG STEAM 200 PSIG STEAM 250 PSIG STEAM 300 PSIG STEAM
BOILERHP
NO OF
VALVES-REQD
OUTLET
SIZE(IN)
NO OF
VALVES-REQD
OUTLET
SIZE(IN)
NO OF
VALVESREQD
OUTLET
SIZE(IN)
NO OF
VALVES-REQD
OUTLET
SIZE(IN)
NO OF
VALVES-REQD
OUTLET
SIZE(IN)
NO OF
VALVESREQD
OUTLET
SIZE(IN)
NO OF
VALVESREQD
OUTLET
SIZE(IN)
125 1 3 2 1-12 2(1) 1-12(1) 1-14
2(1) 1-12(1) 1-14
2(1) 1-14(1) 1
2 1 2 1
150 1 3 2(1) 2(1) 1-12
2 1-14 2(1) 1-12(1) 1-14
2(1) 1(1) 1-14
2 1 2 1
200 2 2-12 2 2 2 1-12 2 1-12 2(1) 1-12(1) 1-14
2 1-14 2(1) 1(1) 1-14
250 2(1) 2-12(1) 3
2(1) 2-12(1) 2
2(1)2(1)1-12
2(1) 2(1) 1-12
2(1)1-12(1)1-14
2(1) 1-12(1) 1-14
2 1-14
300 2 3 2(1) 2-12(1) 2
2 2 2(1) 2(1) 1-12
2 1-12 2(1)1-12(1)1-14
2(1) 1-12(1) 1-14
350 3(1) 2(2) 3
3(1) 2-12(2) 2
2(1)2(1)1-12
2 2 2(1) 1-12(1) 2
2 1-12 2(1) 1-12(1) 1-14
400 3(2) 3(1) 2-12
3(1) 2(2) 2-12
2(1)2(1)2-12
2(1) 2-12(1) 2
2(1) 1-12(1) 2
2(1) 2(1) 1-12
2 1-12
500 3 (3) 3 3 2-12 2 2-12 2(1) 2-12(1) 2
2(1) 2(1) 2-12
2(1) 2(1)1-12
2(1) 1-12(1) 2
600 4 3 4(3) 2-12(1) 2
3 2-12 2 2-12 2(1) 2(1) 2-12
2 2 2 2
700 5(3) 3(2) 2-12
5(3) 2-12(2) 2
3 2-12 3(2) 2-12(1) 2
2 2-12 2(1) 2(1) 2-12
2 2
800 5(3) 3(2) 2-12
5(3) 2-12(2) 2
4(3) 2-12(1) 2
3(2) 2-12(1) 2
2 2-12 2(1) 2(1) 2-12
2(1) 2(1) 2-12
NOTES Valve manufacturers are Kunkle Consolidated or Conbraco depending on availability This table revised 042012
Table A1-14 Steam Boiler Safety Valve Openings
VALVE
SETTING 30 PSIG HW 60 PSIG HW 100 PSIG HW 125 PSIG HW
BOILER HPNO OF
VALVESREQD
OUTLETSIZE(IN)
NO OFVALVESREQD
OUTLETSIZE(IN)
NO OFVALVESREQD
OUTLETSIZE(IN)
NO OFVALVESREQD
OUTLETSIZE(IN)
125 1 2-12 1 2 1 2 1 1-14
150 1 2-12 1 2-12 1 2 1 2
200 2(1) 2-12(1) 1-14
1 2-12 1 2 1 2
250 2 (1) 2(1) 2-12
1 2-12 1 2-12 1 2
300 2 2-12 2(1) 1(1) 2-12
1 2-12 1 2-12
350 3(2) 2-12(1) 1
2(1) 2-12(1) 2
1 2-12 1 2-12
400 3 (1) 2(2) 2-12 2 (1) 2(2) 2-12 2 (1) 1(1) 2-12 1 2-12
500 4 (1) 1(3) 2-12
2 2-12 2(1) 2-12(1) 1-14
2(1) 1(1) 2-12
600 4(3) 2-12(1) 2
3(1) 1-1(2) 2-12
2(1) 2(1) 2-12
2(1) 2-12(1) 1-14
700 amp 800 5 (1) 1(4) 2-12
3(1) 2(2) 2-12
2 2-12 2(1) 2-12(1) 2
NOTES Hot water relief valves are Kunkle 537
Table A1-15 Hot Water Boiler Relief Valve Openings
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Model CBLE 125-800 HP Boilers
21
BOILER HP A B C D E F G X1 X2 X3
125 6 9 112 39-12 57-12 4 44-12 10 9-34 22-12
150 6 9 136 39-12 57-12 4 44-12 10 9-34 22-12
200 6 9 167 39-12 57-12 4 44-12 10 9-34 22-12
250 6 12 131 46 70 4 56 10 22 22-12
300 6 12 158 46 70 4 56 10 22 22-12
350 6 12 188 46 70 4 56 10 22 22-12
NOTE
All numbers in table are in inches
6-inch high mounting piers recommended for use beneath the boiler base frame The use of these piers provides increased inspection
accessibility to the piping beneath the boiler and added height for washing down the area beneath the boiler
Figure A1-7 Space Required to Open Rear Head on Model CB-LE Boilers Equipped with Davits
BOILER HPDIMENSIONS (INCHES)
A B C D E
CB-125 THRU CB-200 33 55 45 68 32
CB-250 THRU CB-350 42 69 58 86 43
CB-400 THRU CB-800 51 88 71 109 53
Figure A1-8 Model CB-LE Boiler Mounting Piers (60rdquo and 78rdquo)
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Model CBLE 125-800 HP Boilers
22
BOILER HP A B C D E F G
400 6 14 134 50 78 6-12 58-78
500 6 14 155 50 78 6-12 58-78
600 6 14 187 50 78 6-12 58-78
700-800 6 14 220 50 78 6-12 58-78
NOTE1 All numbers in table are in inches2 6-inch high mounting piers recommended for use beneath the boiler base frame The use of these piers provides in-
creased inspection accessibility to the piping beneath the boiler and added height for washing down the area beneaththe boiler
Figure A1-9 Model CB-LE Boiler Mounting Piers (96rdquo)
CBLE 250-350HP
CBLE 400-800HP
Motor HP Hole Number
75 1
15 1
25 2
40 3
Motor HP Hole Number
10 1
20 1
30 250 2
75 3
Figure A1-10 Front Davit Support
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Model CBLE 125-800 HP Boilers
23
BOILERHP
VIEW
ALL DIMENSIONS IN INCHES
A B C D E
125 All B 80-14 29-34 70-12 10 3
150 All B 80-14 29-34 83-12 10 3
200 All B 80-14 29-34 114-12 10 3
250Steam B 99 36 72 10 3
Hot Water B 99 36 81 10 3
300
Steam B 99 36 99 10 3
Hot Water B 99 36 108 10 3
350Steam B 99 36 129 10 3
Hot Water B 99 36 138 10 3
400Steam B 119 35-34 78 11 3
Hot Water B 119 35-34 78 11 3
500Steam B 119 35-34 99 11 3
Hot Water B 119 35-34 99 11 3
600Steam B 119 35-34 131 11 3
Hot Water B 119 35-34 131 11 3
700 amp 800Steam B 119 35-34 164 11 3
Hot Water B 119 35-34 164 11 3
NOTE A B and C dimensions may vary by 12 inch
Figure A1-11 Lifting Lug Location Model CB-LE Boilers
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Model CBLE 125-800 HP Boilers
24
PERFORMANCE DATA
The Low Emission Option provides NOx reduction at current published andpredicted fuel-to-steam efficiencies
Specifying BoilerEfficiency
Cleaver-Brooks offers an industry leading fuel-to-steam boiler efficiency guaranteefor Model CB-LE Firetube Boilers The guarantee is based on the fuel-to-steam
efficiencies shown in the efficiency tables and the following conditions Theefficiency percent number is only meaningful if the specific conditions of theefficiency calculations are clearly stated in the specification (see Cleaver-Brookspublication CB-7768 for a detailed description of efficiency calculations)
When specifying the efficiencies in the tables be sure to include the specificguarantee conditions to maximize the effectiveness of your efficiency specification Ifyou have any questions regarding the efficiency specifications please contact yourlocal Cleaver-Brooks authorized representative
EfficiencySpecification
The boiler manufacturer shall guarantee that at the time of startup the boiler willachieve fuel-to-steam efficiency (as shown in Table A1-16 and Table A1-17) at100 firing rate (add efficiency guarantees at 25 50 and 75 of rating if
required) If the boiler(s) fail to achieve the corresponding guaranteed efficiency aspublished the boiler manufacturer will rebate to the ultimate boiler owner tenthousand dollars ($10000) for every full efficiency point (10) that the actualefficiency is below the guaranteed level
The specified boiler efficiency is based on the following conditions
1 Fuel specification used to determine boiler efficiency
bull Natural Gas
Carbon (wt) = 6998Hydrogen (wt) = 2231Sulfur (wt) = 00
Heating value Btulb = 21830bull No 2 Oil
Carbon (wt) = 858Hydrogen (wt) = 127Sulfur (wt) = 02Heating value Btulb = 19420
No 6 Oil
Carbon (wt) = 866Hydrogen (wt) = 109Sulfur (wt) = 209Heating value Btulb = 18830
2 Efficiencies are based on ambient air temperature of 80 degF relative humidity of30 and 15 excess air in the exhaust flue gas
3 Efficiencies are based on manufacturerrsquos published radiation and convectionlosses (For Cleaver-Brooks radiation and convection losses see BoilerEfficiency Facts Guide publication number CB-7767)
4 Any efficiency verification testing will be based on the stack loss method
For efficiencies and stack temperatures at operating pressures not listed followthese procedures
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Model CBLE 125-800 HP Boilers
25
When the operating steam pressure is between 10 psig and 125 psig interpolatethe values from the efficiency tables
When the operating steam pressure is above 125 psig estimated efficiency can becalculated as follows
Example
Boiler 350 hpFuel natural gas
Operating steam pressure 200 psig
Find the fuel-to-steam efficiency at 100 firing rate From Table A1-16 for a 350hp boiler operating at 100 firing rate and an operating steam pressure of 125psig the efficiency is 825
Using Figure A1-12 note that the stack temperature increases 36 degF at the higheroperating pressure To estimate boiler efficiency use this rule of thumb For every40 degF increase in stack temperature efficiency decreases by 1 Since the stacktemperature rise is 36 degF the decrease in the boiler efficiency at 200 psig operatingpressure is calculated as follows 3640 =9 Therefore the boiler efficiency at200 psig operating pressure is 825 -9 = 816
Emissions The emission data included in this section consists of typical emission levels forModel CB boilers equipped with 60 30 25 and 20 ppm LE Options when firingnatural gas and No 2 oil
Notice
The data in Table A1-18 and Table A1-19 represent typical emission levels only
Guaranteed emission levels are available from your local Cleaver-Brooks authorized
representative
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Model CBLE 125-800 HP Boilers
26
BOILER
HP
OPERATING PRESSURE = 10 psig OPERATING PRESSURE = 125 psig
OF LOAD OF LOAD
25 50 75 100 25 50 75 100
125 833 836 834 832 804 809 810 810
150 844 846 845 843 815 820 820 821
200 850 853 851 849 822 827 827 827
250 850 847 840 833 820 820 816 813
300 853 853 846 839 826 827 822 819
350 853 857 852 845 826 832 828 825
400 845 847 846 844 818 822 824 822
500 855 857 855 852 828 832 833 831
600 857 860 858 856 829 835 836 835
700 857 862 860 857 830 836 836 836
800 858 861 859 856 831 836 837 835
Table A1-16 Predicted Fuel-to-Steam Efficiencies - Natural Gas
Figure A1-12 Predicted Stack Temperature Increase for Pressure Greater Than 125 psig
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Model CBLE 125-800 HP Boilers
27
Table A1-18 CB-LE Boilers - Natural Gas Emission Levels
POLLUTANT
ESTIMATED LEVEL
60 ppm 30 ppm 25 ppm 20 ppm 15 ppm 9 ppm
CO ppmA
lbMMBtu
50150B
004011
50150B
004011
50150B
004011
50150B
004011
50
004
50
004
NOx ppmA
lbMMBtu
60
007
30
0035
25
003
20
0024
15
0018
9
0011
SOx ppmA
lbMMBtu
1
0001
1
0001
1
0001
1
0001
1
0001
1
0001
HCVOC5 ppmA
lbMMBtu
10
0004
10
0004
10
0004
10
0004
10
0004
10
0004
PM ppmA
lbMMBtu
-
001
-
001
-
001
-
001
-
001
-
001
A ppm levels are given on a dry volume basis and corrected to 3 oxygen (15 excess air)
B CO emission for 60 30 25 amp 20 ppm system is 50 ppm (004 lbMMBtu) when boiler is operating above 50 of rated capacity
CO emission is 150 ppm (011 lbMMBtu) when boiler is operating below 50 of rated capacity
Table A1-17 Predicted Fuel-to-Steam Efficiencies - No 2 Oil
BOILER
HP
OPERATING PRESSURE = 10 psig OPERATING PRESSURE = 125 psig
OF LOAD OF LOAD
25 50 75 100 25 50 75 100
125 867 869 867 866 837 842 843 843
150 878 880 878 876 848 853 853 854
200 884 887 884 882 856 860 860 860
250 883 881 874 867 853 853 849 847
300 886 887 880 873 859 860 855 852
350 886 890 885 878 859 866 861 858
400 879 881 879 876 851 855 856 855
500 889 890 889 886 861 865 866 864
600 890 894 892 890 862 868 869 868
700 891 895 893 891 863 869 870 869
800 892 895 893 890 864 869 870 868
Table A1-19 CB-LE Boilers - No 2 Oil Emission Levels
POLLUTANTESTIMATED LEVEL
60 ppm LE Option 30 25 20 ppm LE Option 15 ppm 9 ppm
CO ppmA
lbMMBtu
50
0039
50
0039
50
0039
50
0039
NOx ppmA
lbMMBtu140
018690
012085
011370
0093
SOx ppmA
lbMMBtu
278
052
278
052
278
052
278
052
HCVOCs ppmA
lbMMBtu
4
0002
4
0002
4
0002
4
0002
PM ppmA
lbMMBtu
-
0025
-
0025
-
0025
-
0025
A ppm levels are given on a dry volume basis and corrected to 3 oxygen (15 excess air)
BASED ON THE FOLLOWING CONSTITUENT LEVELS
Fuel-bound Nitrogen content = 0015 by weight
Sulfur content = 05 by weight
Ash content = 001 by weight
09-09
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28
ENGINEERING DATA
Sound Level Table A1-20 gives a summary of predicted sound pressure levels for Model CBboilers with 30 ppm LE Options Contact your local Cleaver-Brooks authorizedrepresentative for sound levels or other LE Options
Units - The units for the sound level tables are dbA (decibels measured on the A-weighted scale) in reference to 00002 microbars (20 micro-Newtons per square
meter) Their reference are standardly used in specifying and reporting soundpressure levels on industrial equipment
Test Method - The sound pressure levels in the above tables were obtained fromtests in accordance with the ldquoABMA Test Code for the Measurement of Sound fromPackaged Boilersrdquo In accordance with this code the sound pressure levels reportedwere measured on the boiler centerline 4-12 feet vertically above the bottom of thebase rails and 3 feet horizontally in front of the end of the blower motor or frontsurface of the electrical cabinet
Sound Level Meter - The sound level meter used complies with ANSI S14 Type 1(Precision) The readings are taken with the meter set for slow response andcorrected for background levels
Sound Pressure - The large size boilers the need for auxiliary equipment and thenecessary interconnecting piping make it impractical (and sometimes impossible) toprovide a boiler testing environment which is suitable for taking the data needed todevelop Sound Pressure Power levels
Typical Values - Sound pressure levels (dbA) for the same boiler will vary betweenboiler rooms Sound levels will vary with motor type NOx levels and altitudes Inaddition variations will occur between different people using different sound meterson the same boiler And finally no two boilers can be expected to give precisely thesame sound levels For these reasons we can only predict but not guarantee soundlevels (dbA)
BOILER HP 125 150 200 250 300 350 400 500 600 700 800
HFO dbA 84 84 84 83 84 85 84 85 85 88 90
LFO dbA 82 82 83 81 82 83 82 83 83 84 89
HFG dbA 82 82 83 82 83 84 83 83 85 87 90
LFG dbA 81 81 82 81 82 83 81 81 82 84 88
NOTES1 Sound pressure levels measured on boilers operating in various locations and ex-
pressed in dbA are as shown2 Based on standard altitude fans and fan motors 60 Hz3 Contact your local Cleaver-Brooks authorized representative for sound levels of 60 25or 20 ppm LE Options
ABBREVIATIONS
HF = High Fire LF = Low Fire O = Oil G = Gas
Table A1-20 Model CBLE Predicted Sound Levels 30 ppm NOx Systemss
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Model CBLE 125-800 HP Boilers
29
Gas-Fired Burners Table A1-21 shows gas pressure with standard over- and undersized gas trains
Table A1-22 shows minimum required gas pressure altitude conversion
Figure A1-13 shows standard gas train sizes and locations for Model CB FiretubeBoilers
Figure A1-14 shows typical gas train piping layouts for multiple boiler applications
Figure A1-15 shows standard gas train components
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Model CBLE 125-800 HP Boilers
30
Table A1-21 Standard Undersize and Oversize Gas Trains
CBLE
BOILER HP GAS TRAINSIZE
UPSTREAMVALVE
DOWNSTREAMVALVE
EMISSIONS LEVEL 09 ppm 15 ppm 20 ppm 30 ppm 60 ppm UC
125 HP 15 in BB BB 33 - 49 psi 33 - 49 psi 08 - 50 psi 07 - 50 psi 07 - 50 psi 07 - 50 ps
125 HP 15 in PC PC 34 - 50 psi 34 - 50 psi 09 - 50 psi 08 - 50 psi 08 - 50 psi 08 - 50 ps
125 HP 20 in BB BB 31 - 33 psi 31 - 33 psi 06 - 08 psi 06 - 07 psi 05 - 07 psi 05 - 07 ps
125 HP 20 in PC PC 31 - 34 psi 31 - 34 psi 06 - 09 psi 06 - 08 psi 06 - 08 psi 05 - 08 ps
125 HP 25 in PC PC 30 - 31 psi 30 - 31 psi 04 - 06 psi 04 - 06 psi 04 - 05 psi 04 - 05 ps
125 HP 30 in PC PC 29 - 30 psi 29 - 30 psi 04 - 04 psi 04 - 04 psi 04 - 04 psi 03 - 04 ps
125 HP 40 in PC PC 29 - 29 psi 29 - 29 psi 04 - 04 psi 03 - 04 psi 03 - 04 psi 03 - 03 ps
150 HP 15 in BB BB 37 - 55 psi 39 - 58 psi 10 - 47 psi 09 - 50 psi 09 - 50 psi 09 - 50 ps
150 HP 15 in PC PC 38 - 57 psi 40 - 60 psi 11 - 42 psi 11 - 50 psi 10 - 50 psi 10 - 50 ps
150 HP 20 in BB BB 34 - 37 psi 36 - 39 psi 07 - 10 psi 06 - 09 psi 06 - 09 psi 06 - 09 ps
150 HP 20 in PC PC 34 - 38 psi 36 - 40 psi 07 - 11 psi 07 - 11 psi 07 - 10 psi 06 - 10 ps
150 HP 25 in PC PC 32 - 34 psi 34 - 36 psi 05 - 07 psi 04 - 06 psi 04 - 06 psi 04 - 06 ps
150 HP 30 in PC PC 32 - 32 psi 34 - 34 psi 04 - 05 psi 04 - 04 psi 04 - 04 psi 03 - 04 ps
150 HP 40 in PC PC 31 - 32 psi 33 - 34 psi 04 - 04 psi 03 - 04 psi 03 - 04 psi 03 - 03 ps
200 HP 15 in BB BB 46 - 69 psi 50 - 75 psi 16 - 50 psi 15 - 50 psi 15 - 50 ps
200 HP 15 in PC PC 48 - 72 psi 52 - 78 psi 18 - 50 psi 17 - 50 psi 17 - 50 ps
200 HP 20 in BB BB 41 - 46 psi 45 - 50 psi 10 - 16 psi 10 - 15 psi 10 - 15 ps
200 HP 20 in PC PC 41 - 48 psi 45 - 52 psi 11 - 18 psi 11 - 17 psi 10 - 17 ps
200 HP 25 in PC PC 38 - 41 psi 42 - 45 psi 07 - 10 psi 07 - 10 psi 06 - 10 ps
200 HP 30 in PC PC 36 - 38 psi 40 - 42 psi 06 - 07 psi 05 - 07 psi 05 - 06 ps
200 HP 40 in PC PC 36 - 36 psi 40 - 40 psi 05 - 06 psi 05 - 05 psi 04 - 05 ps
250 HP 15 in BB BB 41 - 62 psi 44 - 67 psi 24 - 50 psi 24 - 27 psi 24 - 26 psi 23 - 26 ps
250 HP 15 in PC PC 45 - 67 psi 48 - 72 psi 28 - 50 psi 27 - 28 psi 27 - 27 psi 27 - 27 ps
250 HP 20 in BB BB 33 - 38 psi 37 - 41 psi 16 - 24 psi 16 - 24 psi 16 - 24 psi 15 - 23 ps
250 HP 20 in PC PC 34 - 40 psi 37 - 43 psi 17 - 28 psi 17 - 27 psi 16 - 27 psi 16 - 27 ps
250 HP 25 in PC PC 29 - 33 psi 32 - 37 psi 11 - 16 psi 11 - 16 psi 11 - 16 psi 10 - 15 ps
250 HP 30 in PC PC 27 - 29 psi 31 - 32 psi 09 - 11 psi 09 - 11 psi 09 - 11 psi 09 - 10 ps
250 HP 40 in PC PC 26 - 27 psi 29 - 31 psi 08 - 09 psi 08 - 09 psi 08 - 09 psi 08 - 09 ps
300 HP 15 in - 20 in BB BB 55 - 83 psi 57 - 85 psi 30 - 50 psi 30 - 36 psi 30 - 35 psi 30 - 35 ps
300 HP 15 in - 20 in PC PC 58 - 87 psi 60 - 90 psi 33 - 50 psi 33 - 37 psi 33 - 36 psi 33 - 36 ps
300 HP 20 in BB BB 46 - 55 psi 47 - 57 psi 21 - 30 psi 21 - 30 psi 20 - 30 psi 20 - 30 ps
300 HP 20 in PC PC 47 - 58 psi 48 - 60 psi 22 - 33 psi 22 - 33 psi 21 - 33 psi 21 - 33 ps
300 HP 30 in PC PC 39 - 46 psi 40 - 47 psi 13 - 21 psi 13 - 21 psi 12 - 20 psi 12 - 20 ps
300 HP 40 in PC PC 37 - 39 psi 39 - 40 psi 11 - 13 psi 11 - 13 psi 10 - 12 psi 10 - 12 ps
350 HP 15 in - 20 in BB BB 64 - 90 psi 62 - 90 psi 42 - 50 psi 42 - 50 psi 41 - 50 psi 41 - 50 ps
350 HP 15 in - 20 in PC PC 68 - 90 psi 66 - 90 psi 46 - 50 psi 46 - 50 psi 45 - 50 psi 45 - 50 ps
350 HP 20 in BB BB 54 - 64 psi 53 - 62 psi 32 - 42 psi 32 - 42 psi 32 - 41 psi 31 - 41 ps
350 HP 20 in PC PC 56 - 68 psi 54 - 66 psi 34 - 46 psi 34 - 46 psi 33 - 45 psi 33 - 45 ps
350 HP 25 in PC PC 43 - 54 psi 42 - 53 psi 21 - 32 psi 21 - 32 psi 20 - 32 psi 20 - 31 ps
350 HP 30 in PC PC 40 - 43 psi 38 - 42 psi 17 - 21 psi 17 - 21 psi 17 - 20 psi 16 - 20 ps
350 HP 40 in PC PC 37 - 40 psi 36 - 38 psi 15 - 17 psi 15 - 17 psi 14 - 17 psi 14 - 16 ps
400 HP 15 in - 20 in BB BB 69 - 90 psi 69 - 90 psi 46 - 50 psi 46 - 50 psi 45 - 50 psi 45 - 50 ps
400 HP 15 in - 20 in PC PC 74 - 90 psi 75 - 90 psi 51 - 87 psi 51 - 77 psi 51 - 77 psi 51 - 77 ps
400 HP 20 in BB BB 55 - 69 psi 56 - 69 psi 32 - 46 psi 32 - 46 psi 32 - 45 psi 32 - 45 ps
400 HP 20 in PC PC 57 - 74 psi 58 - 75 psi 34 - 50 psi 34 - 50 psi 34 - 50 psi 34 - 50 ps
400 HP 25 in PC PC 41 - 55 psi 42 - 56 psi 18 - 32 psi 18 - 32 psi 18 - 32 psi 18 - 32 ps
400 HP 30 in PC PC 37 - 41 psi 38 - 42 psi 13 - 18 psi 13 - 18 psi 13 - 18 psi 13 - 18 ps
400 HP 40 in PC PC 34 - 37 psi 35 - 38 psi 11 - 13 psi 10 - 13 psi 10 - 13 psi 10 - 13 ps
500 HP 20 in - 25 in BB PC 58 - 76 psi 58 - 76 psi 46 - 50 psi 46 - 50 psi 45 - 50 psi 45 - 50 ps
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Model CBLE 125-800 HP Boilers
31
BB = Butter Ball PC = Plug Cock
NOTE In cases where the gas train increases in size after the regulating valve two diameters are listed The first number is the customer connection size
500 HP 20 in - 25 in PC PC 60 - 83 psi 60 - 83 psi 48 - 50 psi 47 - 50 psi 47 - 50 psi 47 - 50 psi
500 HP 25 in PC PC 39 - 58 psi 39 - 58 psi 27 - 46 psi 27 - 46 psi 27 - 45 psi 26 - 45 psi
500 HP 30 in PC PC 33 - 39 psi 33 - 39 psi 20 - 27 psi 20 - 27 psi 20 - 27 psi 20 - 26 psi
500 HP 40 in PC PC 28 - 33 psi 28 - 33 psi 16 - 20 psi 16 - 20 psi 15 - 20 psi 15 - 20 psi
600 HP 20 in - 25 in BB PC 80 - 90 psi 80 - 90 psi 65 - 90 psi 65 - 90 psi 64 - 89 psi 63 - 88 psi
600 HP 20 in - 25 in PC PC 82 - 90 psi 82 - 90 psi 67 - 100 psi 67 - 100 psi 66 - 99 psi 66 - 99 psi
600 HP 25 in PC PC 54 - 80 psi 54 - 80 psi 39 - 50 psi 38 - 50 psi 38 - 50 psi 37 - 50 psi
600 HP 25 in - 30 in PC PC 52 - 54 psi 52 - 54 psi 37 - 39 psi 36 - 38 psi 35 - 38 psi 35 - 37 psi
600 HP 30 in PC PC 43 - 52 psi 43 - 52 psi 28 - 37 psi 27 - 36 psi 27 - 35 psi 26 - 35 psi
600 HP 40 in PC PC 37 - 43 psi 37 - 43 psi 22 - 28 psi 21 - 27 psi 20 - 27 psi 20 - 26 psi
700 HP 20 in - 30 in BB PC 110 - 150 psi 107 - 150 psi 87 - 131 psi 86 - 130 psi 86 - 129 psi 86 - 128 psi
700 HP 20 in - 30 in PC PC 113 - 150 psi 110 - 150 psi 90 - 135 psi 89 - 134 psi 89 - 134 psi 89 - 133 psi
700 HP 25 in - 30 in PC PC 71 - 90 psi 68 - 90 psi 48 - 50 psi 47 - 50 psi 47 - 50 psi 46 - 50 psi
700 HP 30 in PC PC 60 - 71 psi 57 - 68 psi 36 - 48 psi 36 - 47 psi 35 - 47 psi 35 - 46 psi
700 HP 40 in PC PC 51 - 60 psi 48 - 57 psi 28 - 36 psi 27 - 36 psi 27 - 35 psi 26 - 35 psi
800 HP 20 in - 30 in BB PC 108 - 150 psi 107 - 150 psi 106 - 150 psi
800 HP 20 in - 30 in PC PC 112 - 150 psi 111 - 150 psi 110 - 150 psi800 HP 25 in - 30 in PC PC 61 - 90 psi 60 - 100 psi 59 - 100 psi
800 HP 30 in PC PC 48 - 61 psi 47 - 50 psi 46 - 50 psi
800 HP 40 in PC PC 35 - 48 psi 34 - 47 psi 34 - 46 psi
Standard Gas Train size is highlighted
Table A1-21 Standard Undersize and Oversize Gas Trains (Continued)
CBLE
BOILER HP GAS TRAINSIZE
UPSTREAMVALVE
DOWNSTREAMVALVE
EMISSIONS LEVEL 09 ppm 15 ppm 20 ppm 30 ppm 60 ppm UC
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Model CBLE 125-800 HP Boilers
32
ALTITUDE(FT)
CORRECTIONFACTOR
ALTITUDE(FT)
CORRECTIONFACTOR
1000 104 6000 1252000 107 7000 130
3000 111 8000 135
4000 116 9000 140
5000 121 - -
To obtain minimum required gas pressure at altitudesabove 700 feet multiply the pressure by the listed factorsInches WC x 0577 = ozsq-inOzsq-in x 1732 = Inches WCInches WC x 00361= psigOzsq-in x 00625 = psigPsig x 2771 = Inches WCPsig x 160 = Ozsq-in
Table A1-22 Minimum Required Regulated Gas Pressure
Altitude Conversion
BOILERHP
TYPE OF GAS AND HEAT CONTENT
NATURAL GAS1000 (Btucu-ft)
PROPANE GAS2550 (Btucu-ft)
125 5103 2000
150 6124 2402
200 8165 3202
250 10206 4002
300 12247 4802
350 14280 5600
400 16329 6404
500 20415 8006
600 24494 9605
700 28576 11206
800 32659 12807
Table A1-23 Maximum Gas Consumption (CFH)
for Natural Gas and Propane Vapor
BOILER
HP
MODEL CB
CONNECTION SIZE
(IN NPT)
LOCATIONDIMENSION
ldquoArdquo (IN)
125-200 1-12 52
250-350 2 56
400 2 58
500 2-12 60
600 2-12 - 3 71
700-800 3 65
Figure A1-13 Standard Gas Train Connection Size and Location
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Model CBLE 125-800 HP Boilers
33
Oil-Fired Burners Fuel oil consumption information is shown on the boiler rating sheets in theDimensions and Rating Section
Figure A1-16 shows the oil connection sizes and locations for Model CB Boilersfiring No 2 oil
Figure A1-17 through Figure A1-18 show typical oil systems and layouts
Figure A1-19 and Figure A1-20 show the detail of an oil transfer tank (day tank)typically utilized to provide a storage reservoir between the oil system supply pumpand the boiler oil pump
General BoilerInformation
Table A1-24 shows blowdown tank sizing information
Table A1-25 provides heating surface information
Table A1-26 provides steam volume and disengaging area information
Table A1-27 provides recommended steam nozzle sizes
Table A1-28 provides recommended non-return valve sizes
Boiler RoomInformation
Figure A1-21 shows typical boiler room length requirements
Figure A1-22 shows typical boiler room width requirements
Figure A1-23 shows typical breeching arrangements
Stack SupportCapabilities
All standard Cleaver-Brooks Firetube Boilers with an LE option can support up to2000 lbs without additional support
LE Boilers 250 hp through 800 hp can be reinforced to support 3000 lbs
StackBreechingSize Criteria
The design of the stack and breeching must provide the required draft at each boilerflue gas outlet Proper draft is critical to burner performance
Although constant pressure at the flue gas outlet of the Model CB-LE is not requiredit is necessary to size the stackbreeching to limit flue gas pressure variation Theallowable pressure range is ndash025 WC to +025 WC
For additional information please review Section I4 General Engineering Data(Stacks) and Section F Stacks Stack and breeching sizes should always be providedby a reputable stack supplier who will design the stack and breeching system basedon the above criteria Your local Cleaver-Brooks authorized representative is capableof assisting in your evaluation of the stackbreeching design
Boiler RoomCombustion Air
When determining boiler room air requirements the size of the room air flow andvelocity of air must be reviewed as follows
1 Size (area) and location of air supply openings in boiler room
A Two (2) permanent air supply openings in the outer walls of the boiler room
are recommended Locate (1) at each end of the boiler room preferablybelow a height of 7 feet This allows air to sweep the length of the boiler
B Air supply openings can be louvered for weather protection but they shouldnot be covered with fine mesh wire as this type of covering has poor air flowqualities and is subject to clogging by dust or dirt
C A vent fan in the boiler room is not recommended as it could create a slightvacuum under certain conditions and cause variations in the quantity ofcombustion air This can result in unsatisfactory burner performance
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Model CBLE 125-800 HP Boilers
34
D Under no condition should the total area of the air supply openings be lessthan (1) square foot
E Size the openings by using the formulaArea (sq-ft) = CFMFPM
2 Amount of air required (cfm)
A Combustion Air = Rated bhp x 8 cfmbhp
B Ventilation Air = Maximum bhp x 2 cfmbhp
C Total recommended air = 10 cfmbhp - up to 1000 feet elevation Add 3percent more per 1000 feet of added elevation
3 Acceptable air velocity in Boiler Room (fpm)
A From floor to (7) foot height - 250 fpm
B Above (7) foot height - 500 fpm
Example Determine the area of the boiler room air supply openings for (1) 300 hpboiler at 800 feet altitude The air openings are to be 5 feet above floor level
bull Air required 300 x 10 = 3000 cfm (from 2B above)
bull Air velocity Up to 7 feet = 250 fpm (from 3 above)
bull Area Required Area = cfm = 3000250 = 12 sq-ft total
bull AreaOpening 122 = 6 sq-ftopening (2 required)
Notice
Consult local codes which may supersede these requirements
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Model CBLE 125-800 HP Boilers
35
This figure illustrates the basic gas valve arrangement on Cleaver-BrooksModel CB boiler and shows the contractors connection point The valves andcontrols between the contractor connection point and the gas main in thestreet are representative of a typical installation Actual requirements mayvary depending on local codes or local gas company requirements which
should be investigated prior to preparation of specifications and prior to con-struction
A Utilities service valveB Utilities service regulatorC Gas meterD Piping from meter to boiler
The size of the gas line from the meter to the gas pressure regulator at theboiler can be very important if gas pressures are marginal The gas line sizingis dependent on
1 Gas pressure at outlet of gas meter (C)2 Rate of gas flow required CFH3 Length of pipe run (D)4 Pressure required at contractor connection point
The local gas utility will advise the pressure that is available at the outlet oftheir meter
Figure A1-14 Typical Gas Piping Layout
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Model CBLE 125-800 HP Boilers
36
5
6
S
1
3
42
PILOT GAS LINE
S
S
MAIN GAS LINE
M M
ToBurner
GasSupply
11
10
97
12138
14 15
FLOW
FLOW
Figure A1-15 Model CB-LE Gas Train Components
BOILER
HP
MODEL CB
SUPPLYANDRE-
TURNCONN SIZES
(IN)(NPT)
A(IN)
RECOMMENDED OIL LINEA
SIZES(STANDARD PIPE)
(IN - IPS)
STOR-AGE
TANK TOBOILER
OR PUMPCONNECT
PUMPTO
BOILER
RE-TURN
LINE TOTANK
125150 200
34 12-12 1 1 1
250300350
34 34 1 1 1
400500600
34 11-34 1 1 1
700800
1 11-34 1 1 1
NOTE See No 2 Oil Line Sizing Instruction for systems with other conditions A For suction line condition with a maximum of 10 Feet of lift and a
total of 100 feet of suction line
Figure A1-16 No2 Oil Connection Size Location and Recommended Line Sizes
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Model CBLE 125-800 HP Boilers
37
Figure A1-17 No 2 Oil Piping Single Boiler
Installation Remote Oil Pump
Figure A1-18 No 2 Oil Piping Multiple Boiler
Installation Remote Oil Pumps
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Model CBLE 125-800 HP Boilers
38
Figure A1-19 No 2 Oil Piping Multiple Boiler
Installation
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Model CBLE 125-800 HP Boilers
39
Figure A1-20 No 2 Oil Piping Typical Arrangement
Table A1-24 Model CB-LE Blowdown
Tank Sizing
BOILER HP WATER (GAL)
125 97
150 118
200 145
250 146
300 176
350 210
400 177
500 209
600 250
700 800 296
NOTE Quantity of water removed from boiler by lowering normal water line 4
BOILER
HP
HEATING SURFACE (SQ-FT)
FIRESIDE WATERSIDE
125 625 679
150 750 820
200 1000 1092
250 1250 1346
300 1500 1623
350 1750 1932
400 2000 2151
500 2500 2691
600 3000 3262
700 800 3500 3810
Table A1-25 Heating Surface Model CB-LE
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Model CBLE 125-800 HP Boilers
40
BOILER HPSTEAM VOLUME CU-FT
STEAM DISENGAGING AREASQ-IN
HIGH PRESSUREA LOW PRESSUREB HIGH PRESSUREA LOW PRESSUREB
125 254 366 5371 5887
150 307 443 6511 7138
200 377 544 7985 8752
250 492 706 7980 8695
300 595 853 9651 10516
350 709 1017 11507 12538
400 721 979 9793 10593
500 837 1137 11376 12303
600 1015 1378 13787 14911
700-800 1198 1627 16273 17600
NOTE Based on normal water levelA Based on 150 psig design pressureB Based on 15 psig design pressure
Table A1-26 Steam Volume and Disengaging Area
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Model CBLE 125-800 HP Boilers
41
BOILERHP
BOILERCAPACITY(LBSHR)
OPERATING PRESSURES (PSIG)
50 75 100 125 150 175 200 250
100 3450
2-12 2-12 NA NA NA NA NA NA
125 4313 3 2-12 2-12 2-12 NA NA NA NA
150 5175 3 3 2-12 2-12 2-12 2-12 NA NA
200 6900 3 3 3 3 3 2-12 2-12 2-12
250 8625 4 3 3 3 3 3 3 3
300 10350 4 4 4 3 3 3 3 3
350 12025 4 4 4 4 4 3 3 3
400 13800 5 4 4 4 4 4 4 3
500 17210 6 5 5 4 4 4 4 4
600 20700 6 6 5 5 5 4 4 4
700 24150 6 6 6 5 5 5 5 4
800 27600 6 6 6 6 6 5 5 5
NOTE Valve sizes (300 Flanges) given in inchesStandard Non-Return valve selections limited to a maximum 2 to 1 turndown(50 of full load) selections based on typical non-return valve sizing recommen-dations For final valve selection contact your C-B authorized representative Forhigh turndown applications see Boiler Book Section I3 Table I3-3 Indicates pressure drop of less than 75 psig All other selections are less than6 psig pressure drop
Boiler HP
OPERATINGPRESSURE
PSIG125 150 200 250 300 350 400 500 600 700 800
15 8 8 10 10 12 12 12 12 12 12 12
30 6 6 8 8 8 10 10 10 12 12 12
40 6 6 6 8 8 8 10 10 10 12 12
50 6 6 6 6 8 8 8 10 10 10 12
75 4 4 6 6 6 8 8 8 8 10 10
100 4 4 6 6 6 6 6 8 8 8 10
125 4 4 4 6 6 6 6 8 8 8 8
150 3 3 4 4 6 6 6 6 6 8 8
200 25 3 4 4 4 4 6 6 6 6 6
250 25 3 3 4 4 4 4 6 6 6 6
NOTES1 Steam nozzle sizes given in inches2 Recommended steam nozzle sizes based on 4000 to 5000 fpm steam velocity3 All standard steam nozzle sizes for 150 psig design pressure or greater are the sameas 125 psig operating pressure on the above table To increase or decrease the standardsize request the change with your local Cleaver-Brooks authorized representative4 Shaded area denotes special surge load baffles must be installed to avoid possible wa-ter carry-over5 For incremental operating pressures see Table I3-1 Steam Systems Fundamentals
Table A1-28 Recommended Steam Nozzle Size (for
4000 to 5000 fpm nozzle velocity)
Table A1-29 Recommended Non-Return Valve Size
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Model CBLE 125-800 HP Boilers
42
1 Shortest boiler room length (Dwg A) is obtained by allowing for possible future tube replacement (from front or rearof boiler) through a window or doorway Allowance is only made for minimum door swing at each end of the boilerThis arrangement provides sufficient aisle space at the front of the boiler but a ldquotightrdquo space condition at the rear
If space permits approximately 15 additional feet should be allowed at the rear for additional aisle and workingspace
2 Next shortest boiler room length (Dwg B) is obtained by allowing for possible future tube replacement from thefront of the boiler Allowance is only made for minimum door swing at the rear
If space permits approximately 15 additional feet should be allowed at the rear for additional aisle and workingspace
3 A slightly longer boiler room (Dwg C) is obtained by allowing for possible future tube replacement from the rear ofthe boiler Allowance for door swing at the front provides sufficient aisle and working space at the front
Figure A1-21 Boiler Room Length (Typical Layouts)
BOILER HP 125-200 250-350 400-800
Dimension A 82 93 102
Dimension B 115 141 171
NOTES1 Recommended Minimum Distance Between Boiler and Wall Dimen-
sion ldquoArdquo allows for a ldquoclearrdquo 42 aisle between the water col-umn on the boiler and the wall If space permits this aisle
should be widened 2 Recommended Minimum Distance Between BoilersDimension ldquoBrdquo between boilers allows for a ldquoclearrdquo aisle of42 - 125 -200 hp48 - 250-350 hp60 - 400-800 hpIf space permits this aisle should be widened
Figure A1-22 Boiler Room Width (Typical Layout)
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Model CBLE 125-800 HP Boilers
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Model CBLE 125-800 HP Boilers
19
BOILER HPFUEL
SERIES
HOT WATER STEAM
30 PSIG 125 PSIG 15 PSIG 150 PSIG 200 PSIG
125100 11200 11600 11300 12000 12600200 11400 11800 11500 12400 13000
700 11300 11700 11400 12300 12900
150
100 12300 12700 12400 13200 13900
200 12500 12900 12600 13500 14200
700 12300 12700 12400 13300 14000
200
100 14400 14800 14500 15500 16300
200 14500 14900 14600 15600 16400
700 14500 14900 14600 15600 16400
250
100 20700 21500 20800 22000 23800
200 21400 22200 21500 22800 24600
700 20900 21700 21000 22500 24300
300
100 23100 23900 23200 24800 26800
200 23500 24300 23600 25200 27200
700 23400 24200 23500 25000 27000
350
100 26200 27000 26300 27600 29100
200 26700 27500 26800 27800 29300
700 26400 27200 26500 27700 29200
400
100 33000 36970 33200 36270 39380
200 33300 37270 33500 36570 39680
700 33200 37170 33400 36470 39580
500
100 36600 40470 36810 39670 43480
200 36900 40780 37110 39970 43580
700 36800 40680 37010 39870 43280
600
100 41850 45905 42000 44725 49100
200 42150 46005 42300 45025 49400
700 42050 45915 42200 44925 49300
700800
100 49450 53000 49300 51850 57015
200 49750 53300 49600 52150 57315
700 49650 53200 49500 52050 57215
NOTES1 Weights shown are based on standard product offering for current listed boilers If units are of special design and construction actual weightwill be determined at time of shipment Shipment will then be made on shippers weight and count All weights are in US pounds
Table A1-13 Model CB-LE Boiler Weights
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Model CBLE 125-800 HP Boilers
20
VALVE
SETTING15 PSIG STEAM 100 PSIG STEAM 125 PSIG STEAM 150 PSIG STEAM 200 PSIG STEAM 250 PSIG STEAM 300 PSIG STEAM
BOILERHP
NO OF
VALVES-REQD
OUTLET
SIZE(IN)
NO OF
VALVES-REQD
OUTLET
SIZE(IN)
NO OF
VALVESREQD
OUTLET
SIZE(IN)
NO OF
VALVES-REQD
OUTLET
SIZE(IN)
NO OF
VALVES-REQD
OUTLET
SIZE(IN)
NO OF
VALVESREQD
OUTLET
SIZE(IN)
NO OF
VALVESREQD
OUTLET
SIZE(IN)
125 1 3 2 1-12 2(1) 1-12(1) 1-14
2(1) 1-12(1) 1-14
2(1) 1-14(1) 1
2 1 2 1
150 1 3 2(1) 2(1) 1-12
2 1-14 2(1) 1-12(1) 1-14
2(1) 1(1) 1-14
2 1 2 1
200 2 2-12 2 2 2 1-12 2 1-12 2(1) 1-12(1) 1-14
2 1-14 2(1) 1(1) 1-14
250 2(1) 2-12(1) 3
2(1) 2-12(1) 2
2(1)2(1)1-12
2(1) 2(1) 1-12
2(1)1-12(1)1-14
2(1) 1-12(1) 1-14
2 1-14
300 2 3 2(1) 2-12(1) 2
2 2 2(1) 2(1) 1-12
2 1-12 2(1)1-12(1)1-14
2(1) 1-12(1) 1-14
350 3(1) 2(2) 3
3(1) 2-12(2) 2
2(1)2(1)1-12
2 2 2(1) 1-12(1) 2
2 1-12 2(1) 1-12(1) 1-14
400 3(2) 3(1) 2-12
3(1) 2(2) 2-12
2(1)2(1)2-12
2(1) 2-12(1) 2
2(1) 1-12(1) 2
2(1) 2(1) 1-12
2 1-12
500 3 (3) 3 3 2-12 2 2-12 2(1) 2-12(1) 2
2(1) 2(1) 2-12
2(1) 2(1)1-12
2(1) 1-12(1) 2
600 4 3 4(3) 2-12(1) 2
3 2-12 2 2-12 2(1) 2(1) 2-12
2 2 2 2
700 5(3) 3(2) 2-12
5(3) 2-12(2) 2
3 2-12 3(2) 2-12(1) 2
2 2-12 2(1) 2(1) 2-12
2 2
800 5(3) 3(2) 2-12
5(3) 2-12(2) 2
4(3) 2-12(1) 2
3(2) 2-12(1) 2
2 2-12 2(1) 2(1) 2-12
2(1) 2(1) 2-12
NOTES Valve manufacturers are Kunkle Consolidated or Conbraco depending on availability This table revised 042012
Table A1-14 Steam Boiler Safety Valve Openings
VALVE
SETTING 30 PSIG HW 60 PSIG HW 100 PSIG HW 125 PSIG HW
BOILER HPNO OF
VALVESREQD
OUTLETSIZE(IN)
NO OFVALVESREQD
OUTLETSIZE(IN)
NO OFVALVESREQD
OUTLETSIZE(IN)
NO OFVALVESREQD
OUTLETSIZE(IN)
125 1 2-12 1 2 1 2 1 1-14
150 1 2-12 1 2-12 1 2 1 2
200 2(1) 2-12(1) 1-14
1 2-12 1 2 1 2
250 2 (1) 2(1) 2-12
1 2-12 1 2-12 1 2
300 2 2-12 2(1) 1(1) 2-12
1 2-12 1 2-12
350 3(2) 2-12(1) 1
2(1) 2-12(1) 2
1 2-12 1 2-12
400 3 (1) 2(2) 2-12 2 (1) 2(2) 2-12 2 (1) 1(1) 2-12 1 2-12
500 4 (1) 1(3) 2-12
2 2-12 2(1) 2-12(1) 1-14
2(1) 1(1) 2-12
600 4(3) 2-12(1) 2
3(1) 1-1(2) 2-12
2(1) 2(1) 2-12
2(1) 2-12(1) 1-14
700 amp 800 5 (1) 1(4) 2-12
3(1) 2(2) 2-12
2 2-12 2(1) 2-12(1) 2
NOTES Hot water relief valves are Kunkle 537
Table A1-15 Hot Water Boiler Relief Valve Openings
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Model CBLE 125-800 HP Boilers
21
BOILER HP A B C D E F G X1 X2 X3
125 6 9 112 39-12 57-12 4 44-12 10 9-34 22-12
150 6 9 136 39-12 57-12 4 44-12 10 9-34 22-12
200 6 9 167 39-12 57-12 4 44-12 10 9-34 22-12
250 6 12 131 46 70 4 56 10 22 22-12
300 6 12 158 46 70 4 56 10 22 22-12
350 6 12 188 46 70 4 56 10 22 22-12
NOTE
All numbers in table are in inches
6-inch high mounting piers recommended for use beneath the boiler base frame The use of these piers provides increased inspection
accessibility to the piping beneath the boiler and added height for washing down the area beneath the boiler
Figure A1-7 Space Required to Open Rear Head on Model CB-LE Boilers Equipped with Davits
BOILER HPDIMENSIONS (INCHES)
A B C D E
CB-125 THRU CB-200 33 55 45 68 32
CB-250 THRU CB-350 42 69 58 86 43
CB-400 THRU CB-800 51 88 71 109 53
Figure A1-8 Model CB-LE Boiler Mounting Piers (60rdquo and 78rdquo)
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Model CBLE 125-800 HP Boilers
22
BOILER HP A B C D E F G
400 6 14 134 50 78 6-12 58-78
500 6 14 155 50 78 6-12 58-78
600 6 14 187 50 78 6-12 58-78
700-800 6 14 220 50 78 6-12 58-78
NOTE1 All numbers in table are in inches2 6-inch high mounting piers recommended for use beneath the boiler base frame The use of these piers provides in-
creased inspection accessibility to the piping beneath the boiler and added height for washing down the area beneaththe boiler
Figure A1-9 Model CB-LE Boiler Mounting Piers (96rdquo)
CBLE 250-350HP
CBLE 400-800HP
Motor HP Hole Number
75 1
15 1
25 2
40 3
Motor HP Hole Number
10 1
20 1
30 250 2
75 3
Figure A1-10 Front Davit Support
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Model CBLE 125-800 HP Boilers
23
BOILERHP
VIEW
ALL DIMENSIONS IN INCHES
A B C D E
125 All B 80-14 29-34 70-12 10 3
150 All B 80-14 29-34 83-12 10 3
200 All B 80-14 29-34 114-12 10 3
250Steam B 99 36 72 10 3
Hot Water B 99 36 81 10 3
300
Steam B 99 36 99 10 3
Hot Water B 99 36 108 10 3
350Steam B 99 36 129 10 3
Hot Water B 99 36 138 10 3
400Steam B 119 35-34 78 11 3
Hot Water B 119 35-34 78 11 3
500Steam B 119 35-34 99 11 3
Hot Water B 119 35-34 99 11 3
600Steam B 119 35-34 131 11 3
Hot Water B 119 35-34 131 11 3
700 amp 800Steam B 119 35-34 164 11 3
Hot Water B 119 35-34 164 11 3
NOTE A B and C dimensions may vary by 12 inch
Figure A1-11 Lifting Lug Location Model CB-LE Boilers
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Model CBLE 125-800 HP Boilers
24
PERFORMANCE DATA
The Low Emission Option provides NOx reduction at current published andpredicted fuel-to-steam efficiencies
Specifying BoilerEfficiency
Cleaver-Brooks offers an industry leading fuel-to-steam boiler efficiency guaranteefor Model CB-LE Firetube Boilers The guarantee is based on the fuel-to-steam
efficiencies shown in the efficiency tables and the following conditions Theefficiency percent number is only meaningful if the specific conditions of theefficiency calculations are clearly stated in the specification (see Cleaver-Brookspublication CB-7768 for a detailed description of efficiency calculations)
When specifying the efficiencies in the tables be sure to include the specificguarantee conditions to maximize the effectiveness of your efficiency specification Ifyou have any questions regarding the efficiency specifications please contact yourlocal Cleaver-Brooks authorized representative
EfficiencySpecification
The boiler manufacturer shall guarantee that at the time of startup the boiler willachieve fuel-to-steam efficiency (as shown in Table A1-16 and Table A1-17) at100 firing rate (add efficiency guarantees at 25 50 and 75 of rating if
required) If the boiler(s) fail to achieve the corresponding guaranteed efficiency aspublished the boiler manufacturer will rebate to the ultimate boiler owner tenthousand dollars ($10000) for every full efficiency point (10) that the actualefficiency is below the guaranteed level
The specified boiler efficiency is based on the following conditions
1 Fuel specification used to determine boiler efficiency
bull Natural Gas
Carbon (wt) = 6998Hydrogen (wt) = 2231Sulfur (wt) = 00
Heating value Btulb = 21830bull No 2 Oil
Carbon (wt) = 858Hydrogen (wt) = 127Sulfur (wt) = 02Heating value Btulb = 19420
No 6 Oil
Carbon (wt) = 866Hydrogen (wt) = 109Sulfur (wt) = 209Heating value Btulb = 18830
2 Efficiencies are based on ambient air temperature of 80 degF relative humidity of30 and 15 excess air in the exhaust flue gas
3 Efficiencies are based on manufacturerrsquos published radiation and convectionlosses (For Cleaver-Brooks radiation and convection losses see BoilerEfficiency Facts Guide publication number CB-7767)
4 Any efficiency verification testing will be based on the stack loss method
For efficiencies and stack temperatures at operating pressures not listed followthese procedures
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Model CBLE 125-800 HP Boilers
25
When the operating steam pressure is between 10 psig and 125 psig interpolatethe values from the efficiency tables
When the operating steam pressure is above 125 psig estimated efficiency can becalculated as follows
Example
Boiler 350 hpFuel natural gas
Operating steam pressure 200 psig
Find the fuel-to-steam efficiency at 100 firing rate From Table A1-16 for a 350hp boiler operating at 100 firing rate and an operating steam pressure of 125psig the efficiency is 825
Using Figure A1-12 note that the stack temperature increases 36 degF at the higheroperating pressure To estimate boiler efficiency use this rule of thumb For every40 degF increase in stack temperature efficiency decreases by 1 Since the stacktemperature rise is 36 degF the decrease in the boiler efficiency at 200 psig operatingpressure is calculated as follows 3640 =9 Therefore the boiler efficiency at200 psig operating pressure is 825 -9 = 816
Emissions The emission data included in this section consists of typical emission levels forModel CB boilers equipped with 60 30 25 and 20 ppm LE Options when firingnatural gas and No 2 oil
Notice
The data in Table A1-18 and Table A1-19 represent typical emission levels only
Guaranteed emission levels are available from your local Cleaver-Brooks authorized
representative
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Model CBLE 125-800 HP Boilers
26
BOILER
HP
OPERATING PRESSURE = 10 psig OPERATING PRESSURE = 125 psig
OF LOAD OF LOAD
25 50 75 100 25 50 75 100
125 833 836 834 832 804 809 810 810
150 844 846 845 843 815 820 820 821
200 850 853 851 849 822 827 827 827
250 850 847 840 833 820 820 816 813
300 853 853 846 839 826 827 822 819
350 853 857 852 845 826 832 828 825
400 845 847 846 844 818 822 824 822
500 855 857 855 852 828 832 833 831
600 857 860 858 856 829 835 836 835
700 857 862 860 857 830 836 836 836
800 858 861 859 856 831 836 837 835
Table A1-16 Predicted Fuel-to-Steam Efficiencies - Natural Gas
Figure A1-12 Predicted Stack Temperature Increase for Pressure Greater Than 125 psig
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Model CBLE 125-800 HP Boilers
27
Table A1-18 CB-LE Boilers - Natural Gas Emission Levels
POLLUTANT
ESTIMATED LEVEL
60 ppm 30 ppm 25 ppm 20 ppm 15 ppm 9 ppm
CO ppmA
lbMMBtu
50150B
004011
50150B
004011
50150B
004011
50150B
004011
50
004
50
004
NOx ppmA
lbMMBtu
60
007
30
0035
25
003
20
0024
15
0018
9
0011
SOx ppmA
lbMMBtu
1
0001
1
0001
1
0001
1
0001
1
0001
1
0001
HCVOC5 ppmA
lbMMBtu
10
0004
10
0004
10
0004
10
0004
10
0004
10
0004
PM ppmA
lbMMBtu
-
001
-
001
-
001
-
001
-
001
-
001
A ppm levels are given on a dry volume basis and corrected to 3 oxygen (15 excess air)
B CO emission for 60 30 25 amp 20 ppm system is 50 ppm (004 lbMMBtu) when boiler is operating above 50 of rated capacity
CO emission is 150 ppm (011 lbMMBtu) when boiler is operating below 50 of rated capacity
Table A1-17 Predicted Fuel-to-Steam Efficiencies - No 2 Oil
BOILER
HP
OPERATING PRESSURE = 10 psig OPERATING PRESSURE = 125 psig
OF LOAD OF LOAD
25 50 75 100 25 50 75 100
125 867 869 867 866 837 842 843 843
150 878 880 878 876 848 853 853 854
200 884 887 884 882 856 860 860 860
250 883 881 874 867 853 853 849 847
300 886 887 880 873 859 860 855 852
350 886 890 885 878 859 866 861 858
400 879 881 879 876 851 855 856 855
500 889 890 889 886 861 865 866 864
600 890 894 892 890 862 868 869 868
700 891 895 893 891 863 869 870 869
800 892 895 893 890 864 869 870 868
Table A1-19 CB-LE Boilers - No 2 Oil Emission Levels
POLLUTANTESTIMATED LEVEL
60 ppm LE Option 30 25 20 ppm LE Option 15 ppm 9 ppm
CO ppmA
lbMMBtu
50
0039
50
0039
50
0039
50
0039
NOx ppmA
lbMMBtu140
018690
012085
011370
0093
SOx ppmA
lbMMBtu
278
052
278
052
278
052
278
052
HCVOCs ppmA
lbMMBtu
4
0002
4
0002
4
0002
4
0002
PM ppmA
lbMMBtu
-
0025
-
0025
-
0025
-
0025
A ppm levels are given on a dry volume basis and corrected to 3 oxygen (15 excess air)
BASED ON THE FOLLOWING CONSTITUENT LEVELS
Fuel-bound Nitrogen content = 0015 by weight
Sulfur content = 05 by weight
Ash content = 001 by weight
09-09
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Model CBLE 125-800 HP Boilers
28
ENGINEERING DATA
Sound Level Table A1-20 gives a summary of predicted sound pressure levels for Model CBboilers with 30 ppm LE Options Contact your local Cleaver-Brooks authorizedrepresentative for sound levels or other LE Options
Units - The units for the sound level tables are dbA (decibels measured on the A-weighted scale) in reference to 00002 microbars (20 micro-Newtons per square
meter) Their reference are standardly used in specifying and reporting soundpressure levels on industrial equipment
Test Method - The sound pressure levels in the above tables were obtained fromtests in accordance with the ldquoABMA Test Code for the Measurement of Sound fromPackaged Boilersrdquo In accordance with this code the sound pressure levels reportedwere measured on the boiler centerline 4-12 feet vertically above the bottom of thebase rails and 3 feet horizontally in front of the end of the blower motor or frontsurface of the electrical cabinet
Sound Level Meter - The sound level meter used complies with ANSI S14 Type 1(Precision) The readings are taken with the meter set for slow response andcorrected for background levels
Sound Pressure - The large size boilers the need for auxiliary equipment and thenecessary interconnecting piping make it impractical (and sometimes impossible) toprovide a boiler testing environment which is suitable for taking the data needed todevelop Sound Pressure Power levels
Typical Values - Sound pressure levels (dbA) for the same boiler will vary betweenboiler rooms Sound levels will vary with motor type NOx levels and altitudes Inaddition variations will occur between different people using different sound meterson the same boiler And finally no two boilers can be expected to give precisely thesame sound levels For these reasons we can only predict but not guarantee soundlevels (dbA)
BOILER HP 125 150 200 250 300 350 400 500 600 700 800
HFO dbA 84 84 84 83 84 85 84 85 85 88 90
LFO dbA 82 82 83 81 82 83 82 83 83 84 89
HFG dbA 82 82 83 82 83 84 83 83 85 87 90
LFG dbA 81 81 82 81 82 83 81 81 82 84 88
NOTES1 Sound pressure levels measured on boilers operating in various locations and ex-
pressed in dbA are as shown2 Based on standard altitude fans and fan motors 60 Hz3 Contact your local Cleaver-Brooks authorized representative for sound levels of 60 25or 20 ppm LE Options
ABBREVIATIONS
HF = High Fire LF = Low Fire O = Oil G = Gas
Table A1-20 Model CBLE Predicted Sound Levels 30 ppm NOx Systemss
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Model CBLE 125-800 HP Boilers
29
Gas-Fired Burners Table A1-21 shows gas pressure with standard over- and undersized gas trains
Table A1-22 shows minimum required gas pressure altitude conversion
Figure A1-13 shows standard gas train sizes and locations for Model CB FiretubeBoilers
Figure A1-14 shows typical gas train piping layouts for multiple boiler applications
Figure A1-15 shows standard gas train components
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Model CBLE 125-800 HP Boilers
30
Table A1-21 Standard Undersize and Oversize Gas Trains
CBLE
BOILER HP GAS TRAINSIZE
UPSTREAMVALVE
DOWNSTREAMVALVE
EMISSIONS LEVEL 09 ppm 15 ppm 20 ppm 30 ppm 60 ppm UC
125 HP 15 in BB BB 33 - 49 psi 33 - 49 psi 08 - 50 psi 07 - 50 psi 07 - 50 psi 07 - 50 ps
125 HP 15 in PC PC 34 - 50 psi 34 - 50 psi 09 - 50 psi 08 - 50 psi 08 - 50 psi 08 - 50 ps
125 HP 20 in BB BB 31 - 33 psi 31 - 33 psi 06 - 08 psi 06 - 07 psi 05 - 07 psi 05 - 07 ps
125 HP 20 in PC PC 31 - 34 psi 31 - 34 psi 06 - 09 psi 06 - 08 psi 06 - 08 psi 05 - 08 ps
125 HP 25 in PC PC 30 - 31 psi 30 - 31 psi 04 - 06 psi 04 - 06 psi 04 - 05 psi 04 - 05 ps
125 HP 30 in PC PC 29 - 30 psi 29 - 30 psi 04 - 04 psi 04 - 04 psi 04 - 04 psi 03 - 04 ps
125 HP 40 in PC PC 29 - 29 psi 29 - 29 psi 04 - 04 psi 03 - 04 psi 03 - 04 psi 03 - 03 ps
150 HP 15 in BB BB 37 - 55 psi 39 - 58 psi 10 - 47 psi 09 - 50 psi 09 - 50 psi 09 - 50 ps
150 HP 15 in PC PC 38 - 57 psi 40 - 60 psi 11 - 42 psi 11 - 50 psi 10 - 50 psi 10 - 50 ps
150 HP 20 in BB BB 34 - 37 psi 36 - 39 psi 07 - 10 psi 06 - 09 psi 06 - 09 psi 06 - 09 ps
150 HP 20 in PC PC 34 - 38 psi 36 - 40 psi 07 - 11 psi 07 - 11 psi 07 - 10 psi 06 - 10 ps
150 HP 25 in PC PC 32 - 34 psi 34 - 36 psi 05 - 07 psi 04 - 06 psi 04 - 06 psi 04 - 06 ps
150 HP 30 in PC PC 32 - 32 psi 34 - 34 psi 04 - 05 psi 04 - 04 psi 04 - 04 psi 03 - 04 ps
150 HP 40 in PC PC 31 - 32 psi 33 - 34 psi 04 - 04 psi 03 - 04 psi 03 - 04 psi 03 - 03 ps
200 HP 15 in BB BB 46 - 69 psi 50 - 75 psi 16 - 50 psi 15 - 50 psi 15 - 50 ps
200 HP 15 in PC PC 48 - 72 psi 52 - 78 psi 18 - 50 psi 17 - 50 psi 17 - 50 ps
200 HP 20 in BB BB 41 - 46 psi 45 - 50 psi 10 - 16 psi 10 - 15 psi 10 - 15 ps
200 HP 20 in PC PC 41 - 48 psi 45 - 52 psi 11 - 18 psi 11 - 17 psi 10 - 17 ps
200 HP 25 in PC PC 38 - 41 psi 42 - 45 psi 07 - 10 psi 07 - 10 psi 06 - 10 ps
200 HP 30 in PC PC 36 - 38 psi 40 - 42 psi 06 - 07 psi 05 - 07 psi 05 - 06 ps
200 HP 40 in PC PC 36 - 36 psi 40 - 40 psi 05 - 06 psi 05 - 05 psi 04 - 05 ps
250 HP 15 in BB BB 41 - 62 psi 44 - 67 psi 24 - 50 psi 24 - 27 psi 24 - 26 psi 23 - 26 ps
250 HP 15 in PC PC 45 - 67 psi 48 - 72 psi 28 - 50 psi 27 - 28 psi 27 - 27 psi 27 - 27 ps
250 HP 20 in BB BB 33 - 38 psi 37 - 41 psi 16 - 24 psi 16 - 24 psi 16 - 24 psi 15 - 23 ps
250 HP 20 in PC PC 34 - 40 psi 37 - 43 psi 17 - 28 psi 17 - 27 psi 16 - 27 psi 16 - 27 ps
250 HP 25 in PC PC 29 - 33 psi 32 - 37 psi 11 - 16 psi 11 - 16 psi 11 - 16 psi 10 - 15 ps
250 HP 30 in PC PC 27 - 29 psi 31 - 32 psi 09 - 11 psi 09 - 11 psi 09 - 11 psi 09 - 10 ps
250 HP 40 in PC PC 26 - 27 psi 29 - 31 psi 08 - 09 psi 08 - 09 psi 08 - 09 psi 08 - 09 ps
300 HP 15 in - 20 in BB BB 55 - 83 psi 57 - 85 psi 30 - 50 psi 30 - 36 psi 30 - 35 psi 30 - 35 ps
300 HP 15 in - 20 in PC PC 58 - 87 psi 60 - 90 psi 33 - 50 psi 33 - 37 psi 33 - 36 psi 33 - 36 ps
300 HP 20 in BB BB 46 - 55 psi 47 - 57 psi 21 - 30 psi 21 - 30 psi 20 - 30 psi 20 - 30 ps
300 HP 20 in PC PC 47 - 58 psi 48 - 60 psi 22 - 33 psi 22 - 33 psi 21 - 33 psi 21 - 33 ps
300 HP 30 in PC PC 39 - 46 psi 40 - 47 psi 13 - 21 psi 13 - 21 psi 12 - 20 psi 12 - 20 ps
300 HP 40 in PC PC 37 - 39 psi 39 - 40 psi 11 - 13 psi 11 - 13 psi 10 - 12 psi 10 - 12 ps
350 HP 15 in - 20 in BB BB 64 - 90 psi 62 - 90 psi 42 - 50 psi 42 - 50 psi 41 - 50 psi 41 - 50 ps
350 HP 15 in - 20 in PC PC 68 - 90 psi 66 - 90 psi 46 - 50 psi 46 - 50 psi 45 - 50 psi 45 - 50 ps
350 HP 20 in BB BB 54 - 64 psi 53 - 62 psi 32 - 42 psi 32 - 42 psi 32 - 41 psi 31 - 41 ps
350 HP 20 in PC PC 56 - 68 psi 54 - 66 psi 34 - 46 psi 34 - 46 psi 33 - 45 psi 33 - 45 ps
350 HP 25 in PC PC 43 - 54 psi 42 - 53 psi 21 - 32 psi 21 - 32 psi 20 - 32 psi 20 - 31 ps
350 HP 30 in PC PC 40 - 43 psi 38 - 42 psi 17 - 21 psi 17 - 21 psi 17 - 20 psi 16 - 20 ps
350 HP 40 in PC PC 37 - 40 psi 36 - 38 psi 15 - 17 psi 15 - 17 psi 14 - 17 psi 14 - 16 ps
400 HP 15 in - 20 in BB BB 69 - 90 psi 69 - 90 psi 46 - 50 psi 46 - 50 psi 45 - 50 psi 45 - 50 ps
400 HP 15 in - 20 in PC PC 74 - 90 psi 75 - 90 psi 51 - 87 psi 51 - 77 psi 51 - 77 psi 51 - 77 ps
400 HP 20 in BB BB 55 - 69 psi 56 - 69 psi 32 - 46 psi 32 - 46 psi 32 - 45 psi 32 - 45 ps
400 HP 20 in PC PC 57 - 74 psi 58 - 75 psi 34 - 50 psi 34 - 50 psi 34 - 50 psi 34 - 50 ps
400 HP 25 in PC PC 41 - 55 psi 42 - 56 psi 18 - 32 psi 18 - 32 psi 18 - 32 psi 18 - 32 ps
400 HP 30 in PC PC 37 - 41 psi 38 - 42 psi 13 - 18 psi 13 - 18 psi 13 - 18 psi 13 - 18 ps
400 HP 40 in PC PC 34 - 37 psi 35 - 38 psi 11 - 13 psi 10 - 13 psi 10 - 13 psi 10 - 13 ps
500 HP 20 in - 25 in BB PC 58 - 76 psi 58 - 76 psi 46 - 50 psi 46 - 50 psi 45 - 50 psi 45 - 50 ps
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Model CBLE 125-800 HP Boilers
31
BB = Butter Ball PC = Plug Cock
NOTE In cases where the gas train increases in size after the regulating valve two diameters are listed The first number is the customer connection size
500 HP 20 in - 25 in PC PC 60 - 83 psi 60 - 83 psi 48 - 50 psi 47 - 50 psi 47 - 50 psi 47 - 50 psi
500 HP 25 in PC PC 39 - 58 psi 39 - 58 psi 27 - 46 psi 27 - 46 psi 27 - 45 psi 26 - 45 psi
500 HP 30 in PC PC 33 - 39 psi 33 - 39 psi 20 - 27 psi 20 - 27 psi 20 - 27 psi 20 - 26 psi
500 HP 40 in PC PC 28 - 33 psi 28 - 33 psi 16 - 20 psi 16 - 20 psi 15 - 20 psi 15 - 20 psi
600 HP 20 in - 25 in BB PC 80 - 90 psi 80 - 90 psi 65 - 90 psi 65 - 90 psi 64 - 89 psi 63 - 88 psi
600 HP 20 in - 25 in PC PC 82 - 90 psi 82 - 90 psi 67 - 100 psi 67 - 100 psi 66 - 99 psi 66 - 99 psi
600 HP 25 in PC PC 54 - 80 psi 54 - 80 psi 39 - 50 psi 38 - 50 psi 38 - 50 psi 37 - 50 psi
600 HP 25 in - 30 in PC PC 52 - 54 psi 52 - 54 psi 37 - 39 psi 36 - 38 psi 35 - 38 psi 35 - 37 psi
600 HP 30 in PC PC 43 - 52 psi 43 - 52 psi 28 - 37 psi 27 - 36 psi 27 - 35 psi 26 - 35 psi
600 HP 40 in PC PC 37 - 43 psi 37 - 43 psi 22 - 28 psi 21 - 27 psi 20 - 27 psi 20 - 26 psi
700 HP 20 in - 30 in BB PC 110 - 150 psi 107 - 150 psi 87 - 131 psi 86 - 130 psi 86 - 129 psi 86 - 128 psi
700 HP 20 in - 30 in PC PC 113 - 150 psi 110 - 150 psi 90 - 135 psi 89 - 134 psi 89 - 134 psi 89 - 133 psi
700 HP 25 in - 30 in PC PC 71 - 90 psi 68 - 90 psi 48 - 50 psi 47 - 50 psi 47 - 50 psi 46 - 50 psi
700 HP 30 in PC PC 60 - 71 psi 57 - 68 psi 36 - 48 psi 36 - 47 psi 35 - 47 psi 35 - 46 psi
700 HP 40 in PC PC 51 - 60 psi 48 - 57 psi 28 - 36 psi 27 - 36 psi 27 - 35 psi 26 - 35 psi
800 HP 20 in - 30 in BB PC 108 - 150 psi 107 - 150 psi 106 - 150 psi
800 HP 20 in - 30 in PC PC 112 - 150 psi 111 - 150 psi 110 - 150 psi800 HP 25 in - 30 in PC PC 61 - 90 psi 60 - 100 psi 59 - 100 psi
800 HP 30 in PC PC 48 - 61 psi 47 - 50 psi 46 - 50 psi
800 HP 40 in PC PC 35 - 48 psi 34 - 47 psi 34 - 46 psi
Standard Gas Train size is highlighted
Table A1-21 Standard Undersize and Oversize Gas Trains (Continued)
CBLE
BOILER HP GAS TRAINSIZE
UPSTREAMVALVE
DOWNSTREAMVALVE
EMISSIONS LEVEL 09 ppm 15 ppm 20 ppm 30 ppm 60 ppm UC
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Model CBLE 125-800 HP Boilers
32
ALTITUDE(FT)
CORRECTIONFACTOR
ALTITUDE(FT)
CORRECTIONFACTOR
1000 104 6000 1252000 107 7000 130
3000 111 8000 135
4000 116 9000 140
5000 121 - -
To obtain minimum required gas pressure at altitudesabove 700 feet multiply the pressure by the listed factorsInches WC x 0577 = ozsq-inOzsq-in x 1732 = Inches WCInches WC x 00361= psigOzsq-in x 00625 = psigPsig x 2771 = Inches WCPsig x 160 = Ozsq-in
Table A1-22 Minimum Required Regulated Gas Pressure
Altitude Conversion
BOILERHP
TYPE OF GAS AND HEAT CONTENT
NATURAL GAS1000 (Btucu-ft)
PROPANE GAS2550 (Btucu-ft)
125 5103 2000
150 6124 2402
200 8165 3202
250 10206 4002
300 12247 4802
350 14280 5600
400 16329 6404
500 20415 8006
600 24494 9605
700 28576 11206
800 32659 12807
Table A1-23 Maximum Gas Consumption (CFH)
for Natural Gas and Propane Vapor
BOILER
HP
MODEL CB
CONNECTION SIZE
(IN NPT)
LOCATIONDIMENSION
ldquoArdquo (IN)
125-200 1-12 52
250-350 2 56
400 2 58
500 2-12 60
600 2-12 - 3 71
700-800 3 65
Figure A1-13 Standard Gas Train Connection Size and Location
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Model CBLE 125-800 HP Boilers
33
Oil-Fired Burners Fuel oil consumption information is shown on the boiler rating sheets in theDimensions and Rating Section
Figure A1-16 shows the oil connection sizes and locations for Model CB Boilersfiring No 2 oil
Figure A1-17 through Figure A1-18 show typical oil systems and layouts
Figure A1-19 and Figure A1-20 show the detail of an oil transfer tank (day tank)typically utilized to provide a storage reservoir between the oil system supply pumpand the boiler oil pump
General BoilerInformation
Table A1-24 shows blowdown tank sizing information
Table A1-25 provides heating surface information
Table A1-26 provides steam volume and disengaging area information
Table A1-27 provides recommended steam nozzle sizes
Table A1-28 provides recommended non-return valve sizes
Boiler RoomInformation
Figure A1-21 shows typical boiler room length requirements
Figure A1-22 shows typical boiler room width requirements
Figure A1-23 shows typical breeching arrangements
Stack SupportCapabilities
All standard Cleaver-Brooks Firetube Boilers with an LE option can support up to2000 lbs without additional support
LE Boilers 250 hp through 800 hp can be reinforced to support 3000 lbs
StackBreechingSize Criteria
The design of the stack and breeching must provide the required draft at each boilerflue gas outlet Proper draft is critical to burner performance
Although constant pressure at the flue gas outlet of the Model CB-LE is not requiredit is necessary to size the stackbreeching to limit flue gas pressure variation Theallowable pressure range is ndash025 WC to +025 WC
For additional information please review Section I4 General Engineering Data(Stacks) and Section F Stacks Stack and breeching sizes should always be providedby a reputable stack supplier who will design the stack and breeching system basedon the above criteria Your local Cleaver-Brooks authorized representative is capableof assisting in your evaluation of the stackbreeching design
Boiler RoomCombustion Air
When determining boiler room air requirements the size of the room air flow andvelocity of air must be reviewed as follows
1 Size (area) and location of air supply openings in boiler room
A Two (2) permanent air supply openings in the outer walls of the boiler room
are recommended Locate (1) at each end of the boiler room preferablybelow a height of 7 feet This allows air to sweep the length of the boiler
B Air supply openings can be louvered for weather protection but they shouldnot be covered with fine mesh wire as this type of covering has poor air flowqualities and is subject to clogging by dust or dirt
C A vent fan in the boiler room is not recommended as it could create a slightvacuum under certain conditions and cause variations in the quantity ofcombustion air This can result in unsatisfactory burner performance
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Model CBLE 125-800 HP Boilers
34
D Under no condition should the total area of the air supply openings be lessthan (1) square foot
E Size the openings by using the formulaArea (sq-ft) = CFMFPM
2 Amount of air required (cfm)
A Combustion Air = Rated bhp x 8 cfmbhp
B Ventilation Air = Maximum bhp x 2 cfmbhp
C Total recommended air = 10 cfmbhp - up to 1000 feet elevation Add 3percent more per 1000 feet of added elevation
3 Acceptable air velocity in Boiler Room (fpm)
A From floor to (7) foot height - 250 fpm
B Above (7) foot height - 500 fpm
Example Determine the area of the boiler room air supply openings for (1) 300 hpboiler at 800 feet altitude The air openings are to be 5 feet above floor level
bull Air required 300 x 10 = 3000 cfm (from 2B above)
bull Air velocity Up to 7 feet = 250 fpm (from 3 above)
bull Area Required Area = cfm = 3000250 = 12 sq-ft total
bull AreaOpening 122 = 6 sq-ftopening (2 required)
Notice
Consult local codes which may supersede these requirements
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Model CBLE 125-800 HP Boilers
35
This figure illustrates the basic gas valve arrangement on Cleaver-BrooksModel CB boiler and shows the contractors connection point The valves andcontrols between the contractor connection point and the gas main in thestreet are representative of a typical installation Actual requirements mayvary depending on local codes or local gas company requirements which
should be investigated prior to preparation of specifications and prior to con-struction
A Utilities service valveB Utilities service regulatorC Gas meterD Piping from meter to boiler
The size of the gas line from the meter to the gas pressure regulator at theboiler can be very important if gas pressures are marginal The gas line sizingis dependent on
1 Gas pressure at outlet of gas meter (C)2 Rate of gas flow required CFH3 Length of pipe run (D)4 Pressure required at contractor connection point
The local gas utility will advise the pressure that is available at the outlet oftheir meter
Figure A1-14 Typical Gas Piping Layout
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Model CBLE 125-800 HP Boilers
36
5
6
S
1
3
42
PILOT GAS LINE
S
S
MAIN GAS LINE
M M
ToBurner
GasSupply
11
10
97
12138
14 15
FLOW
FLOW
Figure A1-15 Model CB-LE Gas Train Components
BOILER
HP
MODEL CB
SUPPLYANDRE-
TURNCONN SIZES
(IN)(NPT)
A(IN)
RECOMMENDED OIL LINEA
SIZES(STANDARD PIPE)
(IN - IPS)
STOR-AGE
TANK TOBOILER
OR PUMPCONNECT
PUMPTO
BOILER
RE-TURN
LINE TOTANK
125150 200
34 12-12 1 1 1
250300350
34 34 1 1 1
400500600
34 11-34 1 1 1
700800
1 11-34 1 1 1
NOTE See No 2 Oil Line Sizing Instruction for systems with other conditions A For suction line condition with a maximum of 10 Feet of lift and a
total of 100 feet of suction line
Figure A1-16 No2 Oil Connection Size Location and Recommended Line Sizes
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Model CBLE 125-800 HP Boilers
37
Figure A1-17 No 2 Oil Piping Single Boiler
Installation Remote Oil Pump
Figure A1-18 No 2 Oil Piping Multiple Boiler
Installation Remote Oil Pumps
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
38
Figure A1-19 No 2 Oil Piping Multiple Boiler
Installation
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Model CBLE 125-800 HP Boilers
39
Figure A1-20 No 2 Oil Piping Typical Arrangement
Table A1-24 Model CB-LE Blowdown
Tank Sizing
BOILER HP WATER (GAL)
125 97
150 118
200 145
250 146
300 176
350 210
400 177
500 209
600 250
700 800 296
NOTE Quantity of water removed from boiler by lowering normal water line 4
BOILER
HP
HEATING SURFACE (SQ-FT)
FIRESIDE WATERSIDE
125 625 679
150 750 820
200 1000 1092
250 1250 1346
300 1500 1623
350 1750 1932
400 2000 2151
500 2500 2691
600 3000 3262
700 800 3500 3810
Table A1-25 Heating Surface Model CB-LE
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Model CBLE 125-800 HP Boilers
40
BOILER HPSTEAM VOLUME CU-FT
STEAM DISENGAGING AREASQ-IN
HIGH PRESSUREA LOW PRESSUREB HIGH PRESSUREA LOW PRESSUREB
125 254 366 5371 5887
150 307 443 6511 7138
200 377 544 7985 8752
250 492 706 7980 8695
300 595 853 9651 10516
350 709 1017 11507 12538
400 721 979 9793 10593
500 837 1137 11376 12303
600 1015 1378 13787 14911
700-800 1198 1627 16273 17600
NOTE Based on normal water levelA Based on 150 psig design pressureB Based on 15 psig design pressure
Table A1-26 Steam Volume and Disengaging Area
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Model CBLE 125-800 HP Boilers
41
BOILERHP
BOILERCAPACITY(LBSHR)
OPERATING PRESSURES (PSIG)
50 75 100 125 150 175 200 250
100 3450
2-12 2-12 NA NA NA NA NA NA
125 4313 3 2-12 2-12 2-12 NA NA NA NA
150 5175 3 3 2-12 2-12 2-12 2-12 NA NA
200 6900 3 3 3 3 3 2-12 2-12 2-12
250 8625 4 3 3 3 3 3 3 3
300 10350 4 4 4 3 3 3 3 3
350 12025 4 4 4 4 4 3 3 3
400 13800 5 4 4 4 4 4 4 3
500 17210 6 5 5 4 4 4 4 4
600 20700 6 6 5 5 5 4 4 4
700 24150 6 6 6 5 5 5 5 4
800 27600 6 6 6 6 6 5 5 5
NOTE Valve sizes (300 Flanges) given in inchesStandard Non-Return valve selections limited to a maximum 2 to 1 turndown(50 of full load) selections based on typical non-return valve sizing recommen-dations For final valve selection contact your C-B authorized representative Forhigh turndown applications see Boiler Book Section I3 Table I3-3 Indicates pressure drop of less than 75 psig All other selections are less than6 psig pressure drop
Boiler HP
OPERATINGPRESSURE
PSIG125 150 200 250 300 350 400 500 600 700 800
15 8 8 10 10 12 12 12 12 12 12 12
30 6 6 8 8 8 10 10 10 12 12 12
40 6 6 6 8 8 8 10 10 10 12 12
50 6 6 6 6 8 8 8 10 10 10 12
75 4 4 6 6 6 8 8 8 8 10 10
100 4 4 6 6 6 6 6 8 8 8 10
125 4 4 4 6 6 6 6 8 8 8 8
150 3 3 4 4 6 6 6 6 6 8 8
200 25 3 4 4 4 4 6 6 6 6 6
250 25 3 3 4 4 4 4 6 6 6 6
NOTES1 Steam nozzle sizes given in inches2 Recommended steam nozzle sizes based on 4000 to 5000 fpm steam velocity3 All standard steam nozzle sizes for 150 psig design pressure or greater are the sameas 125 psig operating pressure on the above table To increase or decrease the standardsize request the change with your local Cleaver-Brooks authorized representative4 Shaded area denotes special surge load baffles must be installed to avoid possible wa-ter carry-over5 For incremental operating pressures see Table I3-1 Steam Systems Fundamentals
Table A1-28 Recommended Steam Nozzle Size (for
4000 to 5000 fpm nozzle velocity)
Table A1-29 Recommended Non-Return Valve Size
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Model CBLE 125-800 HP Boilers
42
1 Shortest boiler room length (Dwg A) is obtained by allowing for possible future tube replacement (from front or rearof boiler) through a window or doorway Allowance is only made for minimum door swing at each end of the boilerThis arrangement provides sufficient aisle space at the front of the boiler but a ldquotightrdquo space condition at the rear
If space permits approximately 15 additional feet should be allowed at the rear for additional aisle and workingspace
2 Next shortest boiler room length (Dwg B) is obtained by allowing for possible future tube replacement from thefront of the boiler Allowance is only made for minimum door swing at the rear
If space permits approximately 15 additional feet should be allowed at the rear for additional aisle and workingspace
3 A slightly longer boiler room (Dwg C) is obtained by allowing for possible future tube replacement from the rear ofthe boiler Allowance for door swing at the front provides sufficient aisle and working space at the front
Figure A1-21 Boiler Room Length (Typical Layouts)
BOILER HP 125-200 250-350 400-800
Dimension A 82 93 102
Dimension B 115 141 171
NOTES1 Recommended Minimum Distance Between Boiler and Wall Dimen-
sion ldquoArdquo allows for a ldquoclearrdquo 42 aisle between the water col-umn on the boiler and the wall If space permits this aisle
should be widened 2 Recommended Minimum Distance Between BoilersDimension ldquoBrdquo between boilers allows for a ldquoclearrdquo aisle of42 - 125 -200 hp48 - 250-350 hp60 - 400-800 hpIf space permits this aisle should be widened
Figure A1-22 Boiler Room Width (Typical Layout)
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Model CBLE 125-800 HP Boilers
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Model CBLE 125-800 HP Boilers
20
VALVE
SETTING15 PSIG STEAM 100 PSIG STEAM 125 PSIG STEAM 150 PSIG STEAM 200 PSIG STEAM 250 PSIG STEAM 300 PSIG STEAM
BOILERHP
NO OF
VALVES-REQD
OUTLET
SIZE(IN)
NO OF
VALVES-REQD
OUTLET
SIZE(IN)
NO OF
VALVESREQD
OUTLET
SIZE(IN)
NO OF
VALVES-REQD
OUTLET
SIZE(IN)
NO OF
VALVES-REQD
OUTLET
SIZE(IN)
NO OF
VALVESREQD
OUTLET
SIZE(IN)
NO OF
VALVESREQD
OUTLET
SIZE(IN)
125 1 3 2 1-12 2(1) 1-12(1) 1-14
2(1) 1-12(1) 1-14
2(1) 1-14(1) 1
2 1 2 1
150 1 3 2(1) 2(1) 1-12
2 1-14 2(1) 1-12(1) 1-14
2(1) 1(1) 1-14
2 1 2 1
200 2 2-12 2 2 2 1-12 2 1-12 2(1) 1-12(1) 1-14
2 1-14 2(1) 1(1) 1-14
250 2(1) 2-12(1) 3
2(1) 2-12(1) 2
2(1)2(1)1-12
2(1) 2(1) 1-12
2(1)1-12(1)1-14
2(1) 1-12(1) 1-14
2 1-14
300 2 3 2(1) 2-12(1) 2
2 2 2(1) 2(1) 1-12
2 1-12 2(1)1-12(1)1-14
2(1) 1-12(1) 1-14
350 3(1) 2(2) 3
3(1) 2-12(2) 2
2(1)2(1)1-12
2 2 2(1) 1-12(1) 2
2 1-12 2(1) 1-12(1) 1-14
400 3(2) 3(1) 2-12
3(1) 2(2) 2-12
2(1)2(1)2-12
2(1) 2-12(1) 2
2(1) 1-12(1) 2
2(1) 2(1) 1-12
2 1-12
500 3 (3) 3 3 2-12 2 2-12 2(1) 2-12(1) 2
2(1) 2(1) 2-12
2(1) 2(1)1-12
2(1) 1-12(1) 2
600 4 3 4(3) 2-12(1) 2
3 2-12 2 2-12 2(1) 2(1) 2-12
2 2 2 2
700 5(3) 3(2) 2-12
5(3) 2-12(2) 2
3 2-12 3(2) 2-12(1) 2
2 2-12 2(1) 2(1) 2-12
2 2
800 5(3) 3(2) 2-12
5(3) 2-12(2) 2
4(3) 2-12(1) 2
3(2) 2-12(1) 2
2 2-12 2(1) 2(1) 2-12
2(1) 2(1) 2-12
NOTES Valve manufacturers are Kunkle Consolidated or Conbraco depending on availability This table revised 042012
Table A1-14 Steam Boiler Safety Valve Openings
VALVE
SETTING 30 PSIG HW 60 PSIG HW 100 PSIG HW 125 PSIG HW
BOILER HPNO OF
VALVESREQD
OUTLETSIZE(IN)
NO OFVALVESREQD
OUTLETSIZE(IN)
NO OFVALVESREQD
OUTLETSIZE(IN)
NO OFVALVESREQD
OUTLETSIZE(IN)
125 1 2-12 1 2 1 2 1 1-14
150 1 2-12 1 2-12 1 2 1 2
200 2(1) 2-12(1) 1-14
1 2-12 1 2 1 2
250 2 (1) 2(1) 2-12
1 2-12 1 2-12 1 2
300 2 2-12 2(1) 1(1) 2-12
1 2-12 1 2-12
350 3(2) 2-12(1) 1
2(1) 2-12(1) 2
1 2-12 1 2-12
400 3 (1) 2(2) 2-12 2 (1) 2(2) 2-12 2 (1) 1(1) 2-12 1 2-12
500 4 (1) 1(3) 2-12
2 2-12 2(1) 2-12(1) 1-14
2(1) 1(1) 2-12
600 4(3) 2-12(1) 2
3(1) 1-1(2) 2-12
2(1) 2(1) 2-12
2(1) 2-12(1) 1-14
700 amp 800 5 (1) 1(4) 2-12
3(1) 2(2) 2-12
2 2-12 2(1) 2-12(1) 2
NOTES Hot water relief valves are Kunkle 537
Table A1-15 Hot Water Boiler Relief Valve Openings
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Model CBLE 125-800 HP Boilers
21
BOILER HP A B C D E F G X1 X2 X3
125 6 9 112 39-12 57-12 4 44-12 10 9-34 22-12
150 6 9 136 39-12 57-12 4 44-12 10 9-34 22-12
200 6 9 167 39-12 57-12 4 44-12 10 9-34 22-12
250 6 12 131 46 70 4 56 10 22 22-12
300 6 12 158 46 70 4 56 10 22 22-12
350 6 12 188 46 70 4 56 10 22 22-12
NOTE
All numbers in table are in inches
6-inch high mounting piers recommended for use beneath the boiler base frame The use of these piers provides increased inspection
accessibility to the piping beneath the boiler and added height for washing down the area beneath the boiler
Figure A1-7 Space Required to Open Rear Head on Model CB-LE Boilers Equipped with Davits
BOILER HPDIMENSIONS (INCHES)
A B C D E
CB-125 THRU CB-200 33 55 45 68 32
CB-250 THRU CB-350 42 69 58 86 43
CB-400 THRU CB-800 51 88 71 109 53
Figure A1-8 Model CB-LE Boiler Mounting Piers (60rdquo and 78rdquo)
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 2243
Model CBLE 125-800 HP Boilers
22
BOILER HP A B C D E F G
400 6 14 134 50 78 6-12 58-78
500 6 14 155 50 78 6-12 58-78
600 6 14 187 50 78 6-12 58-78
700-800 6 14 220 50 78 6-12 58-78
NOTE1 All numbers in table are in inches2 6-inch high mounting piers recommended for use beneath the boiler base frame The use of these piers provides in-
creased inspection accessibility to the piping beneath the boiler and added height for washing down the area beneaththe boiler
Figure A1-9 Model CB-LE Boiler Mounting Piers (96rdquo)
CBLE 250-350HP
CBLE 400-800HP
Motor HP Hole Number
75 1
15 1
25 2
40 3
Motor HP Hole Number
10 1
20 1
30 250 2
75 3
Figure A1-10 Front Davit Support
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Model CBLE 125-800 HP Boilers
23
BOILERHP
VIEW
ALL DIMENSIONS IN INCHES
A B C D E
125 All B 80-14 29-34 70-12 10 3
150 All B 80-14 29-34 83-12 10 3
200 All B 80-14 29-34 114-12 10 3
250Steam B 99 36 72 10 3
Hot Water B 99 36 81 10 3
300
Steam B 99 36 99 10 3
Hot Water B 99 36 108 10 3
350Steam B 99 36 129 10 3
Hot Water B 99 36 138 10 3
400Steam B 119 35-34 78 11 3
Hot Water B 119 35-34 78 11 3
500Steam B 119 35-34 99 11 3
Hot Water B 119 35-34 99 11 3
600Steam B 119 35-34 131 11 3
Hot Water B 119 35-34 131 11 3
700 amp 800Steam B 119 35-34 164 11 3
Hot Water B 119 35-34 164 11 3
NOTE A B and C dimensions may vary by 12 inch
Figure A1-11 Lifting Lug Location Model CB-LE Boilers
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httpslidepdfcomreaderfullcble-boiler-book 2443
Model CBLE 125-800 HP Boilers
24
PERFORMANCE DATA
The Low Emission Option provides NOx reduction at current published andpredicted fuel-to-steam efficiencies
Specifying BoilerEfficiency
Cleaver-Brooks offers an industry leading fuel-to-steam boiler efficiency guaranteefor Model CB-LE Firetube Boilers The guarantee is based on the fuel-to-steam
efficiencies shown in the efficiency tables and the following conditions Theefficiency percent number is only meaningful if the specific conditions of theefficiency calculations are clearly stated in the specification (see Cleaver-Brookspublication CB-7768 for a detailed description of efficiency calculations)
When specifying the efficiencies in the tables be sure to include the specificguarantee conditions to maximize the effectiveness of your efficiency specification Ifyou have any questions regarding the efficiency specifications please contact yourlocal Cleaver-Brooks authorized representative
EfficiencySpecification
The boiler manufacturer shall guarantee that at the time of startup the boiler willachieve fuel-to-steam efficiency (as shown in Table A1-16 and Table A1-17) at100 firing rate (add efficiency guarantees at 25 50 and 75 of rating if
required) If the boiler(s) fail to achieve the corresponding guaranteed efficiency aspublished the boiler manufacturer will rebate to the ultimate boiler owner tenthousand dollars ($10000) for every full efficiency point (10) that the actualefficiency is below the guaranteed level
The specified boiler efficiency is based on the following conditions
1 Fuel specification used to determine boiler efficiency
bull Natural Gas
Carbon (wt) = 6998Hydrogen (wt) = 2231Sulfur (wt) = 00
Heating value Btulb = 21830bull No 2 Oil
Carbon (wt) = 858Hydrogen (wt) = 127Sulfur (wt) = 02Heating value Btulb = 19420
No 6 Oil
Carbon (wt) = 866Hydrogen (wt) = 109Sulfur (wt) = 209Heating value Btulb = 18830
2 Efficiencies are based on ambient air temperature of 80 degF relative humidity of30 and 15 excess air in the exhaust flue gas
3 Efficiencies are based on manufacturerrsquos published radiation and convectionlosses (For Cleaver-Brooks radiation and convection losses see BoilerEfficiency Facts Guide publication number CB-7767)
4 Any efficiency verification testing will be based on the stack loss method
For efficiencies and stack temperatures at operating pressures not listed followthese procedures
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Model CBLE 125-800 HP Boilers
25
When the operating steam pressure is between 10 psig and 125 psig interpolatethe values from the efficiency tables
When the operating steam pressure is above 125 psig estimated efficiency can becalculated as follows
Example
Boiler 350 hpFuel natural gas
Operating steam pressure 200 psig
Find the fuel-to-steam efficiency at 100 firing rate From Table A1-16 for a 350hp boiler operating at 100 firing rate and an operating steam pressure of 125psig the efficiency is 825
Using Figure A1-12 note that the stack temperature increases 36 degF at the higheroperating pressure To estimate boiler efficiency use this rule of thumb For every40 degF increase in stack temperature efficiency decreases by 1 Since the stacktemperature rise is 36 degF the decrease in the boiler efficiency at 200 psig operatingpressure is calculated as follows 3640 =9 Therefore the boiler efficiency at200 psig operating pressure is 825 -9 = 816
Emissions The emission data included in this section consists of typical emission levels forModel CB boilers equipped with 60 30 25 and 20 ppm LE Options when firingnatural gas and No 2 oil
Notice
The data in Table A1-18 and Table A1-19 represent typical emission levels only
Guaranteed emission levels are available from your local Cleaver-Brooks authorized
representative
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26
BOILER
HP
OPERATING PRESSURE = 10 psig OPERATING PRESSURE = 125 psig
OF LOAD OF LOAD
25 50 75 100 25 50 75 100
125 833 836 834 832 804 809 810 810
150 844 846 845 843 815 820 820 821
200 850 853 851 849 822 827 827 827
250 850 847 840 833 820 820 816 813
300 853 853 846 839 826 827 822 819
350 853 857 852 845 826 832 828 825
400 845 847 846 844 818 822 824 822
500 855 857 855 852 828 832 833 831
600 857 860 858 856 829 835 836 835
700 857 862 860 857 830 836 836 836
800 858 861 859 856 831 836 837 835
Table A1-16 Predicted Fuel-to-Steam Efficiencies - Natural Gas
Figure A1-12 Predicted Stack Temperature Increase for Pressure Greater Than 125 psig
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27
Table A1-18 CB-LE Boilers - Natural Gas Emission Levels
POLLUTANT
ESTIMATED LEVEL
60 ppm 30 ppm 25 ppm 20 ppm 15 ppm 9 ppm
CO ppmA
lbMMBtu
50150B
004011
50150B
004011
50150B
004011
50150B
004011
50
004
50
004
NOx ppmA
lbMMBtu
60
007
30
0035
25
003
20
0024
15
0018
9
0011
SOx ppmA
lbMMBtu
1
0001
1
0001
1
0001
1
0001
1
0001
1
0001
HCVOC5 ppmA
lbMMBtu
10
0004
10
0004
10
0004
10
0004
10
0004
10
0004
PM ppmA
lbMMBtu
-
001
-
001
-
001
-
001
-
001
-
001
A ppm levels are given on a dry volume basis and corrected to 3 oxygen (15 excess air)
B CO emission for 60 30 25 amp 20 ppm system is 50 ppm (004 lbMMBtu) when boiler is operating above 50 of rated capacity
CO emission is 150 ppm (011 lbMMBtu) when boiler is operating below 50 of rated capacity
Table A1-17 Predicted Fuel-to-Steam Efficiencies - No 2 Oil
BOILER
HP
OPERATING PRESSURE = 10 psig OPERATING PRESSURE = 125 psig
OF LOAD OF LOAD
25 50 75 100 25 50 75 100
125 867 869 867 866 837 842 843 843
150 878 880 878 876 848 853 853 854
200 884 887 884 882 856 860 860 860
250 883 881 874 867 853 853 849 847
300 886 887 880 873 859 860 855 852
350 886 890 885 878 859 866 861 858
400 879 881 879 876 851 855 856 855
500 889 890 889 886 861 865 866 864
600 890 894 892 890 862 868 869 868
700 891 895 893 891 863 869 870 869
800 892 895 893 890 864 869 870 868
Table A1-19 CB-LE Boilers - No 2 Oil Emission Levels
POLLUTANTESTIMATED LEVEL
60 ppm LE Option 30 25 20 ppm LE Option 15 ppm 9 ppm
CO ppmA
lbMMBtu
50
0039
50
0039
50
0039
50
0039
NOx ppmA
lbMMBtu140
018690
012085
011370
0093
SOx ppmA
lbMMBtu
278
052
278
052
278
052
278
052
HCVOCs ppmA
lbMMBtu
4
0002
4
0002
4
0002
4
0002
PM ppmA
lbMMBtu
-
0025
-
0025
-
0025
-
0025
A ppm levels are given on a dry volume basis and corrected to 3 oxygen (15 excess air)
BASED ON THE FOLLOWING CONSTITUENT LEVELS
Fuel-bound Nitrogen content = 0015 by weight
Sulfur content = 05 by weight
Ash content = 001 by weight
09-09
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28
ENGINEERING DATA
Sound Level Table A1-20 gives a summary of predicted sound pressure levels for Model CBboilers with 30 ppm LE Options Contact your local Cleaver-Brooks authorizedrepresentative for sound levels or other LE Options
Units - The units for the sound level tables are dbA (decibels measured on the A-weighted scale) in reference to 00002 microbars (20 micro-Newtons per square
meter) Their reference are standardly used in specifying and reporting soundpressure levels on industrial equipment
Test Method - The sound pressure levels in the above tables were obtained fromtests in accordance with the ldquoABMA Test Code for the Measurement of Sound fromPackaged Boilersrdquo In accordance with this code the sound pressure levels reportedwere measured on the boiler centerline 4-12 feet vertically above the bottom of thebase rails and 3 feet horizontally in front of the end of the blower motor or frontsurface of the electrical cabinet
Sound Level Meter - The sound level meter used complies with ANSI S14 Type 1(Precision) The readings are taken with the meter set for slow response andcorrected for background levels
Sound Pressure - The large size boilers the need for auxiliary equipment and thenecessary interconnecting piping make it impractical (and sometimes impossible) toprovide a boiler testing environment which is suitable for taking the data needed todevelop Sound Pressure Power levels
Typical Values - Sound pressure levels (dbA) for the same boiler will vary betweenboiler rooms Sound levels will vary with motor type NOx levels and altitudes Inaddition variations will occur between different people using different sound meterson the same boiler And finally no two boilers can be expected to give precisely thesame sound levels For these reasons we can only predict but not guarantee soundlevels (dbA)
BOILER HP 125 150 200 250 300 350 400 500 600 700 800
HFO dbA 84 84 84 83 84 85 84 85 85 88 90
LFO dbA 82 82 83 81 82 83 82 83 83 84 89
HFG dbA 82 82 83 82 83 84 83 83 85 87 90
LFG dbA 81 81 82 81 82 83 81 81 82 84 88
NOTES1 Sound pressure levels measured on boilers operating in various locations and ex-
pressed in dbA are as shown2 Based on standard altitude fans and fan motors 60 Hz3 Contact your local Cleaver-Brooks authorized representative for sound levels of 60 25or 20 ppm LE Options
ABBREVIATIONS
HF = High Fire LF = Low Fire O = Oil G = Gas
Table A1-20 Model CBLE Predicted Sound Levels 30 ppm NOx Systemss
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29
Gas-Fired Burners Table A1-21 shows gas pressure with standard over- and undersized gas trains
Table A1-22 shows minimum required gas pressure altitude conversion
Figure A1-13 shows standard gas train sizes and locations for Model CB FiretubeBoilers
Figure A1-14 shows typical gas train piping layouts for multiple boiler applications
Figure A1-15 shows standard gas train components
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Model CBLE 125-800 HP Boilers
30
Table A1-21 Standard Undersize and Oversize Gas Trains
CBLE
BOILER HP GAS TRAINSIZE
UPSTREAMVALVE
DOWNSTREAMVALVE
EMISSIONS LEVEL 09 ppm 15 ppm 20 ppm 30 ppm 60 ppm UC
125 HP 15 in BB BB 33 - 49 psi 33 - 49 psi 08 - 50 psi 07 - 50 psi 07 - 50 psi 07 - 50 ps
125 HP 15 in PC PC 34 - 50 psi 34 - 50 psi 09 - 50 psi 08 - 50 psi 08 - 50 psi 08 - 50 ps
125 HP 20 in BB BB 31 - 33 psi 31 - 33 psi 06 - 08 psi 06 - 07 psi 05 - 07 psi 05 - 07 ps
125 HP 20 in PC PC 31 - 34 psi 31 - 34 psi 06 - 09 psi 06 - 08 psi 06 - 08 psi 05 - 08 ps
125 HP 25 in PC PC 30 - 31 psi 30 - 31 psi 04 - 06 psi 04 - 06 psi 04 - 05 psi 04 - 05 ps
125 HP 30 in PC PC 29 - 30 psi 29 - 30 psi 04 - 04 psi 04 - 04 psi 04 - 04 psi 03 - 04 ps
125 HP 40 in PC PC 29 - 29 psi 29 - 29 psi 04 - 04 psi 03 - 04 psi 03 - 04 psi 03 - 03 ps
150 HP 15 in BB BB 37 - 55 psi 39 - 58 psi 10 - 47 psi 09 - 50 psi 09 - 50 psi 09 - 50 ps
150 HP 15 in PC PC 38 - 57 psi 40 - 60 psi 11 - 42 psi 11 - 50 psi 10 - 50 psi 10 - 50 ps
150 HP 20 in BB BB 34 - 37 psi 36 - 39 psi 07 - 10 psi 06 - 09 psi 06 - 09 psi 06 - 09 ps
150 HP 20 in PC PC 34 - 38 psi 36 - 40 psi 07 - 11 psi 07 - 11 psi 07 - 10 psi 06 - 10 ps
150 HP 25 in PC PC 32 - 34 psi 34 - 36 psi 05 - 07 psi 04 - 06 psi 04 - 06 psi 04 - 06 ps
150 HP 30 in PC PC 32 - 32 psi 34 - 34 psi 04 - 05 psi 04 - 04 psi 04 - 04 psi 03 - 04 ps
150 HP 40 in PC PC 31 - 32 psi 33 - 34 psi 04 - 04 psi 03 - 04 psi 03 - 04 psi 03 - 03 ps
200 HP 15 in BB BB 46 - 69 psi 50 - 75 psi 16 - 50 psi 15 - 50 psi 15 - 50 ps
200 HP 15 in PC PC 48 - 72 psi 52 - 78 psi 18 - 50 psi 17 - 50 psi 17 - 50 ps
200 HP 20 in BB BB 41 - 46 psi 45 - 50 psi 10 - 16 psi 10 - 15 psi 10 - 15 ps
200 HP 20 in PC PC 41 - 48 psi 45 - 52 psi 11 - 18 psi 11 - 17 psi 10 - 17 ps
200 HP 25 in PC PC 38 - 41 psi 42 - 45 psi 07 - 10 psi 07 - 10 psi 06 - 10 ps
200 HP 30 in PC PC 36 - 38 psi 40 - 42 psi 06 - 07 psi 05 - 07 psi 05 - 06 ps
200 HP 40 in PC PC 36 - 36 psi 40 - 40 psi 05 - 06 psi 05 - 05 psi 04 - 05 ps
250 HP 15 in BB BB 41 - 62 psi 44 - 67 psi 24 - 50 psi 24 - 27 psi 24 - 26 psi 23 - 26 ps
250 HP 15 in PC PC 45 - 67 psi 48 - 72 psi 28 - 50 psi 27 - 28 psi 27 - 27 psi 27 - 27 ps
250 HP 20 in BB BB 33 - 38 psi 37 - 41 psi 16 - 24 psi 16 - 24 psi 16 - 24 psi 15 - 23 ps
250 HP 20 in PC PC 34 - 40 psi 37 - 43 psi 17 - 28 psi 17 - 27 psi 16 - 27 psi 16 - 27 ps
250 HP 25 in PC PC 29 - 33 psi 32 - 37 psi 11 - 16 psi 11 - 16 psi 11 - 16 psi 10 - 15 ps
250 HP 30 in PC PC 27 - 29 psi 31 - 32 psi 09 - 11 psi 09 - 11 psi 09 - 11 psi 09 - 10 ps
250 HP 40 in PC PC 26 - 27 psi 29 - 31 psi 08 - 09 psi 08 - 09 psi 08 - 09 psi 08 - 09 ps
300 HP 15 in - 20 in BB BB 55 - 83 psi 57 - 85 psi 30 - 50 psi 30 - 36 psi 30 - 35 psi 30 - 35 ps
300 HP 15 in - 20 in PC PC 58 - 87 psi 60 - 90 psi 33 - 50 psi 33 - 37 psi 33 - 36 psi 33 - 36 ps
300 HP 20 in BB BB 46 - 55 psi 47 - 57 psi 21 - 30 psi 21 - 30 psi 20 - 30 psi 20 - 30 ps
300 HP 20 in PC PC 47 - 58 psi 48 - 60 psi 22 - 33 psi 22 - 33 psi 21 - 33 psi 21 - 33 ps
300 HP 30 in PC PC 39 - 46 psi 40 - 47 psi 13 - 21 psi 13 - 21 psi 12 - 20 psi 12 - 20 ps
300 HP 40 in PC PC 37 - 39 psi 39 - 40 psi 11 - 13 psi 11 - 13 psi 10 - 12 psi 10 - 12 ps
350 HP 15 in - 20 in BB BB 64 - 90 psi 62 - 90 psi 42 - 50 psi 42 - 50 psi 41 - 50 psi 41 - 50 ps
350 HP 15 in - 20 in PC PC 68 - 90 psi 66 - 90 psi 46 - 50 psi 46 - 50 psi 45 - 50 psi 45 - 50 ps
350 HP 20 in BB BB 54 - 64 psi 53 - 62 psi 32 - 42 psi 32 - 42 psi 32 - 41 psi 31 - 41 ps
350 HP 20 in PC PC 56 - 68 psi 54 - 66 psi 34 - 46 psi 34 - 46 psi 33 - 45 psi 33 - 45 ps
350 HP 25 in PC PC 43 - 54 psi 42 - 53 psi 21 - 32 psi 21 - 32 psi 20 - 32 psi 20 - 31 ps
350 HP 30 in PC PC 40 - 43 psi 38 - 42 psi 17 - 21 psi 17 - 21 psi 17 - 20 psi 16 - 20 ps
350 HP 40 in PC PC 37 - 40 psi 36 - 38 psi 15 - 17 psi 15 - 17 psi 14 - 17 psi 14 - 16 ps
400 HP 15 in - 20 in BB BB 69 - 90 psi 69 - 90 psi 46 - 50 psi 46 - 50 psi 45 - 50 psi 45 - 50 ps
400 HP 15 in - 20 in PC PC 74 - 90 psi 75 - 90 psi 51 - 87 psi 51 - 77 psi 51 - 77 psi 51 - 77 ps
400 HP 20 in BB BB 55 - 69 psi 56 - 69 psi 32 - 46 psi 32 - 46 psi 32 - 45 psi 32 - 45 ps
400 HP 20 in PC PC 57 - 74 psi 58 - 75 psi 34 - 50 psi 34 - 50 psi 34 - 50 psi 34 - 50 ps
400 HP 25 in PC PC 41 - 55 psi 42 - 56 psi 18 - 32 psi 18 - 32 psi 18 - 32 psi 18 - 32 ps
400 HP 30 in PC PC 37 - 41 psi 38 - 42 psi 13 - 18 psi 13 - 18 psi 13 - 18 psi 13 - 18 ps
400 HP 40 in PC PC 34 - 37 psi 35 - 38 psi 11 - 13 psi 10 - 13 psi 10 - 13 psi 10 - 13 ps
500 HP 20 in - 25 in BB PC 58 - 76 psi 58 - 76 psi 46 - 50 psi 46 - 50 psi 45 - 50 psi 45 - 50 ps
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Model CBLE 125-800 HP Boilers
31
BB = Butter Ball PC = Plug Cock
NOTE In cases where the gas train increases in size after the regulating valve two diameters are listed The first number is the customer connection size
500 HP 20 in - 25 in PC PC 60 - 83 psi 60 - 83 psi 48 - 50 psi 47 - 50 psi 47 - 50 psi 47 - 50 psi
500 HP 25 in PC PC 39 - 58 psi 39 - 58 psi 27 - 46 psi 27 - 46 psi 27 - 45 psi 26 - 45 psi
500 HP 30 in PC PC 33 - 39 psi 33 - 39 psi 20 - 27 psi 20 - 27 psi 20 - 27 psi 20 - 26 psi
500 HP 40 in PC PC 28 - 33 psi 28 - 33 psi 16 - 20 psi 16 - 20 psi 15 - 20 psi 15 - 20 psi
600 HP 20 in - 25 in BB PC 80 - 90 psi 80 - 90 psi 65 - 90 psi 65 - 90 psi 64 - 89 psi 63 - 88 psi
600 HP 20 in - 25 in PC PC 82 - 90 psi 82 - 90 psi 67 - 100 psi 67 - 100 psi 66 - 99 psi 66 - 99 psi
600 HP 25 in PC PC 54 - 80 psi 54 - 80 psi 39 - 50 psi 38 - 50 psi 38 - 50 psi 37 - 50 psi
600 HP 25 in - 30 in PC PC 52 - 54 psi 52 - 54 psi 37 - 39 psi 36 - 38 psi 35 - 38 psi 35 - 37 psi
600 HP 30 in PC PC 43 - 52 psi 43 - 52 psi 28 - 37 psi 27 - 36 psi 27 - 35 psi 26 - 35 psi
600 HP 40 in PC PC 37 - 43 psi 37 - 43 psi 22 - 28 psi 21 - 27 psi 20 - 27 psi 20 - 26 psi
700 HP 20 in - 30 in BB PC 110 - 150 psi 107 - 150 psi 87 - 131 psi 86 - 130 psi 86 - 129 psi 86 - 128 psi
700 HP 20 in - 30 in PC PC 113 - 150 psi 110 - 150 psi 90 - 135 psi 89 - 134 psi 89 - 134 psi 89 - 133 psi
700 HP 25 in - 30 in PC PC 71 - 90 psi 68 - 90 psi 48 - 50 psi 47 - 50 psi 47 - 50 psi 46 - 50 psi
700 HP 30 in PC PC 60 - 71 psi 57 - 68 psi 36 - 48 psi 36 - 47 psi 35 - 47 psi 35 - 46 psi
700 HP 40 in PC PC 51 - 60 psi 48 - 57 psi 28 - 36 psi 27 - 36 psi 27 - 35 psi 26 - 35 psi
800 HP 20 in - 30 in BB PC 108 - 150 psi 107 - 150 psi 106 - 150 psi
800 HP 20 in - 30 in PC PC 112 - 150 psi 111 - 150 psi 110 - 150 psi800 HP 25 in - 30 in PC PC 61 - 90 psi 60 - 100 psi 59 - 100 psi
800 HP 30 in PC PC 48 - 61 psi 47 - 50 psi 46 - 50 psi
800 HP 40 in PC PC 35 - 48 psi 34 - 47 psi 34 - 46 psi
Standard Gas Train size is highlighted
Table A1-21 Standard Undersize and Oversize Gas Trains (Continued)
CBLE
BOILER HP GAS TRAINSIZE
UPSTREAMVALVE
DOWNSTREAMVALVE
EMISSIONS LEVEL 09 ppm 15 ppm 20 ppm 30 ppm 60 ppm UC
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Model CBLE 125-800 HP Boilers
32
ALTITUDE(FT)
CORRECTIONFACTOR
ALTITUDE(FT)
CORRECTIONFACTOR
1000 104 6000 1252000 107 7000 130
3000 111 8000 135
4000 116 9000 140
5000 121 - -
To obtain minimum required gas pressure at altitudesabove 700 feet multiply the pressure by the listed factorsInches WC x 0577 = ozsq-inOzsq-in x 1732 = Inches WCInches WC x 00361= psigOzsq-in x 00625 = psigPsig x 2771 = Inches WCPsig x 160 = Ozsq-in
Table A1-22 Minimum Required Regulated Gas Pressure
Altitude Conversion
BOILERHP
TYPE OF GAS AND HEAT CONTENT
NATURAL GAS1000 (Btucu-ft)
PROPANE GAS2550 (Btucu-ft)
125 5103 2000
150 6124 2402
200 8165 3202
250 10206 4002
300 12247 4802
350 14280 5600
400 16329 6404
500 20415 8006
600 24494 9605
700 28576 11206
800 32659 12807
Table A1-23 Maximum Gas Consumption (CFH)
for Natural Gas and Propane Vapor
BOILER
HP
MODEL CB
CONNECTION SIZE
(IN NPT)
LOCATIONDIMENSION
ldquoArdquo (IN)
125-200 1-12 52
250-350 2 56
400 2 58
500 2-12 60
600 2-12 - 3 71
700-800 3 65
Figure A1-13 Standard Gas Train Connection Size and Location
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33
Oil-Fired Burners Fuel oil consumption information is shown on the boiler rating sheets in theDimensions and Rating Section
Figure A1-16 shows the oil connection sizes and locations for Model CB Boilersfiring No 2 oil
Figure A1-17 through Figure A1-18 show typical oil systems and layouts
Figure A1-19 and Figure A1-20 show the detail of an oil transfer tank (day tank)typically utilized to provide a storage reservoir between the oil system supply pumpand the boiler oil pump
General BoilerInformation
Table A1-24 shows blowdown tank sizing information
Table A1-25 provides heating surface information
Table A1-26 provides steam volume and disengaging area information
Table A1-27 provides recommended steam nozzle sizes
Table A1-28 provides recommended non-return valve sizes
Boiler RoomInformation
Figure A1-21 shows typical boiler room length requirements
Figure A1-22 shows typical boiler room width requirements
Figure A1-23 shows typical breeching arrangements
Stack SupportCapabilities
All standard Cleaver-Brooks Firetube Boilers with an LE option can support up to2000 lbs without additional support
LE Boilers 250 hp through 800 hp can be reinforced to support 3000 lbs
StackBreechingSize Criteria
The design of the stack and breeching must provide the required draft at each boilerflue gas outlet Proper draft is critical to burner performance
Although constant pressure at the flue gas outlet of the Model CB-LE is not requiredit is necessary to size the stackbreeching to limit flue gas pressure variation Theallowable pressure range is ndash025 WC to +025 WC
For additional information please review Section I4 General Engineering Data(Stacks) and Section F Stacks Stack and breeching sizes should always be providedby a reputable stack supplier who will design the stack and breeching system basedon the above criteria Your local Cleaver-Brooks authorized representative is capableof assisting in your evaluation of the stackbreeching design
Boiler RoomCombustion Air
When determining boiler room air requirements the size of the room air flow andvelocity of air must be reviewed as follows
1 Size (area) and location of air supply openings in boiler room
A Two (2) permanent air supply openings in the outer walls of the boiler room
are recommended Locate (1) at each end of the boiler room preferablybelow a height of 7 feet This allows air to sweep the length of the boiler
B Air supply openings can be louvered for weather protection but they shouldnot be covered with fine mesh wire as this type of covering has poor air flowqualities and is subject to clogging by dust or dirt
C A vent fan in the boiler room is not recommended as it could create a slightvacuum under certain conditions and cause variations in the quantity ofcombustion air This can result in unsatisfactory burner performance
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Model CBLE 125-800 HP Boilers
34
D Under no condition should the total area of the air supply openings be lessthan (1) square foot
E Size the openings by using the formulaArea (sq-ft) = CFMFPM
2 Amount of air required (cfm)
A Combustion Air = Rated bhp x 8 cfmbhp
B Ventilation Air = Maximum bhp x 2 cfmbhp
C Total recommended air = 10 cfmbhp - up to 1000 feet elevation Add 3percent more per 1000 feet of added elevation
3 Acceptable air velocity in Boiler Room (fpm)
A From floor to (7) foot height - 250 fpm
B Above (7) foot height - 500 fpm
Example Determine the area of the boiler room air supply openings for (1) 300 hpboiler at 800 feet altitude The air openings are to be 5 feet above floor level
bull Air required 300 x 10 = 3000 cfm (from 2B above)
bull Air velocity Up to 7 feet = 250 fpm (from 3 above)
bull Area Required Area = cfm = 3000250 = 12 sq-ft total
bull AreaOpening 122 = 6 sq-ftopening (2 required)
Notice
Consult local codes which may supersede these requirements
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Model CBLE 125-800 HP Boilers
35
This figure illustrates the basic gas valve arrangement on Cleaver-BrooksModel CB boiler and shows the contractors connection point The valves andcontrols between the contractor connection point and the gas main in thestreet are representative of a typical installation Actual requirements mayvary depending on local codes or local gas company requirements which
should be investigated prior to preparation of specifications and prior to con-struction
A Utilities service valveB Utilities service regulatorC Gas meterD Piping from meter to boiler
The size of the gas line from the meter to the gas pressure regulator at theboiler can be very important if gas pressures are marginal The gas line sizingis dependent on
1 Gas pressure at outlet of gas meter (C)2 Rate of gas flow required CFH3 Length of pipe run (D)4 Pressure required at contractor connection point
The local gas utility will advise the pressure that is available at the outlet oftheir meter
Figure A1-14 Typical Gas Piping Layout
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Model CBLE 125-800 HP Boilers
36
5
6
S
1
3
42
PILOT GAS LINE
S
S
MAIN GAS LINE
M M
ToBurner
GasSupply
11
10
97
12138
14 15
FLOW
FLOW
Figure A1-15 Model CB-LE Gas Train Components
BOILER
HP
MODEL CB
SUPPLYANDRE-
TURNCONN SIZES
(IN)(NPT)
A(IN)
RECOMMENDED OIL LINEA
SIZES(STANDARD PIPE)
(IN - IPS)
STOR-AGE
TANK TOBOILER
OR PUMPCONNECT
PUMPTO
BOILER
RE-TURN
LINE TOTANK
125150 200
34 12-12 1 1 1
250300350
34 34 1 1 1
400500600
34 11-34 1 1 1
700800
1 11-34 1 1 1
NOTE See No 2 Oil Line Sizing Instruction for systems with other conditions A For suction line condition with a maximum of 10 Feet of lift and a
total of 100 feet of suction line
Figure A1-16 No2 Oil Connection Size Location and Recommended Line Sizes
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Model CBLE 125-800 HP Boilers
37
Figure A1-17 No 2 Oil Piping Single Boiler
Installation Remote Oil Pump
Figure A1-18 No 2 Oil Piping Multiple Boiler
Installation Remote Oil Pumps
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Model CBLE 125-800 HP Boilers
38
Figure A1-19 No 2 Oil Piping Multiple Boiler
Installation
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Model CBLE 125-800 HP Boilers
39
Figure A1-20 No 2 Oil Piping Typical Arrangement
Table A1-24 Model CB-LE Blowdown
Tank Sizing
BOILER HP WATER (GAL)
125 97
150 118
200 145
250 146
300 176
350 210
400 177
500 209
600 250
700 800 296
NOTE Quantity of water removed from boiler by lowering normal water line 4
BOILER
HP
HEATING SURFACE (SQ-FT)
FIRESIDE WATERSIDE
125 625 679
150 750 820
200 1000 1092
250 1250 1346
300 1500 1623
350 1750 1932
400 2000 2151
500 2500 2691
600 3000 3262
700 800 3500 3810
Table A1-25 Heating Surface Model CB-LE
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Model CBLE 125-800 HP Boilers
40
BOILER HPSTEAM VOLUME CU-FT
STEAM DISENGAGING AREASQ-IN
HIGH PRESSUREA LOW PRESSUREB HIGH PRESSUREA LOW PRESSUREB
125 254 366 5371 5887
150 307 443 6511 7138
200 377 544 7985 8752
250 492 706 7980 8695
300 595 853 9651 10516
350 709 1017 11507 12538
400 721 979 9793 10593
500 837 1137 11376 12303
600 1015 1378 13787 14911
700-800 1198 1627 16273 17600
NOTE Based on normal water levelA Based on 150 psig design pressureB Based on 15 psig design pressure
Table A1-26 Steam Volume and Disengaging Area
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Model CBLE 125-800 HP Boilers
41
BOILERHP
BOILERCAPACITY(LBSHR)
OPERATING PRESSURES (PSIG)
50 75 100 125 150 175 200 250
100 3450
2-12 2-12 NA NA NA NA NA NA
125 4313 3 2-12 2-12 2-12 NA NA NA NA
150 5175 3 3 2-12 2-12 2-12 2-12 NA NA
200 6900 3 3 3 3 3 2-12 2-12 2-12
250 8625 4 3 3 3 3 3 3 3
300 10350 4 4 4 3 3 3 3 3
350 12025 4 4 4 4 4 3 3 3
400 13800 5 4 4 4 4 4 4 3
500 17210 6 5 5 4 4 4 4 4
600 20700 6 6 5 5 5 4 4 4
700 24150 6 6 6 5 5 5 5 4
800 27600 6 6 6 6 6 5 5 5
NOTE Valve sizes (300 Flanges) given in inchesStandard Non-Return valve selections limited to a maximum 2 to 1 turndown(50 of full load) selections based on typical non-return valve sizing recommen-dations For final valve selection contact your C-B authorized representative Forhigh turndown applications see Boiler Book Section I3 Table I3-3 Indicates pressure drop of less than 75 psig All other selections are less than6 psig pressure drop
Boiler HP
OPERATINGPRESSURE
PSIG125 150 200 250 300 350 400 500 600 700 800
15 8 8 10 10 12 12 12 12 12 12 12
30 6 6 8 8 8 10 10 10 12 12 12
40 6 6 6 8 8 8 10 10 10 12 12
50 6 6 6 6 8 8 8 10 10 10 12
75 4 4 6 6 6 8 8 8 8 10 10
100 4 4 6 6 6 6 6 8 8 8 10
125 4 4 4 6 6 6 6 8 8 8 8
150 3 3 4 4 6 6 6 6 6 8 8
200 25 3 4 4 4 4 6 6 6 6 6
250 25 3 3 4 4 4 4 6 6 6 6
NOTES1 Steam nozzle sizes given in inches2 Recommended steam nozzle sizes based on 4000 to 5000 fpm steam velocity3 All standard steam nozzle sizes for 150 psig design pressure or greater are the sameas 125 psig operating pressure on the above table To increase or decrease the standardsize request the change with your local Cleaver-Brooks authorized representative4 Shaded area denotes special surge load baffles must be installed to avoid possible wa-ter carry-over5 For incremental operating pressures see Table I3-1 Steam Systems Fundamentals
Table A1-28 Recommended Steam Nozzle Size (for
4000 to 5000 fpm nozzle velocity)
Table A1-29 Recommended Non-Return Valve Size
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Model CBLE 125-800 HP Boilers
42
1 Shortest boiler room length (Dwg A) is obtained by allowing for possible future tube replacement (from front or rearof boiler) through a window or doorway Allowance is only made for minimum door swing at each end of the boilerThis arrangement provides sufficient aisle space at the front of the boiler but a ldquotightrdquo space condition at the rear
If space permits approximately 15 additional feet should be allowed at the rear for additional aisle and workingspace
2 Next shortest boiler room length (Dwg B) is obtained by allowing for possible future tube replacement from thefront of the boiler Allowance is only made for minimum door swing at the rear
If space permits approximately 15 additional feet should be allowed at the rear for additional aisle and workingspace
3 A slightly longer boiler room (Dwg C) is obtained by allowing for possible future tube replacement from the rear ofthe boiler Allowance for door swing at the front provides sufficient aisle and working space at the front
Figure A1-21 Boiler Room Length (Typical Layouts)
BOILER HP 125-200 250-350 400-800
Dimension A 82 93 102
Dimension B 115 141 171
NOTES1 Recommended Minimum Distance Between Boiler and Wall Dimen-
sion ldquoArdquo allows for a ldquoclearrdquo 42 aisle between the water col-umn on the boiler and the wall If space permits this aisle
should be widened 2 Recommended Minimum Distance Between BoilersDimension ldquoBrdquo between boilers allows for a ldquoclearrdquo aisle of42 - 125 -200 hp48 - 250-350 hp60 - 400-800 hpIf space permits this aisle should be widened
Figure A1-22 Boiler Room Width (Typical Layout)
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Model CBLE 125-800 HP Boilers
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Model CBLE 125-800 HP Boilers
21
BOILER HP A B C D E F G X1 X2 X3
125 6 9 112 39-12 57-12 4 44-12 10 9-34 22-12
150 6 9 136 39-12 57-12 4 44-12 10 9-34 22-12
200 6 9 167 39-12 57-12 4 44-12 10 9-34 22-12
250 6 12 131 46 70 4 56 10 22 22-12
300 6 12 158 46 70 4 56 10 22 22-12
350 6 12 188 46 70 4 56 10 22 22-12
NOTE
All numbers in table are in inches
6-inch high mounting piers recommended for use beneath the boiler base frame The use of these piers provides increased inspection
accessibility to the piping beneath the boiler and added height for washing down the area beneath the boiler
Figure A1-7 Space Required to Open Rear Head on Model CB-LE Boilers Equipped with Davits
BOILER HPDIMENSIONS (INCHES)
A B C D E
CB-125 THRU CB-200 33 55 45 68 32
CB-250 THRU CB-350 42 69 58 86 43
CB-400 THRU CB-800 51 88 71 109 53
Figure A1-8 Model CB-LE Boiler Mounting Piers (60rdquo and 78rdquo)
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Model CBLE 125-800 HP Boilers
22
BOILER HP A B C D E F G
400 6 14 134 50 78 6-12 58-78
500 6 14 155 50 78 6-12 58-78
600 6 14 187 50 78 6-12 58-78
700-800 6 14 220 50 78 6-12 58-78
NOTE1 All numbers in table are in inches2 6-inch high mounting piers recommended for use beneath the boiler base frame The use of these piers provides in-
creased inspection accessibility to the piping beneath the boiler and added height for washing down the area beneaththe boiler
Figure A1-9 Model CB-LE Boiler Mounting Piers (96rdquo)
CBLE 250-350HP
CBLE 400-800HP
Motor HP Hole Number
75 1
15 1
25 2
40 3
Motor HP Hole Number
10 1
20 1
30 250 2
75 3
Figure A1-10 Front Davit Support
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Model CBLE 125-800 HP Boilers
23
BOILERHP
VIEW
ALL DIMENSIONS IN INCHES
A B C D E
125 All B 80-14 29-34 70-12 10 3
150 All B 80-14 29-34 83-12 10 3
200 All B 80-14 29-34 114-12 10 3
250Steam B 99 36 72 10 3
Hot Water B 99 36 81 10 3
300
Steam B 99 36 99 10 3
Hot Water B 99 36 108 10 3
350Steam B 99 36 129 10 3
Hot Water B 99 36 138 10 3
400Steam B 119 35-34 78 11 3
Hot Water B 119 35-34 78 11 3
500Steam B 119 35-34 99 11 3
Hot Water B 119 35-34 99 11 3
600Steam B 119 35-34 131 11 3
Hot Water B 119 35-34 131 11 3
700 amp 800Steam B 119 35-34 164 11 3
Hot Water B 119 35-34 164 11 3
NOTE A B and C dimensions may vary by 12 inch
Figure A1-11 Lifting Lug Location Model CB-LE Boilers
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Model CBLE 125-800 HP Boilers
24
PERFORMANCE DATA
The Low Emission Option provides NOx reduction at current published andpredicted fuel-to-steam efficiencies
Specifying BoilerEfficiency
Cleaver-Brooks offers an industry leading fuel-to-steam boiler efficiency guaranteefor Model CB-LE Firetube Boilers The guarantee is based on the fuel-to-steam
efficiencies shown in the efficiency tables and the following conditions Theefficiency percent number is only meaningful if the specific conditions of theefficiency calculations are clearly stated in the specification (see Cleaver-Brookspublication CB-7768 for a detailed description of efficiency calculations)
When specifying the efficiencies in the tables be sure to include the specificguarantee conditions to maximize the effectiveness of your efficiency specification Ifyou have any questions regarding the efficiency specifications please contact yourlocal Cleaver-Brooks authorized representative
EfficiencySpecification
The boiler manufacturer shall guarantee that at the time of startup the boiler willachieve fuel-to-steam efficiency (as shown in Table A1-16 and Table A1-17) at100 firing rate (add efficiency guarantees at 25 50 and 75 of rating if
required) If the boiler(s) fail to achieve the corresponding guaranteed efficiency aspublished the boiler manufacturer will rebate to the ultimate boiler owner tenthousand dollars ($10000) for every full efficiency point (10) that the actualefficiency is below the guaranteed level
The specified boiler efficiency is based on the following conditions
1 Fuel specification used to determine boiler efficiency
bull Natural Gas
Carbon (wt) = 6998Hydrogen (wt) = 2231Sulfur (wt) = 00
Heating value Btulb = 21830bull No 2 Oil
Carbon (wt) = 858Hydrogen (wt) = 127Sulfur (wt) = 02Heating value Btulb = 19420
No 6 Oil
Carbon (wt) = 866Hydrogen (wt) = 109Sulfur (wt) = 209Heating value Btulb = 18830
2 Efficiencies are based on ambient air temperature of 80 degF relative humidity of30 and 15 excess air in the exhaust flue gas
3 Efficiencies are based on manufacturerrsquos published radiation and convectionlosses (For Cleaver-Brooks radiation and convection losses see BoilerEfficiency Facts Guide publication number CB-7767)
4 Any efficiency verification testing will be based on the stack loss method
For efficiencies and stack temperatures at operating pressures not listed followthese procedures
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Model CBLE 125-800 HP Boilers
25
When the operating steam pressure is between 10 psig and 125 psig interpolatethe values from the efficiency tables
When the operating steam pressure is above 125 psig estimated efficiency can becalculated as follows
Example
Boiler 350 hpFuel natural gas
Operating steam pressure 200 psig
Find the fuel-to-steam efficiency at 100 firing rate From Table A1-16 for a 350hp boiler operating at 100 firing rate and an operating steam pressure of 125psig the efficiency is 825
Using Figure A1-12 note that the stack temperature increases 36 degF at the higheroperating pressure To estimate boiler efficiency use this rule of thumb For every40 degF increase in stack temperature efficiency decreases by 1 Since the stacktemperature rise is 36 degF the decrease in the boiler efficiency at 200 psig operatingpressure is calculated as follows 3640 =9 Therefore the boiler efficiency at200 psig operating pressure is 825 -9 = 816
Emissions The emission data included in this section consists of typical emission levels forModel CB boilers equipped with 60 30 25 and 20 ppm LE Options when firingnatural gas and No 2 oil
Notice
The data in Table A1-18 and Table A1-19 represent typical emission levels only
Guaranteed emission levels are available from your local Cleaver-Brooks authorized
representative
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Model CBLE 125-800 HP Boilers
26
BOILER
HP
OPERATING PRESSURE = 10 psig OPERATING PRESSURE = 125 psig
OF LOAD OF LOAD
25 50 75 100 25 50 75 100
125 833 836 834 832 804 809 810 810
150 844 846 845 843 815 820 820 821
200 850 853 851 849 822 827 827 827
250 850 847 840 833 820 820 816 813
300 853 853 846 839 826 827 822 819
350 853 857 852 845 826 832 828 825
400 845 847 846 844 818 822 824 822
500 855 857 855 852 828 832 833 831
600 857 860 858 856 829 835 836 835
700 857 862 860 857 830 836 836 836
800 858 861 859 856 831 836 837 835
Table A1-16 Predicted Fuel-to-Steam Efficiencies - Natural Gas
Figure A1-12 Predicted Stack Temperature Increase for Pressure Greater Than 125 psig
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Model CBLE 125-800 HP Boilers
27
Table A1-18 CB-LE Boilers - Natural Gas Emission Levels
POLLUTANT
ESTIMATED LEVEL
60 ppm 30 ppm 25 ppm 20 ppm 15 ppm 9 ppm
CO ppmA
lbMMBtu
50150B
004011
50150B
004011
50150B
004011
50150B
004011
50
004
50
004
NOx ppmA
lbMMBtu
60
007
30
0035
25
003
20
0024
15
0018
9
0011
SOx ppmA
lbMMBtu
1
0001
1
0001
1
0001
1
0001
1
0001
1
0001
HCVOC5 ppmA
lbMMBtu
10
0004
10
0004
10
0004
10
0004
10
0004
10
0004
PM ppmA
lbMMBtu
-
001
-
001
-
001
-
001
-
001
-
001
A ppm levels are given on a dry volume basis and corrected to 3 oxygen (15 excess air)
B CO emission for 60 30 25 amp 20 ppm system is 50 ppm (004 lbMMBtu) when boiler is operating above 50 of rated capacity
CO emission is 150 ppm (011 lbMMBtu) when boiler is operating below 50 of rated capacity
Table A1-17 Predicted Fuel-to-Steam Efficiencies - No 2 Oil
BOILER
HP
OPERATING PRESSURE = 10 psig OPERATING PRESSURE = 125 psig
OF LOAD OF LOAD
25 50 75 100 25 50 75 100
125 867 869 867 866 837 842 843 843
150 878 880 878 876 848 853 853 854
200 884 887 884 882 856 860 860 860
250 883 881 874 867 853 853 849 847
300 886 887 880 873 859 860 855 852
350 886 890 885 878 859 866 861 858
400 879 881 879 876 851 855 856 855
500 889 890 889 886 861 865 866 864
600 890 894 892 890 862 868 869 868
700 891 895 893 891 863 869 870 869
800 892 895 893 890 864 869 870 868
Table A1-19 CB-LE Boilers - No 2 Oil Emission Levels
POLLUTANTESTIMATED LEVEL
60 ppm LE Option 30 25 20 ppm LE Option 15 ppm 9 ppm
CO ppmA
lbMMBtu
50
0039
50
0039
50
0039
50
0039
NOx ppmA
lbMMBtu140
018690
012085
011370
0093
SOx ppmA
lbMMBtu
278
052
278
052
278
052
278
052
HCVOCs ppmA
lbMMBtu
4
0002
4
0002
4
0002
4
0002
PM ppmA
lbMMBtu
-
0025
-
0025
-
0025
-
0025
A ppm levels are given on a dry volume basis and corrected to 3 oxygen (15 excess air)
BASED ON THE FOLLOWING CONSTITUENT LEVELS
Fuel-bound Nitrogen content = 0015 by weight
Sulfur content = 05 by weight
Ash content = 001 by weight
09-09
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Model CBLE 125-800 HP Boilers
28
ENGINEERING DATA
Sound Level Table A1-20 gives a summary of predicted sound pressure levels for Model CBboilers with 30 ppm LE Options Contact your local Cleaver-Brooks authorizedrepresentative for sound levels or other LE Options
Units - The units for the sound level tables are dbA (decibels measured on the A-weighted scale) in reference to 00002 microbars (20 micro-Newtons per square
meter) Their reference are standardly used in specifying and reporting soundpressure levels on industrial equipment
Test Method - The sound pressure levels in the above tables were obtained fromtests in accordance with the ldquoABMA Test Code for the Measurement of Sound fromPackaged Boilersrdquo In accordance with this code the sound pressure levels reportedwere measured on the boiler centerline 4-12 feet vertically above the bottom of thebase rails and 3 feet horizontally in front of the end of the blower motor or frontsurface of the electrical cabinet
Sound Level Meter - The sound level meter used complies with ANSI S14 Type 1(Precision) The readings are taken with the meter set for slow response andcorrected for background levels
Sound Pressure - The large size boilers the need for auxiliary equipment and thenecessary interconnecting piping make it impractical (and sometimes impossible) toprovide a boiler testing environment which is suitable for taking the data needed todevelop Sound Pressure Power levels
Typical Values - Sound pressure levels (dbA) for the same boiler will vary betweenboiler rooms Sound levels will vary with motor type NOx levels and altitudes Inaddition variations will occur between different people using different sound meterson the same boiler And finally no two boilers can be expected to give precisely thesame sound levels For these reasons we can only predict but not guarantee soundlevels (dbA)
BOILER HP 125 150 200 250 300 350 400 500 600 700 800
HFO dbA 84 84 84 83 84 85 84 85 85 88 90
LFO dbA 82 82 83 81 82 83 82 83 83 84 89
HFG dbA 82 82 83 82 83 84 83 83 85 87 90
LFG dbA 81 81 82 81 82 83 81 81 82 84 88
NOTES1 Sound pressure levels measured on boilers operating in various locations and ex-
pressed in dbA are as shown2 Based on standard altitude fans and fan motors 60 Hz3 Contact your local Cleaver-Brooks authorized representative for sound levels of 60 25or 20 ppm LE Options
ABBREVIATIONS
HF = High Fire LF = Low Fire O = Oil G = Gas
Table A1-20 Model CBLE Predicted Sound Levels 30 ppm NOx Systemss
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Model CBLE 125-800 HP Boilers
29
Gas-Fired Burners Table A1-21 shows gas pressure with standard over- and undersized gas trains
Table A1-22 shows minimum required gas pressure altitude conversion
Figure A1-13 shows standard gas train sizes and locations for Model CB FiretubeBoilers
Figure A1-14 shows typical gas train piping layouts for multiple boiler applications
Figure A1-15 shows standard gas train components
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Model CBLE 125-800 HP Boilers
30
Table A1-21 Standard Undersize and Oversize Gas Trains
CBLE
BOILER HP GAS TRAINSIZE
UPSTREAMVALVE
DOWNSTREAMVALVE
EMISSIONS LEVEL 09 ppm 15 ppm 20 ppm 30 ppm 60 ppm UC
125 HP 15 in BB BB 33 - 49 psi 33 - 49 psi 08 - 50 psi 07 - 50 psi 07 - 50 psi 07 - 50 ps
125 HP 15 in PC PC 34 - 50 psi 34 - 50 psi 09 - 50 psi 08 - 50 psi 08 - 50 psi 08 - 50 ps
125 HP 20 in BB BB 31 - 33 psi 31 - 33 psi 06 - 08 psi 06 - 07 psi 05 - 07 psi 05 - 07 ps
125 HP 20 in PC PC 31 - 34 psi 31 - 34 psi 06 - 09 psi 06 - 08 psi 06 - 08 psi 05 - 08 ps
125 HP 25 in PC PC 30 - 31 psi 30 - 31 psi 04 - 06 psi 04 - 06 psi 04 - 05 psi 04 - 05 ps
125 HP 30 in PC PC 29 - 30 psi 29 - 30 psi 04 - 04 psi 04 - 04 psi 04 - 04 psi 03 - 04 ps
125 HP 40 in PC PC 29 - 29 psi 29 - 29 psi 04 - 04 psi 03 - 04 psi 03 - 04 psi 03 - 03 ps
150 HP 15 in BB BB 37 - 55 psi 39 - 58 psi 10 - 47 psi 09 - 50 psi 09 - 50 psi 09 - 50 ps
150 HP 15 in PC PC 38 - 57 psi 40 - 60 psi 11 - 42 psi 11 - 50 psi 10 - 50 psi 10 - 50 ps
150 HP 20 in BB BB 34 - 37 psi 36 - 39 psi 07 - 10 psi 06 - 09 psi 06 - 09 psi 06 - 09 ps
150 HP 20 in PC PC 34 - 38 psi 36 - 40 psi 07 - 11 psi 07 - 11 psi 07 - 10 psi 06 - 10 ps
150 HP 25 in PC PC 32 - 34 psi 34 - 36 psi 05 - 07 psi 04 - 06 psi 04 - 06 psi 04 - 06 ps
150 HP 30 in PC PC 32 - 32 psi 34 - 34 psi 04 - 05 psi 04 - 04 psi 04 - 04 psi 03 - 04 ps
150 HP 40 in PC PC 31 - 32 psi 33 - 34 psi 04 - 04 psi 03 - 04 psi 03 - 04 psi 03 - 03 ps
200 HP 15 in BB BB 46 - 69 psi 50 - 75 psi 16 - 50 psi 15 - 50 psi 15 - 50 ps
200 HP 15 in PC PC 48 - 72 psi 52 - 78 psi 18 - 50 psi 17 - 50 psi 17 - 50 ps
200 HP 20 in BB BB 41 - 46 psi 45 - 50 psi 10 - 16 psi 10 - 15 psi 10 - 15 ps
200 HP 20 in PC PC 41 - 48 psi 45 - 52 psi 11 - 18 psi 11 - 17 psi 10 - 17 ps
200 HP 25 in PC PC 38 - 41 psi 42 - 45 psi 07 - 10 psi 07 - 10 psi 06 - 10 ps
200 HP 30 in PC PC 36 - 38 psi 40 - 42 psi 06 - 07 psi 05 - 07 psi 05 - 06 ps
200 HP 40 in PC PC 36 - 36 psi 40 - 40 psi 05 - 06 psi 05 - 05 psi 04 - 05 ps
250 HP 15 in BB BB 41 - 62 psi 44 - 67 psi 24 - 50 psi 24 - 27 psi 24 - 26 psi 23 - 26 ps
250 HP 15 in PC PC 45 - 67 psi 48 - 72 psi 28 - 50 psi 27 - 28 psi 27 - 27 psi 27 - 27 ps
250 HP 20 in BB BB 33 - 38 psi 37 - 41 psi 16 - 24 psi 16 - 24 psi 16 - 24 psi 15 - 23 ps
250 HP 20 in PC PC 34 - 40 psi 37 - 43 psi 17 - 28 psi 17 - 27 psi 16 - 27 psi 16 - 27 ps
250 HP 25 in PC PC 29 - 33 psi 32 - 37 psi 11 - 16 psi 11 - 16 psi 11 - 16 psi 10 - 15 ps
250 HP 30 in PC PC 27 - 29 psi 31 - 32 psi 09 - 11 psi 09 - 11 psi 09 - 11 psi 09 - 10 ps
250 HP 40 in PC PC 26 - 27 psi 29 - 31 psi 08 - 09 psi 08 - 09 psi 08 - 09 psi 08 - 09 ps
300 HP 15 in - 20 in BB BB 55 - 83 psi 57 - 85 psi 30 - 50 psi 30 - 36 psi 30 - 35 psi 30 - 35 ps
300 HP 15 in - 20 in PC PC 58 - 87 psi 60 - 90 psi 33 - 50 psi 33 - 37 psi 33 - 36 psi 33 - 36 ps
300 HP 20 in BB BB 46 - 55 psi 47 - 57 psi 21 - 30 psi 21 - 30 psi 20 - 30 psi 20 - 30 ps
300 HP 20 in PC PC 47 - 58 psi 48 - 60 psi 22 - 33 psi 22 - 33 psi 21 - 33 psi 21 - 33 ps
300 HP 30 in PC PC 39 - 46 psi 40 - 47 psi 13 - 21 psi 13 - 21 psi 12 - 20 psi 12 - 20 ps
300 HP 40 in PC PC 37 - 39 psi 39 - 40 psi 11 - 13 psi 11 - 13 psi 10 - 12 psi 10 - 12 ps
350 HP 15 in - 20 in BB BB 64 - 90 psi 62 - 90 psi 42 - 50 psi 42 - 50 psi 41 - 50 psi 41 - 50 ps
350 HP 15 in - 20 in PC PC 68 - 90 psi 66 - 90 psi 46 - 50 psi 46 - 50 psi 45 - 50 psi 45 - 50 ps
350 HP 20 in BB BB 54 - 64 psi 53 - 62 psi 32 - 42 psi 32 - 42 psi 32 - 41 psi 31 - 41 ps
350 HP 20 in PC PC 56 - 68 psi 54 - 66 psi 34 - 46 psi 34 - 46 psi 33 - 45 psi 33 - 45 ps
350 HP 25 in PC PC 43 - 54 psi 42 - 53 psi 21 - 32 psi 21 - 32 psi 20 - 32 psi 20 - 31 ps
350 HP 30 in PC PC 40 - 43 psi 38 - 42 psi 17 - 21 psi 17 - 21 psi 17 - 20 psi 16 - 20 ps
350 HP 40 in PC PC 37 - 40 psi 36 - 38 psi 15 - 17 psi 15 - 17 psi 14 - 17 psi 14 - 16 ps
400 HP 15 in - 20 in BB BB 69 - 90 psi 69 - 90 psi 46 - 50 psi 46 - 50 psi 45 - 50 psi 45 - 50 ps
400 HP 15 in - 20 in PC PC 74 - 90 psi 75 - 90 psi 51 - 87 psi 51 - 77 psi 51 - 77 psi 51 - 77 ps
400 HP 20 in BB BB 55 - 69 psi 56 - 69 psi 32 - 46 psi 32 - 46 psi 32 - 45 psi 32 - 45 ps
400 HP 20 in PC PC 57 - 74 psi 58 - 75 psi 34 - 50 psi 34 - 50 psi 34 - 50 psi 34 - 50 ps
400 HP 25 in PC PC 41 - 55 psi 42 - 56 psi 18 - 32 psi 18 - 32 psi 18 - 32 psi 18 - 32 ps
400 HP 30 in PC PC 37 - 41 psi 38 - 42 psi 13 - 18 psi 13 - 18 psi 13 - 18 psi 13 - 18 ps
400 HP 40 in PC PC 34 - 37 psi 35 - 38 psi 11 - 13 psi 10 - 13 psi 10 - 13 psi 10 - 13 ps
500 HP 20 in - 25 in BB PC 58 - 76 psi 58 - 76 psi 46 - 50 psi 46 - 50 psi 45 - 50 psi 45 - 50 ps
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Model CBLE 125-800 HP Boilers
31
BB = Butter Ball PC = Plug Cock
NOTE In cases where the gas train increases in size after the regulating valve two diameters are listed The first number is the customer connection size
500 HP 20 in - 25 in PC PC 60 - 83 psi 60 - 83 psi 48 - 50 psi 47 - 50 psi 47 - 50 psi 47 - 50 psi
500 HP 25 in PC PC 39 - 58 psi 39 - 58 psi 27 - 46 psi 27 - 46 psi 27 - 45 psi 26 - 45 psi
500 HP 30 in PC PC 33 - 39 psi 33 - 39 psi 20 - 27 psi 20 - 27 psi 20 - 27 psi 20 - 26 psi
500 HP 40 in PC PC 28 - 33 psi 28 - 33 psi 16 - 20 psi 16 - 20 psi 15 - 20 psi 15 - 20 psi
600 HP 20 in - 25 in BB PC 80 - 90 psi 80 - 90 psi 65 - 90 psi 65 - 90 psi 64 - 89 psi 63 - 88 psi
600 HP 20 in - 25 in PC PC 82 - 90 psi 82 - 90 psi 67 - 100 psi 67 - 100 psi 66 - 99 psi 66 - 99 psi
600 HP 25 in PC PC 54 - 80 psi 54 - 80 psi 39 - 50 psi 38 - 50 psi 38 - 50 psi 37 - 50 psi
600 HP 25 in - 30 in PC PC 52 - 54 psi 52 - 54 psi 37 - 39 psi 36 - 38 psi 35 - 38 psi 35 - 37 psi
600 HP 30 in PC PC 43 - 52 psi 43 - 52 psi 28 - 37 psi 27 - 36 psi 27 - 35 psi 26 - 35 psi
600 HP 40 in PC PC 37 - 43 psi 37 - 43 psi 22 - 28 psi 21 - 27 psi 20 - 27 psi 20 - 26 psi
700 HP 20 in - 30 in BB PC 110 - 150 psi 107 - 150 psi 87 - 131 psi 86 - 130 psi 86 - 129 psi 86 - 128 psi
700 HP 20 in - 30 in PC PC 113 - 150 psi 110 - 150 psi 90 - 135 psi 89 - 134 psi 89 - 134 psi 89 - 133 psi
700 HP 25 in - 30 in PC PC 71 - 90 psi 68 - 90 psi 48 - 50 psi 47 - 50 psi 47 - 50 psi 46 - 50 psi
700 HP 30 in PC PC 60 - 71 psi 57 - 68 psi 36 - 48 psi 36 - 47 psi 35 - 47 psi 35 - 46 psi
700 HP 40 in PC PC 51 - 60 psi 48 - 57 psi 28 - 36 psi 27 - 36 psi 27 - 35 psi 26 - 35 psi
800 HP 20 in - 30 in BB PC 108 - 150 psi 107 - 150 psi 106 - 150 psi
800 HP 20 in - 30 in PC PC 112 - 150 psi 111 - 150 psi 110 - 150 psi800 HP 25 in - 30 in PC PC 61 - 90 psi 60 - 100 psi 59 - 100 psi
800 HP 30 in PC PC 48 - 61 psi 47 - 50 psi 46 - 50 psi
800 HP 40 in PC PC 35 - 48 psi 34 - 47 psi 34 - 46 psi
Standard Gas Train size is highlighted
Table A1-21 Standard Undersize and Oversize Gas Trains (Continued)
CBLE
BOILER HP GAS TRAINSIZE
UPSTREAMVALVE
DOWNSTREAMVALVE
EMISSIONS LEVEL 09 ppm 15 ppm 20 ppm 30 ppm 60 ppm UC
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Model CBLE 125-800 HP Boilers
32
ALTITUDE(FT)
CORRECTIONFACTOR
ALTITUDE(FT)
CORRECTIONFACTOR
1000 104 6000 1252000 107 7000 130
3000 111 8000 135
4000 116 9000 140
5000 121 - -
To obtain minimum required gas pressure at altitudesabove 700 feet multiply the pressure by the listed factorsInches WC x 0577 = ozsq-inOzsq-in x 1732 = Inches WCInches WC x 00361= psigOzsq-in x 00625 = psigPsig x 2771 = Inches WCPsig x 160 = Ozsq-in
Table A1-22 Minimum Required Regulated Gas Pressure
Altitude Conversion
BOILERHP
TYPE OF GAS AND HEAT CONTENT
NATURAL GAS1000 (Btucu-ft)
PROPANE GAS2550 (Btucu-ft)
125 5103 2000
150 6124 2402
200 8165 3202
250 10206 4002
300 12247 4802
350 14280 5600
400 16329 6404
500 20415 8006
600 24494 9605
700 28576 11206
800 32659 12807
Table A1-23 Maximum Gas Consumption (CFH)
for Natural Gas and Propane Vapor
BOILER
HP
MODEL CB
CONNECTION SIZE
(IN NPT)
LOCATIONDIMENSION
ldquoArdquo (IN)
125-200 1-12 52
250-350 2 56
400 2 58
500 2-12 60
600 2-12 - 3 71
700-800 3 65
Figure A1-13 Standard Gas Train Connection Size and Location
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Model CBLE 125-800 HP Boilers
33
Oil-Fired Burners Fuel oil consumption information is shown on the boiler rating sheets in theDimensions and Rating Section
Figure A1-16 shows the oil connection sizes and locations for Model CB Boilersfiring No 2 oil
Figure A1-17 through Figure A1-18 show typical oil systems and layouts
Figure A1-19 and Figure A1-20 show the detail of an oil transfer tank (day tank)typically utilized to provide a storage reservoir between the oil system supply pumpand the boiler oil pump
General BoilerInformation
Table A1-24 shows blowdown tank sizing information
Table A1-25 provides heating surface information
Table A1-26 provides steam volume and disengaging area information
Table A1-27 provides recommended steam nozzle sizes
Table A1-28 provides recommended non-return valve sizes
Boiler RoomInformation
Figure A1-21 shows typical boiler room length requirements
Figure A1-22 shows typical boiler room width requirements
Figure A1-23 shows typical breeching arrangements
Stack SupportCapabilities
All standard Cleaver-Brooks Firetube Boilers with an LE option can support up to2000 lbs without additional support
LE Boilers 250 hp through 800 hp can be reinforced to support 3000 lbs
StackBreechingSize Criteria
The design of the stack and breeching must provide the required draft at each boilerflue gas outlet Proper draft is critical to burner performance
Although constant pressure at the flue gas outlet of the Model CB-LE is not requiredit is necessary to size the stackbreeching to limit flue gas pressure variation Theallowable pressure range is ndash025 WC to +025 WC
For additional information please review Section I4 General Engineering Data(Stacks) and Section F Stacks Stack and breeching sizes should always be providedby a reputable stack supplier who will design the stack and breeching system basedon the above criteria Your local Cleaver-Brooks authorized representative is capableof assisting in your evaluation of the stackbreeching design
Boiler RoomCombustion Air
When determining boiler room air requirements the size of the room air flow andvelocity of air must be reviewed as follows
1 Size (area) and location of air supply openings in boiler room
A Two (2) permanent air supply openings in the outer walls of the boiler room
are recommended Locate (1) at each end of the boiler room preferablybelow a height of 7 feet This allows air to sweep the length of the boiler
B Air supply openings can be louvered for weather protection but they shouldnot be covered with fine mesh wire as this type of covering has poor air flowqualities and is subject to clogging by dust or dirt
C A vent fan in the boiler room is not recommended as it could create a slightvacuum under certain conditions and cause variations in the quantity ofcombustion air This can result in unsatisfactory burner performance
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Model CBLE 125-800 HP Boilers
34
D Under no condition should the total area of the air supply openings be lessthan (1) square foot
E Size the openings by using the formulaArea (sq-ft) = CFMFPM
2 Amount of air required (cfm)
A Combustion Air = Rated bhp x 8 cfmbhp
B Ventilation Air = Maximum bhp x 2 cfmbhp
C Total recommended air = 10 cfmbhp - up to 1000 feet elevation Add 3percent more per 1000 feet of added elevation
3 Acceptable air velocity in Boiler Room (fpm)
A From floor to (7) foot height - 250 fpm
B Above (7) foot height - 500 fpm
Example Determine the area of the boiler room air supply openings for (1) 300 hpboiler at 800 feet altitude The air openings are to be 5 feet above floor level
bull Air required 300 x 10 = 3000 cfm (from 2B above)
bull Air velocity Up to 7 feet = 250 fpm (from 3 above)
bull Area Required Area = cfm = 3000250 = 12 sq-ft total
bull AreaOpening 122 = 6 sq-ftopening (2 required)
Notice
Consult local codes which may supersede these requirements
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Model CBLE 125-800 HP Boilers
35
This figure illustrates the basic gas valve arrangement on Cleaver-BrooksModel CB boiler and shows the contractors connection point The valves andcontrols between the contractor connection point and the gas main in thestreet are representative of a typical installation Actual requirements mayvary depending on local codes or local gas company requirements which
should be investigated prior to preparation of specifications and prior to con-struction
A Utilities service valveB Utilities service regulatorC Gas meterD Piping from meter to boiler
The size of the gas line from the meter to the gas pressure regulator at theboiler can be very important if gas pressures are marginal The gas line sizingis dependent on
1 Gas pressure at outlet of gas meter (C)2 Rate of gas flow required CFH3 Length of pipe run (D)4 Pressure required at contractor connection point
The local gas utility will advise the pressure that is available at the outlet oftheir meter
Figure A1-14 Typical Gas Piping Layout
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Model CBLE 125-800 HP Boilers
36
5
6
S
1
3
42
PILOT GAS LINE
S
S
MAIN GAS LINE
M M
ToBurner
GasSupply
11
10
97
12138
14 15
FLOW
FLOW
Figure A1-15 Model CB-LE Gas Train Components
BOILER
HP
MODEL CB
SUPPLYANDRE-
TURNCONN SIZES
(IN)(NPT)
A(IN)
RECOMMENDED OIL LINEA
SIZES(STANDARD PIPE)
(IN - IPS)
STOR-AGE
TANK TOBOILER
OR PUMPCONNECT
PUMPTO
BOILER
RE-TURN
LINE TOTANK
125150 200
34 12-12 1 1 1
250300350
34 34 1 1 1
400500600
34 11-34 1 1 1
700800
1 11-34 1 1 1
NOTE See No 2 Oil Line Sizing Instruction for systems with other conditions A For suction line condition with a maximum of 10 Feet of lift and a
total of 100 feet of suction line
Figure A1-16 No2 Oil Connection Size Location and Recommended Line Sizes
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Model CBLE 125-800 HP Boilers
37
Figure A1-17 No 2 Oil Piping Single Boiler
Installation Remote Oil Pump
Figure A1-18 No 2 Oil Piping Multiple Boiler
Installation Remote Oil Pumps
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Model CBLE 125-800 HP Boilers
38
Figure A1-19 No 2 Oil Piping Multiple Boiler
Installation
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Model CBLE 125-800 HP Boilers
39
Figure A1-20 No 2 Oil Piping Typical Arrangement
Table A1-24 Model CB-LE Blowdown
Tank Sizing
BOILER HP WATER (GAL)
125 97
150 118
200 145
250 146
300 176
350 210
400 177
500 209
600 250
700 800 296
NOTE Quantity of water removed from boiler by lowering normal water line 4
BOILER
HP
HEATING SURFACE (SQ-FT)
FIRESIDE WATERSIDE
125 625 679
150 750 820
200 1000 1092
250 1250 1346
300 1500 1623
350 1750 1932
400 2000 2151
500 2500 2691
600 3000 3262
700 800 3500 3810
Table A1-25 Heating Surface Model CB-LE
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Model CBLE 125-800 HP Boilers
40
BOILER HPSTEAM VOLUME CU-FT
STEAM DISENGAGING AREASQ-IN
HIGH PRESSUREA LOW PRESSUREB HIGH PRESSUREA LOW PRESSUREB
125 254 366 5371 5887
150 307 443 6511 7138
200 377 544 7985 8752
250 492 706 7980 8695
300 595 853 9651 10516
350 709 1017 11507 12538
400 721 979 9793 10593
500 837 1137 11376 12303
600 1015 1378 13787 14911
700-800 1198 1627 16273 17600
NOTE Based on normal water levelA Based on 150 psig design pressureB Based on 15 psig design pressure
Table A1-26 Steam Volume and Disengaging Area
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Model CBLE 125-800 HP Boilers
41
BOILERHP
BOILERCAPACITY(LBSHR)
OPERATING PRESSURES (PSIG)
50 75 100 125 150 175 200 250
100 3450
2-12 2-12 NA NA NA NA NA NA
125 4313 3 2-12 2-12 2-12 NA NA NA NA
150 5175 3 3 2-12 2-12 2-12 2-12 NA NA
200 6900 3 3 3 3 3 2-12 2-12 2-12
250 8625 4 3 3 3 3 3 3 3
300 10350 4 4 4 3 3 3 3 3
350 12025 4 4 4 4 4 3 3 3
400 13800 5 4 4 4 4 4 4 3
500 17210 6 5 5 4 4 4 4 4
600 20700 6 6 5 5 5 4 4 4
700 24150 6 6 6 5 5 5 5 4
800 27600 6 6 6 6 6 5 5 5
NOTE Valve sizes (300 Flanges) given in inchesStandard Non-Return valve selections limited to a maximum 2 to 1 turndown(50 of full load) selections based on typical non-return valve sizing recommen-dations For final valve selection contact your C-B authorized representative Forhigh turndown applications see Boiler Book Section I3 Table I3-3 Indicates pressure drop of less than 75 psig All other selections are less than6 psig pressure drop
Boiler HP
OPERATINGPRESSURE
PSIG125 150 200 250 300 350 400 500 600 700 800
15 8 8 10 10 12 12 12 12 12 12 12
30 6 6 8 8 8 10 10 10 12 12 12
40 6 6 6 8 8 8 10 10 10 12 12
50 6 6 6 6 8 8 8 10 10 10 12
75 4 4 6 6 6 8 8 8 8 10 10
100 4 4 6 6 6 6 6 8 8 8 10
125 4 4 4 6 6 6 6 8 8 8 8
150 3 3 4 4 6 6 6 6 6 8 8
200 25 3 4 4 4 4 6 6 6 6 6
250 25 3 3 4 4 4 4 6 6 6 6
NOTES1 Steam nozzle sizes given in inches2 Recommended steam nozzle sizes based on 4000 to 5000 fpm steam velocity3 All standard steam nozzle sizes for 150 psig design pressure or greater are the sameas 125 psig operating pressure on the above table To increase or decrease the standardsize request the change with your local Cleaver-Brooks authorized representative4 Shaded area denotes special surge load baffles must be installed to avoid possible wa-ter carry-over5 For incremental operating pressures see Table I3-1 Steam Systems Fundamentals
Table A1-28 Recommended Steam Nozzle Size (for
4000 to 5000 fpm nozzle velocity)
Table A1-29 Recommended Non-Return Valve Size
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Model CBLE 125-800 HP Boilers
42
1 Shortest boiler room length (Dwg A) is obtained by allowing for possible future tube replacement (from front or rearof boiler) through a window or doorway Allowance is only made for minimum door swing at each end of the boilerThis arrangement provides sufficient aisle space at the front of the boiler but a ldquotightrdquo space condition at the rear
If space permits approximately 15 additional feet should be allowed at the rear for additional aisle and workingspace
2 Next shortest boiler room length (Dwg B) is obtained by allowing for possible future tube replacement from thefront of the boiler Allowance is only made for minimum door swing at the rear
If space permits approximately 15 additional feet should be allowed at the rear for additional aisle and workingspace
3 A slightly longer boiler room (Dwg C) is obtained by allowing for possible future tube replacement from the rear ofthe boiler Allowance for door swing at the front provides sufficient aisle and working space at the front
Figure A1-21 Boiler Room Length (Typical Layouts)
BOILER HP 125-200 250-350 400-800
Dimension A 82 93 102
Dimension B 115 141 171
NOTES1 Recommended Minimum Distance Between Boiler and Wall Dimen-
sion ldquoArdquo allows for a ldquoclearrdquo 42 aisle between the water col-umn on the boiler and the wall If space permits this aisle
should be widened 2 Recommended Minimum Distance Between BoilersDimension ldquoBrdquo between boilers allows for a ldquoclearrdquo aisle of42 - 125 -200 hp48 - 250-350 hp60 - 400-800 hpIf space permits this aisle should be widened
Figure A1-22 Boiler Room Width (Typical Layout)
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Model CBLE 125-800 HP Boilers
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Model CBLE 125-800 HP Boilers
22
BOILER HP A B C D E F G
400 6 14 134 50 78 6-12 58-78
500 6 14 155 50 78 6-12 58-78
600 6 14 187 50 78 6-12 58-78
700-800 6 14 220 50 78 6-12 58-78
NOTE1 All numbers in table are in inches2 6-inch high mounting piers recommended for use beneath the boiler base frame The use of these piers provides in-
creased inspection accessibility to the piping beneath the boiler and added height for washing down the area beneaththe boiler
Figure A1-9 Model CB-LE Boiler Mounting Piers (96rdquo)
CBLE 250-350HP
CBLE 400-800HP
Motor HP Hole Number
75 1
15 1
25 2
40 3
Motor HP Hole Number
10 1
20 1
30 250 2
75 3
Figure A1-10 Front Davit Support
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Model CBLE 125-800 HP Boilers
23
BOILERHP
VIEW
ALL DIMENSIONS IN INCHES
A B C D E
125 All B 80-14 29-34 70-12 10 3
150 All B 80-14 29-34 83-12 10 3
200 All B 80-14 29-34 114-12 10 3
250Steam B 99 36 72 10 3
Hot Water B 99 36 81 10 3
300
Steam B 99 36 99 10 3
Hot Water B 99 36 108 10 3
350Steam B 99 36 129 10 3
Hot Water B 99 36 138 10 3
400Steam B 119 35-34 78 11 3
Hot Water B 119 35-34 78 11 3
500Steam B 119 35-34 99 11 3
Hot Water B 119 35-34 99 11 3
600Steam B 119 35-34 131 11 3
Hot Water B 119 35-34 131 11 3
700 amp 800Steam B 119 35-34 164 11 3
Hot Water B 119 35-34 164 11 3
NOTE A B and C dimensions may vary by 12 inch
Figure A1-11 Lifting Lug Location Model CB-LE Boilers
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Model CBLE 125-800 HP Boilers
24
PERFORMANCE DATA
The Low Emission Option provides NOx reduction at current published andpredicted fuel-to-steam efficiencies
Specifying BoilerEfficiency
Cleaver-Brooks offers an industry leading fuel-to-steam boiler efficiency guaranteefor Model CB-LE Firetube Boilers The guarantee is based on the fuel-to-steam
efficiencies shown in the efficiency tables and the following conditions Theefficiency percent number is only meaningful if the specific conditions of theefficiency calculations are clearly stated in the specification (see Cleaver-Brookspublication CB-7768 for a detailed description of efficiency calculations)
When specifying the efficiencies in the tables be sure to include the specificguarantee conditions to maximize the effectiveness of your efficiency specification Ifyou have any questions regarding the efficiency specifications please contact yourlocal Cleaver-Brooks authorized representative
EfficiencySpecification
The boiler manufacturer shall guarantee that at the time of startup the boiler willachieve fuel-to-steam efficiency (as shown in Table A1-16 and Table A1-17) at100 firing rate (add efficiency guarantees at 25 50 and 75 of rating if
required) If the boiler(s) fail to achieve the corresponding guaranteed efficiency aspublished the boiler manufacturer will rebate to the ultimate boiler owner tenthousand dollars ($10000) for every full efficiency point (10) that the actualefficiency is below the guaranteed level
The specified boiler efficiency is based on the following conditions
1 Fuel specification used to determine boiler efficiency
bull Natural Gas
Carbon (wt) = 6998Hydrogen (wt) = 2231Sulfur (wt) = 00
Heating value Btulb = 21830bull No 2 Oil
Carbon (wt) = 858Hydrogen (wt) = 127Sulfur (wt) = 02Heating value Btulb = 19420
No 6 Oil
Carbon (wt) = 866Hydrogen (wt) = 109Sulfur (wt) = 209Heating value Btulb = 18830
2 Efficiencies are based on ambient air temperature of 80 degF relative humidity of30 and 15 excess air in the exhaust flue gas
3 Efficiencies are based on manufacturerrsquos published radiation and convectionlosses (For Cleaver-Brooks radiation and convection losses see BoilerEfficiency Facts Guide publication number CB-7767)
4 Any efficiency verification testing will be based on the stack loss method
For efficiencies and stack temperatures at operating pressures not listed followthese procedures
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Model CBLE 125-800 HP Boilers
25
When the operating steam pressure is between 10 psig and 125 psig interpolatethe values from the efficiency tables
When the operating steam pressure is above 125 psig estimated efficiency can becalculated as follows
Example
Boiler 350 hpFuel natural gas
Operating steam pressure 200 psig
Find the fuel-to-steam efficiency at 100 firing rate From Table A1-16 for a 350hp boiler operating at 100 firing rate and an operating steam pressure of 125psig the efficiency is 825
Using Figure A1-12 note that the stack temperature increases 36 degF at the higheroperating pressure To estimate boiler efficiency use this rule of thumb For every40 degF increase in stack temperature efficiency decreases by 1 Since the stacktemperature rise is 36 degF the decrease in the boiler efficiency at 200 psig operatingpressure is calculated as follows 3640 =9 Therefore the boiler efficiency at200 psig operating pressure is 825 -9 = 816
Emissions The emission data included in this section consists of typical emission levels forModel CB boilers equipped with 60 30 25 and 20 ppm LE Options when firingnatural gas and No 2 oil
Notice
The data in Table A1-18 and Table A1-19 represent typical emission levels only
Guaranteed emission levels are available from your local Cleaver-Brooks authorized
representative
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Model CBLE 125-800 HP Boilers
26
BOILER
HP
OPERATING PRESSURE = 10 psig OPERATING PRESSURE = 125 psig
OF LOAD OF LOAD
25 50 75 100 25 50 75 100
125 833 836 834 832 804 809 810 810
150 844 846 845 843 815 820 820 821
200 850 853 851 849 822 827 827 827
250 850 847 840 833 820 820 816 813
300 853 853 846 839 826 827 822 819
350 853 857 852 845 826 832 828 825
400 845 847 846 844 818 822 824 822
500 855 857 855 852 828 832 833 831
600 857 860 858 856 829 835 836 835
700 857 862 860 857 830 836 836 836
800 858 861 859 856 831 836 837 835
Table A1-16 Predicted Fuel-to-Steam Efficiencies - Natural Gas
Figure A1-12 Predicted Stack Temperature Increase for Pressure Greater Than 125 psig
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Model CBLE 125-800 HP Boilers
27
Table A1-18 CB-LE Boilers - Natural Gas Emission Levels
POLLUTANT
ESTIMATED LEVEL
60 ppm 30 ppm 25 ppm 20 ppm 15 ppm 9 ppm
CO ppmA
lbMMBtu
50150B
004011
50150B
004011
50150B
004011
50150B
004011
50
004
50
004
NOx ppmA
lbMMBtu
60
007
30
0035
25
003
20
0024
15
0018
9
0011
SOx ppmA
lbMMBtu
1
0001
1
0001
1
0001
1
0001
1
0001
1
0001
HCVOC5 ppmA
lbMMBtu
10
0004
10
0004
10
0004
10
0004
10
0004
10
0004
PM ppmA
lbMMBtu
-
001
-
001
-
001
-
001
-
001
-
001
A ppm levels are given on a dry volume basis and corrected to 3 oxygen (15 excess air)
B CO emission for 60 30 25 amp 20 ppm system is 50 ppm (004 lbMMBtu) when boiler is operating above 50 of rated capacity
CO emission is 150 ppm (011 lbMMBtu) when boiler is operating below 50 of rated capacity
Table A1-17 Predicted Fuel-to-Steam Efficiencies - No 2 Oil
BOILER
HP
OPERATING PRESSURE = 10 psig OPERATING PRESSURE = 125 psig
OF LOAD OF LOAD
25 50 75 100 25 50 75 100
125 867 869 867 866 837 842 843 843
150 878 880 878 876 848 853 853 854
200 884 887 884 882 856 860 860 860
250 883 881 874 867 853 853 849 847
300 886 887 880 873 859 860 855 852
350 886 890 885 878 859 866 861 858
400 879 881 879 876 851 855 856 855
500 889 890 889 886 861 865 866 864
600 890 894 892 890 862 868 869 868
700 891 895 893 891 863 869 870 869
800 892 895 893 890 864 869 870 868
Table A1-19 CB-LE Boilers - No 2 Oil Emission Levels
POLLUTANTESTIMATED LEVEL
60 ppm LE Option 30 25 20 ppm LE Option 15 ppm 9 ppm
CO ppmA
lbMMBtu
50
0039
50
0039
50
0039
50
0039
NOx ppmA
lbMMBtu140
018690
012085
011370
0093
SOx ppmA
lbMMBtu
278
052
278
052
278
052
278
052
HCVOCs ppmA
lbMMBtu
4
0002
4
0002
4
0002
4
0002
PM ppmA
lbMMBtu
-
0025
-
0025
-
0025
-
0025
A ppm levels are given on a dry volume basis and corrected to 3 oxygen (15 excess air)
BASED ON THE FOLLOWING CONSTITUENT LEVELS
Fuel-bound Nitrogen content = 0015 by weight
Sulfur content = 05 by weight
Ash content = 001 by weight
09-09
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Model CBLE 125-800 HP Boilers
28
ENGINEERING DATA
Sound Level Table A1-20 gives a summary of predicted sound pressure levels for Model CBboilers with 30 ppm LE Options Contact your local Cleaver-Brooks authorizedrepresentative for sound levels or other LE Options
Units - The units for the sound level tables are dbA (decibels measured on the A-weighted scale) in reference to 00002 microbars (20 micro-Newtons per square
meter) Their reference are standardly used in specifying and reporting soundpressure levels on industrial equipment
Test Method - The sound pressure levels in the above tables were obtained fromtests in accordance with the ldquoABMA Test Code for the Measurement of Sound fromPackaged Boilersrdquo In accordance with this code the sound pressure levels reportedwere measured on the boiler centerline 4-12 feet vertically above the bottom of thebase rails and 3 feet horizontally in front of the end of the blower motor or frontsurface of the electrical cabinet
Sound Level Meter - The sound level meter used complies with ANSI S14 Type 1(Precision) The readings are taken with the meter set for slow response andcorrected for background levels
Sound Pressure - The large size boilers the need for auxiliary equipment and thenecessary interconnecting piping make it impractical (and sometimes impossible) toprovide a boiler testing environment which is suitable for taking the data needed todevelop Sound Pressure Power levels
Typical Values - Sound pressure levels (dbA) for the same boiler will vary betweenboiler rooms Sound levels will vary with motor type NOx levels and altitudes Inaddition variations will occur between different people using different sound meterson the same boiler And finally no two boilers can be expected to give precisely thesame sound levels For these reasons we can only predict but not guarantee soundlevels (dbA)
BOILER HP 125 150 200 250 300 350 400 500 600 700 800
HFO dbA 84 84 84 83 84 85 84 85 85 88 90
LFO dbA 82 82 83 81 82 83 82 83 83 84 89
HFG dbA 82 82 83 82 83 84 83 83 85 87 90
LFG dbA 81 81 82 81 82 83 81 81 82 84 88
NOTES1 Sound pressure levels measured on boilers operating in various locations and ex-
pressed in dbA are as shown2 Based on standard altitude fans and fan motors 60 Hz3 Contact your local Cleaver-Brooks authorized representative for sound levels of 60 25or 20 ppm LE Options
ABBREVIATIONS
HF = High Fire LF = Low Fire O = Oil G = Gas
Table A1-20 Model CBLE Predicted Sound Levels 30 ppm NOx Systemss
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Model CBLE 125-800 HP Boilers
29
Gas-Fired Burners Table A1-21 shows gas pressure with standard over- and undersized gas trains
Table A1-22 shows minimum required gas pressure altitude conversion
Figure A1-13 shows standard gas train sizes and locations for Model CB FiretubeBoilers
Figure A1-14 shows typical gas train piping layouts for multiple boiler applications
Figure A1-15 shows standard gas train components
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Model CBLE 125-800 HP Boilers
30
Table A1-21 Standard Undersize and Oversize Gas Trains
CBLE
BOILER HP GAS TRAINSIZE
UPSTREAMVALVE
DOWNSTREAMVALVE
EMISSIONS LEVEL 09 ppm 15 ppm 20 ppm 30 ppm 60 ppm UC
125 HP 15 in BB BB 33 - 49 psi 33 - 49 psi 08 - 50 psi 07 - 50 psi 07 - 50 psi 07 - 50 ps
125 HP 15 in PC PC 34 - 50 psi 34 - 50 psi 09 - 50 psi 08 - 50 psi 08 - 50 psi 08 - 50 ps
125 HP 20 in BB BB 31 - 33 psi 31 - 33 psi 06 - 08 psi 06 - 07 psi 05 - 07 psi 05 - 07 ps
125 HP 20 in PC PC 31 - 34 psi 31 - 34 psi 06 - 09 psi 06 - 08 psi 06 - 08 psi 05 - 08 ps
125 HP 25 in PC PC 30 - 31 psi 30 - 31 psi 04 - 06 psi 04 - 06 psi 04 - 05 psi 04 - 05 ps
125 HP 30 in PC PC 29 - 30 psi 29 - 30 psi 04 - 04 psi 04 - 04 psi 04 - 04 psi 03 - 04 ps
125 HP 40 in PC PC 29 - 29 psi 29 - 29 psi 04 - 04 psi 03 - 04 psi 03 - 04 psi 03 - 03 ps
150 HP 15 in BB BB 37 - 55 psi 39 - 58 psi 10 - 47 psi 09 - 50 psi 09 - 50 psi 09 - 50 ps
150 HP 15 in PC PC 38 - 57 psi 40 - 60 psi 11 - 42 psi 11 - 50 psi 10 - 50 psi 10 - 50 ps
150 HP 20 in BB BB 34 - 37 psi 36 - 39 psi 07 - 10 psi 06 - 09 psi 06 - 09 psi 06 - 09 ps
150 HP 20 in PC PC 34 - 38 psi 36 - 40 psi 07 - 11 psi 07 - 11 psi 07 - 10 psi 06 - 10 ps
150 HP 25 in PC PC 32 - 34 psi 34 - 36 psi 05 - 07 psi 04 - 06 psi 04 - 06 psi 04 - 06 ps
150 HP 30 in PC PC 32 - 32 psi 34 - 34 psi 04 - 05 psi 04 - 04 psi 04 - 04 psi 03 - 04 ps
150 HP 40 in PC PC 31 - 32 psi 33 - 34 psi 04 - 04 psi 03 - 04 psi 03 - 04 psi 03 - 03 ps
200 HP 15 in BB BB 46 - 69 psi 50 - 75 psi 16 - 50 psi 15 - 50 psi 15 - 50 ps
200 HP 15 in PC PC 48 - 72 psi 52 - 78 psi 18 - 50 psi 17 - 50 psi 17 - 50 ps
200 HP 20 in BB BB 41 - 46 psi 45 - 50 psi 10 - 16 psi 10 - 15 psi 10 - 15 ps
200 HP 20 in PC PC 41 - 48 psi 45 - 52 psi 11 - 18 psi 11 - 17 psi 10 - 17 ps
200 HP 25 in PC PC 38 - 41 psi 42 - 45 psi 07 - 10 psi 07 - 10 psi 06 - 10 ps
200 HP 30 in PC PC 36 - 38 psi 40 - 42 psi 06 - 07 psi 05 - 07 psi 05 - 06 ps
200 HP 40 in PC PC 36 - 36 psi 40 - 40 psi 05 - 06 psi 05 - 05 psi 04 - 05 ps
250 HP 15 in BB BB 41 - 62 psi 44 - 67 psi 24 - 50 psi 24 - 27 psi 24 - 26 psi 23 - 26 ps
250 HP 15 in PC PC 45 - 67 psi 48 - 72 psi 28 - 50 psi 27 - 28 psi 27 - 27 psi 27 - 27 ps
250 HP 20 in BB BB 33 - 38 psi 37 - 41 psi 16 - 24 psi 16 - 24 psi 16 - 24 psi 15 - 23 ps
250 HP 20 in PC PC 34 - 40 psi 37 - 43 psi 17 - 28 psi 17 - 27 psi 16 - 27 psi 16 - 27 ps
250 HP 25 in PC PC 29 - 33 psi 32 - 37 psi 11 - 16 psi 11 - 16 psi 11 - 16 psi 10 - 15 ps
250 HP 30 in PC PC 27 - 29 psi 31 - 32 psi 09 - 11 psi 09 - 11 psi 09 - 11 psi 09 - 10 ps
250 HP 40 in PC PC 26 - 27 psi 29 - 31 psi 08 - 09 psi 08 - 09 psi 08 - 09 psi 08 - 09 ps
300 HP 15 in - 20 in BB BB 55 - 83 psi 57 - 85 psi 30 - 50 psi 30 - 36 psi 30 - 35 psi 30 - 35 ps
300 HP 15 in - 20 in PC PC 58 - 87 psi 60 - 90 psi 33 - 50 psi 33 - 37 psi 33 - 36 psi 33 - 36 ps
300 HP 20 in BB BB 46 - 55 psi 47 - 57 psi 21 - 30 psi 21 - 30 psi 20 - 30 psi 20 - 30 ps
300 HP 20 in PC PC 47 - 58 psi 48 - 60 psi 22 - 33 psi 22 - 33 psi 21 - 33 psi 21 - 33 ps
300 HP 30 in PC PC 39 - 46 psi 40 - 47 psi 13 - 21 psi 13 - 21 psi 12 - 20 psi 12 - 20 ps
300 HP 40 in PC PC 37 - 39 psi 39 - 40 psi 11 - 13 psi 11 - 13 psi 10 - 12 psi 10 - 12 ps
350 HP 15 in - 20 in BB BB 64 - 90 psi 62 - 90 psi 42 - 50 psi 42 - 50 psi 41 - 50 psi 41 - 50 ps
350 HP 15 in - 20 in PC PC 68 - 90 psi 66 - 90 psi 46 - 50 psi 46 - 50 psi 45 - 50 psi 45 - 50 ps
350 HP 20 in BB BB 54 - 64 psi 53 - 62 psi 32 - 42 psi 32 - 42 psi 32 - 41 psi 31 - 41 ps
350 HP 20 in PC PC 56 - 68 psi 54 - 66 psi 34 - 46 psi 34 - 46 psi 33 - 45 psi 33 - 45 ps
350 HP 25 in PC PC 43 - 54 psi 42 - 53 psi 21 - 32 psi 21 - 32 psi 20 - 32 psi 20 - 31 ps
350 HP 30 in PC PC 40 - 43 psi 38 - 42 psi 17 - 21 psi 17 - 21 psi 17 - 20 psi 16 - 20 ps
350 HP 40 in PC PC 37 - 40 psi 36 - 38 psi 15 - 17 psi 15 - 17 psi 14 - 17 psi 14 - 16 ps
400 HP 15 in - 20 in BB BB 69 - 90 psi 69 - 90 psi 46 - 50 psi 46 - 50 psi 45 - 50 psi 45 - 50 ps
400 HP 15 in - 20 in PC PC 74 - 90 psi 75 - 90 psi 51 - 87 psi 51 - 77 psi 51 - 77 psi 51 - 77 ps
400 HP 20 in BB BB 55 - 69 psi 56 - 69 psi 32 - 46 psi 32 - 46 psi 32 - 45 psi 32 - 45 ps
400 HP 20 in PC PC 57 - 74 psi 58 - 75 psi 34 - 50 psi 34 - 50 psi 34 - 50 psi 34 - 50 ps
400 HP 25 in PC PC 41 - 55 psi 42 - 56 psi 18 - 32 psi 18 - 32 psi 18 - 32 psi 18 - 32 ps
400 HP 30 in PC PC 37 - 41 psi 38 - 42 psi 13 - 18 psi 13 - 18 psi 13 - 18 psi 13 - 18 ps
400 HP 40 in PC PC 34 - 37 psi 35 - 38 psi 11 - 13 psi 10 - 13 psi 10 - 13 psi 10 - 13 ps
500 HP 20 in - 25 in BB PC 58 - 76 psi 58 - 76 psi 46 - 50 psi 46 - 50 psi 45 - 50 psi 45 - 50 ps
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Model CBLE 125-800 HP Boilers
31
BB = Butter Ball PC = Plug Cock
NOTE In cases where the gas train increases in size after the regulating valve two diameters are listed The first number is the customer connection size
500 HP 20 in - 25 in PC PC 60 - 83 psi 60 - 83 psi 48 - 50 psi 47 - 50 psi 47 - 50 psi 47 - 50 psi
500 HP 25 in PC PC 39 - 58 psi 39 - 58 psi 27 - 46 psi 27 - 46 psi 27 - 45 psi 26 - 45 psi
500 HP 30 in PC PC 33 - 39 psi 33 - 39 psi 20 - 27 psi 20 - 27 psi 20 - 27 psi 20 - 26 psi
500 HP 40 in PC PC 28 - 33 psi 28 - 33 psi 16 - 20 psi 16 - 20 psi 15 - 20 psi 15 - 20 psi
600 HP 20 in - 25 in BB PC 80 - 90 psi 80 - 90 psi 65 - 90 psi 65 - 90 psi 64 - 89 psi 63 - 88 psi
600 HP 20 in - 25 in PC PC 82 - 90 psi 82 - 90 psi 67 - 100 psi 67 - 100 psi 66 - 99 psi 66 - 99 psi
600 HP 25 in PC PC 54 - 80 psi 54 - 80 psi 39 - 50 psi 38 - 50 psi 38 - 50 psi 37 - 50 psi
600 HP 25 in - 30 in PC PC 52 - 54 psi 52 - 54 psi 37 - 39 psi 36 - 38 psi 35 - 38 psi 35 - 37 psi
600 HP 30 in PC PC 43 - 52 psi 43 - 52 psi 28 - 37 psi 27 - 36 psi 27 - 35 psi 26 - 35 psi
600 HP 40 in PC PC 37 - 43 psi 37 - 43 psi 22 - 28 psi 21 - 27 psi 20 - 27 psi 20 - 26 psi
700 HP 20 in - 30 in BB PC 110 - 150 psi 107 - 150 psi 87 - 131 psi 86 - 130 psi 86 - 129 psi 86 - 128 psi
700 HP 20 in - 30 in PC PC 113 - 150 psi 110 - 150 psi 90 - 135 psi 89 - 134 psi 89 - 134 psi 89 - 133 psi
700 HP 25 in - 30 in PC PC 71 - 90 psi 68 - 90 psi 48 - 50 psi 47 - 50 psi 47 - 50 psi 46 - 50 psi
700 HP 30 in PC PC 60 - 71 psi 57 - 68 psi 36 - 48 psi 36 - 47 psi 35 - 47 psi 35 - 46 psi
700 HP 40 in PC PC 51 - 60 psi 48 - 57 psi 28 - 36 psi 27 - 36 psi 27 - 35 psi 26 - 35 psi
800 HP 20 in - 30 in BB PC 108 - 150 psi 107 - 150 psi 106 - 150 psi
800 HP 20 in - 30 in PC PC 112 - 150 psi 111 - 150 psi 110 - 150 psi800 HP 25 in - 30 in PC PC 61 - 90 psi 60 - 100 psi 59 - 100 psi
800 HP 30 in PC PC 48 - 61 psi 47 - 50 psi 46 - 50 psi
800 HP 40 in PC PC 35 - 48 psi 34 - 47 psi 34 - 46 psi
Standard Gas Train size is highlighted
Table A1-21 Standard Undersize and Oversize Gas Trains (Continued)
CBLE
BOILER HP GAS TRAINSIZE
UPSTREAMVALVE
DOWNSTREAMVALVE
EMISSIONS LEVEL 09 ppm 15 ppm 20 ppm 30 ppm 60 ppm UC
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Model CBLE 125-800 HP Boilers
32
ALTITUDE(FT)
CORRECTIONFACTOR
ALTITUDE(FT)
CORRECTIONFACTOR
1000 104 6000 1252000 107 7000 130
3000 111 8000 135
4000 116 9000 140
5000 121 - -
To obtain minimum required gas pressure at altitudesabove 700 feet multiply the pressure by the listed factorsInches WC x 0577 = ozsq-inOzsq-in x 1732 = Inches WCInches WC x 00361= psigOzsq-in x 00625 = psigPsig x 2771 = Inches WCPsig x 160 = Ozsq-in
Table A1-22 Minimum Required Regulated Gas Pressure
Altitude Conversion
BOILERHP
TYPE OF GAS AND HEAT CONTENT
NATURAL GAS1000 (Btucu-ft)
PROPANE GAS2550 (Btucu-ft)
125 5103 2000
150 6124 2402
200 8165 3202
250 10206 4002
300 12247 4802
350 14280 5600
400 16329 6404
500 20415 8006
600 24494 9605
700 28576 11206
800 32659 12807
Table A1-23 Maximum Gas Consumption (CFH)
for Natural Gas and Propane Vapor
BOILER
HP
MODEL CB
CONNECTION SIZE
(IN NPT)
LOCATIONDIMENSION
ldquoArdquo (IN)
125-200 1-12 52
250-350 2 56
400 2 58
500 2-12 60
600 2-12 - 3 71
700-800 3 65
Figure A1-13 Standard Gas Train Connection Size and Location
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Model CBLE 125-800 HP Boilers
33
Oil-Fired Burners Fuel oil consumption information is shown on the boiler rating sheets in theDimensions and Rating Section
Figure A1-16 shows the oil connection sizes and locations for Model CB Boilersfiring No 2 oil
Figure A1-17 through Figure A1-18 show typical oil systems and layouts
Figure A1-19 and Figure A1-20 show the detail of an oil transfer tank (day tank)typically utilized to provide a storage reservoir between the oil system supply pumpand the boiler oil pump
General BoilerInformation
Table A1-24 shows blowdown tank sizing information
Table A1-25 provides heating surface information
Table A1-26 provides steam volume and disengaging area information
Table A1-27 provides recommended steam nozzle sizes
Table A1-28 provides recommended non-return valve sizes
Boiler RoomInformation
Figure A1-21 shows typical boiler room length requirements
Figure A1-22 shows typical boiler room width requirements
Figure A1-23 shows typical breeching arrangements
Stack SupportCapabilities
All standard Cleaver-Brooks Firetube Boilers with an LE option can support up to2000 lbs without additional support
LE Boilers 250 hp through 800 hp can be reinforced to support 3000 lbs
StackBreechingSize Criteria
The design of the stack and breeching must provide the required draft at each boilerflue gas outlet Proper draft is critical to burner performance
Although constant pressure at the flue gas outlet of the Model CB-LE is not requiredit is necessary to size the stackbreeching to limit flue gas pressure variation Theallowable pressure range is ndash025 WC to +025 WC
For additional information please review Section I4 General Engineering Data(Stacks) and Section F Stacks Stack and breeching sizes should always be providedby a reputable stack supplier who will design the stack and breeching system basedon the above criteria Your local Cleaver-Brooks authorized representative is capableof assisting in your evaluation of the stackbreeching design
Boiler RoomCombustion Air
When determining boiler room air requirements the size of the room air flow andvelocity of air must be reviewed as follows
1 Size (area) and location of air supply openings in boiler room
A Two (2) permanent air supply openings in the outer walls of the boiler room
are recommended Locate (1) at each end of the boiler room preferablybelow a height of 7 feet This allows air to sweep the length of the boiler
B Air supply openings can be louvered for weather protection but they shouldnot be covered with fine mesh wire as this type of covering has poor air flowqualities and is subject to clogging by dust or dirt
C A vent fan in the boiler room is not recommended as it could create a slightvacuum under certain conditions and cause variations in the quantity ofcombustion air This can result in unsatisfactory burner performance
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Model CBLE 125-800 HP Boilers
34
D Under no condition should the total area of the air supply openings be lessthan (1) square foot
E Size the openings by using the formulaArea (sq-ft) = CFMFPM
2 Amount of air required (cfm)
A Combustion Air = Rated bhp x 8 cfmbhp
B Ventilation Air = Maximum bhp x 2 cfmbhp
C Total recommended air = 10 cfmbhp - up to 1000 feet elevation Add 3percent more per 1000 feet of added elevation
3 Acceptable air velocity in Boiler Room (fpm)
A From floor to (7) foot height - 250 fpm
B Above (7) foot height - 500 fpm
Example Determine the area of the boiler room air supply openings for (1) 300 hpboiler at 800 feet altitude The air openings are to be 5 feet above floor level
bull Air required 300 x 10 = 3000 cfm (from 2B above)
bull Air velocity Up to 7 feet = 250 fpm (from 3 above)
bull Area Required Area = cfm = 3000250 = 12 sq-ft total
bull AreaOpening 122 = 6 sq-ftopening (2 required)
Notice
Consult local codes which may supersede these requirements
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Model CBLE 125-800 HP Boilers
35
This figure illustrates the basic gas valve arrangement on Cleaver-BrooksModel CB boiler and shows the contractors connection point The valves andcontrols between the contractor connection point and the gas main in thestreet are representative of a typical installation Actual requirements mayvary depending on local codes or local gas company requirements which
should be investigated prior to preparation of specifications and prior to con-struction
A Utilities service valveB Utilities service regulatorC Gas meterD Piping from meter to boiler
The size of the gas line from the meter to the gas pressure regulator at theboiler can be very important if gas pressures are marginal The gas line sizingis dependent on
1 Gas pressure at outlet of gas meter (C)2 Rate of gas flow required CFH3 Length of pipe run (D)4 Pressure required at contractor connection point
The local gas utility will advise the pressure that is available at the outlet oftheir meter
Figure A1-14 Typical Gas Piping Layout
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Model CBLE 125-800 HP Boilers
36
5
6
S
1
3
42
PILOT GAS LINE
S
S
MAIN GAS LINE
M M
ToBurner
GasSupply
11
10
97
12138
14 15
FLOW
FLOW
Figure A1-15 Model CB-LE Gas Train Components
BOILER
HP
MODEL CB
SUPPLYANDRE-
TURNCONN SIZES
(IN)(NPT)
A(IN)
RECOMMENDED OIL LINEA
SIZES(STANDARD PIPE)
(IN - IPS)
STOR-AGE
TANK TOBOILER
OR PUMPCONNECT
PUMPTO
BOILER
RE-TURN
LINE TOTANK
125150 200
34 12-12 1 1 1
250300350
34 34 1 1 1
400500600
34 11-34 1 1 1
700800
1 11-34 1 1 1
NOTE See No 2 Oil Line Sizing Instruction for systems with other conditions A For suction line condition with a maximum of 10 Feet of lift and a
total of 100 feet of suction line
Figure A1-16 No2 Oil Connection Size Location and Recommended Line Sizes
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Model CBLE 125-800 HP Boilers
37
Figure A1-17 No 2 Oil Piping Single Boiler
Installation Remote Oil Pump
Figure A1-18 No 2 Oil Piping Multiple Boiler
Installation Remote Oil Pumps
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Model CBLE 125-800 HP Boilers
38
Figure A1-19 No 2 Oil Piping Multiple Boiler
Installation
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Model CBLE 125-800 HP Boilers
39
Figure A1-20 No 2 Oil Piping Typical Arrangement
Table A1-24 Model CB-LE Blowdown
Tank Sizing
BOILER HP WATER (GAL)
125 97
150 118
200 145
250 146
300 176
350 210
400 177
500 209
600 250
700 800 296
NOTE Quantity of water removed from boiler by lowering normal water line 4
BOILER
HP
HEATING SURFACE (SQ-FT)
FIRESIDE WATERSIDE
125 625 679
150 750 820
200 1000 1092
250 1250 1346
300 1500 1623
350 1750 1932
400 2000 2151
500 2500 2691
600 3000 3262
700 800 3500 3810
Table A1-25 Heating Surface Model CB-LE
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Model CBLE 125-800 HP Boilers
40
BOILER HPSTEAM VOLUME CU-FT
STEAM DISENGAGING AREASQ-IN
HIGH PRESSUREA LOW PRESSUREB HIGH PRESSUREA LOW PRESSUREB
125 254 366 5371 5887
150 307 443 6511 7138
200 377 544 7985 8752
250 492 706 7980 8695
300 595 853 9651 10516
350 709 1017 11507 12538
400 721 979 9793 10593
500 837 1137 11376 12303
600 1015 1378 13787 14911
700-800 1198 1627 16273 17600
NOTE Based on normal water levelA Based on 150 psig design pressureB Based on 15 psig design pressure
Table A1-26 Steam Volume and Disengaging Area
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Model CBLE 125-800 HP Boilers
41
BOILERHP
BOILERCAPACITY(LBSHR)
OPERATING PRESSURES (PSIG)
50 75 100 125 150 175 200 250
100 3450
2-12 2-12 NA NA NA NA NA NA
125 4313 3 2-12 2-12 2-12 NA NA NA NA
150 5175 3 3 2-12 2-12 2-12 2-12 NA NA
200 6900 3 3 3 3 3 2-12 2-12 2-12
250 8625 4 3 3 3 3 3 3 3
300 10350 4 4 4 3 3 3 3 3
350 12025 4 4 4 4 4 3 3 3
400 13800 5 4 4 4 4 4 4 3
500 17210 6 5 5 4 4 4 4 4
600 20700 6 6 5 5 5 4 4 4
700 24150 6 6 6 5 5 5 5 4
800 27600 6 6 6 6 6 5 5 5
NOTE Valve sizes (300 Flanges) given in inchesStandard Non-Return valve selections limited to a maximum 2 to 1 turndown(50 of full load) selections based on typical non-return valve sizing recommen-dations For final valve selection contact your C-B authorized representative Forhigh turndown applications see Boiler Book Section I3 Table I3-3 Indicates pressure drop of less than 75 psig All other selections are less than6 psig pressure drop
Boiler HP
OPERATINGPRESSURE
PSIG125 150 200 250 300 350 400 500 600 700 800
15 8 8 10 10 12 12 12 12 12 12 12
30 6 6 8 8 8 10 10 10 12 12 12
40 6 6 6 8 8 8 10 10 10 12 12
50 6 6 6 6 8 8 8 10 10 10 12
75 4 4 6 6 6 8 8 8 8 10 10
100 4 4 6 6 6 6 6 8 8 8 10
125 4 4 4 6 6 6 6 8 8 8 8
150 3 3 4 4 6 6 6 6 6 8 8
200 25 3 4 4 4 4 6 6 6 6 6
250 25 3 3 4 4 4 4 6 6 6 6
NOTES1 Steam nozzle sizes given in inches2 Recommended steam nozzle sizes based on 4000 to 5000 fpm steam velocity3 All standard steam nozzle sizes for 150 psig design pressure or greater are the sameas 125 psig operating pressure on the above table To increase or decrease the standardsize request the change with your local Cleaver-Brooks authorized representative4 Shaded area denotes special surge load baffles must be installed to avoid possible wa-ter carry-over5 For incremental operating pressures see Table I3-1 Steam Systems Fundamentals
Table A1-28 Recommended Steam Nozzle Size (for
4000 to 5000 fpm nozzle velocity)
Table A1-29 Recommended Non-Return Valve Size
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Model CBLE 125-800 HP Boilers
42
1 Shortest boiler room length (Dwg A) is obtained by allowing for possible future tube replacement (from front or rearof boiler) through a window or doorway Allowance is only made for minimum door swing at each end of the boilerThis arrangement provides sufficient aisle space at the front of the boiler but a ldquotightrdquo space condition at the rear
If space permits approximately 15 additional feet should be allowed at the rear for additional aisle and workingspace
2 Next shortest boiler room length (Dwg B) is obtained by allowing for possible future tube replacement from thefront of the boiler Allowance is only made for minimum door swing at the rear
If space permits approximately 15 additional feet should be allowed at the rear for additional aisle and workingspace
3 A slightly longer boiler room (Dwg C) is obtained by allowing for possible future tube replacement from the rear ofthe boiler Allowance for door swing at the front provides sufficient aisle and working space at the front
Figure A1-21 Boiler Room Length (Typical Layouts)
BOILER HP 125-200 250-350 400-800
Dimension A 82 93 102
Dimension B 115 141 171
NOTES1 Recommended Minimum Distance Between Boiler and Wall Dimen-
sion ldquoArdquo allows for a ldquoclearrdquo 42 aisle between the water col-umn on the boiler and the wall If space permits this aisle
should be widened 2 Recommended Minimum Distance Between BoilersDimension ldquoBrdquo between boilers allows for a ldquoclearrdquo aisle of42 - 125 -200 hp48 - 250-350 hp60 - 400-800 hpIf space permits this aisle should be widened
Figure A1-22 Boiler Room Width (Typical Layout)
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Model CBLE 125-800 HP Boilers
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Model CBLE 125-800 HP Boilers
23
BOILERHP
VIEW
ALL DIMENSIONS IN INCHES
A B C D E
125 All B 80-14 29-34 70-12 10 3
150 All B 80-14 29-34 83-12 10 3
200 All B 80-14 29-34 114-12 10 3
250Steam B 99 36 72 10 3
Hot Water B 99 36 81 10 3
300
Steam B 99 36 99 10 3
Hot Water B 99 36 108 10 3
350Steam B 99 36 129 10 3
Hot Water B 99 36 138 10 3
400Steam B 119 35-34 78 11 3
Hot Water B 119 35-34 78 11 3
500Steam B 119 35-34 99 11 3
Hot Water B 119 35-34 99 11 3
600Steam B 119 35-34 131 11 3
Hot Water B 119 35-34 131 11 3
700 amp 800Steam B 119 35-34 164 11 3
Hot Water B 119 35-34 164 11 3
NOTE A B and C dimensions may vary by 12 inch
Figure A1-11 Lifting Lug Location Model CB-LE Boilers
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Model CBLE 125-800 HP Boilers
24
PERFORMANCE DATA
The Low Emission Option provides NOx reduction at current published andpredicted fuel-to-steam efficiencies
Specifying BoilerEfficiency
Cleaver-Brooks offers an industry leading fuel-to-steam boiler efficiency guaranteefor Model CB-LE Firetube Boilers The guarantee is based on the fuel-to-steam
efficiencies shown in the efficiency tables and the following conditions Theefficiency percent number is only meaningful if the specific conditions of theefficiency calculations are clearly stated in the specification (see Cleaver-Brookspublication CB-7768 for a detailed description of efficiency calculations)
When specifying the efficiencies in the tables be sure to include the specificguarantee conditions to maximize the effectiveness of your efficiency specification Ifyou have any questions regarding the efficiency specifications please contact yourlocal Cleaver-Brooks authorized representative
EfficiencySpecification
The boiler manufacturer shall guarantee that at the time of startup the boiler willachieve fuel-to-steam efficiency (as shown in Table A1-16 and Table A1-17) at100 firing rate (add efficiency guarantees at 25 50 and 75 of rating if
required) If the boiler(s) fail to achieve the corresponding guaranteed efficiency aspublished the boiler manufacturer will rebate to the ultimate boiler owner tenthousand dollars ($10000) for every full efficiency point (10) that the actualefficiency is below the guaranteed level
The specified boiler efficiency is based on the following conditions
1 Fuel specification used to determine boiler efficiency
bull Natural Gas
Carbon (wt) = 6998Hydrogen (wt) = 2231Sulfur (wt) = 00
Heating value Btulb = 21830bull No 2 Oil
Carbon (wt) = 858Hydrogen (wt) = 127Sulfur (wt) = 02Heating value Btulb = 19420
No 6 Oil
Carbon (wt) = 866Hydrogen (wt) = 109Sulfur (wt) = 209Heating value Btulb = 18830
2 Efficiencies are based on ambient air temperature of 80 degF relative humidity of30 and 15 excess air in the exhaust flue gas
3 Efficiencies are based on manufacturerrsquos published radiation and convectionlosses (For Cleaver-Brooks radiation and convection losses see BoilerEfficiency Facts Guide publication number CB-7767)
4 Any efficiency verification testing will be based on the stack loss method
For efficiencies and stack temperatures at operating pressures not listed followthese procedures
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Model CBLE 125-800 HP Boilers
25
When the operating steam pressure is between 10 psig and 125 psig interpolatethe values from the efficiency tables
When the operating steam pressure is above 125 psig estimated efficiency can becalculated as follows
Example
Boiler 350 hpFuel natural gas
Operating steam pressure 200 psig
Find the fuel-to-steam efficiency at 100 firing rate From Table A1-16 for a 350hp boiler operating at 100 firing rate and an operating steam pressure of 125psig the efficiency is 825
Using Figure A1-12 note that the stack temperature increases 36 degF at the higheroperating pressure To estimate boiler efficiency use this rule of thumb For every40 degF increase in stack temperature efficiency decreases by 1 Since the stacktemperature rise is 36 degF the decrease in the boiler efficiency at 200 psig operatingpressure is calculated as follows 3640 =9 Therefore the boiler efficiency at200 psig operating pressure is 825 -9 = 816
Emissions The emission data included in this section consists of typical emission levels forModel CB boilers equipped with 60 30 25 and 20 ppm LE Options when firingnatural gas and No 2 oil
Notice
The data in Table A1-18 and Table A1-19 represent typical emission levels only
Guaranteed emission levels are available from your local Cleaver-Brooks authorized
representative
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Model CBLE 125-800 HP Boilers
26
BOILER
HP
OPERATING PRESSURE = 10 psig OPERATING PRESSURE = 125 psig
OF LOAD OF LOAD
25 50 75 100 25 50 75 100
125 833 836 834 832 804 809 810 810
150 844 846 845 843 815 820 820 821
200 850 853 851 849 822 827 827 827
250 850 847 840 833 820 820 816 813
300 853 853 846 839 826 827 822 819
350 853 857 852 845 826 832 828 825
400 845 847 846 844 818 822 824 822
500 855 857 855 852 828 832 833 831
600 857 860 858 856 829 835 836 835
700 857 862 860 857 830 836 836 836
800 858 861 859 856 831 836 837 835
Table A1-16 Predicted Fuel-to-Steam Efficiencies - Natural Gas
Figure A1-12 Predicted Stack Temperature Increase for Pressure Greater Than 125 psig
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Model CBLE 125-800 HP Boilers
27
Table A1-18 CB-LE Boilers - Natural Gas Emission Levels
POLLUTANT
ESTIMATED LEVEL
60 ppm 30 ppm 25 ppm 20 ppm 15 ppm 9 ppm
CO ppmA
lbMMBtu
50150B
004011
50150B
004011
50150B
004011
50150B
004011
50
004
50
004
NOx ppmA
lbMMBtu
60
007
30
0035
25
003
20
0024
15
0018
9
0011
SOx ppmA
lbMMBtu
1
0001
1
0001
1
0001
1
0001
1
0001
1
0001
HCVOC5 ppmA
lbMMBtu
10
0004
10
0004
10
0004
10
0004
10
0004
10
0004
PM ppmA
lbMMBtu
-
001
-
001
-
001
-
001
-
001
-
001
A ppm levels are given on a dry volume basis and corrected to 3 oxygen (15 excess air)
B CO emission for 60 30 25 amp 20 ppm system is 50 ppm (004 lbMMBtu) when boiler is operating above 50 of rated capacity
CO emission is 150 ppm (011 lbMMBtu) when boiler is operating below 50 of rated capacity
Table A1-17 Predicted Fuel-to-Steam Efficiencies - No 2 Oil
BOILER
HP
OPERATING PRESSURE = 10 psig OPERATING PRESSURE = 125 psig
OF LOAD OF LOAD
25 50 75 100 25 50 75 100
125 867 869 867 866 837 842 843 843
150 878 880 878 876 848 853 853 854
200 884 887 884 882 856 860 860 860
250 883 881 874 867 853 853 849 847
300 886 887 880 873 859 860 855 852
350 886 890 885 878 859 866 861 858
400 879 881 879 876 851 855 856 855
500 889 890 889 886 861 865 866 864
600 890 894 892 890 862 868 869 868
700 891 895 893 891 863 869 870 869
800 892 895 893 890 864 869 870 868
Table A1-19 CB-LE Boilers - No 2 Oil Emission Levels
POLLUTANTESTIMATED LEVEL
60 ppm LE Option 30 25 20 ppm LE Option 15 ppm 9 ppm
CO ppmA
lbMMBtu
50
0039
50
0039
50
0039
50
0039
NOx ppmA
lbMMBtu140
018690
012085
011370
0093
SOx ppmA
lbMMBtu
278
052
278
052
278
052
278
052
HCVOCs ppmA
lbMMBtu
4
0002
4
0002
4
0002
4
0002
PM ppmA
lbMMBtu
-
0025
-
0025
-
0025
-
0025
A ppm levels are given on a dry volume basis and corrected to 3 oxygen (15 excess air)
BASED ON THE FOLLOWING CONSTITUENT LEVELS
Fuel-bound Nitrogen content = 0015 by weight
Sulfur content = 05 by weight
Ash content = 001 by weight
09-09
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Model CBLE 125-800 HP Boilers
28
ENGINEERING DATA
Sound Level Table A1-20 gives a summary of predicted sound pressure levels for Model CBboilers with 30 ppm LE Options Contact your local Cleaver-Brooks authorizedrepresentative for sound levels or other LE Options
Units - The units for the sound level tables are dbA (decibels measured on the A-weighted scale) in reference to 00002 microbars (20 micro-Newtons per square
meter) Their reference are standardly used in specifying and reporting soundpressure levels on industrial equipment
Test Method - The sound pressure levels in the above tables were obtained fromtests in accordance with the ldquoABMA Test Code for the Measurement of Sound fromPackaged Boilersrdquo In accordance with this code the sound pressure levels reportedwere measured on the boiler centerline 4-12 feet vertically above the bottom of thebase rails and 3 feet horizontally in front of the end of the blower motor or frontsurface of the electrical cabinet
Sound Level Meter - The sound level meter used complies with ANSI S14 Type 1(Precision) The readings are taken with the meter set for slow response andcorrected for background levels
Sound Pressure - The large size boilers the need for auxiliary equipment and thenecessary interconnecting piping make it impractical (and sometimes impossible) toprovide a boiler testing environment which is suitable for taking the data needed todevelop Sound Pressure Power levels
Typical Values - Sound pressure levels (dbA) for the same boiler will vary betweenboiler rooms Sound levels will vary with motor type NOx levels and altitudes Inaddition variations will occur between different people using different sound meterson the same boiler And finally no two boilers can be expected to give precisely thesame sound levels For these reasons we can only predict but not guarantee soundlevels (dbA)
BOILER HP 125 150 200 250 300 350 400 500 600 700 800
HFO dbA 84 84 84 83 84 85 84 85 85 88 90
LFO dbA 82 82 83 81 82 83 82 83 83 84 89
HFG dbA 82 82 83 82 83 84 83 83 85 87 90
LFG dbA 81 81 82 81 82 83 81 81 82 84 88
NOTES1 Sound pressure levels measured on boilers operating in various locations and ex-
pressed in dbA are as shown2 Based on standard altitude fans and fan motors 60 Hz3 Contact your local Cleaver-Brooks authorized representative for sound levels of 60 25or 20 ppm LE Options
ABBREVIATIONS
HF = High Fire LF = Low Fire O = Oil G = Gas
Table A1-20 Model CBLE Predicted Sound Levels 30 ppm NOx Systemss
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Model CBLE 125-800 HP Boilers
29
Gas-Fired Burners Table A1-21 shows gas pressure with standard over- and undersized gas trains
Table A1-22 shows minimum required gas pressure altitude conversion
Figure A1-13 shows standard gas train sizes and locations for Model CB FiretubeBoilers
Figure A1-14 shows typical gas train piping layouts for multiple boiler applications
Figure A1-15 shows standard gas train components
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Model CBLE 125-800 HP Boilers
30
Table A1-21 Standard Undersize and Oversize Gas Trains
CBLE
BOILER HP GAS TRAINSIZE
UPSTREAMVALVE
DOWNSTREAMVALVE
EMISSIONS LEVEL 09 ppm 15 ppm 20 ppm 30 ppm 60 ppm UC
125 HP 15 in BB BB 33 - 49 psi 33 - 49 psi 08 - 50 psi 07 - 50 psi 07 - 50 psi 07 - 50 ps
125 HP 15 in PC PC 34 - 50 psi 34 - 50 psi 09 - 50 psi 08 - 50 psi 08 - 50 psi 08 - 50 ps
125 HP 20 in BB BB 31 - 33 psi 31 - 33 psi 06 - 08 psi 06 - 07 psi 05 - 07 psi 05 - 07 ps
125 HP 20 in PC PC 31 - 34 psi 31 - 34 psi 06 - 09 psi 06 - 08 psi 06 - 08 psi 05 - 08 ps
125 HP 25 in PC PC 30 - 31 psi 30 - 31 psi 04 - 06 psi 04 - 06 psi 04 - 05 psi 04 - 05 ps
125 HP 30 in PC PC 29 - 30 psi 29 - 30 psi 04 - 04 psi 04 - 04 psi 04 - 04 psi 03 - 04 ps
125 HP 40 in PC PC 29 - 29 psi 29 - 29 psi 04 - 04 psi 03 - 04 psi 03 - 04 psi 03 - 03 ps
150 HP 15 in BB BB 37 - 55 psi 39 - 58 psi 10 - 47 psi 09 - 50 psi 09 - 50 psi 09 - 50 ps
150 HP 15 in PC PC 38 - 57 psi 40 - 60 psi 11 - 42 psi 11 - 50 psi 10 - 50 psi 10 - 50 ps
150 HP 20 in BB BB 34 - 37 psi 36 - 39 psi 07 - 10 psi 06 - 09 psi 06 - 09 psi 06 - 09 ps
150 HP 20 in PC PC 34 - 38 psi 36 - 40 psi 07 - 11 psi 07 - 11 psi 07 - 10 psi 06 - 10 ps
150 HP 25 in PC PC 32 - 34 psi 34 - 36 psi 05 - 07 psi 04 - 06 psi 04 - 06 psi 04 - 06 ps
150 HP 30 in PC PC 32 - 32 psi 34 - 34 psi 04 - 05 psi 04 - 04 psi 04 - 04 psi 03 - 04 ps
150 HP 40 in PC PC 31 - 32 psi 33 - 34 psi 04 - 04 psi 03 - 04 psi 03 - 04 psi 03 - 03 ps
200 HP 15 in BB BB 46 - 69 psi 50 - 75 psi 16 - 50 psi 15 - 50 psi 15 - 50 ps
200 HP 15 in PC PC 48 - 72 psi 52 - 78 psi 18 - 50 psi 17 - 50 psi 17 - 50 ps
200 HP 20 in BB BB 41 - 46 psi 45 - 50 psi 10 - 16 psi 10 - 15 psi 10 - 15 ps
200 HP 20 in PC PC 41 - 48 psi 45 - 52 psi 11 - 18 psi 11 - 17 psi 10 - 17 ps
200 HP 25 in PC PC 38 - 41 psi 42 - 45 psi 07 - 10 psi 07 - 10 psi 06 - 10 ps
200 HP 30 in PC PC 36 - 38 psi 40 - 42 psi 06 - 07 psi 05 - 07 psi 05 - 06 ps
200 HP 40 in PC PC 36 - 36 psi 40 - 40 psi 05 - 06 psi 05 - 05 psi 04 - 05 ps
250 HP 15 in BB BB 41 - 62 psi 44 - 67 psi 24 - 50 psi 24 - 27 psi 24 - 26 psi 23 - 26 ps
250 HP 15 in PC PC 45 - 67 psi 48 - 72 psi 28 - 50 psi 27 - 28 psi 27 - 27 psi 27 - 27 ps
250 HP 20 in BB BB 33 - 38 psi 37 - 41 psi 16 - 24 psi 16 - 24 psi 16 - 24 psi 15 - 23 ps
250 HP 20 in PC PC 34 - 40 psi 37 - 43 psi 17 - 28 psi 17 - 27 psi 16 - 27 psi 16 - 27 ps
250 HP 25 in PC PC 29 - 33 psi 32 - 37 psi 11 - 16 psi 11 - 16 psi 11 - 16 psi 10 - 15 ps
250 HP 30 in PC PC 27 - 29 psi 31 - 32 psi 09 - 11 psi 09 - 11 psi 09 - 11 psi 09 - 10 ps
250 HP 40 in PC PC 26 - 27 psi 29 - 31 psi 08 - 09 psi 08 - 09 psi 08 - 09 psi 08 - 09 ps
300 HP 15 in - 20 in BB BB 55 - 83 psi 57 - 85 psi 30 - 50 psi 30 - 36 psi 30 - 35 psi 30 - 35 ps
300 HP 15 in - 20 in PC PC 58 - 87 psi 60 - 90 psi 33 - 50 psi 33 - 37 psi 33 - 36 psi 33 - 36 ps
300 HP 20 in BB BB 46 - 55 psi 47 - 57 psi 21 - 30 psi 21 - 30 psi 20 - 30 psi 20 - 30 ps
300 HP 20 in PC PC 47 - 58 psi 48 - 60 psi 22 - 33 psi 22 - 33 psi 21 - 33 psi 21 - 33 ps
300 HP 30 in PC PC 39 - 46 psi 40 - 47 psi 13 - 21 psi 13 - 21 psi 12 - 20 psi 12 - 20 ps
300 HP 40 in PC PC 37 - 39 psi 39 - 40 psi 11 - 13 psi 11 - 13 psi 10 - 12 psi 10 - 12 ps
350 HP 15 in - 20 in BB BB 64 - 90 psi 62 - 90 psi 42 - 50 psi 42 - 50 psi 41 - 50 psi 41 - 50 ps
350 HP 15 in - 20 in PC PC 68 - 90 psi 66 - 90 psi 46 - 50 psi 46 - 50 psi 45 - 50 psi 45 - 50 ps
350 HP 20 in BB BB 54 - 64 psi 53 - 62 psi 32 - 42 psi 32 - 42 psi 32 - 41 psi 31 - 41 ps
350 HP 20 in PC PC 56 - 68 psi 54 - 66 psi 34 - 46 psi 34 - 46 psi 33 - 45 psi 33 - 45 ps
350 HP 25 in PC PC 43 - 54 psi 42 - 53 psi 21 - 32 psi 21 - 32 psi 20 - 32 psi 20 - 31 ps
350 HP 30 in PC PC 40 - 43 psi 38 - 42 psi 17 - 21 psi 17 - 21 psi 17 - 20 psi 16 - 20 ps
350 HP 40 in PC PC 37 - 40 psi 36 - 38 psi 15 - 17 psi 15 - 17 psi 14 - 17 psi 14 - 16 ps
400 HP 15 in - 20 in BB BB 69 - 90 psi 69 - 90 psi 46 - 50 psi 46 - 50 psi 45 - 50 psi 45 - 50 ps
400 HP 15 in - 20 in PC PC 74 - 90 psi 75 - 90 psi 51 - 87 psi 51 - 77 psi 51 - 77 psi 51 - 77 ps
400 HP 20 in BB BB 55 - 69 psi 56 - 69 psi 32 - 46 psi 32 - 46 psi 32 - 45 psi 32 - 45 ps
400 HP 20 in PC PC 57 - 74 psi 58 - 75 psi 34 - 50 psi 34 - 50 psi 34 - 50 psi 34 - 50 ps
400 HP 25 in PC PC 41 - 55 psi 42 - 56 psi 18 - 32 psi 18 - 32 psi 18 - 32 psi 18 - 32 ps
400 HP 30 in PC PC 37 - 41 psi 38 - 42 psi 13 - 18 psi 13 - 18 psi 13 - 18 psi 13 - 18 ps
400 HP 40 in PC PC 34 - 37 psi 35 - 38 psi 11 - 13 psi 10 - 13 psi 10 - 13 psi 10 - 13 ps
500 HP 20 in - 25 in BB PC 58 - 76 psi 58 - 76 psi 46 - 50 psi 46 - 50 psi 45 - 50 psi 45 - 50 ps
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Model CBLE 125-800 HP Boilers
31
BB = Butter Ball PC = Plug Cock
NOTE In cases where the gas train increases in size after the regulating valve two diameters are listed The first number is the customer connection size
500 HP 20 in - 25 in PC PC 60 - 83 psi 60 - 83 psi 48 - 50 psi 47 - 50 psi 47 - 50 psi 47 - 50 psi
500 HP 25 in PC PC 39 - 58 psi 39 - 58 psi 27 - 46 psi 27 - 46 psi 27 - 45 psi 26 - 45 psi
500 HP 30 in PC PC 33 - 39 psi 33 - 39 psi 20 - 27 psi 20 - 27 psi 20 - 27 psi 20 - 26 psi
500 HP 40 in PC PC 28 - 33 psi 28 - 33 psi 16 - 20 psi 16 - 20 psi 15 - 20 psi 15 - 20 psi
600 HP 20 in - 25 in BB PC 80 - 90 psi 80 - 90 psi 65 - 90 psi 65 - 90 psi 64 - 89 psi 63 - 88 psi
600 HP 20 in - 25 in PC PC 82 - 90 psi 82 - 90 psi 67 - 100 psi 67 - 100 psi 66 - 99 psi 66 - 99 psi
600 HP 25 in PC PC 54 - 80 psi 54 - 80 psi 39 - 50 psi 38 - 50 psi 38 - 50 psi 37 - 50 psi
600 HP 25 in - 30 in PC PC 52 - 54 psi 52 - 54 psi 37 - 39 psi 36 - 38 psi 35 - 38 psi 35 - 37 psi
600 HP 30 in PC PC 43 - 52 psi 43 - 52 psi 28 - 37 psi 27 - 36 psi 27 - 35 psi 26 - 35 psi
600 HP 40 in PC PC 37 - 43 psi 37 - 43 psi 22 - 28 psi 21 - 27 psi 20 - 27 psi 20 - 26 psi
700 HP 20 in - 30 in BB PC 110 - 150 psi 107 - 150 psi 87 - 131 psi 86 - 130 psi 86 - 129 psi 86 - 128 psi
700 HP 20 in - 30 in PC PC 113 - 150 psi 110 - 150 psi 90 - 135 psi 89 - 134 psi 89 - 134 psi 89 - 133 psi
700 HP 25 in - 30 in PC PC 71 - 90 psi 68 - 90 psi 48 - 50 psi 47 - 50 psi 47 - 50 psi 46 - 50 psi
700 HP 30 in PC PC 60 - 71 psi 57 - 68 psi 36 - 48 psi 36 - 47 psi 35 - 47 psi 35 - 46 psi
700 HP 40 in PC PC 51 - 60 psi 48 - 57 psi 28 - 36 psi 27 - 36 psi 27 - 35 psi 26 - 35 psi
800 HP 20 in - 30 in BB PC 108 - 150 psi 107 - 150 psi 106 - 150 psi
800 HP 20 in - 30 in PC PC 112 - 150 psi 111 - 150 psi 110 - 150 psi800 HP 25 in - 30 in PC PC 61 - 90 psi 60 - 100 psi 59 - 100 psi
800 HP 30 in PC PC 48 - 61 psi 47 - 50 psi 46 - 50 psi
800 HP 40 in PC PC 35 - 48 psi 34 - 47 psi 34 - 46 psi
Standard Gas Train size is highlighted
Table A1-21 Standard Undersize and Oversize Gas Trains (Continued)
CBLE
BOILER HP GAS TRAINSIZE
UPSTREAMVALVE
DOWNSTREAMVALVE
EMISSIONS LEVEL 09 ppm 15 ppm 20 ppm 30 ppm 60 ppm UC
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Model CBLE 125-800 HP Boilers
32
ALTITUDE(FT)
CORRECTIONFACTOR
ALTITUDE(FT)
CORRECTIONFACTOR
1000 104 6000 1252000 107 7000 130
3000 111 8000 135
4000 116 9000 140
5000 121 - -
To obtain minimum required gas pressure at altitudesabove 700 feet multiply the pressure by the listed factorsInches WC x 0577 = ozsq-inOzsq-in x 1732 = Inches WCInches WC x 00361= psigOzsq-in x 00625 = psigPsig x 2771 = Inches WCPsig x 160 = Ozsq-in
Table A1-22 Minimum Required Regulated Gas Pressure
Altitude Conversion
BOILERHP
TYPE OF GAS AND HEAT CONTENT
NATURAL GAS1000 (Btucu-ft)
PROPANE GAS2550 (Btucu-ft)
125 5103 2000
150 6124 2402
200 8165 3202
250 10206 4002
300 12247 4802
350 14280 5600
400 16329 6404
500 20415 8006
600 24494 9605
700 28576 11206
800 32659 12807
Table A1-23 Maximum Gas Consumption (CFH)
for Natural Gas and Propane Vapor
BOILER
HP
MODEL CB
CONNECTION SIZE
(IN NPT)
LOCATIONDIMENSION
ldquoArdquo (IN)
125-200 1-12 52
250-350 2 56
400 2 58
500 2-12 60
600 2-12 - 3 71
700-800 3 65
Figure A1-13 Standard Gas Train Connection Size and Location
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Model CBLE 125-800 HP Boilers
33
Oil-Fired Burners Fuel oil consumption information is shown on the boiler rating sheets in theDimensions and Rating Section
Figure A1-16 shows the oil connection sizes and locations for Model CB Boilersfiring No 2 oil
Figure A1-17 through Figure A1-18 show typical oil systems and layouts
Figure A1-19 and Figure A1-20 show the detail of an oil transfer tank (day tank)typically utilized to provide a storage reservoir between the oil system supply pumpand the boiler oil pump
General BoilerInformation
Table A1-24 shows blowdown tank sizing information
Table A1-25 provides heating surface information
Table A1-26 provides steam volume and disengaging area information
Table A1-27 provides recommended steam nozzle sizes
Table A1-28 provides recommended non-return valve sizes
Boiler RoomInformation
Figure A1-21 shows typical boiler room length requirements
Figure A1-22 shows typical boiler room width requirements
Figure A1-23 shows typical breeching arrangements
Stack SupportCapabilities
All standard Cleaver-Brooks Firetube Boilers with an LE option can support up to2000 lbs without additional support
LE Boilers 250 hp through 800 hp can be reinforced to support 3000 lbs
StackBreechingSize Criteria
The design of the stack and breeching must provide the required draft at each boilerflue gas outlet Proper draft is critical to burner performance
Although constant pressure at the flue gas outlet of the Model CB-LE is not requiredit is necessary to size the stackbreeching to limit flue gas pressure variation Theallowable pressure range is ndash025 WC to +025 WC
For additional information please review Section I4 General Engineering Data(Stacks) and Section F Stacks Stack and breeching sizes should always be providedby a reputable stack supplier who will design the stack and breeching system basedon the above criteria Your local Cleaver-Brooks authorized representative is capableof assisting in your evaluation of the stackbreeching design
Boiler RoomCombustion Air
When determining boiler room air requirements the size of the room air flow andvelocity of air must be reviewed as follows
1 Size (area) and location of air supply openings in boiler room
A Two (2) permanent air supply openings in the outer walls of the boiler room
are recommended Locate (1) at each end of the boiler room preferablybelow a height of 7 feet This allows air to sweep the length of the boiler
B Air supply openings can be louvered for weather protection but they shouldnot be covered with fine mesh wire as this type of covering has poor air flowqualities and is subject to clogging by dust or dirt
C A vent fan in the boiler room is not recommended as it could create a slightvacuum under certain conditions and cause variations in the quantity ofcombustion air This can result in unsatisfactory burner performance
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Model CBLE 125-800 HP Boilers
34
D Under no condition should the total area of the air supply openings be lessthan (1) square foot
E Size the openings by using the formulaArea (sq-ft) = CFMFPM
2 Amount of air required (cfm)
A Combustion Air = Rated bhp x 8 cfmbhp
B Ventilation Air = Maximum bhp x 2 cfmbhp
C Total recommended air = 10 cfmbhp - up to 1000 feet elevation Add 3percent more per 1000 feet of added elevation
3 Acceptable air velocity in Boiler Room (fpm)
A From floor to (7) foot height - 250 fpm
B Above (7) foot height - 500 fpm
Example Determine the area of the boiler room air supply openings for (1) 300 hpboiler at 800 feet altitude The air openings are to be 5 feet above floor level
bull Air required 300 x 10 = 3000 cfm (from 2B above)
bull Air velocity Up to 7 feet = 250 fpm (from 3 above)
bull Area Required Area = cfm = 3000250 = 12 sq-ft total
bull AreaOpening 122 = 6 sq-ftopening (2 required)
Notice
Consult local codes which may supersede these requirements
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Model CBLE 125-800 HP Boilers
35
This figure illustrates the basic gas valve arrangement on Cleaver-BrooksModel CB boiler and shows the contractors connection point The valves andcontrols between the contractor connection point and the gas main in thestreet are representative of a typical installation Actual requirements mayvary depending on local codes or local gas company requirements which
should be investigated prior to preparation of specifications and prior to con-struction
A Utilities service valveB Utilities service regulatorC Gas meterD Piping from meter to boiler
The size of the gas line from the meter to the gas pressure regulator at theboiler can be very important if gas pressures are marginal The gas line sizingis dependent on
1 Gas pressure at outlet of gas meter (C)2 Rate of gas flow required CFH3 Length of pipe run (D)4 Pressure required at contractor connection point
The local gas utility will advise the pressure that is available at the outlet oftheir meter
Figure A1-14 Typical Gas Piping Layout
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Model CBLE 125-800 HP Boilers
36
5
6
S
1
3
42
PILOT GAS LINE
S
S
MAIN GAS LINE
M M
ToBurner
GasSupply
11
10
97
12138
14 15
FLOW
FLOW
Figure A1-15 Model CB-LE Gas Train Components
BOILER
HP
MODEL CB
SUPPLYANDRE-
TURNCONN SIZES
(IN)(NPT)
A(IN)
RECOMMENDED OIL LINEA
SIZES(STANDARD PIPE)
(IN - IPS)
STOR-AGE
TANK TOBOILER
OR PUMPCONNECT
PUMPTO
BOILER
RE-TURN
LINE TOTANK
125150 200
34 12-12 1 1 1
250300350
34 34 1 1 1
400500600
34 11-34 1 1 1
700800
1 11-34 1 1 1
NOTE See No 2 Oil Line Sizing Instruction for systems with other conditions A For suction line condition with a maximum of 10 Feet of lift and a
total of 100 feet of suction line
Figure A1-16 No2 Oil Connection Size Location and Recommended Line Sizes
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Model CBLE 125-800 HP Boilers
37
Figure A1-17 No 2 Oil Piping Single Boiler
Installation Remote Oil Pump
Figure A1-18 No 2 Oil Piping Multiple Boiler
Installation Remote Oil Pumps
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Model CBLE 125-800 HP Boilers
38
Figure A1-19 No 2 Oil Piping Multiple Boiler
Installation
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Model CBLE 125-800 HP Boilers
39
Figure A1-20 No 2 Oil Piping Typical Arrangement
Table A1-24 Model CB-LE Blowdown
Tank Sizing
BOILER HP WATER (GAL)
125 97
150 118
200 145
250 146
300 176
350 210
400 177
500 209
600 250
700 800 296
NOTE Quantity of water removed from boiler by lowering normal water line 4
BOILER
HP
HEATING SURFACE (SQ-FT)
FIRESIDE WATERSIDE
125 625 679
150 750 820
200 1000 1092
250 1250 1346
300 1500 1623
350 1750 1932
400 2000 2151
500 2500 2691
600 3000 3262
700 800 3500 3810
Table A1-25 Heating Surface Model CB-LE
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Model CBLE 125-800 HP Boilers
40
BOILER HPSTEAM VOLUME CU-FT
STEAM DISENGAGING AREASQ-IN
HIGH PRESSUREA LOW PRESSUREB HIGH PRESSUREA LOW PRESSUREB
125 254 366 5371 5887
150 307 443 6511 7138
200 377 544 7985 8752
250 492 706 7980 8695
300 595 853 9651 10516
350 709 1017 11507 12538
400 721 979 9793 10593
500 837 1137 11376 12303
600 1015 1378 13787 14911
700-800 1198 1627 16273 17600
NOTE Based on normal water levelA Based on 150 psig design pressureB Based on 15 psig design pressure
Table A1-26 Steam Volume and Disengaging Area
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Model CBLE 125-800 HP Boilers
41
BOILERHP
BOILERCAPACITY(LBSHR)
OPERATING PRESSURES (PSIG)
50 75 100 125 150 175 200 250
100 3450
2-12 2-12 NA NA NA NA NA NA
125 4313 3 2-12 2-12 2-12 NA NA NA NA
150 5175 3 3 2-12 2-12 2-12 2-12 NA NA
200 6900 3 3 3 3 3 2-12 2-12 2-12
250 8625 4 3 3 3 3 3 3 3
300 10350 4 4 4 3 3 3 3 3
350 12025 4 4 4 4 4 3 3 3
400 13800 5 4 4 4 4 4 4 3
500 17210 6 5 5 4 4 4 4 4
600 20700 6 6 5 5 5 4 4 4
700 24150 6 6 6 5 5 5 5 4
800 27600 6 6 6 6 6 5 5 5
NOTE Valve sizes (300 Flanges) given in inchesStandard Non-Return valve selections limited to a maximum 2 to 1 turndown(50 of full load) selections based on typical non-return valve sizing recommen-dations For final valve selection contact your C-B authorized representative Forhigh turndown applications see Boiler Book Section I3 Table I3-3 Indicates pressure drop of less than 75 psig All other selections are less than6 psig pressure drop
Boiler HP
OPERATINGPRESSURE
PSIG125 150 200 250 300 350 400 500 600 700 800
15 8 8 10 10 12 12 12 12 12 12 12
30 6 6 8 8 8 10 10 10 12 12 12
40 6 6 6 8 8 8 10 10 10 12 12
50 6 6 6 6 8 8 8 10 10 10 12
75 4 4 6 6 6 8 8 8 8 10 10
100 4 4 6 6 6 6 6 8 8 8 10
125 4 4 4 6 6 6 6 8 8 8 8
150 3 3 4 4 6 6 6 6 6 8 8
200 25 3 4 4 4 4 6 6 6 6 6
250 25 3 3 4 4 4 4 6 6 6 6
NOTES1 Steam nozzle sizes given in inches2 Recommended steam nozzle sizes based on 4000 to 5000 fpm steam velocity3 All standard steam nozzle sizes for 150 psig design pressure or greater are the sameas 125 psig operating pressure on the above table To increase or decrease the standardsize request the change with your local Cleaver-Brooks authorized representative4 Shaded area denotes special surge load baffles must be installed to avoid possible wa-ter carry-over5 For incremental operating pressures see Table I3-1 Steam Systems Fundamentals
Table A1-28 Recommended Steam Nozzle Size (for
4000 to 5000 fpm nozzle velocity)
Table A1-29 Recommended Non-Return Valve Size
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Model CBLE 125-800 HP Boilers
42
1 Shortest boiler room length (Dwg A) is obtained by allowing for possible future tube replacement (from front or rearof boiler) through a window or doorway Allowance is only made for minimum door swing at each end of the boilerThis arrangement provides sufficient aisle space at the front of the boiler but a ldquotightrdquo space condition at the rear
If space permits approximately 15 additional feet should be allowed at the rear for additional aisle and workingspace
2 Next shortest boiler room length (Dwg B) is obtained by allowing for possible future tube replacement from thefront of the boiler Allowance is only made for minimum door swing at the rear
If space permits approximately 15 additional feet should be allowed at the rear for additional aisle and workingspace
3 A slightly longer boiler room (Dwg C) is obtained by allowing for possible future tube replacement from the rear ofthe boiler Allowance for door swing at the front provides sufficient aisle and working space at the front
Figure A1-21 Boiler Room Length (Typical Layouts)
BOILER HP 125-200 250-350 400-800
Dimension A 82 93 102
Dimension B 115 141 171
NOTES1 Recommended Minimum Distance Between Boiler and Wall Dimen-
sion ldquoArdquo allows for a ldquoclearrdquo 42 aisle between the water col-umn on the boiler and the wall If space permits this aisle
should be widened 2 Recommended Minimum Distance Between BoilersDimension ldquoBrdquo between boilers allows for a ldquoclearrdquo aisle of42 - 125 -200 hp48 - 250-350 hp60 - 400-800 hpIf space permits this aisle should be widened
Figure A1-22 Boiler Room Width (Typical Layout)
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Model CBLE 125-800 HP Boilers
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Model CBLE 125-800 HP Boilers
24
PERFORMANCE DATA
The Low Emission Option provides NOx reduction at current published andpredicted fuel-to-steam efficiencies
Specifying BoilerEfficiency
Cleaver-Brooks offers an industry leading fuel-to-steam boiler efficiency guaranteefor Model CB-LE Firetube Boilers The guarantee is based on the fuel-to-steam
efficiencies shown in the efficiency tables and the following conditions Theefficiency percent number is only meaningful if the specific conditions of theefficiency calculations are clearly stated in the specification (see Cleaver-Brookspublication CB-7768 for a detailed description of efficiency calculations)
When specifying the efficiencies in the tables be sure to include the specificguarantee conditions to maximize the effectiveness of your efficiency specification Ifyou have any questions regarding the efficiency specifications please contact yourlocal Cleaver-Brooks authorized representative
EfficiencySpecification
The boiler manufacturer shall guarantee that at the time of startup the boiler willachieve fuel-to-steam efficiency (as shown in Table A1-16 and Table A1-17) at100 firing rate (add efficiency guarantees at 25 50 and 75 of rating if
required) If the boiler(s) fail to achieve the corresponding guaranteed efficiency aspublished the boiler manufacturer will rebate to the ultimate boiler owner tenthousand dollars ($10000) for every full efficiency point (10) that the actualefficiency is below the guaranteed level
The specified boiler efficiency is based on the following conditions
1 Fuel specification used to determine boiler efficiency
bull Natural Gas
Carbon (wt) = 6998Hydrogen (wt) = 2231Sulfur (wt) = 00
Heating value Btulb = 21830bull No 2 Oil
Carbon (wt) = 858Hydrogen (wt) = 127Sulfur (wt) = 02Heating value Btulb = 19420
No 6 Oil
Carbon (wt) = 866Hydrogen (wt) = 109Sulfur (wt) = 209Heating value Btulb = 18830
2 Efficiencies are based on ambient air temperature of 80 degF relative humidity of30 and 15 excess air in the exhaust flue gas
3 Efficiencies are based on manufacturerrsquos published radiation and convectionlosses (For Cleaver-Brooks radiation and convection losses see BoilerEfficiency Facts Guide publication number CB-7767)
4 Any efficiency verification testing will be based on the stack loss method
For efficiencies and stack temperatures at operating pressures not listed followthese procedures
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Model CBLE 125-800 HP Boilers
25
When the operating steam pressure is between 10 psig and 125 psig interpolatethe values from the efficiency tables
When the operating steam pressure is above 125 psig estimated efficiency can becalculated as follows
Example
Boiler 350 hpFuel natural gas
Operating steam pressure 200 psig
Find the fuel-to-steam efficiency at 100 firing rate From Table A1-16 for a 350hp boiler operating at 100 firing rate and an operating steam pressure of 125psig the efficiency is 825
Using Figure A1-12 note that the stack temperature increases 36 degF at the higheroperating pressure To estimate boiler efficiency use this rule of thumb For every40 degF increase in stack temperature efficiency decreases by 1 Since the stacktemperature rise is 36 degF the decrease in the boiler efficiency at 200 psig operatingpressure is calculated as follows 3640 =9 Therefore the boiler efficiency at200 psig operating pressure is 825 -9 = 816
Emissions The emission data included in this section consists of typical emission levels forModel CB boilers equipped with 60 30 25 and 20 ppm LE Options when firingnatural gas and No 2 oil
Notice
The data in Table A1-18 and Table A1-19 represent typical emission levels only
Guaranteed emission levels are available from your local Cleaver-Brooks authorized
representative
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Model CBLE 125-800 HP Boilers
26
BOILER
HP
OPERATING PRESSURE = 10 psig OPERATING PRESSURE = 125 psig
OF LOAD OF LOAD
25 50 75 100 25 50 75 100
125 833 836 834 832 804 809 810 810
150 844 846 845 843 815 820 820 821
200 850 853 851 849 822 827 827 827
250 850 847 840 833 820 820 816 813
300 853 853 846 839 826 827 822 819
350 853 857 852 845 826 832 828 825
400 845 847 846 844 818 822 824 822
500 855 857 855 852 828 832 833 831
600 857 860 858 856 829 835 836 835
700 857 862 860 857 830 836 836 836
800 858 861 859 856 831 836 837 835
Table A1-16 Predicted Fuel-to-Steam Efficiencies - Natural Gas
Figure A1-12 Predicted Stack Temperature Increase for Pressure Greater Than 125 psig
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Model CBLE 125-800 HP Boilers
27
Table A1-18 CB-LE Boilers - Natural Gas Emission Levels
POLLUTANT
ESTIMATED LEVEL
60 ppm 30 ppm 25 ppm 20 ppm 15 ppm 9 ppm
CO ppmA
lbMMBtu
50150B
004011
50150B
004011
50150B
004011
50150B
004011
50
004
50
004
NOx ppmA
lbMMBtu
60
007
30
0035
25
003
20
0024
15
0018
9
0011
SOx ppmA
lbMMBtu
1
0001
1
0001
1
0001
1
0001
1
0001
1
0001
HCVOC5 ppmA
lbMMBtu
10
0004
10
0004
10
0004
10
0004
10
0004
10
0004
PM ppmA
lbMMBtu
-
001
-
001
-
001
-
001
-
001
-
001
A ppm levels are given on a dry volume basis and corrected to 3 oxygen (15 excess air)
B CO emission for 60 30 25 amp 20 ppm system is 50 ppm (004 lbMMBtu) when boiler is operating above 50 of rated capacity
CO emission is 150 ppm (011 lbMMBtu) when boiler is operating below 50 of rated capacity
Table A1-17 Predicted Fuel-to-Steam Efficiencies - No 2 Oil
BOILER
HP
OPERATING PRESSURE = 10 psig OPERATING PRESSURE = 125 psig
OF LOAD OF LOAD
25 50 75 100 25 50 75 100
125 867 869 867 866 837 842 843 843
150 878 880 878 876 848 853 853 854
200 884 887 884 882 856 860 860 860
250 883 881 874 867 853 853 849 847
300 886 887 880 873 859 860 855 852
350 886 890 885 878 859 866 861 858
400 879 881 879 876 851 855 856 855
500 889 890 889 886 861 865 866 864
600 890 894 892 890 862 868 869 868
700 891 895 893 891 863 869 870 869
800 892 895 893 890 864 869 870 868
Table A1-19 CB-LE Boilers - No 2 Oil Emission Levels
POLLUTANTESTIMATED LEVEL
60 ppm LE Option 30 25 20 ppm LE Option 15 ppm 9 ppm
CO ppmA
lbMMBtu
50
0039
50
0039
50
0039
50
0039
NOx ppmA
lbMMBtu140
018690
012085
011370
0093
SOx ppmA
lbMMBtu
278
052
278
052
278
052
278
052
HCVOCs ppmA
lbMMBtu
4
0002
4
0002
4
0002
4
0002
PM ppmA
lbMMBtu
-
0025
-
0025
-
0025
-
0025
A ppm levels are given on a dry volume basis and corrected to 3 oxygen (15 excess air)
BASED ON THE FOLLOWING CONSTITUENT LEVELS
Fuel-bound Nitrogen content = 0015 by weight
Sulfur content = 05 by weight
Ash content = 001 by weight
09-09
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28
ENGINEERING DATA
Sound Level Table A1-20 gives a summary of predicted sound pressure levels for Model CBboilers with 30 ppm LE Options Contact your local Cleaver-Brooks authorizedrepresentative for sound levels or other LE Options
Units - The units for the sound level tables are dbA (decibels measured on the A-weighted scale) in reference to 00002 microbars (20 micro-Newtons per square
meter) Their reference are standardly used in specifying and reporting soundpressure levels on industrial equipment
Test Method - The sound pressure levels in the above tables were obtained fromtests in accordance with the ldquoABMA Test Code for the Measurement of Sound fromPackaged Boilersrdquo In accordance with this code the sound pressure levels reportedwere measured on the boiler centerline 4-12 feet vertically above the bottom of thebase rails and 3 feet horizontally in front of the end of the blower motor or frontsurface of the electrical cabinet
Sound Level Meter - The sound level meter used complies with ANSI S14 Type 1(Precision) The readings are taken with the meter set for slow response andcorrected for background levels
Sound Pressure - The large size boilers the need for auxiliary equipment and thenecessary interconnecting piping make it impractical (and sometimes impossible) toprovide a boiler testing environment which is suitable for taking the data needed todevelop Sound Pressure Power levels
Typical Values - Sound pressure levels (dbA) for the same boiler will vary betweenboiler rooms Sound levels will vary with motor type NOx levels and altitudes Inaddition variations will occur between different people using different sound meterson the same boiler And finally no two boilers can be expected to give precisely thesame sound levels For these reasons we can only predict but not guarantee soundlevels (dbA)
BOILER HP 125 150 200 250 300 350 400 500 600 700 800
HFO dbA 84 84 84 83 84 85 84 85 85 88 90
LFO dbA 82 82 83 81 82 83 82 83 83 84 89
HFG dbA 82 82 83 82 83 84 83 83 85 87 90
LFG dbA 81 81 82 81 82 83 81 81 82 84 88
NOTES1 Sound pressure levels measured on boilers operating in various locations and ex-
pressed in dbA are as shown2 Based on standard altitude fans and fan motors 60 Hz3 Contact your local Cleaver-Brooks authorized representative for sound levels of 60 25or 20 ppm LE Options
ABBREVIATIONS
HF = High Fire LF = Low Fire O = Oil G = Gas
Table A1-20 Model CBLE Predicted Sound Levels 30 ppm NOx Systemss
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Model CBLE 125-800 HP Boilers
29
Gas-Fired Burners Table A1-21 shows gas pressure with standard over- and undersized gas trains
Table A1-22 shows minimum required gas pressure altitude conversion
Figure A1-13 shows standard gas train sizes and locations for Model CB FiretubeBoilers
Figure A1-14 shows typical gas train piping layouts for multiple boiler applications
Figure A1-15 shows standard gas train components
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Model CBLE 125-800 HP Boilers
30
Table A1-21 Standard Undersize and Oversize Gas Trains
CBLE
BOILER HP GAS TRAINSIZE
UPSTREAMVALVE
DOWNSTREAMVALVE
EMISSIONS LEVEL 09 ppm 15 ppm 20 ppm 30 ppm 60 ppm UC
125 HP 15 in BB BB 33 - 49 psi 33 - 49 psi 08 - 50 psi 07 - 50 psi 07 - 50 psi 07 - 50 ps
125 HP 15 in PC PC 34 - 50 psi 34 - 50 psi 09 - 50 psi 08 - 50 psi 08 - 50 psi 08 - 50 ps
125 HP 20 in BB BB 31 - 33 psi 31 - 33 psi 06 - 08 psi 06 - 07 psi 05 - 07 psi 05 - 07 ps
125 HP 20 in PC PC 31 - 34 psi 31 - 34 psi 06 - 09 psi 06 - 08 psi 06 - 08 psi 05 - 08 ps
125 HP 25 in PC PC 30 - 31 psi 30 - 31 psi 04 - 06 psi 04 - 06 psi 04 - 05 psi 04 - 05 ps
125 HP 30 in PC PC 29 - 30 psi 29 - 30 psi 04 - 04 psi 04 - 04 psi 04 - 04 psi 03 - 04 ps
125 HP 40 in PC PC 29 - 29 psi 29 - 29 psi 04 - 04 psi 03 - 04 psi 03 - 04 psi 03 - 03 ps
150 HP 15 in BB BB 37 - 55 psi 39 - 58 psi 10 - 47 psi 09 - 50 psi 09 - 50 psi 09 - 50 ps
150 HP 15 in PC PC 38 - 57 psi 40 - 60 psi 11 - 42 psi 11 - 50 psi 10 - 50 psi 10 - 50 ps
150 HP 20 in BB BB 34 - 37 psi 36 - 39 psi 07 - 10 psi 06 - 09 psi 06 - 09 psi 06 - 09 ps
150 HP 20 in PC PC 34 - 38 psi 36 - 40 psi 07 - 11 psi 07 - 11 psi 07 - 10 psi 06 - 10 ps
150 HP 25 in PC PC 32 - 34 psi 34 - 36 psi 05 - 07 psi 04 - 06 psi 04 - 06 psi 04 - 06 ps
150 HP 30 in PC PC 32 - 32 psi 34 - 34 psi 04 - 05 psi 04 - 04 psi 04 - 04 psi 03 - 04 ps
150 HP 40 in PC PC 31 - 32 psi 33 - 34 psi 04 - 04 psi 03 - 04 psi 03 - 04 psi 03 - 03 ps
200 HP 15 in BB BB 46 - 69 psi 50 - 75 psi 16 - 50 psi 15 - 50 psi 15 - 50 ps
200 HP 15 in PC PC 48 - 72 psi 52 - 78 psi 18 - 50 psi 17 - 50 psi 17 - 50 ps
200 HP 20 in BB BB 41 - 46 psi 45 - 50 psi 10 - 16 psi 10 - 15 psi 10 - 15 ps
200 HP 20 in PC PC 41 - 48 psi 45 - 52 psi 11 - 18 psi 11 - 17 psi 10 - 17 ps
200 HP 25 in PC PC 38 - 41 psi 42 - 45 psi 07 - 10 psi 07 - 10 psi 06 - 10 ps
200 HP 30 in PC PC 36 - 38 psi 40 - 42 psi 06 - 07 psi 05 - 07 psi 05 - 06 ps
200 HP 40 in PC PC 36 - 36 psi 40 - 40 psi 05 - 06 psi 05 - 05 psi 04 - 05 ps
250 HP 15 in BB BB 41 - 62 psi 44 - 67 psi 24 - 50 psi 24 - 27 psi 24 - 26 psi 23 - 26 ps
250 HP 15 in PC PC 45 - 67 psi 48 - 72 psi 28 - 50 psi 27 - 28 psi 27 - 27 psi 27 - 27 ps
250 HP 20 in BB BB 33 - 38 psi 37 - 41 psi 16 - 24 psi 16 - 24 psi 16 - 24 psi 15 - 23 ps
250 HP 20 in PC PC 34 - 40 psi 37 - 43 psi 17 - 28 psi 17 - 27 psi 16 - 27 psi 16 - 27 ps
250 HP 25 in PC PC 29 - 33 psi 32 - 37 psi 11 - 16 psi 11 - 16 psi 11 - 16 psi 10 - 15 ps
250 HP 30 in PC PC 27 - 29 psi 31 - 32 psi 09 - 11 psi 09 - 11 psi 09 - 11 psi 09 - 10 ps
250 HP 40 in PC PC 26 - 27 psi 29 - 31 psi 08 - 09 psi 08 - 09 psi 08 - 09 psi 08 - 09 ps
300 HP 15 in - 20 in BB BB 55 - 83 psi 57 - 85 psi 30 - 50 psi 30 - 36 psi 30 - 35 psi 30 - 35 ps
300 HP 15 in - 20 in PC PC 58 - 87 psi 60 - 90 psi 33 - 50 psi 33 - 37 psi 33 - 36 psi 33 - 36 ps
300 HP 20 in BB BB 46 - 55 psi 47 - 57 psi 21 - 30 psi 21 - 30 psi 20 - 30 psi 20 - 30 ps
300 HP 20 in PC PC 47 - 58 psi 48 - 60 psi 22 - 33 psi 22 - 33 psi 21 - 33 psi 21 - 33 ps
300 HP 30 in PC PC 39 - 46 psi 40 - 47 psi 13 - 21 psi 13 - 21 psi 12 - 20 psi 12 - 20 ps
300 HP 40 in PC PC 37 - 39 psi 39 - 40 psi 11 - 13 psi 11 - 13 psi 10 - 12 psi 10 - 12 ps
350 HP 15 in - 20 in BB BB 64 - 90 psi 62 - 90 psi 42 - 50 psi 42 - 50 psi 41 - 50 psi 41 - 50 ps
350 HP 15 in - 20 in PC PC 68 - 90 psi 66 - 90 psi 46 - 50 psi 46 - 50 psi 45 - 50 psi 45 - 50 ps
350 HP 20 in BB BB 54 - 64 psi 53 - 62 psi 32 - 42 psi 32 - 42 psi 32 - 41 psi 31 - 41 ps
350 HP 20 in PC PC 56 - 68 psi 54 - 66 psi 34 - 46 psi 34 - 46 psi 33 - 45 psi 33 - 45 ps
350 HP 25 in PC PC 43 - 54 psi 42 - 53 psi 21 - 32 psi 21 - 32 psi 20 - 32 psi 20 - 31 ps
350 HP 30 in PC PC 40 - 43 psi 38 - 42 psi 17 - 21 psi 17 - 21 psi 17 - 20 psi 16 - 20 ps
350 HP 40 in PC PC 37 - 40 psi 36 - 38 psi 15 - 17 psi 15 - 17 psi 14 - 17 psi 14 - 16 ps
400 HP 15 in - 20 in BB BB 69 - 90 psi 69 - 90 psi 46 - 50 psi 46 - 50 psi 45 - 50 psi 45 - 50 ps
400 HP 15 in - 20 in PC PC 74 - 90 psi 75 - 90 psi 51 - 87 psi 51 - 77 psi 51 - 77 psi 51 - 77 ps
400 HP 20 in BB BB 55 - 69 psi 56 - 69 psi 32 - 46 psi 32 - 46 psi 32 - 45 psi 32 - 45 ps
400 HP 20 in PC PC 57 - 74 psi 58 - 75 psi 34 - 50 psi 34 - 50 psi 34 - 50 psi 34 - 50 ps
400 HP 25 in PC PC 41 - 55 psi 42 - 56 psi 18 - 32 psi 18 - 32 psi 18 - 32 psi 18 - 32 ps
400 HP 30 in PC PC 37 - 41 psi 38 - 42 psi 13 - 18 psi 13 - 18 psi 13 - 18 psi 13 - 18 ps
400 HP 40 in PC PC 34 - 37 psi 35 - 38 psi 11 - 13 psi 10 - 13 psi 10 - 13 psi 10 - 13 ps
500 HP 20 in - 25 in BB PC 58 - 76 psi 58 - 76 psi 46 - 50 psi 46 - 50 psi 45 - 50 psi 45 - 50 ps
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Model CBLE 125-800 HP Boilers
31
BB = Butter Ball PC = Plug Cock
NOTE In cases where the gas train increases in size after the regulating valve two diameters are listed The first number is the customer connection size
500 HP 20 in - 25 in PC PC 60 - 83 psi 60 - 83 psi 48 - 50 psi 47 - 50 psi 47 - 50 psi 47 - 50 psi
500 HP 25 in PC PC 39 - 58 psi 39 - 58 psi 27 - 46 psi 27 - 46 psi 27 - 45 psi 26 - 45 psi
500 HP 30 in PC PC 33 - 39 psi 33 - 39 psi 20 - 27 psi 20 - 27 psi 20 - 27 psi 20 - 26 psi
500 HP 40 in PC PC 28 - 33 psi 28 - 33 psi 16 - 20 psi 16 - 20 psi 15 - 20 psi 15 - 20 psi
600 HP 20 in - 25 in BB PC 80 - 90 psi 80 - 90 psi 65 - 90 psi 65 - 90 psi 64 - 89 psi 63 - 88 psi
600 HP 20 in - 25 in PC PC 82 - 90 psi 82 - 90 psi 67 - 100 psi 67 - 100 psi 66 - 99 psi 66 - 99 psi
600 HP 25 in PC PC 54 - 80 psi 54 - 80 psi 39 - 50 psi 38 - 50 psi 38 - 50 psi 37 - 50 psi
600 HP 25 in - 30 in PC PC 52 - 54 psi 52 - 54 psi 37 - 39 psi 36 - 38 psi 35 - 38 psi 35 - 37 psi
600 HP 30 in PC PC 43 - 52 psi 43 - 52 psi 28 - 37 psi 27 - 36 psi 27 - 35 psi 26 - 35 psi
600 HP 40 in PC PC 37 - 43 psi 37 - 43 psi 22 - 28 psi 21 - 27 psi 20 - 27 psi 20 - 26 psi
700 HP 20 in - 30 in BB PC 110 - 150 psi 107 - 150 psi 87 - 131 psi 86 - 130 psi 86 - 129 psi 86 - 128 psi
700 HP 20 in - 30 in PC PC 113 - 150 psi 110 - 150 psi 90 - 135 psi 89 - 134 psi 89 - 134 psi 89 - 133 psi
700 HP 25 in - 30 in PC PC 71 - 90 psi 68 - 90 psi 48 - 50 psi 47 - 50 psi 47 - 50 psi 46 - 50 psi
700 HP 30 in PC PC 60 - 71 psi 57 - 68 psi 36 - 48 psi 36 - 47 psi 35 - 47 psi 35 - 46 psi
700 HP 40 in PC PC 51 - 60 psi 48 - 57 psi 28 - 36 psi 27 - 36 psi 27 - 35 psi 26 - 35 psi
800 HP 20 in - 30 in BB PC 108 - 150 psi 107 - 150 psi 106 - 150 psi
800 HP 20 in - 30 in PC PC 112 - 150 psi 111 - 150 psi 110 - 150 psi800 HP 25 in - 30 in PC PC 61 - 90 psi 60 - 100 psi 59 - 100 psi
800 HP 30 in PC PC 48 - 61 psi 47 - 50 psi 46 - 50 psi
800 HP 40 in PC PC 35 - 48 psi 34 - 47 psi 34 - 46 psi
Standard Gas Train size is highlighted
Table A1-21 Standard Undersize and Oversize Gas Trains (Continued)
CBLE
BOILER HP GAS TRAINSIZE
UPSTREAMVALVE
DOWNSTREAMVALVE
EMISSIONS LEVEL 09 ppm 15 ppm 20 ppm 30 ppm 60 ppm UC
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Model CBLE 125-800 HP Boilers
32
ALTITUDE(FT)
CORRECTIONFACTOR
ALTITUDE(FT)
CORRECTIONFACTOR
1000 104 6000 1252000 107 7000 130
3000 111 8000 135
4000 116 9000 140
5000 121 - -
To obtain minimum required gas pressure at altitudesabove 700 feet multiply the pressure by the listed factorsInches WC x 0577 = ozsq-inOzsq-in x 1732 = Inches WCInches WC x 00361= psigOzsq-in x 00625 = psigPsig x 2771 = Inches WCPsig x 160 = Ozsq-in
Table A1-22 Minimum Required Regulated Gas Pressure
Altitude Conversion
BOILERHP
TYPE OF GAS AND HEAT CONTENT
NATURAL GAS1000 (Btucu-ft)
PROPANE GAS2550 (Btucu-ft)
125 5103 2000
150 6124 2402
200 8165 3202
250 10206 4002
300 12247 4802
350 14280 5600
400 16329 6404
500 20415 8006
600 24494 9605
700 28576 11206
800 32659 12807
Table A1-23 Maximum Gas Consumption (CFH)
for Natural Gas and Propane Vapor
BOILER
HP
MODEL CB
CONNECTION SIZE
(IN NPT)
LOCATIONDIMENSION
ldquoArdquo (IN)
125-200 1-12 52
250-350 2 56
400 2 58
500 2-12 60
600 2-12 - 3 71
700-800 3 65
Figure A1-13 Standard Gas Train Connection Size and Location
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Model CBLE 125-800 HP Boilers
33
Oil-Fired Burners Fuel oil consumption information is shown on the boiler rating sheets in theDimensions and Rating Section
Figure A1-16 shows the oil connection sizes and locations for Model CB Boilersfiring No 2 oil
Figure A1-17 through Figure A1-18 show typical oil systems and layouts
Figure A1-19 and Figure A1-20 show the detail of an oil transfer tank (day tank)typically utilized to provide a storage reservoir between the oil system supply pumpand the boiler oil pump
General BoilerInformation
Table A1-24 shows blowdown tank sizing information
Table A1-25 provides heating surface information
Table A1-26 provides steam volume and disengaging area information
Table A1-27 provides recommended steam nozzle sizes
Table A1-28 provides recommended non-return valve sizes
Boiler RoomInformation
Figure A1-21 shows typical boiler room length requirements
Figure A1-22 shows typical boiler room width requirements
Figure A1-23 shows typical breeching arrangements
Stack SupportCapabilities
All standard Cleaver-Brooks Firetube Boilers with an LE option can support up to2000 lbs without additional support
LE Boilers 250 hp through 800 hp can be reinforced to support 3000 lbs
StackBreechingSize Criteria
The design of the stack and breeching must provide the required draft at each boilerflue gas outlet Proper draft is critical to burner performance
Although constant pressure at the flue gas outlet of the Model CB-LE is not requiredit is necessary to size the stackbreeching to limit flue gas pressure variation Theallowable pressure range is ndash025 WC to +025 WC
For additional information please review Section I4 General Engineering Data(Stacks) and Section F Stacks Stack and breeching sizes should always be providedby a reputable stack supplier who will design the stack and breeching system basedon the above criteria Your local Cleaver-Brooks authorized representative is capableof assisting in your evaluation of the stackbreeching design
Boiler RoomCombustion Air
When determining boiler room air requirements the size of the room air flow andvelocity of air must be reviewed as follows
1 Size (area) and location of air supply openings in boiler room
A Two (2) permanent air supply openings in the outer walls of the boiler room
are recommended Locate (1) at each end of the boiler room preferablybelow a height of 7 feet This allows air to sweep the length of the boiler
B Air supply openings can be louvered for weather protection but they shouldnot be covered with fine mesh wire as this type of covering has poor air flowqualities and is subject to clogging by dust or dirt
C A vent fan in the boiler room is not recommended as it could create a slightvacuum under certain conditions and cause variations in the quantity ofcombustion air This can result in unsatisfactory burner performance
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Model CBLE 125-800 HP Boilers
34
D Under no condition should the total area of the air supply openings be lessthan (1) square foot
E Size the openings by using the formulaArea (sq-ft) = CFMFPM
2 Amount of air required (cfm)
A Combustion Air = Rated bhp x 8 cfmbhp
B Ventilation Air = Maximum bhp x 2 cfmbhp
C Total recommended air = 10 cfmbhp - up to 1000 feet elevation Add 3percent more per 1000 feet of added elevation
3 Acceptable air velocity in Boiler Room (fpm)
A From floor to (7) foot height - 250 fpm
B Above (7) foot height - 500 fpm
Example Determine the area of the boiler room air supply openings for (1) 300 hpboiler at 800 feet altitude The air openings are to be 5 feet above floor level
bull Air required 300 x 10 = 3000 cfm (from 2B above)
bull Air velocity Up to 7 feet = 250 fpm (from 3 above)
bull Area Required Area = cfm = 3000250 = 12 sq-ft total
bull AreaOpening 122 = 6 sq-ftopening (2 required)
Notice
Consult local codes which may supersede these requirements
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Model CBLE 125-800 HP Boilers
35
This figure illustrates the basic gas valve arrangement on Cleaver-BrooksModel CB boiler and shows the contractors connection point The valves andcontrols between the contractor connection point and the gas main in thestreet are representative of a typical installation Actual requirements mayvary depending on local codes or local gas company requirements which
should be investigated prior to preparation of specifications and prior to con-struction
A Utilities service valveB Utilities service regulatorC Gas meterD Piping from meter to boiler
The size of the gas line from the meter to the gas pressure regulator at theboiler can be very important if gas pressures are marginal The gas line sizingis dependent on
1 Gas pressure at outlet of gas meter (C)2 Rate of gas flow required CFH3 Length of pipe run (D)4 Pressure required at contractor connection point
The local gas utility will advise the pressure that is available at the outlet oftheir meter
Figure A1-14 Typical Gas Piping Layout
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Model CBLE 125-800 HP Boilers
36
5
6
S
1
3
42
PILOT GAS LINE
S
S
MAIN GAS LINE
M M
ToBurner
GasSupply
11
10
97
12138
14 15
FLOW
FLOW
Figure A1-15 Model CB-LE Gas Train Components
BOILER
HP
MODEL CB
SUPPLYANDRE-
TURNCONN SIZES
(IN)(NPT)
A(IN)
RECOMMENDED OIL LINEA
SIZES(STANDARD PIPE)
(IN - IPS)
STOR-AGE
TANK TOBOILER
OR PUMPCONNECT
PUMPTO
BOILER
RE-TURN
LINE TOTANK
125150 200
34 12-12 1 1 1
250300350
34 34 1 1 1
400500600
34 11-34 1 1 1
700800
1 11-34 1 1 1
NOTE See No 2 Oil Line Sizing Instruction for systems with other conditions A For suction line condition with a maximum of 10 Feet of lift and a
total of 100 feet of suction line
Figure A1-16 No2 Oil Connection Size Location and Recommended Line Sizes
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Model CBLE 125-800 HP Boilers
37
Figure A1-17 No 2 Oil Piping Single Boiler
Installation Remote Oil Pump
Figure A1-18 No 2 Oil Piping Multiple Boiler
Installation Remote Oil Pumps
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Model CBLE 125-800 HP Boilers
38
Figure A1-19 No 2 Oil Piping Multiple Boiler
Installation
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Model CBLE 125-800 HP Boilers
39
Figure A1-20 No 2 Oil Piping Typical Arrangement
Table A1-24 Model CB-LE Blowdown
Tank Sizing
BOILER HP WATER (GAL)
125 97
150 118
200 145
250 146
300 176
350 210
400 177
500 209
600 250
700 800 296
NOTE Quantity of water removed from boiler by lowering normal water line 4
BOILER
HP
HEATING SURFACE (SQ-FT)
FIRESIDE WATERSIDE
125 625 679
150 750 820
200 1000 1092
250 1250 1346
300 1500 1623
350 1750 1932
400 2000 2151
500 2500 2691
600 3000 3262
700 800 3500 3810
Table A1-25 Heating Surface Model CB-LE
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Model CBLE 125-800 HP Boilers
40
BOILER HPSTEAM VOLUME CU-FT
STEAM DISENGAGING AREASQ-IN
HIGH PRESSUREA LOW PRESSUREB HIGH PRESSUREA LOW PRESSUREB
125 254 366 5371 5887
150 307 443 6511 7138
200 377 544 7985 8752
250 492 706 7980 8695
300 595 853 9651 10516
350 709 1017 11507 12538
400 721 979 9793 10593
500 837 1137 11376 12303
600 1015 1378 13787 14911
700-800 1198 1627 16273 17600
NOTE Based on normal water levelA Based on 150 psig design pressureB Based on 15 psig design pressure
Table A1-26 Steam Volume and Disengaging Area
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Model CBLE 125-800 HP Boilers
41
BOILERHP
BOILERCAPACITY(LBSHR)
OPERATING PRESSURES (PSIG)
50 75 100 125 150 175 200 250
100 3450
2-12 2-12 NA NA NA NA NA NA
125 4313 3 2-12 2-12 2-12 NA NA NA NA
150 5175 3 3 2-12 2-12 2-12 2-12 NA NA
200 6900 3 3 3 3 3 2-12 2-12 2-12
250 8625 4 3 3 3 3 3 3 3
300 10350 4 4 4 3 3 3 3 3
350 12025 4 4 4 4 4 3 3 3
400 13800 5 4 4 4 4 4 4 3
500 17210 6 5 5 4 4 4 4 4
600 20700 6 6 5 5 5 4 4 4
700 24150 6 6 6 5 5 5 5 4
800 27600 6 6 6 6 6 5 5 5
NOTE Valve sizes (300 Flanges) given in inchesStandard Non-Return valve selections limited to a maximum 2 to 1 turndown(50 of full load) selections based on typical non-return valve sizing recommen-dations For final valve selection contact your C-B authorized representative Forhigh turndown applications see Boiler Book Section I3 Table I3-3 Indicates pressure drop of less than 75 psig All other selections are less than6 psig pressure drop
Boiler HP
OPERATINGPRESSURE
PSIG125 150 200 250 300 350 400 500 600 700 800
15 8 8 10 10 12 12 12 12 12 12 12
30 6 6 8 8 8 10 10 10 12 12 12
40 6 6 6 8 8 8 10 10 10 12 12
50 6 6 6 6 8 8 8 10 10 10 12
75 4 4 6 6 6 8 8 8 8 10 10
100 4 4 6 6 6 6 6 8 8 8 10
125 4 4 4 6 6 6 6 8 8 8 8
150 3 3 4 4 6 6 6 6 6 8 8
200 25 3 4 4 4 4 6 6 6 6 6
250 25 3 3 4 4 4 4 6 6 6 6
NOTES1 Steam nozzle sizes given in inches2 Recommended steam nozzle sizes based on 4000 to 5000 fpm steam velocity3 All standard steam nozzle sizes for 150 psig design pressure or greater are the sameas 125 psig operating pressure on the above table To increase or decrease the standardsize request the change with your local Cleaver-Brooks authorized representative4 Shaded area denotes special surge load baffles must be installed to avoid possible wa-ter carry-over5 For incremental operating pressures see Table I3-1 Steam Systems Fundamentals
Table A1-28 Recommended Steam Nozzle Size (for
4000 to 5000 fpm nozzle velocity)
Table A1-29 Recommended Non-Return Valve Size
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Model CBLE 125-800 HP Boilers
42
1 Shortest boiler room length (Dwg A) is obtained by allowing for possible future tube replacement (from front or rearof boiler) through a window or doorway Allowance is only made for minimum door swing at each end of the boilerThis arrangement provides sufficient aisle space at the front of the boiler but a ldquotightrdquo space condition at the rear
If space permits approximately 15 additional feet should be allowed at the rear for additional aisle and workingspace
2 Next shortest boiler room length (Dwg B) is obtained by allowing for possible future tube replacement from thefront of the boiler Allowance is only made for minimum door swing at the rear
If space permits approximately 15 additional feet should be allowed at the rear for additional aisle and workingspace
3 A slightly longer boiler room (Dwg C) is obtained by allowing for possible future tube replacement from the rear ofthe boiler Allowance for door swing at the front provides sufficient aisle and working space at the front
Figure A1-21 Boiler Room Length (Typical Layouts)
BOILER HP 125-200 250-350 400-800
Dimension A 82 93 102
Dimension B 115 141 171
NOTES1 Recommended Minimum Distance Between Boiler and Wall Dimen-
sion ldquoArdquo allows for a ldquoclearrdquo 42 aisle between the water col-umn on the boiler and the wall If space permits this aisle
should be widened 2 Recommended Minimum Distance Between BoilersDimension ldquoBrdquo between boilers allows for a ldquoclearrdquo aisle of42 - 125 -200 hp48 - 250-350 hp60 - 400-800 hpIf space permits this aisle should be widened
Figure A1-22 Boiler Room Width (Typical Layout)
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Model CBLE 125-800 HP Boilers
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Model CBLE 125-800 HP Boilers
25
When the operating steam pressure is between 10 psig and 125 psig interpolatethe values from the efficiency tables
When the operating steam pressure is above 125 psig estimated efficiency can becalculated as follows
Example
Boiler 350 hpFuel natural gas
Operating steam pressure 200 psig
Find the fuel-to-steam efficiency at 100 firing rate From Table A1-16 for a 350hp boiler operating at 100 firing rate and an operating steam pressure of 125psig the efficiency is 825
Using Figure A1-12 note that the stack temperature increases 36 degF at the higheroperating pressure To estimate boiler efficiency use this rule of thumb For every40 degF increase in stack temperature efficiency decreases by 1 Since the stacktemperature rise is 36 degF the decrease in the boiler efficiency at 200 psig operatingpressure is calculated as follows 3640 =9 Therefore the boiler efficiency at200 psig operating pressure is 825 -9 = 816
Emissions The emission data included in this section consists of typical emission levels forModel CB boilers equipped with 60 30 25 and 20 ppm LE Options when firingnatural gas and No 2 oil
Notice
The data in Table A1-18 and Table A1-19 represent typical emission levels only
Guaranteed emission levels are available from your local Cleaver-Brooks authorized
representative
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Model CBLE 125-800 HP Boilers
26
BOILER
HP
OPERATING PRESSURE = 10 psig OPERATING PRESSURE = 125 psig
OF LOAD OF LOAD
25 50 75 100 25 50 75 100
125 833 836 834 832 804 809 810 810
150 844 846 845 843 815 820 820 821
200 850 853 851 849 822 827 827 827
250 850 847 840 833 820 820 816 813
300 853 853 846 839 826 827 822 819
350 853 857 852 845 826 832 828 825
400 845 847 846 844 818 822 824 822
500 855 857 855 852 828 832 833 831
600 857 860 858 856 829 835 836 835
700 857 862 860 857 830 836 836 836
800 858 861 859 856 831 836 837 835
Table A1-16 Predicted Fuel-to-Steam Efficiencies - Natural Gas
Figure A1-12 Predicted Stack Temperature Increase for Pressure Greater Than 125 psig
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Model CBLE 125-800 HP Boilers
27
Table A1-18 CB-LE Boilers - Natural Gas Emission Levels
POLLUTANT
ESTIMATED LEVEL
60 ppm 30 ppm 25 ppm 20 ppm 15 ppm 9 ppm
CO ppmA
lbMMBtu
50150B
004011
50150B
004011
50150B
004011
50150B
004011
50
004
50
004
NOx ppmA
lbMMBtu
60
007
30
0035
25
003
20
0024
15
0018
9
0011
SOx ppmA
lbMMBtu
1
0001
1
0001
1
0001
1
0001
1
0001
1
0001
HCVOC5 ppmA
lbMMBtu
10
0004
10
0004
10
0004
10
0004
10
0004
10
0004
PM ppmA
lbMMBtu
-
001
-
001
-
001
-
001
-
001
-
001
A ppm levels are given on a dry volume basis and corrected to 3 oxygen (15 excess air)
B CO emission for 60 30 25 amp 20 ppm system is 50 ppm (004 lbMMBtu) when boiler is operating above 50 of rated capacity
CO emission is 150 ppm (011 lbMMBtu) when boiler is operating below 50 of rated capacity
Table A1-17 Predicted Fuel-to-Steam Efficiencies - No 2 Oil
BOILER
HP
OPERATING PRESSURE = 10 psig OPERATING PRESSURE = 125 psig
OF LOAD OF LOAD
25 50 75 100 25 50 75 100
125 867 869 867 866 837 842 843 843
150 878 880 878 876 848 853 853 854
200 884 887 884 882 856 860 860 860
250 883 881 874 867 853 853 849 847
300 886 887 880 873 859 860 855 852
350 886 890 885 878 859 866 861 858
400 879 881 879 876 851 855 856 855
500 889 890 889 886 861 865 866 864
600 890 894 892 890 862 868 869 868
700 891 895 893 891 863 869 870 869
800 892 895 893 890 864 869 870 868
Table A1-19 CB-LE Boilers - No 2 Oil Emission Levels
POLLUTANTESTIMATED LEVEL
60 ppm LE Option 30 25 20 ppm LE Option 15 ppm 9 ppm
CO ppmA
lbMMBtu
50
0039
50
0039
50
0039
50
0039
NOx ppmA
lbMMBtu140
018690
012085
011370
0093
SOx ppmA
lbMMBtu
278
052
278
052
278
052
278
052
HCVOCs ppmA
lbMMBtu
4
0002
4
0002
4
0002
4
0002
PM ppmA
lbMMBtu
-
0025
-
0025
-
0025
-
0025
A ppm levels are given on a dry volume basis and corrected to 3 oxygen (15 excess air)
BASED ON THE FOLLOWING CONSTITUENT LEVELS
Fuel-bound Nitrogen content = 0015 by weight
Sulfur content = 05 by weight
Ash content = 001 by weight
09-09
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Model CBLE 125-800 HP Boilers
28
ENGINEERING DATA
Sound Level Table A1-20 gives a summary of predicted sound pressure levels for Model CBboilers with 30 ppm LE Options Contact your local Cleaver-Brooks authorizedrepresentative for sound levels or other LE Options
Units - The units for the sound level tables are dbA (decibels measured on the A-weighted scale) in reference to 00002 microbars (20 micro-Newtons per square
meter) Their reference are standardly used in specifying and reporting soundpressure levels on industrial equipment
Test Method - The sound pressure levels in the above tables were obtained fromtests in accordance with the ldquoABMA Test Code for the Measurement of Sound fromPackaged Boilersrdquo In accordance with this code the sound pressure levels reportedwere measured on the boiler centerline 4-12 feet vertically above the bottom of thebase rails and 3 feet horizontally in front of the end of the blower motor or frontsurface of the electrical cabinet
Sound Level Meter - The sound level meter used complies with ANSI S14 Type 1(Precision) The readings are taken with the meter set for slow response andcorrected for background levels
Sound Pressure - The large size boilers the need for auxiliary equipment and thenecessary interconnecting piping make it impractical (and sometimes impossible) toprovide a boiler testing environment which is suitable for taking the data needed todevelop Sound Pressure Power levels
Typical Values - Sound pressure levels (dbA) for the same boiler will vary betweenboiler rooms Sound levels will vary with motor type NOx levels and altitudes Inaddition variations will occur between different people using different sound meterson the same boiler And finally no two boilers can be expected to give precisely thesame sound levels For these reasons we can only predict but not guarantee soundlevels (dbA)
BOILER HP 125 150 200 250 300 350 400 500 600 700 800
HFO dbA 84 84 84 83 84 85 84 85 85 88 90
LFO dbA 82 82 83 81 82 83 82 83 83 84 89
HFG dbA 82 82 83 82 83 84 83 83 85 87 90
LFG dbA 81 81 82 81 82 83 81 81 82 84 88
NOTES1 Sound pressure levels measured on boilers operating in various locations and ex-
pressed in dbA are as shown2 Based on standard altitude fans and fan motors 60 Hz3 Contact your local Cleaver-Brooks authorized representative for sound levels of 60 25or 20 ppm LE Options
ABBREVIATIONS
HF = High Fire LF = Low Fire O = Oil G = Gas
Table A1-20 Model CBLE Predicted Sound Levels 30 ppm NOx Systemss
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Model CBLE 125-800 HP Boilers
29
Gas-Fired Burners Table A1-21 shows gas pressure with standard over- and undersized gas trains
Table A1-22 shows minimum required gas pressure altitude conversion
Figure A1-13 shows standard gas train sizes and locations for Model CB FiretubeBoilers
Figure A1-14 shows typical gas train piping layouts for multiple boiler applications
Figure A1-15 shows standard gas train components
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Model CBLE 125-800 HP Boilers
30
Table A1-21 Standard Undersize and Oversize Gas Trains
CBLE
BOILER HP GAS TRAINSIZE
UPSTREAMVALVE
DOWNSTREAMVALVE
EMISSIONS LEVEL 09 ppm 15 ppm 20 ppm 30 ppm 60 ppm UC
125 HP 15 in BB BB 33 - 49 psi 33 - 49 psi 08 - 50 psi 07 - 50 psi 07 - 50 psi 07 - 50 ps
125 HP 15 in PC PC 34 - 50 psi 34 - 50 psi 09 - 50 psi 08 - 50 psi 08 - 50 psi 08 - 50 ps
125 HP 20 in BB BB 31 - 33 psi 31 - 33 psi 06 - 08 psi 06 - 07 psi 05 - 07 psi 05 - 07 ps
125 HP 20 in PC PC 31 - 34 psi 31 - 34 psi 06 - 09 psi 06 - 08 psi 06 - 08 psi 05 - 08 ps
125 HP 25 in PC PC 30 - 31 psi 30 - 31 psi 04 - 06 psi 04 - 06 psi 04 - 05 psi 04 - 05 ps
125 HP 30 in PC PC 29 - 30 psi 29 - 30 psi 04 - 04 psi 04 - 04 psi 04 - 04 psi 03 - 04 ps
125 HP 40 in PC PC 29 - 29 psi 29 - 29 psi 04 - 04 psi 03 - 04 psi 03 - 04 psi 03 - 03 ps
150 HP 15 in BB BB 37 - 55 psi 39 - 58 psi 10 - 47 psi 09 - 50 psi 09 - 50 psi 09 - 50 ps
150 HP 15 in PC PC 38 - 57 psi 40 - 60 psi 11 - 42 psi 11 - 50 psi 10 - 50 psi 10 - 50 ps
150 HP 20 in BB BB 34 - 37 psi 36 - 39 psi 07 - 10 psi 06 - 09 psi 06 - 09 psi 06 - 09 ps
150 HP 20 in PC PC 34 - 38 psi 36 - 40 psi 07 - 11 psi 07 - 11 psi 07 - 10 psi 06 - 10 ps
150 HP 25 in PC PC 32 - 34 psi 34 - 36 psi 05 - 07 psi 04 - 06 psi 04 - 06 psi 04 - 06 ps
150 HP 30 in PC PC 32 - 32 psi 34 - 34 psi 04 - 05 psi 04 - 04 psi 04 - 04 psi 03 - 04 ps
150 HP 40 in PC PC 31 - 32 psi 33 - 34 psi 04 - 04 psi 03 - 04 psi 03 - 04 psi 03 - 03 ps
200 HP 15 in BB BB 46 - 69 psi 50 - 75 psi 16 - 50 psi 15 - 50 psi 15 - 50 ps
200 HP 15 in PC PC 48 - 72 psi 52 - 78 psi 18 - 50 psi 17 - 50 psi 17 - 50 ps
200 HP 20 in BB BB 41 - 46 psi 45 - 50 psi 10 - 16 psi 10 - 15 psi 10 - 15 ps
200 HP 20 in PC PC 41 - 48 psi 45 - 52 psi 11 - 18 psi 11 - 17 psi 10 - 17 ps
200 HP 25 in PC PC 38 - 41 psi 42 - 45 psi 07 - 10 psi 07 - 10 psi 06 - 10 ps
200 HP 30 in PC PC 36 - 38 psi 40 - 42 psi 06 - 07 psi 05 - 07 psi 05 - 06 ps
200 HP 40 in PC PC 36 - 36 psi 40 - 40 psi 05 - 06 psi 05 - 05 psi 04 - 05 ps
250 HP 15 in BB BB 41 - 62 psi 44 - 67 psi 24 - 50 psi 24 - 27 psi 24 - 26 psi 23 - 26 ps
250 HP 15 in PC PC 45 - 67 psi 48 - 72 psi 28 - 50 psi 27 - 28 psi 27 - 27 psi 27 - 27 ps
250 HP 20 in BB BB 33 - 38 psi 37 - 41 psi 16 - 24 psi 16 - 24 psi 16 - 24 psi 15 - 23 ps
250 HP 20 in PC PC 34 - 40 psi 37 - 43 psi 17 - 28 psi 17 - 27 psi 16 - 27 psi 16 - 27 ps
250 HP 25 in PC PC 29 - 33 psi 32 - 37 psi 11 - 16 psi 11 - 16 psi 11 - 16 psi 10 - 15 ps
250 HP 30 in PC PC 27 - 29 psi 31 - 32 psi 09 - 11 psi 09 - 11 psi 09 - 11 psi 09 - 10 ps
250 HP 40 in PC PC 26 - 27 psi 29 - 31 psi 08 - 09 psi 08 - 09 psi 08 - 09 psi 08 - 09 ps
300 HP 15 in - 20 in BB BB 55 - 83 psi 57 - 85 psi 30 - 50 psi 30 - 36 psi 30 - 35 psi 30 - 35 ps
300 HP 15 in - 20 in PC PC 58 - 87 psi 60 - 90 psi 33 - 50 psi 33 - 37 psi 33 - 36 psi 33 - 36 ps
300 HP 20 in BB BB 46 - 55 psi 47 - 57 psi 21 - 30 psi 21 - 30 psi 20 - 30 psi 20 - 30 ps
300 HP 20 in PC PC 47 - 58 psi 48 - 60 psi 22 - 33 psi 22 - 33 psi 21 - 33 psi 21 - 33 ps
300 HP 30 in PC PC 39 - 46 psi 40 - 47 psi 13 - 21 psi 13 - 21 psi 12 - 20 psi 12 - 20 ps
300 HP 40 in PC PC 37 - 39 psi 39 - 40 psi 11 - 13 psi 11 - 13 psi 10 - 12 psi 10 - 12 ps
350 HP 15 in - 20 in BB BB 64 - 90 psi 62 - 90 psi 42 - 50 psi 42 - 50 psi 41 - 50 psi 41 - 50 ps
350 HP 15 in - 20 in PC PC 68 - 90 psi 66 - 90 psi 46 - 50 psi 46 - 50 psi 45 - 50 psi 45 - 50 ps
350 HP 20 in BB BB 54 - 64 psi 53 - 62 psi 32 - 42 psi 32 - 42 psi 32 - 41 psi 31 - 41 ps
350 HP 20 in PC PC 56 - 68 psi 54 - 66 psi 34 - 46 psi 34 - 46 psi 33 - 45 psi 33 - 45 ps
350 HP 25 in PC PC 43 - 54 psi 42 - 53 psi 21 - 32 psi 21 - 32 psi 20 - 32 psi 20 - 31 ps
350 HP 30 in PC PC 40 - 43 psi 38 - 42 psi 17 - 21 psi 17 - 21 psi 17 - 20 psi 16 - 20 ps
350 HP 40 in PC PC 37 - 40 psi 36 - 38 psi 15 - 17 psi 15 - 17 psi 14 - 17 psi 14 - 16 ps
400 HP 15 in - 20 in BB BB 69 - 90 psi 69 - 90 psi 46 - 50 psi 46 - 50 psi 45 - 50 psi 45 - 50 ps
400 HP 15 in - 20 in PC PC 74 - 90 psi 75 - 90 psi 51 - 87 psi 51 - 77 psi 51 - 77 psi 51 - 77 ps
400 HP 20 in BB BB 55 - 69 psi 56 - 69 psi 32 - 46 psi 32 - 46 psi 32 - 45 psi 32 - 45 ps
400 HP 20 in PC PC 57 - 74 psi 58 - 75 psi 34 - 50 psi 34 - 50 psi 34 - 50 psi 34 - 50 ps
400 HP 25 in PC PC 41 - 55 psi 42 - 56 psi 18 - 32 psi 18 - 32 psi 18 - 32 psi 18 - 32 ps
400 HP 30 in PC PC 37 - 41 psi 38 - 42 psi 13 - 18 psi 13 - 18 psi 13 - 18 psi 13 - 18 ps
400 HP 40 in PC PC 34 - 37 psi 35 - 38 psi 11 - 13 psi 10 - 13 psi 10 - 13 psi 10 - 13 ps
500 HP 20 in - 25 in BB PC 58 - 76 psi 58 - 76 psi 46 - 50 psi 46 - 50 psi 45 - 50 psi 45 - 50 ps
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Model CBLE 125-800 HP Boilers
31
BB = Butter Ball PC = Plug Cock
NOTE In cases where the gas train increases in size after the regulating valve two diameters are listed The first number is the customer connection size
500 HP 20 in - 25 in PC PC 60 - 83 psi 60 - 83 psi 48 - 50 psi 47 - 50 psi 47 - 50 psi 47 - 50 psi
500 HP 25 in PC PC 39 - 58 psi 39 - 58 psi 27 - 46 psi 27 - 46 psi 27 - 45 psi 26 - 45 psi
500 HP 30 in PC PC 33 - 39 psi 33 - 39 psi 20 - 27 psi 20 - 27 psi 20 - 27 psi 20 - 26 psi
500 HP 40 in PC PC 28 - 33 psi 28 - 33 psi 16 - 20 psi 16 - 20 psi 15 - 20 psi 15 - 20 psi
600 HP 20 in - 25 in BB PC 80 - 90 psi 80 - 90 psi 65 - 90 psi 65 - 90 psi 64 - 89 psi 63 - 88 psi
600 HP 20 in - 25 in PC PC 82 - 90 psi 82 - 90 psi 67 - 100 psi 67 - 100 psi 66 - 99 psi 66 - 99 psi
600 HP 25 in PC PC 54 - 80 psi 54 - 80 psi 39 - 50 psi 38 - 50 psi 38 - 50 psi 37 - 50 psi
600 HP 25 in - 30 in PC PC 52 - 54 psi 52 - 54 psi 37 - 39 psi 36 - 38 psi 35 - 38 psi 35 - 37 psi
600 HP 30 in PC PC 43 - 52 psi 43 - 52 psi 28 - 37 psi 27 - 36 psi 27 - 35 psi 26 - 35 psi
600 HP 40 in PC PC 37 - 43 psi 37 - 43 psi 22 - 28 psi 21 - 27 psi 20 - 27 psi 20 - 26 psi
700 HP 20 in - 30 in BB PC 110 - 150 psi 107 - 150 psi 87 - 131 psi 86 - 130 psi 86 - 129 psi 86 - 128 psi
700 HP 20 in - 30 in PC PC 113 - 150 psi 110 - 150 psi 90 - 135 psi 89 - 134 psi 89 - 134 psi 89 - 133 psi
700 HP 25 in - 30 in PC PC 71 - 90 psi 68 - 90 psi 48 - 50 psi 47 - 50 psi 47 - 50 psi 46 - 50 psi
700 HP 30 in PC PC 60 - 71 psi 57 - 68 psi 36 - 48 psi 36 - 47 psi 35 - 47 psi 35 - 46 psi
700 HP 40 in PC PC 51 - 60 psi 48 - 57 psi 28 - 36 psi 27 - 36 psi 27 - 35 psi 26 - 35 psi
800 HP 20 in - 30 in BB PC 108 - 150 psi 107 - 150 psi 106 - 150 psi
800 HP 20 in - 30 in PC PC 112 - 150 psi 111 - 150 psi 110 - 150 psi800 HP 25 in - 30 in PC PC 61 - 90 psi 60 - 100 psi 59 - 100 psi
800 HP 30 in PC PC 48 - 61 psi 47 - 50 psi 46 - 50 psi
800 HP 40 in PC PC 35 - 48 psi 34 - 47 psi 34 - 46 psi
Standard Gas Train size is highlighted
Table A1-21 Standard Undersize and Oversize Gas Trains (Continued)
CBLE
BOILER HP GAS TRAINSIZE
UPSTREAMVALVE
DOWNSTREAMVALVE
EMISSIONS LEVEL 09 ppm 15 ppm 20 ppm 30 ppm 60 ppm UC
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Model CBLE 125-800 HP Boilers
32
ALTITUDE(FT)
CORRECTIONFACTOR
ALTITUDE(FT)
CORRECTIONFACTOR
1000 104 6000 1252000 107 7000 130
3000 111 8000 135
4000 116 9000 140
5000 121 - -
To obtain minimum required gas pressure at altitudesabove 700 feet multiply the pressure by the listed factorsInches WC x 0577 = ozsq-inOzsq-in x 1732 = Inches WCInches WC x 00361= psigOzsq-in x 00625 = psigPsig x 2771 = Inches WCPsig x 160 = Ozsq-in
Table A1-22 Minimum Required Regulated Gas Pressure
Altitude Conversion
BOILERHP
TYPE OF GAS AND HEAT CONTENT
NATURAL GAS1000 (Btucu-ft)
PROPANE GAS2550 (Btucu-ft)
125 5103 2000
150 6124 2402
200 8165 3202
250 10206 4002
300 12247 4802
350 14280 5600
400 16329 6404
500 20415 8006
600 24494 9605
700 28576 11206
800 32659 12807
Table A1-23 Maximum Gas Consumption (CFH)
for Natural Gas and Propane Vapor
BOILER
HP
MODEL CB
CONNECTION SIZE
(IN NPT)
LOCATIONDIMENSION
ldquoArdquo (IN)
125-200 1-12 52
250-350 2 56
400 2 58
500 2-12 60
600 2-12 - 3 71
700-800 3 65
Figure A1-13 Standard Gas Train Connection Size and Location
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Model CBLE 125-800 HP Boilers
33
Oil-Fired Burners Fuel oil consumption information is shown on the boiler rating sheets in theDimensions and Rating Section
Figure A1-16 shows the oil connection sizes and locations for Model CB Boilersfiring No 2 oil
Figure A1-17 through Figure A1-18 show typical oil systems and layouts
Figure A1-19 and Figure A1-20 show the detail of an oil transfer tank (day tank)typically utilized to provide a storage reservoir between the oil system supply pumpand the boiler oil pump
General BoilerInformation
Table A1-24 shows blowdown tank sizing information
Table A1-25 provides heating surface information
Table A1-26 provides steam volume and disengaging area information
Table A1-27 provides recommended steam nozzle sizes
Table A1-28 provides recommended non-return valve sizes
Boiler RoomInformation
Figure A1-21 shows typical boiler room length requirements
Figure A1-22 shows typical boiler room width requirements
Figure A1-23 shows typical breeching arrangements
Stack SupportCapabilities
All standard Cleaver-Brooks Firetube Boilers with an LE option can support up to2000 lbs without additional support
LE Boilers 250 hp through 800 hp can be reinforced to support 3000 lbs
StackBreechingSize Criteria
The design of the stack and breeching must provide the required draft at each boilerflue gas outlet Proper draft is critical to burner performance
Although constant pressure at the flue gas outlet of the Model CB-LE is not requiredit is necessary to size the stackbreeching to limit flue gas pressure variation Theallowable pressure range is ndash025 WC to +025 WC
For additional information please review Section I4 General Engineering Data(Stacks) and Section F Stacks Stack and breeching sizes should always be providedby a reputable stack supplier who will design the stack and breeching system basedon the above criteria Your local Cleaver-Brooks authorized representative is capableof assisting in your evaluation of the stackbreeching design
Boiler RoomCombustion Air
When determining boiler room air requirements the size of the room air flow andvelocity of air must be reviewed as follows
1 Size (area) and location of air supply openings in boiler room
A Two (2) permanent air supply openings in the outer walls of the boiler room
are recommended Locate (1) at each end of the boiler room preferablybelow a height of 7 feet This allows air to sweep the length of the boiler
B Air supply openings can be louvered for weather protection but they shouldnot be covered with fine mesh wire as this type of covering has poor air flowqualities and is subject to clogging by dust or dirt
C A vent fan in the boiler room is not recommended as it could create a slightvacuum under certain conditions and cause variations in the quantity ofcombustion air This can result in unsatisfactory burner performance
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Model CBLE 125-800 HP Boilers
34
D Under no condition should the total area of the air supply openings be lessthan (1) square foot
E Size the openings by using the formulaArea (sq-ft) = CFMFPM
2 Amount of air required (cfm)
A Combustion Air = Rated bhp x 8 cfmbhp
B Ventilation Air = Maximum bhp x 2 cfmbhp
C Total recommended air = 10 cfmbhp - up to 1000 feet elevation Add 3percent more per 1000 feet of added elevation
3 Acceptable air velocity in Boiler Room (fpm)
A From floor to (7) foot height - 250 fpm
B Above (7) foot height - 500 fpm
Example Determine the area of the boiler room air supply openings for (1) 300 hpboiler at 800 feet altitude The air openings are to be 5 feet above floor level
bull Air required 300 x 10 = 3000 cfm (from 2B above)
bull Air velocity Up to 7 feet = 250 fpm (from 3 above)
bull Area Required Area = cfm = 3000250 = 12 sq-ft total
bull AreaOpening 122 = 6 sq-ftopening (2 required)
Notice
Consult local codes which may supersede these requirements
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Model CBLE 125-800 HP Boilers
35
This figure illustrates the basic gas valve arrangement on Cleaver-BrooksModel CB boiler and shows the contractors connection point The valves andcontrols between the contractor connection point and the gas main in thestreet are representative of a typical installation Actual requirements mayvary depending on local codes or local gas company requirements which
should be investigated prior to preparation of specifications and prior to con-struction
A Utilities service valveB Utilities service regulatorC Gas meterD Piping from meter to boiler
The size of the gas line from the meter to the gas pressure regulator at theboiler can be very important if gas pressures are marginal The gas line sizingis dependent on
1 Gas pressure at outlet of gas meter (C)2 Rate of gas flow required CFH3 Length of pipe run (D)4 Pressure required at contractor connection point
The local gas utility will advise the pressure that is available at the outlet oftheir meter
Figure A1-14 Typical Gas Piping Layout
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Model CBLE 125-800 HP Boilers
36
5
6
S
1
3
42
PILOT GAS LINE
S
S
MAIN GAS LINE
M M
ToBurner
GasSupply
11
10
97
12138
14 15
FLOW
FLOW
Figure A1-15 Model CB-LE Gas Train Components
BOILER
HP
MODEL CB
SUPPLYANDRE-
TURNCONN SIZES
(IN)(NPT)
A(IN)
RECOMMENDED OIL LINEA
SIZES(STANDARD PIPE)
(IN - IPS)
STOR-AGE
TANK TOBOILER
OR PUMPCONNECT
PUMPTO
BOILER
RE-TURN
LINE TOTANK
125150 200
34 12-12 1 1 1
250300350
34 34 1 1 1
400500600
34 11-34 1 1 1
700800
1 11-34 1 1 1
NOTE See No 2 Oil Line Sizing Instruction for systems with other conditions A For suction line condition with a maximum of 10 Feet of lift and a
total of 100 feet of suction line
Figure A1-16 No2 Oil Connection Size Location and Recommended Line Sizes
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Model CBLE 125-800 HP Boilers
37
Figure A1-17 No 2 Oil Piping Single Boiler
Installation Remote Oil Pump
Figure A1-18 No 2 Oil Piping Multiple Boiler
Installation Remote Oil Pumps
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Model CBLE 125-800 HP Boilers
38
Figure A1-19 No 2 Oil Piping Multiple Boiler
Installation
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Model CBLE 125-800 HP Boilers
39
Figure A1-20 No 2 Oil Piping Typical Arrangement
Table A1-24 Model CB-LE Blowdown
Tank Sizing
BOILER HP WATER (GAL)
125 97
150 118
200 145
250 146
300 176
350 210
400 177
500 209
600 250
700 800 296
NOTE Quantity of water removed from boiler by lowering normal water line 4
BOILER
HP
HEATING SURFACE (SQ-FT)
FIRESIDE WATERSIDE
125 625 679
150 750 820
200 1000 1092
250 1250 1346
300 1500 1623
350 1750 1932
400 2000 2151
500 2500 2691
600 3000 3262
700 800 3500 3810
Table A1-25 Heating Surface Model CB-LE
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Model CBLE 125-800 HP Boilers
40
BOILER HPSTEAM VOLUME CU-FT
STEAM DISENGAGING AREASQ-IN
HIGH PRESSUREA LOW PRESSUREB HIGH PRESSUREA LOW PRESSUREB
125 254 366 5371 5887
150 307 443 6511 7138
200 377 544 7985 8752
250 492 706 7980 8695
300 595 853 9651 10516
350 709 1017 11507 12538
400 721 979 9793 10593
500 837 1137 11376 12303
600 1015 1378 13787 14911
700-800 1198 1627 16273 17600
NOTE Based on normal water levelA Based on 150 psig design pressureB Based on 15 psig design pressure
Table A1-26 Steam Volume and Disengaging Area
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Model CBLE 125-800 HP Boilers
41
BOILERHP
BOILERCAPACITY(LBSHR)
OPERATING PRESSURES (PSIG)
50 75 100 125 150 175 200 250
100 3450
2-12 2-12 NA NA NA NA NA NA
125 4313 3 2-12 2-12 2-12 NA NA NA NA
150 5175 3 3 2-12 2-12 2-12 2-12 NA NA
200 6900 3 3 3 3 3 2-12 2-12 2-12
250 8625 4 3 3 3 3 3 3 3
300 10350 4 4 4 3 3 3 3 3
350 12025 4 4 4 4 4 3 3 3
400 13800 5 4 4 4 4 4 4 3
500 17210 6 5 5 4 4 4 4 4
600 20700 6 6 5 5 5 4 4 4
700 24150 6 6 6 5 5 5 5 4
800 27600 6 6 6 6 6 5 5 5
NOTE Valve sizes (300 Flanges) given in inchesStandard Non-Return valve selections limited to a maximum 2 to 1 turndown(50 of full load) selections based on typical non-return valve sizing recommen-dations For final valve selection contact your C-B authorized representative Forhigh turndown applications see Boiler Book Section I3 Table I3-3 Indicates pressure drop of less than 75 psig All other selections are less than6 psig pressure drop
Boiler HP
OPERATINGPRESSURE
PSIG125 150 200 250 300 350 400 500 600 700 800
15 8 8 10 10 12 12 12 12 12 12 12
30 6 6 8 8 8 10 10 10 12 12 12
40 6 6 6 8 8 8 10 10 10 12 12
50 6 6 6 6 8 8 8 10 10 10 12
75 4 4 6 6 6 8 8 8 8 10 10
100 4 4 6 6 6 6 6 8 8 8 10
125 4 4 4 6 6 6 6 8 8 8 8
150 3 3 4 4 6 6 6 6 6 8 8
200 25 3 4 4 4 4 6 6 6 6 6
250 25 3 3 4 4 4 4 6 6 6 6
NOTES1 Steam nozzle sizes given in inches2 Recommended steam nozzle sizes based on 4000 to 5000 fpm steam velocity3 All standard steam nozzle sizes for 150 psig design pressure or greater are the sameas 125 psig operating pressure on the above table To increase or decrease the standardsize request the change with your local Cleaver-Brooks authorized representative4 Shaded area denotes special surge load baffles must be installed to avoid possible wa-ter carry-over5 For incremental operating pressures see Table I3-1 Steam Systems Fundamentals
Table A1-28 Recommended Steam Nozzle Size (for
4000 to 5000 fpm nozzle velocity)
Table A1-29 Recommended Non-Return Valve Size
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Model CBLE 125-800 HP Boilers
42
1 Shortest boiler room length (Dwg A) is obtained by allowing for possible future tube replacement (from front or rearof boiler) through a window or doorway Allowance is only made for minimum door swing at each end of the boilerThis arrangement provides sufficient aisle space at the front of the boiler but a ldquotightrdquo space condition at the rear
If space permits approximately 15 additional feet should be allowed at the rear for additional aisle and workingspace
2 Next shortest boiler room length (Dwg B) is obtained by allowing for possible future tube replacement from thefront of the boiler Allowance is only made for minimum door swing at the rear
If space permits approximately 15 additional feet should be allowed at the rear for additional aisle and workingspace
3 A slightly longer boiler room (Dwg C) is obtained by allowing for possible future tube replacement from the rear ofthe boiler Allowance for door swing at the front provides sufficient aisle and working space at the front
Figure A1-21 Boiler Room Length (Typical Layouts)
BOILER HP 125-200 250-350 400-800
Dimension A 82 93 102
Dimension B 115 141 171
NOTES1 Recommended Minimum Distance Between Boiler and Wall Dimen-
sion ldquoArdquo allows for a ldquoclearrdquo 42 aisle between the water col-umn on the boiler and the wall If space permits this aisle
should be widened 2 Recommended Minimum Distance Between BoilersDimension ldquoBrdquo between boilers allows for a ldquoclearrdquo aisle of42 - 125 -200 hp48 - 250-350 hp60 - 400-800 hpIf space permits this aisle should be widened
Figure A1-22 Boiler Room Width (Typical Layout)
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Model CBLE 125-800 HP Boilers
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Model CBLE 125-800 HP Boilers
26
BOILER
HP
OPERATING PRESSURE = 10 psig OPERATING PRESSURE = 125 psig
OF LOAD OF LOAD
25 50 75 100 25 50 75 100
125 833 836 834 832 804 809 810 810
150 844 846 845 843 815 820 820 821
200 850 853 851 849 822 827 827 827
250 850 847 840 833 820 820 816 813
300 853 853 846 839 826 827 822 819
350 853 857 852 845 826 832 828 825
400 845 847 846 844 818 822 824 822
500 855 857 855 852 828 832 833 831
600 857 860 858 856 829 835 836 835
700 857 862 860 857 830 836 836 836
800 858 861 859 856 831 836 837 835
Table A1-16 Predicted Fuel-to-Steam Efficiencies - Natural Gas
Figure A1-12 Predicted Stack Temperature Increase for Pressure Greater Than 125 psig
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Model CBLE 125-800 HP Boilers
27
Table A1-18 CB-LE Boilers - Natural Gas Emission Levels
POLLUTANT
ESTIMATED LEVEL
60 ppm 30 ppm 25 ppm 20 ppm 15 ppm 9 ppm
CO ppmA
lbMMBtu
50150B
004011
50150B
004011
50150B
004011
50150B
004011
50
004
50
004
NOx ppmA
lbMMBtu
60
007
30
0035
25
003
20
0024
15
0018
9
0011
SOx ppmA
lbMMBtu
1
0001
1
0001
1
0001
1
0001
1
0001
1
0001
HCVOC5 ppmA
lbMMBtu
10
0004
10
0004
10
0004
10
0004
10
0004
10
0004
PM ppmA
lbMMBtu
-
001
-
001
-
001
-
001
-
001
-
001
A ppm levels are given on a dry volume basis and corrected to 3 oxygen (15 excess air)
B CO emission for 60 30 25 amp 20 ppm system is 50 ppm (004 lbMMBtu) when boiler is operating above 50 of rated capacity
CO emission is 150 ppm (011 lbMMBtu) when boiler is operating below 50 of rated capacity
Table A1-17 Predicted Fuel-to-Steam Efficiencies - No 2 Oil
BOILER
HP
OPERATING PRESSURE = 10 psig OPERATING PRESSURE = 125 psig
OF LOAD OF LOAD
25 50 75 100 25 50 75 100
125 867 869 867 866 837 842 843 843
150 878 880 878 876 848 853 853 854
200 884 887 884 882 856 860 860 860
250 883 881 874 867 853 853 849 847
300 886 887 880 873 859 860 855 852
350 886 890 885 878 859 866 861 858
400 879 881 879 876 851 855 856 855
500 889 890 889 886 861 865 866 864
600 890 894 892 890 862 868 869 868
700 891 895 893 891 863 869 870 869
800 892 895 893 890 864 869 870 868
Table A1-19 CB-LE Boilers - No 2 Oil Emission Levels
POLLUTANTESTIMATED LEVEL
60 ppm LE Option 30 25 20 ppm LE Option 15 ppm 9 ppm
CO ppmA
lbMMBtu
50
0039
50
0039
50
0039
50
0039
NOx ppmA
lbMMBtu140
018690
012085
011370
0093
SOx ppmA
lbMMBtu
278
052
278
052
278
052
278
052
HCVOCs ppmA
lbMMBtu
4
0002
4
0002
4
0002
4
0002
PM ppmA
lbMMBtu
-
0025
-
0025
-
0025
-
0025
A ppm levels are given on a dry volume basis and corrected to 3 oxygen (15 excess air)
BASED ON THE FOLLOWING CONSTITUENT LEVELS
Fuel-bound Nitrogen content = 0015 by weight
Sulfur content = 05 by weight
Ash content = 001 by weight
09-09
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Model CBLE 125-800 HP Boilers
28
ENGINEERING DATA
Sound Level Table A1-20 gives a summary of predicted sound pressure levels for Model CBboilers with 30 ppm LE Options Contact your local Cleaver-Brooks authorizedrepresentative for sound levels or other LE Options
Units - The units for the sound level tables are dbA (decibels measured on the A-weighted scale) in reference to 00002 microbars (20 micro-Newtons per square
meter) Their reference are standardly used in specifying and reporting soundpressure levels on industrial equipment
Test Method - The sound pressure levels in the above tables were obtained fromtests in accordance with the ldquoABMA Test Code for the Measurement of Sound fromPackaged Boilersrdquo In accordance with this code the sound pressure levels reportedwere measured on the boiler centerline 4-12 feet vertically above the bottom of thebase rails and 3 feet horizontally in front of the end of the blower motor or frontsurface of the electrical cabinet
Sound Level Meter - The sound level meter used complies with ANSI S14 Type 1(Precision) The readings are taken with the meter set for slow response andcorrected for background levels
Sound Pressure - The large size boilers the need for auxiliary equipment and thenecessary interconnecting piping make it impractical (and sometimes impossible) toprovide a boiler testing environment which is suitable for taking the data needed todevelop Sound Pressure Power levels
Typical Values - Sound pressure levels (dbA) for the same boiler will vary betweenboiler rooms Sound levels will vary with motor type NOx levels and altitudes Inaddition variations will occur between different people using different sound meterson the same boiler And finally no two boilers can be expected to give precisely thesame sound levels For these reasons we can only predict but not guarantee soundlevels (dbA)
BOILER HP 125 150 200 250 300 350 400 500 600 700 800
HFO dbA 84 84 84 83 84 85 84 85 85 88 90
LFO dbA 82 82 83 81 82 83 82 83 83 84 89
HFG dbA 82 82 83 82 83 84 83 83 85 87 90
LFG dbA 81 81 82 81 82 83 81 81 82 84 88
NOTES1 Sound pressure levels measured on boilers operating in various locations and ex-
pressed in dbA are as shown2 Based on standard altitude fans and fan motors 60 Hz3 Contact your local Cleaver-Brooks authorized representative for sound levels of 60 25or 20 ppm LE Options
ABBREVIATIONS
HF = High Fire LF = Low Fire O = Oil G = Gas
Table A1-20 Model CBLE Predicted Sound Levels 30 ppm NOx Systemss
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Model CBLE 125-800 HP Boilers
29
Gas-Fired Burners Table A1-21 shows gas pressure with standard over- and undersized gas trains
Table A1-22 shows minimum required gas pressure altitude conversion
Figure A1-13 shows standard gas train sizes and locations for Model CB FiretubeBoilers
Figure A1-14 shows typical gas train piping layouts for multiple boiler applications
Figure A1-15 shows standard gas train components
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Model CBLE 125-800 HP Boilers
30
Table A1-21 Standard Undersize and Oversize Gas Trains
CBLE
BOILER HP GAS TRAINSIZE
UPSTREAMVALVE
DOWNSTREAMVALVE
EMISSIONS LEVEL 09 ppm 15 ppm 20 ppm 30 ppm 60 ppm UC
125 HP 15 in BB BB 33 - 49 psi 33 - 49 psi 08 - 50 psi 07 - 50 psi 07 - 50 psi 07 - 50 ps
125 HP 15 in PC PC 34 - 50 psi 34 - 50 psi 09 - 50 psi 08 - 50 psi 08 - 50 psi 08 - 50 ps
125 HP 20 in BB BB 31 - 33 psi 31 - 33 psi 06 - 08 psi 06 - 07 psi 05 - 07 psi 05 - 07 ps
125 HP 20 in PC PC 31 - 34 psi 31 - 34 psi 06 - 09 psi 06 - 08 psi 06 - 08 psi 05 - 08 ps
125 HP 25 in PC PC 30 - 31 psi 30 - 31 psi 04 - 06 psi 04 - 06 psi 04 - 05 psi 04 - 05 ps
125 HP 30 in PC PC 29 - 30 psi 29 - 30 psi 04 - 04 psi 04 - 04 psi 04 - 04 psi 03 - 04 ps
125 HP 40 in PC PC 29 - 29 psi 29 - 29 psi 04 - 04 psi 03 - 04 psi 03 - 04 psi 03 - 03 ps
150 HP 15 in BB BB 37 - 55 psi 39 - 58 psi 10 - 47 psi 09 - 50 psi 09 - 50 psi 09 - 50 ps
150 HP 15 in PC PC 38 - 57 psi 40 - 60 psi 11 - 42 psi 11 - 50 psi 10 - 50 psi 10 - 50 ps
150 HP 20 in BB BB 34 - 37 psi 36 - 39 psi 07 - 10 psi 06 - 09 psi 06 - 09 psi 06 - 09 ps
150 HP 20 in PC PC 34 - 38 psi 36 - 40 psi 07 - 11 psi 07 - 11 psi 07 - 10 psi 06 - 10 ps
150 HP 25 in PC PC 32 - 34 psi 34 - 36 psi 05 - 07 psi 04 - 06 psi 04 - 06 psi 04 - 06 ps
150 HP 30 in PC PC 32 - 32 psi 34 - 34 psi 04 - 05 psi 04 - 04 psi 04 - 04 psi 03 - 04 ps
150 HP 40 in PC PC 31 - 32 psi 33 - 34 psi 04 - 04 psi 03 - 04 psi 03 - 04 psi 03 - 03 ps
200 HP 15 in BB BB 46 - 69 psi 50 - 75 psi 16 - 50 psi 15 - 50 psi 15 - 50 ps
200 HP 15 in PC PC 48 - 72 psi 52 - 78 psi 18 - 50 psi 17 - 50 psi 17 - 50 ps
200 HP 20 in BB BB 41 - 46 psi 45 - 50 psi 10 - 16 psi 10 - 15 psi 10 - 15 ps
200 HP 20 in PC PC 41 - 48 psi 45 - 52 psi 11 - 18 psi 11 - 17 psi 10 - 17 ps
200 HP 25 in PC PC 38 - 41 psi 42 - 45 psi 07 - 10 psi 07 - 10 psi 06 - 10 ps
200 HP 30 in PC PC 36 - 38 psi 40 - 42 psi 06 - 07 psi 05 - 07 psi 05 - 06 ps
200 HP 40 in PC PC 36 - 36 psi 40 - 40 psi 05 - 06 psi 05 - 05 psi 04 - 05 ps
250 HP 15 in BB BB 41 - 62 psi 44 - 67 psi 24 - 50 psi 24 - 27 psi 24 - 26 psi 23 - 26 ps
250 HP 15 in PC PC 45 - 67 psi 48 - 72 psi 28 - 50 psi 27 - 28 psi 27 - 27 psi 27 - 27 ps
250 HP 20 in BB BB 33 - 38 psi 37 - 41 psi 16 - 24 psi 16 - 24 psi 16 - 24 psi 15 - 23 ps
250 HP 20 in PC PC 34 - 40 psi 37 - 43 psi 17 - 28 psi 17 - 27 psi 16 - 27 psi 16 - 27 ps
250 HP 25 in PC PC 29 - 33 psi 32 - 37 psi 11 - 16 psi 11 - 16 psi 11 - 16 psi 10 - 15 ps
250 HP 30 in PC PC 27 - 29 psi 31 - 32 psi 09 - 11 psi 09 - 11 psi 09 - 11 psi 09 - 10 ps
250 HP 40 in PC PC 26 - 27 psi 29 - 31 psi 08 - 09 psi 08 - 09 psi 08 - 09 psi 08 - 09 ps
300 HP 15 in - 20 in BB BB 55 - 83 psi 57 - 85 psi 30 - 50 psi 30 - 36 psi 30 - 35 psi 30 - 35 ps
300 HP 15 in - 20 in PC PC 58 - 87 psi 60 - 90 psi 33 - 50 psi 33 - 37 psi 33 - 36 psi 33 - 36 ps
300 HP 20 in BB BB 46 - 55 psi 47 - 57 psi 21 - 30 psi 21 - 30 psi 20 - 30 psi 20 - 30 ps
300 HP 20 in PC PC 47 - 58 psi 48 - 60 psi 22 - 33 psi 22 - 33 psi 21 - 33 psi 21 - 33 ps
300 HP 30 in PC PC 39 - 46 psi 40 - 47 psi 13 - 21 psi 13 - 21 psi 12 - 20 psi 12 - 20 ps
300 HP 40 in PC PC 37 - 39 psi 39 - 40 psi 11 - 13 psi 11 - 13 psi 10 - 12 psi 10 - 12 ps
350 HP 15 in - 20 in BB BB 64 - 90 psi 62 - 90 psi 42 - 50 psi 42 - 50 psi 41 - 50 psi 41 - 50 ps
350 HP 15 in - 20 in PC PC 68 - 90 psi 66 - 90 psi 46 - 50 psi 46 - 50 psi 45 - 50 psi 45 - 50 ps
350 HP 20 in BB BB 54 - 64 psi 53 - 62 psi 32 - 42 psi 32 - 42 psi 32 - 41 psi 31 - 41 ps
350 HP 20 in PC PC 56 - 68 psi 54 - 66 psi 34 - 46 psi 34 - 46 psi 33 - 45 psi 33 - 45 ps
350 HP 25 in PC PC 43 - 54 psi 42 - 53 psi 21 - 32 psi 21 - 32 psi 20 - 32 psi 20 - 31 ps
350 HP 30 in PC PC 40 - 43 psi 38 - 42 psi 17 - 21 psi 17 - 21 psi 17 - 20 psi 16 - 20 ps
350 HP 40 in PC PC 37 - 40 psi 36 - 38 psi 15 - 17 psi 15 - 17 psi 14 - 17 psi 14 - 16 ps
400 HP 15 in - 20 in BB BB 69 - 90 psi 69 - 90 psi 46 - 50 psi 46 - 50 psi 45 - 50 psi 45 - 50 ps
400 HP 15 in - 20 in PC PC 74 - 90 psi 75 - 90 psi 51 - 87 psi 51 - 77 psi 51 - 77 psi 51 - 77 ps
400 HP 20 in BB BB 55 - 69 psi 56 - 69 psi 32 - 46 psi 32 - 46 psi 32 - 45 psi 32 - 45 ps
400 HP 20 in PC PC 57 - 74 psi 58 - 75 psi 34 - 50 psi 34 - 50 psi 34 - 50 psi 34 - 50 ps
400 HP 25 in PC PC 41 - 55 psi 42 - 56 psi 18 - 32 psi 18 - 32 psi 18 - 32 psi 18 - 32 ps
400 HP 30 in PC PC 37 - 41 psi 38 - 42 psi 13 - 18 psi 13 - 18 psi 13 - 18 psi 13 - 18 ps
400 HP 40 in PC PC 34 - 37 psi 35 - 38 psi 11 - 13 psi 10 - 13 psi 10 - 13 psi 10 - 13 ps
500 HP 20 in - 25 in BB PC 58 - 76 psi 58 - 76 psi 46 - 50 psi 46 - 50 psi 45 - 50 psi 45 - 50 ps
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Model CBLE 125-800 HP Boilers
31
BB = Butter Ball PC = Plug Cock
NOTE In cases where the gas train increases in size after the regulating valve two diameters are listed The first number is the customer connection size
500 HP 20 in - 25 in PC PC 60 - 83 psi 60 - 83 psi 48 - 50 psi 47 - 50 psi 47 - 50 psi 47 - 50 psi
500 HP 25 in PC PC 39 - 58 psi 39 - 58 psi 27 - 46 psi 27 - 46 psi 27 - 45 psi 26 - 45 psi
500 HP 30 in PC PC 33 - 39 psi 33 - 39 psi 20 - 27 psi 20 - 27 psi 20 - 27 psi 20 - 26 psi
500 HP 40 in PC PC 28 - 33 psi 28 - 33 psi 16 - 20 psi 16 - 20 psi 15 - 20 psi 15 - 20 psi
600 HP 20 in - 25 in BB PC 80 - 90 psi 80 - 90 psi 65 - 90 psi 65 - 90 psi 64 - 89 psi 63 - 88 psi
600 HP 20 in - 25 in PC PC 82 - 90 psi 82 - 90 psi 67 - 100 psi 67 - 100 psi 66 - 99 psi 66 - 99 psi
600 HP 25 in PC PC 54 - 80 psi 54 - 80 psi 39 - 50 psi 38 - 50 psi 38 - 50 psi 37 - 50 psi
600 HP 25 in - 30 in PC PC 52 - 54 psi 52 - 54 psi 37 - 39 psi 36 - 38 psi 35 - 38 psi 35 - 37 psi
600 HP 30 in PC PC 43 - 52 psi 43 - 52 psi 28 - 37 psi 27 - 36 psi 27 - 35 psi 26 - 35 psi
600 HP 40 in PC PC 37 - 43 psi 37 - 43 psi 22 - 28 psi 21 - 27 psi 20 - 27 psi 20 - 26 psi
700 HP 20 in - 30 in BB PC 110 - 150 psi 107 - 150 psi 87 - 131 psi 86 - 130 psi 86 - 129 psi 86 - 128 psi
700 HP 20 in - 30 in PC PC 113 - 150 psi 110 - 150 psi 90 - 135 psi 89 - 134 psi 89 - 134 psi 89 - 133 psi
700 HP 25 in - 30 in PC PC 71 - 90 psi 68 - 90 psi 48 - 50 psi 47 - 50 psi 47 - 50 psi 46 - 50 psi
700 HP 30 in PC PC 60 - 71 psi 57 - 68 psi 36 - 48 psi 36 - 47 psi 35 - 47 psi 35 - 46 psi
700 HP 40 in PC PC 51 - 60 psi 48 - 57 psi 28 - 36 psi 27 - 36 psi 27 - 35 psi 26 - 35 psi
800 HP 20 in - 30 in BB PC 108 - 150 psi 107 - 150 psi 106 - 150 psi
800 HP 20 in - 30 in PC PC 112 - 150 psi 111 - 150 psi 110 - 150 psi800 HP 25 in - 30 in PC PC 61 - 90 psi 60 - 100 psi 59 - 100 psi
800 HP 30 in PC PC 48 - 61 psi 47 - 50 psi 46 - 50 psi
800 HP 40 in PC PC 35 - 48 psi 34 - 47 psi 34 - 46 psi
Standard Gas Train size is highlighted
Table A1-21 Standard Undersize and Oversize Gas Trains (Continued)
CBLE
BOILER HP GAS TRAINSIZE
UPSTREAMVALVE
DOWNSTREAMVALVE
EMISSIONS LEVEL 09 ppm 15 ppm 20 ppm 30 ppm 60 ppm UC
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Model CBLE 125-800 HP Boilers
32
ALTITUDE(FT)
CORRECTIONFACTOR
ALTITUDE(FT)
CORRECTIONFACTOR
1000 104 6000 1252000 107 7000 130
3000 111 8000 135
4000 116 9000 140
5000 121 - -
To obtain minimum required gas pressure at altitudesabove 700 feet multiply the pressure by the listed factorsInches WC x 0577 = ozsq-inOzsq-in x 1732 = Inches WCInches WC x 00361= psigOzsq-in x 00625 = psigPsig x 2771 = Inches WCPsig x 160 = Ozsq-in
Table A1-22 Minimum Required Regulated Gas Pressure
Altitude Conversion
BOILERHP
TYPE OF GAS AND HEAT CONTENT
NATURAL GAS1000 (Btucu-ft)
PROPANE GAS2550 (Btucu-ft)
125 5103 2000
150 6124 2402
200 8165 3202
250 10206 4002
300 12247 4802
350 14280 5600
400 16329 6404
500 20415 8006
600 24494 9605
700 28576 11206
800 32659 12807
Table A1-23 Maximum Gas Consumption (CFH)
for Natural Gas and Propane Vapor
BOILER
HP
MODEL CB
CONNECTION SIZE
(IN NPT)
LOCATIONDIMENSION
ldquoArdquo (IN)
125-200 1-12 52
250-350 2 56
400 2 58
500 2-12 60
600 2-12 - 3 71
700-800 3 65
Figure A1-13 Standard Gas Train Connection Size and Location
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Model CBLE 125-800 HP Boilers
33
Oil-Fired Burners Fuel oil consumption information is shown on the boiler rating sheets in theDimensions and Rating Section
Figure A1-16 shows the oil connection sizes and locations for Model CB Boilersfiring No 2 oil
Figure A1-17 through Figure A1-18 show typical oil systems and layouts
Figure A1-19 and Figure A1-20 show the detail of an oil transfer tank (day tank)typically utilized to provide a storage reservoir between the oil system supply pumpand the boiler oil pump
General BoilerInformation
Table A1-24 shows blowdown tank sizing information
Table A1-25 provides heating surface information
Table A1-26 provides steam volume and disengaging area information
Table A1-27 provides recommended steam nozzle sizes
Table A1-28 provides recommended non-return valve sizes
Boiler RoomInformation
Figure A1-21 shows typical boiler room length requirements
Figure A1-22 shows typical boiler room width requirements
Figure A1-23 shows typical breeching arrangements
Stack SupportCapabilities
All standard Cleaver-Brooks Firetube Boilers with an LE option can support up to2000 lbs without additional support
LE Boilers 250 hp through 800 hp can be reinforced to support 3000 lbs
StackBreechingSize Criteria
The design of the stack and breeching must provide the required draft at each boilerflue gas outlet Proper draft is critical to burner performance
Although constant pressure at the flue gas outlet of the Model CB-LE is not requiredit is necessary to size the stackbreeching to limit flue gas pressure variation Theallowable pressure range is ndash025 WC to +025 WC
For additional information please review Section I4 General Engineering Data(Stacks) and Section F Stacks Stack and breeching sizes should always be providedby a reputable stack supplier who will design the stack and breeching system basedon the above criteria Your local Cleaver-Brooks authorized representative is capableof assisting in your evaluation of the stackbreeching design
Boiler RoomCombustion Air
When determining boiler room air requirements the size of the room air flow andvelocity of air must be reviewed as follows
1 Size (area) and location of air supply openings in boiler room
A Two (2) permanent air supply openings in the outer walls of the boiler room
are recommended Locate (1) at each end of the boiler room preferablybelow a height of 7 feet This allows air to sweep the length of the boiler
B Air supply openings can be louvered for weather protection but they shouldnot be covered with fine mesh wire as this type of covering has poor air flowqualities and is subject to clogging by dust or dirt
C A vent fan in the boiler room is not recommended as it could create a slightvacuum under certain conditions and cause variations in the quantity ofcombustion air This can result in unsatisfactory burner performance
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
34
D Under no condition should the total area of the air supply openings be lessthan (1) square foot
E Size the openings by using the formulaArea (sq-ft) = CFMFPM
2 Amount of air required (cfm)
A Combustion Air = Rated bhp x 8 cfmbhp
B Ventilation Air = Maximum bhp x 2 cfmbhp
C Total recommended air = 10 cfmbhp - up to 1000 feet elevation Add 3percent more per 1000 feet of added elevation
3 Acceptable air velocity in Boiler Room (fpm)
A From floor to (7) foot height - 250 fpm
B Above (7) foot height - 500 fpm
Example Determine the area of the boiler room air supply openings for (1) 300 hpboiler at 800 feet altitude The air openings are to be 5 feet above floor level
bull Air required 300 x 10 = 3000 cfm (from 2B above)
bull Air velocity Up to 7 feet = 250 fpm (from 3 above)
bull Area Required Area = cfm = 3000250 = 12 sq-ft total
bull AreaOpening 122 = 6 sq-ftopening (2 required)
Notice
Consult local codes which may supersede these requirements
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Model CBLE 125-800 HP Boilers
35
This figure illustrates the basic gas valve arrangement on Cleaver-BrooksModel CB boiler and shows the contractors connection point The valves andcontrols between the contractor connection point and the gas main in thestreet are representative of a typical installation Actual requirements mayvary depending on local codes or local gas company requirements which
should be investigated prior to preparation of specifications and prior to con-struction
A Utilities service valveB Utilities service regulatorC Gas meterD Piping from meter to boiler
The size of the gas line from the meter to the gas pressure regulator at theboiler can be very important if gas pressures are marginal The gas line sizingis dependent on
1 Gas pressure at outlet of gas meter (C)2 Rate of gas flow required CFH3 Length of pipe run (D)4 Pressure required at contractor connection point
The local gas utility will advise the pressure that is available at the outlet oftheir meter
Figure A1-14 Typical Gas Piping Layout
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Model CBLE 125-800 HP Boilers
36
5
6
S
1
3
42
PILOT GAS LINE
S
S
MAIN GAS LINE
M M
ToBurner
GasSupply
11
10
97
12138
14 15
FLOW
FLOW
Figure A1-15 Model CB-LE Gas Train Components
BOILER
HP
MODEL CB
SUPPLYANDRE-
TURNCONN SIZES
(IN)(NPT)
A(IN)
RECOMMENDED OIL LINEA
SIZES(STANDARD PIPE)
(IN - IPS)
STOR-AGE
TANK TOBOILER
OR PUMPCONNECT
PUMPTO
BOILER
RE-TURN
LINE TOTANK
125150 200
34 12-12 1 1 1
250300350
34 34 1 1 1
400500600
34 11-34 1 1 1
700800
1 11-34 1 1 1
NOTE See No 2 Oil Line Sizing Instruction for systems with other conditions A For suction line condition with a maximum of 10 Feet of lift and a
total of 100 feet of suction line
Figure A1-16 No2 Oil Connection Size Location and Recommended Line Sizes
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Model CBLE 125-800 HP Boilers
37
Figure A1-17 No 2 Oil Piping Single Boiler
Installation Remote Oil Pump
Figure A1-18 No 2 Oil Piping Multiple Boiler
Installation Remote Oil Pumps
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Model CBLE 125-800 HP Boilers
38
Figure A1-19 No 2 Oil Piping Multiple Boiler
Installation
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Model CBLE 125-800 HP Boilers
39
Figure A1-20 No 2 Oil Piping Typical Arrangement
Table A1-24 Model CB-LE Blowdown
Tank Sizing
BOILER HP WATER (GAL)
125 97
150 118
200 145
250 146
300 176
350 210
400 177
500 209
600 250
700 800 296
NOTE Quantity of water removed from boiler by lowering normal water line 4
BOILER
HP
HEATING SURFACE (SQ-FT)
FIRESIDE WATERSIDE
125 625 679
150 750 820
200 1000 1092
250 1250 1346
300 1500 1623
350 1750 1932
400 2000 2151
500 2500 2691
600 3000 3262
700 800 3500 3810
Table A1-25 Heating Surface Model CB-LE
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Model CBLE 125-800 HP Boilers
40
BOILER HPSTEAM VOLUME CU-FT
STEAM DISENGAGING AREASQ-IN
HIGH PRESSUREA LOW PRESSUREB HIGH PRESSUREA LOW PRESSUREB
125 254 366 5371 5887
150 307 443 6511 7138
200 377 544 7985 8752
250 492 706 7980 8695
300 595 853 9651 10516
350 709 1017 11507 12538
400 721 979 9793 10593
500 837 1137 11376 12303
600 1015 1378 13787 14911
700-800 1198 1627 16273 17600
NOTE Based on normal water levelA Based on 150 psig design pressureB Based on 15 psig design pressure
Table A1-26 Steam Volume and Disengaging Area
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Model CBLE 125-800 HP Boilers
41
BOILERHP
BOILERCAPACITY(LBSHR)
OPERATING PRESSURES (PSIG)
50 75 100 125 150 175 200 250
100 3450
2-12 2-12 NA NA NA NA NA NA
125 4313 3 2-12 2-12 2-12 NA NA NA NA
150 5175 3 3 2-12 2-12 2-12 2-12 NA NA
200 6900 3 3 3 3 3 2-12 2-12 2-12
250 8625 4 3 3 3 3 3 3 3
300 10350 4 4 4 3 3 3 3 3
350 12025 4 4 4 4 4 3 3 3
400 13800 5 4 4 4 4 4 4 3
500 17210 6 5 5 4 4 4 4 4
600 20700 6 6 5 5 5 4 4 4
700 24150 6 6 6 5 5 5 5 4
800 27600 6 6 6 6 6 5 5 5
NOTE Valve sizes (300 Flanges) given in inchesStandard Non-Return valve selections limited to a maximum 2 to 1 turndown(50 of full load) selections based on typical non-return valve sizing recommen-dations For final valve selection contact your C-B authorized representative Forhigh turndown applications see Boiler Book Section I3 Table I3-3 Indicates pressure drop of less than 75 psig All other selections are less than6 psig pressure drop
Boiler HP
OPERATINGPRESSURE
PSIG125 150 200 250 300 350 400 500 600 700 800
15 8 8 10 10 12 12 12 12 12 12 12
30 6 6 8 8 8 10 10 10 12 12 12
40 6 6 6 8 8 8 10 10 10 12 12
50 6 6 6 6 8 8 8 10 10 10 12
75 4 4 6 6 6 8 8 8 8 10 10
100 4 4 6 6 6 6 6 8 8 8 10
125 4 4 4 6 6 6 6 8 8 8 8
150 3 3 4 4 6 6 6 6 6 8 8
200 25 3 4 4 4 4 6 6 6 6 6
250 25 3 3 4 4 4 4 6 6 6 6
NOTES1 Steam nozzle sizes given in inches2 Recommended steam nozzle sizes based on 4000 to 5000 fpm steam velocity3 All standard steam nozzle sizes for 150 psig design pressure or greater are the sameas 125 psig operating pressure on the above table To increase or decrease the standardsize request the change with your local Cleaver-Brooks authorized representative4 Shaded area denotes special surge load baffles must be installed to avoid possible wa-ter carry-over5 For incremental operating pressures see Table I3-1 Steam Systems Fundamentals
Table A1-28 Recommended Steam Nozzle Size (for
4000 to 5000 fpm nozzle velocity)
Table A1-29 Recommended Non-Return Valve Size
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42
1 Shortest boiler room length (Dwg A) is obtained by allowing for possible future tube replacement (from front or rearof boiler) through a window or doorway Allowance is only made for minimum door swing at each end of the boilerThis arrangement provides sufficient aisle space at the front of the boiler but a ldquotightrdquo space condition at the rear
If space permits approximately 15 additional feet should be allowed at the rear for additional aisle and workingspace
2 Next shortest boiler room length (Dwg B) is obtained by allowing for possible future tube replacement from thefront of the boiler Allowance is only made for minimum door swing at the rear
If space permits approximately 15 additional feet should be allowed at the rear for additional aisle and workingspace
3 A slightly longer boiler room (Dwg C) is obtained by allowing for possible future tube replacement from the rear ofthe boiler Allowance for door swing at the front provides sufficient aisle and working space at the front
Figure A1-21 Boiler Room Length (Typical Layouts)
BOILER HP 125-200 250-350 400-800
Dimension A 82 93 102
Dimension B 115 141 171
NOTES1 Recommended Minimum Distance Between Boiler and Wall Dimen-
sion ldquoArdquo allows for a ldquoclearrdquo 42 aisle between the water col-umn on the boiler and the wall If space permits this aisle
should be widened 2 Recommended Minimum Distance Between BoilersDimension ldquoBrdquo between boilers allows for a ldquoclearrdquo aisle of42 - 125 -200 hp48 - 250-350 hp60 - 400-800 hpIf space permits this aisle should be widened
Figure A1-22 Boiler Room Width (Typical Layout)
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Model CBLE 125-800 HP Boilers
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Model CBLE 125-800 HP Boilers
27
Table A1-18 CB-LE Boilers - Natural Gas Emission Levels
POLLUTANT
ESTIMATED LEVEL
60 ppm 30 ppm 25 ppm 20 ppm 15 ppm 9 ppm
CO ppmA
lbMMBtu
50150B
004011
50150B
004011
50150B
004011
50150B
004011
50
004
50
004
NOx ppmA
lbMMBtu
60
007
30
0035
25
003
20
0024
15
0018
9
0011
SOx ppmA
lbMMBtu
1
0001
1
0001
1
0001
1
0001
1
0001
1
0001
HCVOC5 ppmA
lbMMBtu
10
0004
10
0004
10
0004
10
0004
10
0004
10
0004
PM ppmA
lbMMBtu
-
001
-
001
-
001
-
001
-
001
-
001
A ppm levels are given on a dry volume basis and corrected to 3 oxygen (15 excess air)
B CO emission for 60 30 25 amp 20 ppm system is 50 ppm (004 lbMMBtu) when boiler is operating above 50 of rated capacity
CO emission is 150 ppm (011 lbMMBtu) when boiler is operating below 50 of rated capacity
Table A1-17 Predicted Fuel-to-Steam Efficiencies - No 2 Oil
BOILER
HP
OPERATING PRESSURE = 10 psig OPERATING PRESSURE = 125 psig
OF LOAD OF LOAD
25 50 75 100 25 50 75 100
125 867 869 867 866 837 842 843 843
150 878 880 878 876 848 853 853 854
200 884 887 884 882 856 860 860 860
250 883 881 874 867 853 853 849 847
300 886 887 880 873 859 860 855 852
350 886 890 885 878 859 866 861 858
400 879 881 879 876 851 855 856 855
500 889 890 889 886 861 865 866 864
600 890 894 892 890 862 868 869 868
700 891 895 893 891 863 869 870 869
800 892 895 893 890 864 869 870 868
Table A1-19 CB-LE Boilers - No 2 Oil Emission Levels
POLLUTANTESTIMATED LEVEL
60 ppm LE Option 30 25 20 ppm LE Option 15 ppm 9 ppm
CO ppmA
lbMMBtu
50
0039
50
0039
50
0039
50
0039
NOx ppmA
lbMMBtu140
018690
012085
011370
0093
SOx ppmA
lbMMBtu
278
052
278
052
278
052
278
052
HCVOCs ppmA
lbMMBtu
4
0002
4
0002
4
0002
4
0002
PM ppmA
lbMMBtu
-
0025
-
0025
-
0025
-
0025
A ppm levels are given on a dry volume basis and corrected to 3 oxygen (15 excess air)
BASED ON THE FOLLOWING CONSTITUENT LEVELS
Fuel-bound Nitrogen content = 0015 by weight
Sulfur content = 05 by weight
Ash content = 001 by weight
09-09
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Model CBLE 125-800 HP Boilers
28
ENGINEERING DATA
Sound Level Table A1-20 gives a summary of predicted sound pressure levels for Model CBboilers with 30 ppm LE Options Contact your local Cleaver-Brooks authorizedrepresentative for sound levels or other LE Options
Units - The units for the sound level tables are dbA (decibels measured on the A-weighted scale) in reference to 00002 microbars (20 micro-Newtons per square
meter) Their reference are standardly used in specifying and reporting soundpressure levels on industrial equipment
Test Method - The sound pressure levels in the above tables were obtained fromtests in accordance with the ldquoABMA Test Code for the Measurement of Sound fromPackaged Boilersrdquo In accordance with this code the sound pressure levels reportedwere measured on the boiler centerline 4-12 feet vertically above the bottom of thebase rails and 3 feet horizontally in front of the end of the blower motor or frontsurface of the electrical cabinet
Sound Level Meter - The sound level meter used complies with ANSI S14 Type 1(Precision) The readings are taken with the meter set for slow response andcorrected for background levels
Sound Pressure - The large size boilers the need for auxiliary equipment and thenecessary interconnecting piping make it impractical (and sometimes impossible) toprovide a boiler testing environment which is suitable for taking the data needed todevelop Sound Pressure Power levels
Typical Values - Sound pressure levels (dbA) for the same boiler will vary betweenboiler rooms Sound levels will vary with motor type NOx levels and altitudes Inaddition variations will occur between different people using different sound meterson the same boiler And finally no two boilers can be expected to give precisely thesame sound levels For these reasons we can only predict but not guarantee soundlevels (dbA)
BOILER HP 125 150 200 250 300 350 400 500 600 700 800
HFO dbA 84 84 84 83 84 85 84 85 85 88 90
LFO dbA 82 82 83 81 82 83 82 83 83 84 89
HFG dbA 82 82 83 82 83 84 83 83 85 87 90
LFG dbA 81 81 82 81 82 83 81 81 82 84 88
NOTES1 Sound pressure levels measured on boilers operating in various locations and ex-
pressed in dbA are as shown2 Based on standard altitude fans and fan motors 60 Hz3 Contact your local Cleaver-Brooks authorized representative for sound levels of 60 25or 20 ppm LE Options
ABBREVIATIONS
HF = High Fire LF = Low Fire O = Oil G = Gas
Table A1-20 Model CBLE Predicted Sound Levels 30 ppm NOx Systemss
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Model CBLE 125-800 HP Boilers
29
Gas-Fired Burners Table A1-21 shows gas pressure with standard over- and undersized gas trains
Table A1-22 shows minimum required gas pressure altitude conversion
Figure A1-13 shows standard gas train sizes and locations for Model CB FiretubeBoilers
Figure A1-14 shows typical gas train piping layouts for multiple boiler applications
Figure A1-15 shows standard gas train components
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Model CBLE 125-800 HP Boilers
30
Table A1-21 Standard Undersize and Oversize Gas Trains
CBLE
BOILER HP GAS TRAINSIZE
UPSTREAMVALVE
DOWNSTREAMVALVE
EMISSIONS LEVEL 09 ppm 15 ppm 20 ppm 30 ppm 60 ppm UC
125 HP 15 in BB BB 33 - 49 psi 33 - 49 psi 08 - 50 psi 07 - 50 psi 07 - 50 psi 07 - 50 ps
125 HP 15 in PC PC 34 - 50 psi 34 - 50 psi 09 - 50 psi 08 - 50 psi 08 - 50 psi 08 - 50 ps
125 HP 20 in BB BB 31 - 33 psi 31 - 33 psi 06 - 08 psi 06 - 07 psi 05 - 07 psi 05 - 07 ps
125 HP 20 in PC PC 31 - 34 psi 31 - 34 psi 06 - 09 psi 06 - 08 psi 06 - 08 psi 05 - 08 ps
125 HP 25 in PC PC 30 - 31 psi 30 - 31 psi 04 - 06 psi 04 - 06 psi 04 - 05 psi 04 - 05 ps
125 HP 30 in PC PC 29 - 30 psi 29 - 30 psi 04 - 04 psi 04 - 04 psi 04 - 04 psi 03 - 04 ps
125 HP 40 in PC PC 29 - 29 psi 29 - 29 psi 04 - 04 psi 03 - 04 psi 03 - 04 psi 03 - 03 ps
150 HP 15 in BB BB 37 - 55 psi 39 - 58 psi 10 - 47 psi 09 - 50 psi 09 - 50 psi 09 - 50 ps
150 HP 15 in PC PC 38 - 57 psi 40 - 60 psi 11 - 42 psi 11 - 50 psi 10 - 50 psi 10 - 50 ps
150 HP 20 in BB BB 34 - 37 psi 36 - 39 psi 07 - 10 psi 06 - 09 psi 06 - 09 psi 06 - 09 ps
150 HP 20 in PC PC 34 - 38 psi 36 - 40 psi 07 - 11 psi 07 - 11 psi 07 - 10 psi 06 - 10 ps
150 HP 25 in PC PC 32 - 34 psi 34 - 36 psi 05 - 07 psi 04 - 06 psi 04 - 06 psi 04 - 06 ps
150 HP 30 in PC PC 32 - 32 psi 34 - 34 psi 04 - 05 psi 04 - 04 psi 04 - 04 psi 03 - 04 ps
150 HP 40 in PC PC 31 - 32 psi 33 - 34 psi 04 - 04 psi 03 - 04 psi 03 - 04 psi 03 - 03 ps
200 HP 15 in BB BB 46 - 69 psi 50 - 75 psi 16 - 50 psi 15 - 50 psi 15 - 50 ps
200 HP 15 in PC PC 48 - 72 psi 52 - 78 psi 18 - 50 psi 17 - 50 psi 17 - 50 ps
200 HP 20 in BB BB 41 - 46 psi 45 - 50 psi 10 - 16 psi 10 - 15 psi 10 - 15 ps
200 HP 20 in PC PC 41 - 48 psi 45 - 52 psi 11 - 18 psi 11 - 17 psi 10 - 17 ps
200 HP 25 in PC PC 38 - 41 psi 42 - 45 psi 07 - 10 psi 07 - 10 psi 06 - 10 ps
200 HP 30 in PC PC 36 - 38 psi 40 - 42 psi 06 - 07 psi 05 - 07 psi 05 - 06 ps
200 HP 40 in PC PC 36 - 36 psi 40 - 40 psi 05 - 06 psi 05 - 05 psi 04 - 05 ps
250 HP 15 in BB BB 41 - 62 psi 44 - 67 psi 24 - 50 psi 24 - 27 psi 24 - 26 psi 23 - 26 ps
250 HP 15 in PC PC 45 - 67 psi 48 - 72 psi 28 - 50 psi 27 - 28 psi 27 - 27 psi 27 - 27 ps
250 HP 20 in BB BB 33 - 38 psi 37 - 41 psi 16 - 24 psi 16 - 24 psi 16 - 24 psi 15 - 23 ps
250 HP 20 in PC PC 34 - 40 psi 37 - 43 psi 17 - 28 psi 17 - 27 psi 16 - 27 psi 16 - 27 ps
250 HP 25 in PC PC 29 - 33 psi 32 - 37 psi 11 - 16 psi 11 - 16 psi 11 - 16 psi 10 - 15 ps
250 HP 30 in PC PC 27 - 29 psi 31 - 32 psi 09 - 11 psi 09 - 11 psi 09 - 11 psi 09 - 10 ps
250 HP 40 in PC PC 26 - 27 psi 29 - 31 psi 08 - 09 psi 08 - 09 psi 08 - 09 psi 08 - 09 ps
300 HP 15 in - 20 in BB BB 55 - 83 psi 57 - 85 psi 30 - 50 psi 30 - 36 psi 30 - 35 psi 30 - 35 ps
300 HP 15 in - 20 in PC PC 58 - 87 psi 60 - 90 psi 33 - 50 psi 33 - 37 psi 33 - 36 psi 33 - 36 ps
300 HP 20 in BB BB 46 - 55 psi 47 - 57 psi 21 - 30 psi 21 - 30 psi 20 - 30 psi 20 - 30 ps
300 HP 20 in PC PC 47 - 58 psi 48 - 60 psi 22 - 33 psi 22 - 33 psi 21 - 33 psi 21 - 33 ps
300 HP 30 in PC PC 39 - 46 psi 40 - 47 psi 13 - 21 psi 13 - 21 psi 12 - 20 psi 12 - 20 ps
300 HP 40 in PC PC 37 - 39 psi 39 - 40 psi 11 - 13 psi 11 - 13 psi 10 - 12 psi 10 - 12 ps
350 HP 15 in - 20 in BB BB 64 - 90 psi 62 - 90 psi 42 - 50 psi 42 - 50 psi 41 - 50 psi 41 - 50 ps
350 HP 15 in - 20 in PC PC 68 - 90 psi 66 - 90 psi 46 - 50 psi 46 - 50 psi 45 - 50 psi 45 - 50 ps
350 HP 20 in BB BB 54 - 64 psi 53 - 62 psi 32 - 42 psi 32 - 42 psi 32 - 41 psi 31 - 41 ps
350 HP 20 in PC PC 56 - 68 psi 54 - 66 psi 34 - 46 psi 34 - 46 psi 33 - 45 psi 33 - 45 ps
350 HP 25 in PC PC 43 - 54 psi 42 - 53 psi 21 - 32 psi 21 - 32 psi 20 - 32 psi 20 - 31 ps
350 HP 30 in PC PC 40 - 43 psi 38 - 42 psi 17 - 21 psi 17 - 21 psi 17 - 20 psi 16 - 20 ps
350 HP 40 in PC PC 37 - 40 psi 36 - 38 psi 15 - 17 psi 15 - 17 psi 14 - 17 psi 14 - 16 ps
400 HP 15 in - 20 in BB BB 69 - 90 psi 69 - 90 psi 46 - 50 psi 46 - 50 psi 45 - 50 psi 45 - 50 ps
400 HP 15 in - 20 in PC PC 74 - 90 psi 75 - 90 psi 51 - 87 psi 51 - 77 psi 51 - 77 psi 51 - 77 ps
400 HP 20 in BB BB 55 - 69 psi 56 - 69 psi 32 - 46 psi 32 - 46 psi 32 - 45 psi 32 - 45 ps
400 HP 20 in PC PC 57 - 74 psi 58 - 75 psi 34 - 50 psi 34 - 50 psi 34 - 50 psi 34 - 50 ps
400 HP 25 in PC PC 41 - 55 psi 42 - 56 psi 18 - 32 psi 18 - 32 psi 18 - 32 psi 18 - 32 ps
400 HP 30 in PC PC 37 - 41 psi 38 - 42 psi 13 - 18 psi 13 - 18 psi 13 - 18 psi 13 - 18 ps
400 HP 40 in PC PC 34 - 37 psi 35 - 38 psi 11 - 13 psi 10 - 13 psi 10 - 13 psi 10 - 13 ps
500 HP 20 in - 25 in BB PC 58 - 76 psi 58 - 76 psi 46 - 50 psi 46 - 50 psi 45 - 50 psi 45 - 50 ps
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Model CBLE 125-800 HP Boilers
31
BB = Butter Ball PC = Plug Cock
NOTE In cases where the gas train increases in size after the regulating valve two diameters are listed The first number is the customer connection size
500 HP 20 in - 25 in PC PC 60 - 83 psi 60 - 83 psi 48 - 50 psi 47 - 50 psi 47 - 50 psi 47 - 50 psi
500 HP 25 in PC PC 39 - 58 psi 39 - 58 psi 27 - 46 psi 27 - 46 psi 27 - 45 psi 26 - 45 psi
500 HP 30 in PC PC 33 - 39 psi 33 - 39 psi 20 - 27 psi 20 - 27 psi 20 - 27 psi 20 - 26 psi
500 HP 40 in PC PC 28 - 33 psi 28 - 33 psi 16 - 20 psi 16 - 20 psi 15 - 20 psi 15 - 20 psi
600 HP 20 in - 25 in BB PC 80 - 90 psi 80 - 90 psi 65 - 90 psi 65 - 90 psi 64 - 89 psi 63 - 88 psi
600 HP 20 in - 25 in PC PC 82 - 90 psi 82 - 90 psi 67 - 100 psi 67 - 100 psi 66 - 99 psi 66 - 99 psi
600 HP 25 in PC PC 54 - 80 psi 54 - 80 psi 39 - 50 psi 38 - 50 psi 38 - 50 psi 37 - 50 psi
600 HP 25 in - 30 in PC PC 52 - 54 psi 52 - 54 psi 37 - 39 psi 36 - 38 psi 35 - 38 psi 35 - 37 psi
600 HP 30 in PC PC 43 - 52 psi 43 - 52 psi 28 - 37 psi 27 - 36 psi 27 - 35 psi 26 - 35 psi
600 HP 40 in PC PC 37 - 43 psi 37 - 43 psi 22 - 28 psi 21 - 27 psi 20 - 27 psi 20 - 26 psi
700 HP 20 in - 30 in BB PC 110 - 150 psi 107 - 150 psi 87 - 131 psi 86 - 130 psi 86 - 129 psi 86 - 128 psi
700 HP 20 in - 30 in PC PC 113 - 150 psi 110 - 150 psi 90 - 135 psi 89 - 134 psi 89 - 134 psi 89 - 133 psi
700 HP 25 in - 30 in PC PC 71 - 90 psi 68 - 90 psi 48 - 50 psi 47 - 50 psi 47 - 50 psi 46 - 50 psi
700 HP 30 in PC PC 60 - 71 psi 57 - 68 psi 36 - 48 psi 36 - 47 psi 35 - 47 psi 35 - 46 psi
700 HP 40 in PC PC 51 - 60 psi 48 - 57 psi 28 - 36 psi 27 - 36 psi 27 - 35 psi 26 - 35 psi
800 HP 20 in - 30 in BB PC 108 - 150 psi 107 - 150 psi 106 - 150 psi
800 HP 20 in - 30 in PC PC 112 - 150 psi 111 - 150 psi 110 - 150 psi800 HP 25 in - 30 in PC PC 61 - 90 psi 60 - 100 psi 59 - 100 psi
800 HP 30 in PC PC 48 - 61 psi 47 - 50 psi 46 - 50 psi
800 HP 40 in PC PC 35 - 48 psi 34 - 47 psi 34 - 46 psi
Standard Gas Train size is highlighted
Table A1-21 Standard Undersize and Oversize Gas Trains (Continued)
CBLE
BOILER HP GAS TRAINSIZE
UPSTREAMVALVE
DOWNSTREAMVALVE
EMISSIONS LEVEL 09 ppm 15 ppm 20 ppm 30 ppm 60 ppm UC
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Model CBLE 125-800 HP Boilers
32
ALTITUDE(FT)
CORRECTIONFACTOR
ALTITUDE(FT)
CORRECTIONFACTOR
1000 104 6000 1252000 107 7000 130
3000 111 8000 135
4000 116 9000 140
5000 121 - -
To obtain minimum required gas pressure at altitudesabove 700 feet multiply the pressure by the listed factorsInches WC x 0577 = ozsq-inOzsq-in x 1732 = Inches WCInches WC x 00361= psigOzsq-in x 00625 = psigPsig x 2771 = Inches WCPsig x 160 = Ozsq-in
Table A1-22 Minimum Required Regulated Gas Pressure
Altitude Conversion
BOILERHP
TYPE OF GAS AND HEAT CONTENT
NATURAL GAS1000 (Btucu-ft)
PROPANE GAS2550 (Btucu-ft)
125 5103 2000
150 6124 2402
200 8165 3202
250 10206 4002
300 12247 4802
350 14280 5600
400 16329 6404
500 20415 8006
600 24494 9605
700 28576 11206
800 32659 12807
Table A1-23 Maximum Gas Consumption (CFH)
for Natural Gas and Propane Vapor
BOILER
HP
MODEL CB
CONNECTION SIZE
(IN NPT)
LOCATIONDIMENSION
ldquoArdquo (IN)
125-200 1-12 52
250-350 2 56
400 2 58
500 2-12 60
600 2-12 - 3 71
700-800 3 65
Figure A1-13 Standard Gas Train Connection Size and Location
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Model CBLE 125-800 HP Boilers
33
Oil-Fired Burners Fuel oil consumption information is shown on the boiler rating sheets in theDimensions and Rating Section
Figure A1-16 shows the oil connection sizes and locations for Model CB Boilersfiring No 2 oil
Figure A1-17 through Figure A1-18 show typical oil systems and layouts
Figure A1-19 and Figure A1-20 show the detail of an oil transfer tank (day tank)typically utilized to provide a storage reservoir between the oil system supply pumpand the boiler oil pump
General BoilerInformation
Table A1-24 shows blowdown tank sizing information
Table A1-25 provides heating surface information
Table A1-26 provides steam volume and disengaging area information
Table A1-27 provides recommended steam nozzle sizes
Table A1-28 provides recommended non-return valve sizes
Boiler RoomInformation
Figure A1-21 shows typical boiler room length requirements
Figure A1-22 shows typical boiler room width requirements
Figure A1-23 shows typical breeching arrangements
Stack SupportCapabilities
All standard Cleaver-Brooks Firetube Boilers with an LE option can support up to2000 lbs without additional support
LE Boilers 250 hp through 800 hp can be reinforced to support 3000 lbs
StackBreechingSize Criteria
The design of the stack and breeching must provide the required draft at each boilerflue gas outlet Proper draft is critical to burner performance
Although constant pressure at the flue gas outlet of the Model CB-LE is not requiredit is necessary to size the stackbreeching to limit flue gas pressure variation Theallowable pressure range is ndash025 WC to +025 WC
For additional information please review Section I4 General Engineering Data(Stacks) and Section F Stacks Stack and breeching sizes should always be providedby a reputable stack supplier who will design the stack and breeching system basedon the above criteria Your local Cleaver-Brooks authorized representative is capableof assisting in your evaluation of the stackbreeching design
Boiler RoomCombustion Air
When determining boiler room air requirements the size of the room air flow andvelocity of air must be reviewed as follows
1 Size (area) and location of air supply openings in boiler room
A Two (2) permanent air supply openings in the outer walls of the boiler room
are recommended Locate (1) at each end of the boiler room preferablybelow a height of 7 feet This allows air to sweep the length of the boiler
B Air supply openings can be louvered for weather protection but they shouldnot be covered with fine mesh wire as this type of covering has poor air flowqualities and is subject to clogging by dust or dirt
C A vent fan in the boiler room is not recommended as it could create a slightvacuum under certain conditions and cause variations in the quantity ofcombustion air This can result in unsatisfactory burner performance
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
34
D Under no condition should the total area of the air supply openings be lessthan (1) square foot
E Size the openings by using the formulaArea (sq-ft) = CFMFPM
2 Amount of air required (cfm)
A Combustion Air = Rated bhp x 8 cfmbhp
B Ventilation Air = Maximum bhp x 2 cfmbhp
C Total recommended air = 10 cfmbhp - up to 1000 feet elevation Add 3percent more per 1000 feet of added elevation
3 Acceptable air velocity in Boiler Room (fpm)
A From floor to (7) foot height - 250 fpm
B Above (7) foot height - 500 fpm
Example Determine the area of the boiler room air supply openings for (1) 300 hpboiler at 800 feet altitude The air openings are to be 5 feet above floor level
bull Air required 300 x 10 = 3000 cfm (from 2B above)
bull Air velocity Up to 7 feet = 250 fpm (from 3 above)
bull Area Required Area = cfm = 3000250 = 12 sq-ft total
bull AreaOpening 122 = 6 sq-ftopening (2 required)
Notice
Consult local codes which may supersede these requirements
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Model CBLE 125-800 HP Boilers
35
This figure illustrates the basic gas valve arrangement on Cleaver-BrooksModel CB boiler and shows the contractors connection point The valves andcontrols between the contractor connection point and the gas main in thestreet are representative of a typical installation Actual requirements mayvary depending on local codes or local gas company requirements which
should be investigated prior to preparation of specifications and prior to con-struction
A Utilities service valveB Utilities service regulatorC Gas meterD Piping from meter to boiler
The size of the gas line from the meter to the gas pressure regulator at theboiler can be very important if gas pressures are marginal The gas line sizingis dependent on
1 Gas pressure at outlet of gas meter (C)2 Rate of gas flow required CFH3 Length of pipe run (D)4 Pressure required at contractor connection point
The local gas utility will advise the pressure that is available at the outlet oftheir meter
Figure A1-14 Typical Gas Piping Layout
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Model CBLE 125-800 HP Boilers
36
5
6
S
1
3
42
PILOT GAS LINE
S
S
MAIN GAS LINE
M M
ToBurner
GasSupply
11
10
97
12138
14 15
FLOW
FLOW
Figure A1-15 Model CB-LE Gas Train Components
BOILER
HP
MODEL CB
SUPPLYANDRE-
TURNCONN SIZES
(IN)(NPT)
A(IN)
RECOMMENDED OIL LINEA
SIZES(STANDARD PIPE)
(IN - IPS)
STOR-AGE
TANK TOBOILER
OR PUMPCONNECT
PUMPTO
BOILER
RE-TURN
LINE TOTANK
125150 200
34 12-12 1 1 1
250300350
34 34 1 1 1
400500600
34 11-34 1 1 1
700800
1 11-34 1 1 1
NOTE See No 2 Oil Line Sizing Instruction for systems with other conditions A For suction line condition with a maximum of 10 Feet of lift and a
total of 100 feet of suction line
Figure A1-16 No2 Oil Connection Size Location and Recommended Line Sizes
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Model CBLE 125-800 HP Boilers
37
Figure A1-17 No 2 Oil Piping Single Boiler
Installation Remote Oil Pump
Figure A1-18 No 2 Oil Piping Multiple Boiler
Installation Remote Oil Pumps
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Model CBLE 125-800 HP Boilers
38
Figure A1-19 No 2 Oil Piping Multiple Boiler
Installation
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Model CBLE 125-800 HP Boilers
39
Figure A1-20 No 2 Oil Piping Typical Arrangement
Table A1-24 Model CB-LE Blowdown
Tank Sizing
BOILER HP WATER (GAL)
125 97
150 118
200 145
250 146
300 176
350 210
400 177
500 209
600 250
700 800 296
NOTE Quantity of water removed from boiler by lowering normal water line 4
BOILER
HP
HEATING SURFACE (SQ-FT)
FIRESIDE WATERSIDE
125 625 679
150 750 820
200 1000 1092
250 1250 1346
300 1500 1623
350 1750 1932
400 2000 2151
500 2500 2691
600 3000 3262
700 800 3500 3810
Table A1-25 Heating Surface Model CB-LE
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Model CBLE 125-800 HP Boilers
40
BOILER HPSTEAM VOLUME CU-FT
STEAM DISENGAGING AREASQ-IN
HIGH PRESSUREA LOW PRESSUREB HIGH PRESSUREA LOW PRESSUREB
125 254 366 5371 5887
150 307 443 6511 7138
200 377 544 7985 8752
250 492 706 7980 8695
300 595 853 9651 10516
350 709 1017 11507 12538
400 721 979 9793 10593
500 837 1137 11376 12303
600 1015 1378 13787 14911
700-800 1198 1627 16273 17600
NOTE Based on normal water levelA Based on 150 psig design pressureB Based on 15 psig design pressure
Table A1-26 Steam Volume and Disengaging Area
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Model CBLE 125-800 HP Boilers
41
BOILERHP
BOILERCAPACITY(LBSHR)
OPERATING PRESSURES (PSIG)
50 75 100 125 150 175 200 250
100 3450
2-12 2-12 NA NA NA NA NA NA
125 4313 3 2-12 2-12 2-12 NA NA NA NA
150 5175 3 3 2-12 2-12 2-12 2-12 NA NA
200 6900 3 3 3 3 3 2-12 2-12 2-12
250 8625 4 3 3 3 3 3 3 3
300 10350 4 4 4 3 3 3 3 3
350 12025 4 4 4 4 4 3 3 3
400 13800 5 4 4 4 4 4 4 3
500 17210 6 5 5 4 4 4 4 4
600 20700 6 6 5 5 5 4 4 4
700 24150 6 6 6 5 5 5 5 4
800 27600 6 6 6 6 6 5 5 5
NOTE Valve sizes (300 Flanges) given in inchesStandard Non-Return valve selections limited to a maximum 2 to 1 turndown(50 of full load) selections based on typical non-return valve sizing recommen-dations For final valve selection contact your C-B authorized representative Forhigh turndown applications see Boiler Book Section I3 Table I3-3 Indicates pressure drop of less than 75 psig All other selections are less than6 psig pressure drop
Boiler HP
OPERATINGPRESSURE
PSIG125 150 200 250 300 350 400 500 600 700 800
15 8 8 10 10 12 12 12 12 12 12 12
30 6 6 8 8 8 10 10 10 12 12 12
40 6 6 6 8 8 8 10 10 10 12 12
50 6 6 6 6 8 8 8 10 10 10 12
75 4 4 6 6 6 8 8 8 8 10 10
100 4 4 6 6 6 6 6 8 8 8 10
125 4 4 4 6 6 6 6 8 8 8 8
150 3 3 4 4 6 6 6 6 6 8 8
200 25 3 4 4 4 4 6 6 6 6 6
250 25 3 3 4 4 4 4 6 6 6 6
NOTES1 Steam nozzle sizes given in inches2 Recommended steam nozzle sizes based on 4000 to 5000 fpm steam velocity3 All standard steam nozzle sizes for 150 psig design pressure or greater are the sameas 125 psig operating pressure on the above table To increase or decrease the standardsize request the change with your local Cleaver-Brooks authorized representative4 Shaded area denotes special surge load baffles must be installed to avoid possible wa-ter carry-over5 For incremental operating pressures see Table I3-1 Steam Systems Fundamentals
Table A1-28 Recommended Steam Nozzle Size (for
4000 to 5000 fpm nozzle velocity)
Table A1-29 Recommended Non-Return Valve Size
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Model CBLE 125-800 HP Boilers
42
1 Shortest boiler room length (Dwg A) is obtained by allowing for possible future tube replacement (from front or rearof boiler) through a window or doorway Allowance is only made for minimum door swing at each end of the boilerThis arrangement provides sufficient aisle space at the front of the boiler but a ldquotightrdquo space condition at the rear
If space permits approximately 15 additional feet should be allowed at the rear for additional aisle and workingspace
2 Next shortest boiler room length (Dwg B) is obtained by allowing for possible future tube replacement from thefront of the boiler Allowance is only made for minimum door swing at the rear
If space permits approximately 15 additional feet should be allowed at the rear for additional aisle and workingspace
3 A slightly longer boiler room (Dwg C) is obtained by allowing for possible future tube replacement from the rear ofthe boiler Allowance for door swing at the front provides sufficient aisle and working space at the front
Figure A1-21 Boiler Room Length (Typical Layouts)
BOILER HP 125-200 250-350 400-800
Dimension A 82 93 102
Dimension B 115 141 171
NOTES1 Recommended Minimum Distance Between Boiler and Wall Dimen-
sion ldquoArdquo allows for a ldquoclearrdquo 42 aisle between the water col-umn on the boiler and the wall If space permits this aisle
should be widened 2 Recommended Minimum Distance Between BoilersDimension ldquoBrdquo between boilers allows for a ldquoclearrdquo aisle of42 - 125 -200 hp48 - 250-350 hp60 - 400-800 hpIf space permits this aisle should be widened
Figure A1-22 Boiler Room Width (Typical Layout)
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Model CBLE 125-800 HP Boilers
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Model CBLE 125-800 HP Boilers
28
ENGINEERING DATA
Sound Level Table A1-20 gives a summary of predicted sound pressure levels for Model CBboilers with 30 ppm LE Options Contact your local Cleaver-Brooks authorizedrepresentative for sound levels or other LE Options
Units - The units for the sound level tables are dbA (decibels measured on the A-weighted scale) in reference to 00002 microbars (20 micro-Newtons per square
meter) Their reference are standardly used in specifying and reporting soundpressure levels on industrial equipment
Test Method - The sound pressure levels in the above tables were obtained fromtests in accordance with the ldquoABMA Test Code for the Measurement of Sound fromPackaged Boilersrdquo In accordance with this code the sound pressure levels reportedwere measured on the boiler centerline 4-12 feet vertically above the bottom of thebase rails and 3 feet horizontally in front of the end of the blower motor or frontsurface of the electrical cabinet
Sound Level Meter - The sound level meter used complies with ANSI S14 Type 1(Precision) The readings are taken with the meter set for slow response andcorrected for background levels
Sound Pressure - The large size boilers the need for auxiliary equipment and thenecessary interconnecting piping make it impractical (and sometimes impossible) toprovide a boiler testing environment which is suitable for taking the data needed todevelop Sound Pressure Power levels
Typical Values - Sound pressure levels (dbA) for the same boiler will vary betweenboiler rooms Sound levels will vary with motor type NOx levels and altitudes Inaddition variations will occur between different people using different sound meterson the same boiler And finally no two boilers can be expected to give precisely thesame sound levels For these reasons we can only predict but not guarantee soundlevels (dbA)
BOILER HP 125 150 200 250 300 350 400 500 600 700 800
HFO dbA 84 84 84 83 84 85 84 85 85 88 90
LFO dbA 82 82 83 81 82 83 82 83 83 84 89
HFG dbA 82 82 83 82 83 84 83 83 85 87 90
LFG dbA 81 81 82 81 82 83 81 81 82 84 88
NOTES1 Sound pressure levels measured on boilers operating in various locations and ex-
pressed in dbA are as shown2 Based on standard altitude fans and fan motors 60 Hz3 Contact your local Cleaver-Brooks authorized representative for sound levels of 60 25or 20 ppm LE Options
ABBREVIATIONS
HF = High Fire LF = Low Fire O = Oil G = Gas
Table A1-20 Model CBLE Predicted Sound Levels 30 ppm NOx Systemss
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Model CBLE 125-800 HP Boilers
29
Gas-Fired Burners Table A1-21 shows gas pressure with standard over- and undersized gas trains
Table A1-22 shows minimum required gas pressure altitude conversion
Figure A1-13 shows standard gas train sizes and locations for Model CB FiretubeBoilers
Figure A1-14 shows typical gas train piping layouts for multiple boiler applications
Figure A1-15 shows standard gas train components
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Model CBLE 125-800 HP Boilers
30
Table A1-21 Standard Undersize and Oversize Gas Trains
CBLE
BOILER HP GAS TRAINSIZE
UPSTREAMVALVE
DOWNSTREAMVALVE
EMISSIONS LEVEL 09 ppm 15 ppm 20 ppm 30 ppm 60 ppm UC
125 HP 15 in BB BB 33 - 49 psi 33 - 49 psi 08 - 50 psi 07 - 50 psi 07 - 50 psi 07 - 50 ps
125 HP 15 in PC PC 34 - 50 psi 34 - 50 psi 09 - 50 psi 08 - 50 psi 08 - 50 psi 08 - 50 ps
125 HP 20 in BB BB 31 - 33 psi 31 - 33 psi 06 - 08 psi 06 - 07 psi 05 - 07 psi 05 - 07 ps
125 HP 20 in PC PC 31 - 34 psi 31 - 34 psi 06 - 09 psi 06 - 08 psi 06 - 08 psi 05 - 08 ps
125 HP 25 in PC PC 30 - 31 psi 30 - 31 psi 04 - 06 psi 04 - 06 psi 04 - 05 psi 04 - 05 ps
125 HP 30 in PC PC 29 - 30 psi 29 - 30 psi 04 - 04 psi 04 - 04 psi 04 - 04 psi 03 - 04 ps
125 HP 40 in PC PC 29 - 29 psi 29 - 29 psi 04 - 04 psi 03 - 04 psi 03 - 04 psi 03 - 03 ps
150 HP 15 in BB BB 37 - 55 psi 39 - 58 psi 10 - 47 psi 09 - 50 psi 09 - 50 psi 09 - 50 ps
150 HP 15 in PC PC 38 - 57 psi 40 - 60 psi 11 - 42 psi 11 - 50 psi 10 - 50 psi 10 - 50 ps
150 HP 20 in BB BB 34 - 37 psi 36 - 39 psi 07 - 10 psi 06 - 09 psi 06 - 09 psi 06 - 09 ps
150 HP 20 in PC PC 34 - 38 psi 36 - 40 psi 07 - 11 psi 07 - 11 psi 07 - 10 psi 06 - 10 ps
150 HP 25 in PC PC 32 - 34 psi 34 - 36 psi 05 - 07 psi 04 - 06 psi 04 - 06 psi 04 - 06 ps
150 HP 30 in PC PC 32 - 32 psi 34 - 34 psi 04 - 05 psi 04 - 04 psi 04 - 04 psi 03 - 04 ps
150 HP 40 in PC PC 31 - 32 psi 33 - 34 psi 04 - 04 psi 03 - 04 psi 03 - 04 psi 03 - 03 ps
200 HP 15 in BB BB 46 - 69 psi 50 - 75 psi 16 - 50 psi 15 - 50 psi 15 - 50 ps
200 HP 15 in PC PC 48 - 72 psi 52 - 78 psi 18 - 50 psi 17 - 50 psi 17 - 50 ps
200 HP 20 in BB BB 41 - 46 psi 45 - 50 psi 10 - 16 psi 10 - 15 psi 10 - 15 ps
200 HP 20 in PC PC 41 - 48 psi 45 - 52 psi 11 - 18 psi 11 - 17 psi 10 - 17 ps
200 HP 25 in PC PC 38 - 41 psi 42 - 45 psi 07 - 10 psi 07 - 10 psi 06 - 10 ps
200 HP 30 in PC PC 36 - 38 psi 40 - 42 psi 06 - 07 psi 05 - 07 psi 05 - 06 ps
200 HP 40 in PC PC 36 - 36 psi 40 - 40 psi 05 - 06 psi 05 - 05 psi 04 - 05 ps
250 HP 15 in BB BB 41 - 62 psi 44 - 67 psi 24 - 50 psi 24 - 27 psi 24 - 26 psi 23 - 26 ps
250 HP 15 in PC PC 45 - 67 psi 48 - 72 psi 28 - 50 psi 27 - 28 psi 27 - 27 psi 27 - 27 ps
250 HP 20 in BB BB 33 - 38 psi 37 - 41 psi 16 - 24 psi 16 - 24 psi 16 - 24 psi 15 - 23 ps
250 HP 20 in PC PC 34 - 40 psi 37 - 43 psi 17 - 28 psi 17 - 27 psi 16 - 27 psi 16 - 27 ps
250 HP 25 in PC PC 29 - 33 psi 32 - 37 psi 11 - 16 psi 11 - 16 psi 11 - 16 psi 10 - 15 ps
250 HP 30 in PC PC 27 - 29 psi 31 - 32 psi 09 - 11 psi 09 - 11 psi 09 - 11 psi 09 - 10 ps
250 HP 40 in PC PC 26 - 27 psi 29 - 31 psi 08 - 09 psi 08 - 09 psi 08 - 09 psi 08 - 09 ps
300 HP 15 in - 20 in BB BB 55 - 83 psi 57 - 85 psi 30 - 50 psi 30 - 36 psi 30 - 35 psi 30 - 35 ps
300 HP 15 in - 20 in PC PC 58 - 87 psi 60 - 90 psi 33 - 50 psi 33 - 37 psi 33 - 36 psi 33 - 36 ps
300 HP 20 in BB BB 46 - 55 psi 47 - 57 psi 21 - 30 psi 21 - 30 psi 20 - 30 psi 20 - 30 ps
300 HP 20 in PC PC 47 - 58 psi 48 - 60 psi 22 - 33 psi 22 - 33 psi 21 - 33 psi 21 - 33 ps
300 HP 30 in PC PC 39 - 46 psi 40 - 47 psi 13 - 21 psi 13 - 21 psi 12 - 20 psi 12 - 20 ps
300 HP 40 in PC PC 37 - 39 psi 39 - 40 psi 11 - 13 psi 11 - 13 psi 10 - 12 psi 10 - 12 ps
350 HP 15 in - 20 in BB BB 64 - 90 psi 62 - 90 psi 42 - 50 psi 42 - 50 psi 41 - 50 psi 41 - 50 ps
350 HP 15 in - 20 in PC PC 68 - 90 psi 66 - 90 psi 46 - 50 psi 46 - 50 psi 45 - 50 psi 45 - 50 ps
350 HP 20 in BB BB 54 - 64 psi 53 - 62 psi 32 - 42 psi 32 - 42 psi 32 - 41 psi 31 - 41 ps
350 HP 20 in PC PC 56 - 68 psi 54 - 66 psi 34 - 46 psi 34 - 46 psi 33 - 45 psi 33 - 45 ps
350 HP 25 in PC PC 43 - 54 psi 42 - 53 psi 21 - 32 psi 21 - 32 psi 20 - 32 psi 20 - 31 ps
350 HP 30 in PC PC 40 - 43 psi 38 - 42 psi 17 - 21 psi 17 - 21 psi 17 - 20 psi 16 - 20 ps
350 HP 40 in PC PC 37 - 40 psi 36 - 38 psi 15 - 17 psi 15 - 17 psi 14 - 17 psi 14 - 16 ps
400 HP 15 in - 20 in BB BB 69 - 90 psi 69 - 90 psi 46 - 50 psi 46 - 50 psi 45 - 50 psi 45 - 50 ps
400 HP 15 in - 20 in PC PC 74 - 90 psi 75 - 90 psi 51 - 87 psi 51 - 77 psi 51 - 77 psi 51 - 77 ps
400 HP 20 in BB BB 55 - 69 psi 56 - 69 psi 32 - 46 psi 32 - 46 psi 32 - 45 psi 32 - 45 ps
400 HP 20 in PC PC 57 - 74 psi 58 - 75 psi 34 - 50 psi 34 - 50 psi 34 - 50 psi 34 - 50 ps
400 HP 25 in PC PC 41 - 55 psi 42 - 56 psi 18 - 32 psi 18 - 32 psi 18 - 32 psi 18 - 32 ps
400 HP 30 in PC PC 37 - 41 psi 38 - 42 psi 13 - 18 psi 13 - 18 psi 13 - 18 psi 13 - 18 ps
400 HP 40 in PC PC 34 - 37 psi 35 - 38 psi 11 - 13 psi 10 - 13 psi 10 - 13 psi 10 - 13 ps
500 HP 20 in - 25 in BB PC 58 - 76 psi 58 - 76 psi 46 - 50 psi 46 - 50 psi 45 - 50 psi 45 - 50 ps
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Model CBLE 125-800 HP Boilers
31
BB = Butter Ball PC = Plug Cock
NOTE In cases where the gas train increases in size after the regulating valve two diameters are listed The first number is the customer connection size
500 HP 20 in - 25 in PC PC 60 - 83 psi 60 - 83 psi 48 - 50 psi 47 - 50 psi 47 - 50 psi 47 - 50 psi
500 HP 25 in PC PC 39 - 58 psi 39 - 58 psi 27 - 46 psi 27 - 46 psi 27 - 45 psi 26 - 45 psi
500 HP 30 in PC PC 33 - 39 psi 33 - 39 psi 20 - 27 psi 20 - 27 psi 20 - 27 psi 20 - 26 psi
500 HP 40 in PC PC 28 - 33 psi 28 - 33 psi 16 - 20 psi 16 - 20 psi 15 - 20 psi 15 - 20 psi
600 HP 20 in - 25 in BB PC 80 - 90 psi 80 - 90 psi 65 - 90 psi 65 - 90 psi 64 - 89 psi 63 - 88 psi
600 HP 20 in - 25 in PC PC 82 - 90 psi 82 - 90 psi 67 - 100 psi 67 - 100 psi 66 - 99 psi 66 - 99 psi
600 HP 25 in PC PC 54 - 80 psi 54 - 80 psi 39 - 50 psi 38 - 50 psi 38 - 50 psi 37 - 50 psi
600 HP 25 in - 30 in PC PC 52 - 54 psi 52 - 54 psi 37 - 39 psi 36 - 38 psi 35 - 38 psi 35 - 37 psi
600 HP 30 in PC PC 43 - 52 psi 43 - 52 psi 28 - 37 psi 27 - 36 psi 27 - 35 psi 26 - 35 psi
600 HP 40 in PC PC 37 - 43 psi 37 - 43 psi 22 - 28 psi 21 - 27 psi 20 - 27 psi 20 - 26 psi
700 HP 20 in - 30 in BB PC 110 - 150 psi 107 - 150 psi 87 - 131 psi 86 - 130 psi 86 - 129 psi 86 - 128 psi
700 HP 20 in - 30 in PC PC 113 - 150 psi 110 - 150 psi 90 - 135 psi 89 - 134 psi 89 - 134 psi 89 - 133 psi
700 HP 25 in - 30 in PC PC 71 - 90 psi 68 - 90 psi 48 - 50 psi 47 - 50 psi 47 - 50 psi 46 - 50 psi
700 HP 30 in PC PC 60 - 71 psi 57 - 68 psi 36 - 48 psi 36 - 47 psi 35 - 47 psi 35 - 46 psi
700 HP 40 in PC PC 51 - 60 psi 48 - 57 psi 28 - 36 psi 27 - 36 psi 27 - 35 psi 26 - 35 psi
800 HP 20 in - 30 in BB PC 108 - 150 psi 107 - 150 psi 106 - 150 psi
800 HP 20 in - 30 in PC PC 112 - 150 psi 111 - 150 psi 110 - 150 psi800 HP 25 in - 30 in PC PC 61 - 90 psi 60 - 100 psi 59 - 100 psi
800 HP 30 in PC PC 48 - 61 psi 47 - 50 psi 46 - 50 psi
800 HP 40 in PC PC 35 - 48 psi 34 - 47 psi 34 - 46 psi
Standard Gas Train size is highlighted
Table A1-21 Standard Undersize and Oversize Gas Trains (Continued)
CBLE
BOILER HP GAS TRAINSIZE
UPSTREAMVALVE
DOWNSTREAMVALVE
EMISSIONS LEVEL 09 ppm 15 ppm 20 ppm 30 ppm 60 ppm UC
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Model CBLE 125-800 HP Boilers
32
ALTITUDE(FT)
CORRECTIONFACTOR
ALTITUDE(FT)
CORRECTIONFACTOR
1000 104 6000 1252000 107 7000 130
3000 111 8000 135
4000 116 9000 140
5000 121 - -
To obtain minimum required gas pressure at altitudesabove 700 feet multiply the pressure by the listed factorsInches WC x 0577 = ozsq-inOzsq-in x 1732 = Inches WCInches WC x 00361= psigOzsq-in x 00625 = psigPsig x 2771 = Inches WCPsig x 160 = Ozsq-in
Table A1-22 Minimum Required Regulated Gas Pressure
Altitude Conversion
BOILERHP
TYPE OF GAS AND HEAT CONTENT
NATURAL GAS1000 (Btucu-ft)
PROPANE GAS2550 (Btucu-ft)
125 5103 2000
150 6124 2402
200 8165 3202
250 10206 4002
300 12247 4802
350 14280 5600
400 16329 6404
500 20415 8006
600 24494 9605
700 28576 11206
800 32659 12807
Table A1-23 Maximum Gas Consumption (CFH)
for Natural Gas and Propane Vapor
BOILER
HP
MODEL CB
CONNECTION SIZE
(IN NPT)
LOCATIONDIMENSION
ldquoArdquo (IN)
125-200 1-12 52
250-350 2 56
400 2 58
500 2-12 60
600 2-12 - 3 71
700-800 3 65
Figure A1-13 Standard Gas Train Connection Size and Location
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Model CBLE 125-800 HP Boilers
33
Oil-Fired Burners Fuel oil consumption information is shown on the boiler rating sheets in theDimensions and Rating Section
Figure A1-16 shows the oil connection sizes and locations for Model CB Boilersfiring No 2 oil
Figure A1-17 through Figure A1-18 show typical oil systems and layouts
Figure A1-19 and Figure A1-20 show the detail of an oil transfer tank (day tank)typically utilized to provide a storage reservoir between the oil system supply pumpand the boiler oil pump
General BoilerInformation
Table A1-24 shows blowdown tank sizing information
Table A1-25 provides heating surface information
Table A1-26 provides steam volume and disengaging area information
Table A1-27 provides recommended steam nozzle sizes
Table A1-28 provides recommended non-return valve sizes
Boiler RoomInformation
Figure A1-21 shows typical boiler room length requirements
Figure A1-22 shows typical boiler room width requirements
Figure A1-23 shows typical breeching arrangements
Stack SupportCapabilities
All standard Cleaver-Brooks Firetube Boilers with an LE option can support up to2000 lbs without additional support
LE Boilers 250 hp through 800 hp can be reinforced to support 3000 lbs
StackBreechingSize Criteria
The design of the stack and breeching must provide the required draft at each boilerflue gas outlet Proper draft is critical to burner performance
Although constant pressure at the flue gas outlet of the Model CB-LE is not requiredit is necessary to size the stackbreeching to limit flue gas pressure variation Theallowable pressure range is ndash025 WC to +025 WC
For additional information please review Section I4 General Engineering Data(Stacks) and Section F Stacks Stack and breeching sizes should always be providedby a reputable stack supplier who will design the stack and breeching system basedon the above criteria Your local Cleaver-Brooks authorized representative is capableof assisting in your evaluation of the stackbreeching design
Boiler RoomCombustion Air
When determining boiler room air requirements the size of the room air flow andvelocity of air must be reviewed as follows
1 Size (area) and location of air supply openings in boiler room
A Two (2) permanent air supply openings in the outer walls of the boiler room
are recommended Locate (1) at each end of the boiler room preferablybelow a height of 7 feet This allows air to sweep the length of the boiler
B Air supply openings can be louvered for weather protection but they shouldnot be covered with fine mesh wire as this type of covering has poor air flowqualities and is subject to clogging by dust or dirt
C A vent fan in the boiler room is not recommended as it could create a slightvacuum under certain conditions and cause variations in the quantity ofcombustion air This can result in unsatisfactory burner performance
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Model CBLE 125-800 HP Boilers
34
D Under no condition should the total area of the air supply openings be lessthan (1) square foot
E Size the openings by using the formulaArea (sq-ft) = CFMFPM
2 Amount of air required (cfm)
A Combustion Air = Rated bhp x 8 cfmbhp
B Ventilation Air = Maximum bhp x 2 cfmbhp
C Total recommended air = 10 cfmbhp - up to 1000 feet elevation Add 3percent more per 1000 feet of added elevation
3 Acceptable air velocity in Boiler Room (fpm)
A From floor to (7) foot height - 250 fpm
B Above (7) foot height - 500 fpm
Example Determine the area of the boiler room air supply openings for (1) 300 hpboiler at 800 feet altitude The air openings are to be 5 feet above floor level
bull Air required 300 x 10 = 3000 cfm (from 2B above)
bull Air velocity Up to 7 feet = 250 fpm (from 3 above)
bull Area Required Area = cfm = 3000250 = 12 sq-ft total
bull AreaOpening 122 = 6 sq-ftopening (2 required)
Notice
Consult local codes which may supersede these requirements
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Model CBLE 125-800 HP Boilers
35
This figure illustrates the basic gas valve arrangement on Cleaver-BrooksModel CB boiler and shows the contractors connection point The valves andcontrols between the contractor connection point and the gas main in thestreet are representative of a typical installation Actual requirements mayvary depending on local codes or local gas company requirements which
should be investigated prior to preparation of specifications and prior to con-struction
A Utilities service valveB Utilities service regulatorC Gas meterD Piping from meter to boiler
The size of the gas line from the meter to the gas pressure regulator at theboiler can be very important if gas pressures are marginal The gas line sizingis dependent on
1 Gas pressure at outlet of gas meter (C)2 Rate of gas flow required CFH3 Length of pipe run (D)4 Pressure required at contractor connection point
The local gas utility will advise the pressure that is available at the outlet oftheir meter
Figure A1-14 Typical Gas Piping Layout
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Model CBLE 125-800 HP Boilers
36
5
6
S
1
3
42
PILOT GAS LINE
S
S
MAIN GAS LINE
M M
ToBurner
GasSupply
11
10
97
12138
14 15
FLOW
FLOW
Figure A1-15 Model CB-LE Gas Train Components
BOILER
HP
MODEL CB
SUPPLYANDRE-
TURNCONN SIZES
(IN)(NPT)
A(IN)
RECOMMENDED OIL LINEA
SIZES(STANDARD PIPE)
(IN - IPS)
STOR-AGE
TANK TOBOILER
OR PUMPCONNECT
PUMPTO
BOILER
RE-TURN
LINE TOTANK
125150 200
34 12-12 1 1 1
250300350
34 34 1 1 1
400500600
34 11-34 1 1 1
700800
1 11-34 1 1 1
NOTE See No 2 Oil Line Sizing Instruction for systems with other conditions A For suction line condition with a maximum of 10 Feet of lift and a
total of 100 feet of suction line
Figure A1-16 No2 Oil Connection Size Location and Recommended Line Sizes
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Model CBLE 125-800 HP Boilers
37
Figure A1-17 No 2 Oil Piping Single Boiler
Installation Remote Oil Pump
Figure A1-18 No 2 Oil Piping Multiple Boiler
Installation Remote Oil Pumps
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 3843
Model CBLE 125-800 HP Boilers
38
Figure A1-19 No 2 Oil Piping Multiple Boiler
Installation
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
39
Figure A1-20 No 2 Oil Piping Typical Arrangement
Table A1-24 Model CB-LE Blowdown
Tank Sizing
BOILER HP WATER (GAL)
125 97
150 118
200 145
250 146
300 176
350 210
400 177
500 209
600 250
700 800 296
NOTE Quantity of water removed from boiler by lowering normal water line 4
BOILER
HP
HEATING SURFACE (SQ-FT)
FIRESIDE WATERSIDE
125 625 679
150 750 820
200 1000 1092
250 1250 1346
300 1500 1623
350 1750 1932
400 2000 2151
500 2500 2691
600 3000 3262
700 800 3500 3810
Table A1-25 Heating Surface Model CB-LE
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Model CBLE 125-800 HP Boilers
40
BOILER HPSTEAM VOLUME CU-FT
STEAM DISENGAGING AREASQ-IN
HIGH PRESSUREA LOW PRESSUREB HIGH PRESSUREA LOW PRESSUREB
125 254 366 5371 5887
150 307 443 6511 7138
200 377 544 7985 8752
250 492 706 7980 8695
300 595 853 9651 10516
350 709 1017 11507 12538
400 721 979 9793 10593
500 837 1137 11376 12303
600 1015 1378 13787 14911
700-800 1198 1627 16273 17600
NOTE Based on normal water levelA Based on 150 psig design pressureB Based on 15 psig design pressure
Table A1-26 Steam Volume and Disengaging Area
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Model CBLE 125-800 HP Boilers
41
BOILERHP
BOILERCAPACITY(LBSHR)
OPERATING PRESSURES (PSIG)
50 75 100 125 150 175 200 250
100 3450
2-12 2-12 NA NA NA NA NA NA
125 4313 3 2-12 2-12 2-12 NA NA NA NA
150 5175 3 3 2-12 2-12 2-12 2-12 NA NA
200 6900 3 3 3 3 3 2-12 2-12 2-12
250 8625 4 3 3 3 3 3 3 3
300 10350 4 4 4 3 3 3 3 3
350 12025 4 4 4 4 4 3 3 3
400 13800 5 4 4 4 4 4 4 3
500 17210 6 5 5 4 4 4 4 4
600 20700 6 6 5 5 5 4 4 4
700 24150 6 6 6 5 5 5 5 4
800 27600 6 6 6 6 6 5 5 5
NOTE Valve sizes (300 Flanges) given in inchesStandard Non-Return valve selections limited to a maximum 2 to 1 turndown(50 of full load) selections based on typical non-return valve sizing recommen-dations For final valve selection contact your C-B authorized representative Forhigh turndown applications see Boiler Book Section I3 Table I3-3 Indicates pressure drop of less than 75 psig All other selections are less than6 psig pressure drop
Boiler HP
OPERATINGPRESSURE
PSIG125 150 200 250 300 350 400 500 600 700 800
15 8 8 10 10 12 12 12 12 12 12 12
30 6 6 8 8 8 10 10 10 12 12 12
40 6 6 6 8 8 8 10 10 10 12 12
50 6 6 6 6 8 8 8 10 10 10 12
75 4 4 6 6 6 8 8 8 8 10 10
100 4 4 6 6 6 6 6 8 8 8 10
125 4 4 4 6 6 6 6 8 8 8 8
150 3 3 4 4 6 6 6 6 6 8 8
200 25 3 4 4 4 4 6 6 6 6 6
250 25 3 3 4 4 4 4 6 6 6 6
NOTES1 Steam nozzle sizes given in inches2 Recommended steam nozzle sizes based on 4000 to 5000 fpm steam velocity3 All standard steam nozzle sizes for 150 psig design pressure or greater are the sameas 125 psig operating pressure on the above table To increase or decrease the standardsize request the change with your local Cleaver-Brooks authorized representative4 Shaded area denotes special surge load baffles must be installed to avoid possible wa-ter carry-over5 For incremental operating pressures see Table I3-1 Steam Systems Fundamentals
Table A1-28 Recommended Steam Nozzle Size (for
4000 to 5000 fpm nozzle velocity)
Table A1-29 Recommended Non-Return Valve Size
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Model CBLE 125-800 HP Boilers
42
1 Shortest boiler room length (Dwg A) is obtained by allowing for possible future tube replacement (from front or rearof boiler) through a window or doorway Allowance is only made for minimum door swing at each end of the boilerThis arrangement provides sufficient aisle space at the front of the boiler but a ldquotightrdquo space condition at the rear
If space permits approximately 15 additional feet should be allowed at the rear for additional aisle and workingspace
2 Next shortest boiler room length (Dwg B) is obtained by allowing for possible future tube replacement from thefront of the boiler Allowance is only made for minimum door swing at the rear
If space permits approximately 15 additional feet should be allowed at the rear for additional aisle and workingspace
3 A slightly longer boiler room (Dwg C) is obtained by allowing for possible future tube replacement from the rear ofthe boiler Allowance for door swing at the front provides sufficient aisle and working space at the front
Figure A1-21 Boiler Room Length (Typical Layouts)
BOILER HP 125-200 250-350 400-800
Dimension A 82 93 102
Dimension B 115 141 171
NOTES1 Recommended Minimum Distance Between Boiler and Wall Dimen-
sion ldquoArdquo allows for a ldquoclearrdquo 42 aisle between the water col-umn on the boiler and the wall If space permits this aisle
should be widened 2 Recommended Minimum Distance Between BoilersDimension ldquoBrdquo between boilers allows for a ldquoclearrdquo aisle of42 - 125 -200 hp48 - 250-350 hp60 - 400-800 hpIf space permits this aisle should be widened
Figure A1-22 Boiler Room Width (Typical Layout)
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Model CBLE 125-800 HP Boilers
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Model CBLE 125-800 HP Boilers
29
Gas-Fired Burners Table A1-21 shows gas pressure with standard over- and undersized gas trains
Table A1-22 shows minimum required gas pressure altitude conversion
Figure A1-13 shows standard gas train sizes and locations for Model CB FiretubeBoilers
Figure A1-14 shows typical gas train piping layouts for multiple boiler applications
Figure A1-15 shows standard gas train components
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Model CBLE 125-800 HP Boilers
30
Table A1-21 Standard Undersize and Oversize Gas Trains
CBLE
BOILER HP GAS TRAINSIZE
UPSTREAMVALVE
DOWNSTREAMVALVE
EMISSIONS LEVEL 09 ppm 15 ppm 20 ppm 30 ppm 60 ppm UC
125 HP 15 in BB BB 33 - 49 psi 33 - 49 psi 08 - 50 psi 07 - 50 psi 07 - 50 psi 07 - 50 ps
125 HP 15 in PC PC 34 - 50 psi 34 - 50 psi 09 - 50 psi 08 - 50 psi 08 - 50 psi 08 - 50 ps
125 HP 20 in BB BB 31 - 33 psi 31 - 33 psi 06 - 08 psi 06 - 07 psi 05 - 07 psi 05 - 07 ps
125 HP 20 in PC PC 31 - 34 psi 31 - 34 psi 06 - 09 psi 06 - 08 psi 06 - 08 psi 05 - 08 ps
125 HP 25 in PC PC 30 - 31 psi 30 - 31 psi 04 - 06 psi 04 - 06 psi 04 - 05 psi 04 - 05 ps
125 HP 30 in PC PC 29 - 30 psi 29 - 30 psi 04 - 04 psi 04 - 04 psi 04 - 04 psi 03 - 04 ps
125 HP 40 in PC PC 29 - 29 psi 29 - 29 psi 04 - 04 psi 03 - 04 psi 03 - 04 psi 03 - 03 ps
150 HP 15 in BB BB 37 - 55 psi 39 - 58 psi 10 - 47 psi 09 - 50 psi 09 - 50 psi 09 - 50 ps
150 HP 15 in PC PC 38 - 57 psi 40 - 60 psi 11 - 42 psi 11 - 50 psi 10 - 50 psi 10 - 50 ps
150 HP 20 in BB BB 34 - 37 psi 36 - 39 psi 07 - 10 psi 06 - 09 psi 06 - 09 psi 06 - 09 ps
150 HP 20 in PC PC 34 - 38 psi 36 - 40 psi 07 - 11 psi 07 - 11 psi 07 - 10 psi 06 - 10 ps
150 HP 25 in PC PC 32 - 34 psi 34 - 36 psi 05 - 07 psi 04 - 06 psi 04 - 06 psi 04 - 06 ps
150 HP 30 in PC PC 32 - 32 psi 34 - 34 psi 04 - 05 psi 04 - 04 psi 04 - 04 psi 03 - 04 ps
150 HP 40 in PC PC 31 - 32 psi 33 - 34 psi 04 - 04 psi 03 - 04 psi 03 - 04 psi 03 - 03 ps
200 HP 15 in BB BB 46 - 69 psi 50 - 75 psi 16 - 50 psi 15 - 50 psi 15 - 50 ps
200 HP 15 in PC PC 48 - 72 psi 52 - 78 psi 18 - 50 psi 17 - 50 psi 17 - 50 ps
200 HP 20 in BB BB 41 - 46 psi 45 - 50 psi 10 - 16 psi 10 - 15 psi 10 - 15 ps
200 HP 20 in PC PC 41 - 48 psi 45 - 52 psi 11 - 18 psi 11 - 17 psi 10 - 17 ps
200 HP 25 in PC PC 38 - 41 psi 42 - 45 psi 07 - 10 psi 07 - 10 psi 06 - 10 ps
200 HP 30 in PC PC 36 - 38 psi 40 - 42 psi 06 - 07 psi 05 - 07 psi 05 - 06 ps
200 HP 40 in PC PC 36 - 36 psi 40 - 40 psi 05 - 06 psi 05 - 05 psi 04 - 05 ps
250 HP 15 in BB BB 41 - 62 psi 44 - 67 psi 24 - 50 psi 24 - 27 psi 24 - 26 psi 23 - 26 ps
250 HP 15 in PC PC 45 - 67 psi 48 - 72 psi 28 - 50 psi 27 - 28 psi 27 - 27 psi 27 - 27 ps
250 HP 20 in BB BB 33 - 38 psi 37 - 41 psi 16 - 24 psi 16 - 24 psi 16 - 24 psi 15 - 23 ps
250 HP 20 in PC PC 34 - 40 psi 37 - 43 psi 17 - 28 psi 17 - 27 psi 16 - 27 psi 16 - 27 ps
250 HP 25 in PC PC 29 - 33 psi 32 - 37 psi 11 - 16 psi 11 - 16 psi 11 - 16 psi 10 - 15 ps
250 HP 30 in PC PC 27 - 29 psi 31 - 32 psi 09 - 11 psi 09 - 11 psi 09 - 11 psi 09 - 10 ps
250 HP 40 in PC PC 26 - 27 psi 29 - 31 psi 08 - 09 psi 08 - 09 psi 08 - 09 psi 08 - 09 ps
300 HP 15 in - 20 in BB BB 55 - 83 psi 57 - 85 psi 30 - 50 psi 30 - 36 psi 30 - 35 psi 30 - 35 ps
300 HP 15 in - 20 in PC PC 58 - 87 psi 60 - 90 psi 33 - 50 psi 33 - 37 psi 33 - 36 psi 33 - 36 ps
300 HP 20 in BB BB 46 - 55 psi 47 - 57 psi 21 - 30 psi 21 - 30 psi 20 - 30 psi 20 - 30 ps
300 HP 20 in PC PC 47 - 58 psi 48 - 60 psi 22 - 33 psi 22 - 33 psi 21 - 33 psi 21 - 33 ps
300 HP 30 in PC PC 39 - 46 psi 40 - 47 psi 13 - 21 psi 13 - 21 psi 12 - 20 psi 12 - 20 ps
300 HP 40 in PC PC 37 - 39 psi 39 - 40 psi 11 - 13 psi 11 - 13 psi 10 - 12 psi 10 - 12 ps
350 HP 15 in - 20 in BB BB 64 - 90 psi 62 - 90 psi 42 - 50 psi 42 - 50 psi 41 - 50 psi 41 - 50 ps
350 HP 15 in - 20 in PC PC 68 - 90 psi 66 - 90 psi 46 - 50 psi 46 - 50 psi 45 - 50 psi 45 - 50 ps
350 HP 20 in BB BB 54 - 64 psi 53 - 62 psi 32 - 42 psi 32 - 42 psi 32 - 41 psi 31 - 41 ps
350 HP 20 in PC PC 56 - 68 psi 54 - 66 psi 34 - 46 psi 34 - 46 psi 33 - 45 psi 33 - 45 ps
350 HP 25 in PC PC 43 - 54 psi 42 - 53 psi 21 - 32 psi 21 - 32 psi 20 - 32 psi 20 - 31 ps
350 HP 30 in PC PC 40 - 43 psi 38 - 42 psi 17 - 21 psi 17 - 21 psi 17 - 20 psi 16 - 20 ps
350 HP 40 in PC PC 37 - 40 psi 36 - 38 psi 15 - 17 psi 15 - 17 psi 14 - 17 psi 14 - 16 ps
400 HP 15 in - 20 in BB BB 69 - 90 psi 69 - 90 psi 46 - 50 psi 46 - 50 psi 45 - 50 psi 45 - 50 ps
400 HP 15 in - 20 in PC PC 74 - 90 psi 75 - 90 psi 51 - 87 psi 51 - 77 psi 51 - 77 psi 51 - 77 ps
400 HP 20 in BB BB 55 - 69 psi 56 - 69 psi 32 - 46 psi 32 - 46 psi 32 - 45 psi 32 - 45 ps
400 HP 20 in PC PC 57 - 74 psi 58 - 75 psi 34 - 50 psi 34 - 50 psi 34 - 50 psi 34 - 50 ps
400 HP 25 in PC PC 41 - 55 psi 42 - 56 psi 18 - 32 psi 18 - 32 psi 18 - 32 psi 18 - 32 ps
400 HP 30 in PC PC 37 - 41 psi 38 - 42 psi 13 - 18 psi 13 - 18 psi 13 - 18 psi 13 - 18 ps
400 HP 40 in PC PC 34 - 37 psi 35 - 38 psi 11 - 13 psi 10 - 13 psi 10 - 13 psi 10 - 13 ps
500 HP 20 in - 25 in BB PC 58 - 76 psi 58 - 76 psi 46 - 50 psi 46 - 50 psi 45 - 50 psi 45 - 50 ps
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Model CBLE 125-800 HP Boilers
31
BB = Butter Ball PC = Plug Cock
NOTE In cases where the gas train increases in size after the regulating valve two diameters are listed The first number is the customer connection size
500 HP 20 in - 25 in PC PC 60 - 83 psi 60 - 83 psi 48 - 50 psi 47 - 50 psi 47 - 50 psi 47 - 50 psi
500 HP 25 in PC PC 39 - 58 psi 39 - 58 psi 27 - 46 psi 27 - 46 psi 27 - 45 psi 26 - 45 psi
500 HP 30 in PC PC 33 - 39 psi 33 - 39 psi 20 - 27 psi 20 - 27 psi 20 - 27 psi 20 - 26 psi
500 HP 40 in PC PC 28 - 33 psi 28 - 33 psi 16 - 20 psi 16 - 20 psi 15 - 20 psi 15 - 20 psi
600 HP 20 in - 25 in BB PC 80 - 90 psi 80 - 90 psi 65 - 90 psi 65 - 90 psi 64 - 89 psi 63 - 88 psi
600 HP 20 in - 25 in PC PC 82 - 90 psi 82 - 90 psi 67 - 100 psi 67 - 100 psi 66 - 99 psi 66 - 99 psi
600 HP 25 in PC PC 54 - 80 psi 54 - 80 psi 39 - 50 psi 38 - 50 psi 38 - 50 psi 37 - 50 psi
600 HP 25 in - 30 in PC PC 52 - 54 psi 52 - 54 psi 37 - 39 psi 36 - 38 psi 35 - 38 psi 35 - 37 psi
600 HP 30 in PC PC 43 - 52 psi 43 - 52 psi 28 - 37 psi 27 - 36 psi 27 - 35 psi 26 - 35 psi
600 HP 40 in PC PC 37 - 43 psi 37 - 43 psi 22 - 28 psi 21 - 27 psi 20 - 27 psi 20 - 26 psi
700 HP 20 in - 30 in BB PC 110 - 150 psi 107 - 150 psi 87 - 131 psi 86 - 130 psi 86 - 129 psi 86 - 128 psi
700 HP 20 in - 30 in PC PC 113 - 150 psi 110 - 150 psi 90 - 135 psi 89 - 134 psi 89 - 134 psi 89 - 133 psi
700 HP 25 in - 30 in PC PC 71 - 90 psi 68 - 90 psi 48 - 50 psi 47 - 50 psi 47 - 50 psi 46 - 50 psi
700 HP 30 in PC PC 60 - 71 psi 57 - 68 psi 36 - 48 psi 36 - 47 psi 35 - 47 psi 35 - 46 psi
700 HP 40 in PC PC 51 - 60 psi 48 - 57 psi 28 - 36 psi 27 - 36 psi 27 - 35 psi 26 - 35 psi
800 HP 20 in - 30 in BB PC 108 - 150 psi 107 - 150 psi 106 - 150 psi
800 HP 20 in - 30 in PC PC 112 - 150 psi 111 - 150 psi 110 - 150 psi800 HP 25 in - 30 in PC PC 61 - 90 psi 60 - 100 psi 59 - 100 psi
800 HP 30 in PC PC 48 - 61 psi 47 - 50 psi 46 - 50 psi
800 HP 40 in PC PC 35 - 48 psi 34 - 47 psi 34 - 46 psi
Standard Gas Train size is highlighted
Table A1-21 Standard Undersize and Oversize Gas Trains (Continued)
CBLE
BOILER HP GAS TRAINSIZE
UPSTREAMVALVE
DOWNSTREAMVALVE
EMISSIONS LEVEL 09 ppm 15 ppm 20 ppm 30 ppm 60 ppm UC
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Model CBLE 125-800 HP Boilers
32
ALTITUDE(FT)
CORRECTIONFACTOR
ALTITUDE(FT)
CORRECTIONFACTOR
1000 104 6000 1252000 107 7000 130
3000 111 8000 135
4000 116 9000 140
5000 121 - -
To obtain minimum required gas pressure at altitudesabove 700 feet multiply the pressure by the listed factorsInches WC x 0577 = ozsq-inOzsq-in x 1732 = Inches WCInches WC x 00361= psigOzsq-in x 00625 = psigPsig x 2771 = Inches WCPsig x 160 = Ozsq-in
Table A1-22 Minimum Required Regulated Gas Pressure
Altitude Conversion
BOILERHP
TYPE OF GAS AND HEAT CONTENT
NATURAL GAS1000 (Btucu-ft)
PROPANE GAS2550 (Btucu-ft)
125 5103 2000
150 6124 2402
200 8165 3202
250 10206 4002
300 12247 4802
350 14280 5600
400 16329 6404
500 20415 8006
600 24494 9605
700 28576 11206
800 32659 12807
Table A1-23 Maximum Gas Consumption (CFH)
for Natural Gas and Propane Vapor
BOILER
HP
MODEL CB
CONNECTION SIZE
(IN NPT)
LOCATIONDIMENSION
ldquoArdquo (IN)
125-200 1-12 52
250-350 2 56
400 2 58
500 2-12 60
600 2-12 - 3 71
700-800 3 65
Figure A1-13 Standard Gas Train Connection Size and Location
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Model CBLE 125-800 HP Boilers
33
Oil-Fired Burners Fuel oil consumption information is shown on the boiler rating sheets in theDimensions and Rating Section
Figure A1-16 shows the oil connection sizes and locations for Model CB Boilersfiring No 2 oil
Figure A1-17 through Figure A1-18 show typical oil systems and layouts
Figure A1-19 and Figure A1-20 show the detail of an oil transfer tank (day tank)typically utilized to provide a storage reservoir between the oil system supply pumpand the boiler oil pump
General BoilerInformation
Table A1-24 shows blowdown tank sizing information
Table A1-25 provides heating surface information
Table A1-26 provides steam volume and disengaging area information
Table A1-27 provides recommended steam nozzle sizes
Table A1-28 provides recommended non-return valve sizes
Boiler RoomInformation
Figure A1-21 shows typical boiler room length requirements
Figure A1-22 shows typical boiler room width requirements
Figure A1-23 shows typical breeching arrangements
Stack SupportCapabilities
All standard Cleaver-Brooks Firetube Boilers with an LE option can support up to2000 lbs without additional support
LE Boilers 250 hp through 800 hp can be reinforced to support 3000 lbs
StackBreechingSize Criteria
The design of the stack and breeching must provide the required draft at each boilerflue gas outlet Proper draft is critical to burner performance
Although constant pressure at the flue gas outlet of the Model CB-LE is not requiredit is necessary to size the stackbreeching to limit flue gas pressure variation Theallowable pressure range is ndash025 WC to +025 WC
For additional information please review Section I4 General Engineering Data(Stacks) and Section F Stacks Stack and breeching sizes should always be providedby a reputable stack supplier who will design the stack and breeching system basedon the above criteria Your local Cleaver-Brooks authorized representative is capableof assisting in your evaluation of the stackbreeching design
Boiler RoomCombustion Air
When determining boiler room air requirements the size of the room air flow andvelocity of air must be reviewed as follows
1 Size (area) and location of air supply openings in boiler room
A Two (2) permanent air supply openings in the outer walls of the boiler room
are recommended Locate (1) at each end of the boiler room preferablybelow a height of 7 feet This allows air to sweep the length of the boiler
B Air supply openings can be louvered for weather protection but they shouldnot be covered with fine mesh wire as this type of covering has poor air flowqualities and is subject to clogging by dust or dirt
C A vent fan in the boiler room is not recommended as it could create a slightvacuum under certain conditions and cause variations in the quantity ofcombustion air This can result in unsatisfactory burner performance
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Model CBLE 125-800 HP Boilers
34
D Under no condition should the total area of the air supply openings be lessthan (1) square foot
E Size the openings by using the formulaArea (sq-ft) = CFMFPM
2 Amount of air required (cfm)
A Combustion Air = Rated bhp x 8 cfmbhp
B Ventilation Air = Maximum bhp x 2 cfmbhp
C Total recommended air = 10 cfmbhp - up to 1000 feet elevation Add 3percent more per 1000 feet of added elevation
3 Acceptable air velocity in Boiler Room (fpm)
A From floor to (7) foot height - 250 fpm
B Above (7) foot height - 500 fpm
Example Determine the area of the boiler room air supply openings for (1) 300 hpboiler at 800 feet altitude The air openings are to be 5 feet above floor level
bull Air required 300 x 10 = 3000 cfm (from 2B above)
bull Air velocity Up to 7 feet = 250 fpm (from 3 above)
bull Area Required Area = cfm = 3000250 = 12 sq-ft total
bull AreaOpening 122 = 6 sq-ftopening (2 required)
Notice
Consult local codes which may supersede these requirements
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Model CBLE 125-800 HP Boilers
35
This figure illustrates the basic gas valve arrangement on Cleaver-BrooksModel CB boiler and shows the contractors connection point The valves andcontrols between the contractor connection point and the gas main in thestreet are representative of a typical installation Actual requirements mayvary depending on local codes or local gas company requirements which
should be investigated prior to preparation of specifications and prior to con-struction
A Utilities service valveB Utilities service regulatorC Gas meterD Piping from meter to boiler
The size of the gas line from the meter to the gas pressure regulator at theboiler can be very important if gas pressures are marginal The gas line sizingis dependent on
1 Gas pressure at outlet of gas meter (C)2 Rate of gas flow required CFH3 Length of pipe run (D)4 Pressure required at contractor connection point
The local gas utility will advise the pressure that is available at the outlet oftheir meter
Figure A1-14 Typical Gas Piping Layout
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Model CBLE 125-800 HP Boilers
36
5
6
S
1
3
42
PILOT GAS LINE
S
S
MAIN GAS LINE
M M
ToBurner
GasSupply
11
10
97
12138
14 15
FLOW
FLOW
Figure A1-15 Model CB-LE Gas Train Components
BOILER
HP
MODEL CB
SUPPLYANDRE-
TURNCONN SIZES
(IN)(NPT)
A(IN)
RECOMMENDED OIL LINEA
SIZES(STANDARD PIPE)
(IN - IPS)
STOR-AGE
TANK TOBOILER
OR PUMPCONNECT
PUMPTO
BOILER
RE-TURN
LINE TOTANK
125150 200
34 12-12 1 1 1
250300350
34 34 1 1 1
400500600
34 11-34 1 1 1
700800
1 11-34 1 1 1
NOTE See No 2 Oil Line Sizing Instruction for systems with other conditions A For suction line condition with a maximum of 10 Feet of lift and a
total of 100 feet of suction line
Figure A1-16 No2 Oil Connection Size Location and Recommended Line Sizes
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Model CBLE 125-800 HP Boilers
37
Figure A1-17 No 2 Oil Piping Single Boiler
Installation Remote Oil Pump
Figure A1-18 No 2 Oil Piping Multiple Boiler
Installation Remote Oil Pumps
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
38
Figure A1-19 No 2 Oil Piping Multiple Boiler
Installation
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
39
Figure A1-20 No 2 Oil Piping Typical Arrangement
Table A1-24 Model CB-LE Blowdown
Tank Sizing
BOILER HP WATER (GAL)
125 97
150 118
200 145
250 146
300 176
350 210
400 177
500 209
600 250
700 800 296
NOTE Quantity of water removed from boiler by lowering normal water line 4
BOILER
HP
HEATING SURFACE (SQ-FT)
FIRESIDE WATERSIDE
125 625 679
150 750 820
200 1000 1092
250 1250 1346
300 1500 1623
350 1750 1932
400 2000 2151
500 2500 2691
600 3000 3262
700 800 3500 3810
Table A1-25 Heating Surface Model CB-LE
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Model CBLE 125-800 HP Boilers
40
BOILER HPSTEAM VOLUME CU-FT
STEAM DISENGAGING AREASQ-IN
HIGH PRESSUREA LOW PRESSUREB HIGH PRESSUREA LOW PRESSUREB
125 254 366 5371 5887
150 307 443 6511 7138
200 377 544 7985 8752
250 492 706 7980 8695
300 595 853 9651 10516
350 709 1017 11507 12538
400 721 979 9793 10593
500 837 1137 11376 12303
600 1015 1378 13787 14911
700-800 1198 1627 16273 17600
NOTE Based on normal water levelA Based on 150 psig design pressureB Based on 15 psig design pressure
Table A1-26 Steam Volume and Disengaging Area
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Model CBLE 125-800 HP Boilers
41
BOILERHP
BOILERCAPACITY(LBSHR)
OPERATING PRESSURES (PSIG)
50 75 100 125 150 175 200 250
100 3450
2-12 2-12 NA NA NA NA NA NA
125 4313 3 2-12 2-12 2-12 NA NA NA NA
150 5175 3 3 2-12 2-12 2-12 2-12 NA NA
200 6900 3 3 3 3 3 2-12 2-12 2-12
250 8625 4 3 3 3 3 3 3 3
300 10350 4 4 4 3 3 3 3 3
350 12025 4 4 4 4 4 3 3 3
400 13800 5 4 4 4 4 4 4 3
500 17210 6 5 5 4 4 4 4 4
600 20700 6 6 5 5 5 4 4 4
700 24150 6 6 6 5 5 5 5 4
800 27600 6 6 6 6 6 5 5 5
NOTE Valve sizes (300 Flanges) given in inchesStandard Non-Return valve selections limited to a maximum 2 to 1 turndown(50 of full load) selections based on typical non-return valve sizing recommen-dations For final valve selection contact your C-B authorized representative Forhigh turndown applications see Boiler Book Section I3 Table I3-3 Indicates pressure drop of less than 75 psig All other selections are less than6 psig pressure drop
Boiler HP
OPERATINGPRESSURE
PSIG125 150 200 250 300 350 400 500 600 700 800
15 8 8 10 10 12 12 12 12 12 12 12
30 6 6 8 8 8 10 10 10 12 12 12
40 6 6 6 8 8 8 10 10 10 12 12
50 6 6 6 6 8 8 8 10 10 10 12
75 4 4 6 6 6 8 8 8 8 10 10
100 4 4 6 6 6 6 6 8 8 8 10
125 4 4 4 6 6 6 6 8 8 8 8
150 3 3 4 4 6 6 6 6 6 8 8
200 25 3 4 4 4 4 6 6 6 6 6
250 25 3 3 4 4 4 4 6 6 6 6
NOTES1 Steam nozzle sizes given in inches2 Recommended steam nozzle sizes based on 4000 to 5000 fpm steam velocity3 All standard steam nozzle sizes for 150 psig design pressure or greater are the sameas 125 psig operating pressure on the above table To increase or decrease the standardsize request the change with your local Cleaver-Brooks authorized representative4 Shaded area denotes special surge load baffles must be installed to avoid possible wa-ter carry-over5 For incremental operating pressures see Table I3-1 Steam Systems Fundamentals
Table A1-28 Recommended Steam Nozzle Size (for
4000 to 5000 fpm nozzle velocity)
Table A1-29 Recommended Non-Return Valve Size
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Model CBLE 125-800 HP Boilers
42
1 Shortest boiler room length (Dwg A) is obtained by allowing for possible future tube replacement (from front or rearof boiler) through a window or doorway Allowance is only made for minimum door swing at each end of the boilerThis arrangement provides sufficient aisle space at the front of the boiler but a ldquotightrdquo space condition at the rear
If space permits approximately 15 additional feet should be allowed at the rear for additional aisle and workingspace
2 Next shortest boiler room length (Dwg B) is obtained by allowing for possible future tube replacement from thefront of the boiler Allowance is only made for minimum door swing at the rear
If space permits approximately 15 additional feet should be allowed at the rear for additional aisle and workingspace
3 A slightly longer boiler room (Dwg C) is obtained by allowing for possible future tube replacement from the rear ofthe boiler Allowance for door swing at the front provides sufficient aisle and working space at the front
Figure A1-21 Boiler Room Length (Typical Layouts)
BOILER HP 125-200 250-350 400-800
Dimension A 82 93 102
Dimension B 115 141 171
NOTES1 Recommended Minimum Distance Between Boiler and Wall Dimen-
sion ldquoArdquo allows for a ldquoclearrdquo 42 aisle between the water col-umn on the boiler and the wall If space permits this aisle
should be widened 2 Recommended Minimum Distance Between BoilersDimension ldquoBrdquo between boilers allows for a ldquoclearrdquo aisle of42 - 125 -200 hp48 - 250-350 hp60 - 400-800 hpIf space permits this aisle should be widened
Figure A1-22 Boiler Room Width (Typical Layout)
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 4343
Model CBLE 125-800 HP Boilers
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 3043
Model CBLE 125-800 HP Boilers
30
Table A1-21 Standard Undersize and Oversize Gas Trains
CBLE
BOILER HP GAS TRAINSIZE
UPSTREAMVALVE
DOWNSTREAMVALVE
EMISSIONS LEVEL 09 ppm 15 ppm 20 ppm 30 ppm 60 ppm UC
125 HP 15 in BB BB 33 - 49 psi 33 - 49 psi 08 - 50 psi 07 - 50 psi 07 - 50 psi 07 - 50 ps
125 HP 15 in PC PC 34 - 50 psi 34 - 50 psi 09 - 50 psi 08 - 50 psi 08 - 50 psi 08 - 50 ps
125 HP 20 in BB BB 31 - 33 psi 31 - 33 psi 06 - 08 psi 06 - 07 psi 05 - 07 psi 05 - 07 ps
125 HP 20 in PC PC 31 - 34 psi 31 - 34 psi 06 - 09 psi 06 - 08 psi 06 - 08 psi 05 - 08 ps
125 HP 25 in PC PC 30 - 31 psi 30 - 31 psi 04 - 06 psi 04 - 06 psi 04 - 05 psi 04 - 05 ps
125 HP 30 in PC PC 29 - 30 psi 29 - 30 psi 04 - 04 psi 04 - 04 psi 04 - 04 psi 03 - 04 ps
125 HP 40 in PC PC 29 - 29 psi 29 - 29 psi 04 - 04 psi 03 - 04 psi 03 - 04 psi 03 - 03 ps
150 HP 15 in BB BB 37 - 55 psi 39 - 58 psi 10 - 47 psi 09 - 50 psi 09 - 50 psi 09 - 50 ps
150 HP 15 in PC PC 38 - 57 psi 40 - 60 psi 11 - 42 psi 11 - 50 psi 10 - 50 psi 10 - 50 ps
150 HP 20 in BB BB 34 - 37 psi 36 - 39 psi 07 - 10 psi 06 - 09 psi 06 - 09 psi 06 - 09 ps
150 HP 20 in PC PC 34 - 38 psi 36 - 40 psi 07 - 11 psi 07 - 11 psi 07 - 10 psi 06 - 10 ps
150 HP 25 in PC PC 32 - 34 psi 34 - 36 psi 05 - 07 psi 04 - 06 psi 04 - 06 psi 04 - 06 ps
150 HP 30 in PC PC 32 - 32 psi 34 - 34 psi 04 - 05 psi 04 - 04 psi 04 - 04 psi 03 - 04 ps
150 HP 40 in PC PC 31 - 32 psi 33 - 34 psi 04 - 04 psi 03 - 04 psi 03 - 04 psi 03 - 03 ps
200 HP 15 in BB BB 46 - 69 psi 50 - 75 psi 16 - 50 psi 15 - 50 psi 15 - 50 ps
200 HP 15 in PC PC 48 - 72 psi 52 - 78 psi 18 - 50 psi 17 - 50 psi 17 - 50 ps
200 HP 20 in BB BB 41 - 46 psi 45 - 50 psi 10 - 16 psi 10 - 15 psi 10 - 15 ps
200 HP 20 in PC PC 41 - 48 psi 45 - 52 psi 11 - 18 psi 11 - 17 psi 10 - 17 ps
200 HP 25 in PC PC 38 - 41 psi 42 - 45 psi 07 - 10 psi 07 - 10 psi 06 - 10 ps
200 HP 30 in PC PC 36 - 38 psi 40 - 42 psi 06 - 07 psi 05 - 07 psi 05 - 06 ps
200 HP 40 in PC PC 36 - 36 psi 40 - 40 psi 05 - 06 psi 05 - 05 psi 04 - 05 ps
250 HP 15 in BB BB 41 - 62 psi 44 - 67 psi 24 - 50 psi 24 - 27 psi 24 - 26 psi 23 - 26 ps
250 HP 15 in PC PC 45 - 67 psi 48 - 72 psi 28 - 50 psi 27 - 28 psi 27 - 27 psi 27 - 27 ps
250 HP 20 in BB BB 33 - 38 psi 37 - 41 psi 16 - 24 psi 16 - 24 psi 16 - 24 psi 15 - 23 ps
250 HP 20 in PC PC 34 - 40 psi 37 - 43 psi 17 - 28 psi 17 - 27 psi 16 - 27 psi 16 - 27 ps
250 HP 25 in PC PC 29 - 33 psi 32 - 37 psi 11 - 16 psi 11 - 16 psi 11 - 16 psi 10 - 15 ps
250 HP 30 in PC PC 27 - 29 psi 31 - 32 psi 09 - 11 psi 09 - 11 psi 09 - 11 psi 09 - 10 ps
250 HP 40 in PC PC 26 - 27 psi 29 - 31 psi 08 - 09 psi 08 - 09 psi 08 - 09 psi 08 - 09 ps
300 HP 15 in - 20 in BB BB 55 - 83 psi 57 - 85 psi 30 - 50 psi 30 - 36 psi 30 - 35 psi 30 - 35 ps
300 HP 15 in - 20 in PC PC 58 - 87 psi 60 - 90 psi 33 - 50 psi 33 - 37 psi 33 - 36 psi 33 - 36 ps
300 HP 20 in BB BB 46 - 55 psi 47 - 57 psi 21 - 30 psi 21 - 30 psi 20 - 30 psi 20 - 30 ps
300 HP 20 in PC PC 47 - 58 psi 48 - 60 psi 22 - 33 psi 22 - 33 psi 21 - 33 psi 21 - 33 ps
300 HP 30 in PC PC 39 - 46 psi 40 - 47 psi 13 - 21 psi 13 - 21 psi 12 - 20 psi 12 - 20 ps
300 HP 40 in PC PC 37 - 39 psi 39 - 40 psi 11 - 13 psi 11 - 13 psi 10 - 12 psi 10 - 12 ps
350 HP 15 in - 20 in BB BB 64 - 90 psi 62 - 90 psi 42 - 50 psi 42 - 50 psi 41 - 50 psi 41 - 50 ps
350 HP 15 in - 20 in PC PC 68 - 90 psi 66 - 90 psi 46 - 50 psi 46 - 50 psi 45 - 50 psi 45 - 50 ps
350 HP 20 in BB BB 54 - 64 psi 53 - 62 psi 32 - 42 psi 32 - 42 psi 32 - 41 psi 31 - 41 ps
350 HP 20 in PC PC 56 - 68 psi 54 - 66 psi 34 - 46 psi 34 - 46 psi 33 - 45 psi 33 - 45 ps
350 HP 25 in PC PC 43 - 54 psi 42 - 53 psi 21 - 32 psi 21 - 32 psi 20 - 32 psi 20 - 31 ps
350 HP 30 in PC PC 40 - 43 psi 38 - 42 psi 17 - 21 psi 17 - 21 psi 17 - 20 psi 16 - 20 ps
350 HP 40 in PC PC 37 - 40 psi 36 - 38 psi 15 - 17 psi 15 - 17 psi 14 - 17 psi 14 - 16 ps
400 HP 15 in - 20 in BB BB 69 - 90 psi 69 - 90 psi 46 - 50 psi 46 - 50 psi 45 - 50 psi 45 - 50 ps
400 HP 15 in - 20 in PC PC 74 - 90 psi 75 - 90 psi 51 - 87 psi 51 - 77 psi 51 - 77 psi 51 - 77 ps
400 HP 20 in BB BB 55 - 69 psi 56 - 69 psi 32 - 46 psi 32 - 46 psi 32 - 45 psi 32 - 45 ps
400 HP 20 in PC PC 57 - 74 psi 58 - 75 psi 34 - 50 psi 34 - 50 psi 34 - 50 psi 34 - 50 ps
400 HP 25 in PC PC 41 - 55 psi 42 - 56 psi 18 - 32 psi 18 - 32 psi 18 - 32 psi 18 - 32 ps
400 HP 30 in PC PC 37 - 41 psi 38 - 42 psi 13 - 18 psi 13 - 18 psi 13 - 18 psi 13 - 18 ps
400 HP 40 in PC PC 34 - 37 psi 35 - 38 psi 11 - 13 psi 10 - 13 psi 10 - 13 psi 10 - 13 ps
500 HP 20 in - 25 in BB PC 58 - 76 psi 58 - 76 psi 46 - 50 psi 46 - 50 psi 45 - 50 psi 45 - 50 ps
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 3143
Model CBLE 125-800 HP Boilers
31
BB = Butter Ball PC = Plug Cock
NOTE In cases where the gas train increases in size after the regulating valve two diameters are listed The first number is the customer connection size
500 HP 20 in - 25 in PC PC 60 - 83 psi 60 - 83 psi 48 - 50 psi 47 - 50 psi 47 - 50 psi 47 - 50 psi
500 HP 25 in PC PC 39 - 58 psi 39 - 58 psi 27 - 46 psi 27 - 46 psi 27 - 45 psi 26 - 45 psi
500 HP 30 in PC PC 33 - 39 psi 33 - 39 psi 20 - 27 psi 20 - 27 psi 20 - 27 psi 20 - 26 psi
500 HP 40 in PC PC 28 - 33 psi 28 - 33 psi 16 - 20 psi 16 - 20 psi 15 - 20 psi 15 - 20 psi
600 HP 20 in - 25 in BB PC 80 - 90 psi 80 - 90 psi 65 - 90 psi 65 - 90 psi 64 - 89 psi 63 - 88 psi
600 HP 20 in - 25 in PC PC 82 - 90 psi 82 - 90 psi 67 - 100 psi 67 - 100 psi 66 - 99 psi 66 - 99 psi
600 HP 25 in PC PC 54 - 80 psi 54 - 80 psi 39 - 50 psi 38 - 50 psi 38 - 50 psi 37 - 50 psi
600 HP 25 in - 30 in PC PC 52 - 54 psi 52 - 54 psi 37 - 39 psi 36 - 38 psi 35 - 38 psi 35 - 37 psi
600 HP 30 in PC PC 43 - 52 psi 43 - 52 psi 28 - 37 psi 27 - 36 psi 27 - 35 psi 26 - 35 psi
600 HP 40 in PC PC 37 - 43 psi 37 - 43 psi 22 - 28 psi 21 - 27 psi 20 - 27 psi 20 - 26 psi
700 HP 20 in - 30 in BB PC 110 - 150 psi 107 - 150 psi 87 - 131 psi 86 - 130 psi 86 - 129 psi 86 - 128 psi
700 HP 20 in - 30 in PC PC 113 - 150 psi 110 - 150 psi 90 - 135 psi 89 - 134 psi 89 - 134 psi 89 - 133 psi
700 HP 25 in - 30 in PC PC 71 - 90 psi 68 - 90 psi 48 - 50 psi 47 - 50 psi 47 - 50 psi 46 - 50 psi
700 HP 30 in PC PC 60 - 71 psi 57 - 68 psi 36 - 48 psi 36 - 47 psi 35 - 47 psi 35 - 46 psi
700 HP 40 in PC PC 51 - 60 psi 48 - 57 psi 28 - 36 psi 27 - 36 psi 27 - 35 psi 26 - 35 psi
800 HP 20 in - 30 in BB PC 108 - 150 psi 107 - 150 psi 106 - 150 psi
800 HP 20 in - 30 in PC PC 112 - 150 psi 111 - 150 psi 110 - 150 psi800 HP 25 in - 30 in PC PC 61 - 90 psi 60 - 100 psi 59 - 100 psi
800 HP 30 in PC PC 48 - 61 psi 47 - 50 psi 46 - 50 psi
800 HP 40 in PC PC 35 - 48 psi 34 - 47 psi 34 - 46 psi
Standard Gas Train size is highlighted
Table A1-21 Standard Undersize and Oversize Gas Trains (Continued)
CBLE
BOILER HP GAS TRAINSIZE
UPSTREAMVALVE
DOWNSTREAMVALVE
EMISSIONS LEVEL 09 ppm 15 ppm 20 ppm 30 ppm 60 ppm UC
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Model CBLE 125-800 HP Boilers
32
ALTITUDE(FT)
CORRECTIONFACTOR
ALTITUDE(FT)
CORRECTIONFACTOR
1000 104 6000 1252000 107 7000 130
3000 111 8000 135
4000 116 9000 140
5000 121 - -
To obtain minimum required gas pressure at altitudesabove 700 feet multiply the pressure by the listed factorsInches WC x 0577 = ozsq-inOzsq-in x 1732 = Inches WCInches WC x 00361= psigOzsq-in x 00625 = psigPsig x 2771 = Inches WCPsig x 160 = Ozsq-in
Table A1-22 Minimum Required Regulated Gas Pressure
Altitude Conversion
BOILERHP
TYPE OF GAS AND HEAT CONTENT
NATURAL GAS1000 (Btucu-ft)
PROPANE GAS2550 (Btucu-ft)
125 5103 2000
150 6124 2402
200 8165 3202
250 10206 4002
300 12247 4802
350 14280 5600
400 16329 6404
500 20415 8006
600 24494 9605
700 28576 11206
800 32659 12807
Table A1-23 Maximum Gas Consumption (CFH)
for Natural Gas and Propane Vapor
BOILER
HP
MODEL CB
CONNECTION SIZE
(IN NPT)
LOCATIONDIMENSION
ldquoArdquo (IN)
125-200 1-12 52
250-350 2 56
400 2 58
500 2-12 60
600 2-12 - 3 71
700-800 3 65
Figure A1-13 Standard Gas Train Connection Size and Location
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Model CBLE 125-800 HP Boilers
33
Oil-Fired Burners Fuel oil consumption information is shown on the boiler rating sheets in theDimensions and Rating Section
Figure A1-16 shows the oil connection sizes and locations for Model CB Boilersfiring No 2 oil
Figure A1-17 through Figure A1-18 show typical oil systems and layouts
Figure A1-19 and Figure A1-20 show the detail of an oil transfer tank (day tank)typically utilized to provide a storage reservoir between the oil system supply pumpand the boiler oil pump
General BoilerInformation
Table A1-24 shows blowdown tank sizing information
Table A1-25 provides heating surface information
Table A1-26 provides steam volume and disengaging area information
Table A1-27 provides recommended steam nozzle sizes
Table A1-28 provides recommended non-return valve sizes
Boiler RoomInformation
Figure A1-21 shows typical boiler room length requirements
Figure A1-22 shows typical boiler room width requirements
Figure A1-23 shows typical breeching arrangements
Stack SupportCapabilities
All standard Cleaver-Brooks Firetube Boilers with an LE option can support up to2000 lbs without additional support
LE Boilers 250 hp through 800 hp can be reinforced to support 3000 lbs
StackBreechingSize Criteria
The design of the stack and breeching must provide the required draft at each boilerflue gas outlet Proper draft is critical to burner performance
Although constant pressure at the flue gas outlet of the Model CB-LE is not requiredit is necessary to size the stackbreeching to limit flue gas pressure variation Theallowable pressure range is ndash025 WC to +025 WC
For additional information please review Section I4 General Engineering Data(Stacks) and Section F Stacks Stack and breeching sizes should always be providedby a reputable stack supplier who will design the stack and breeching system basedon the above criteria Your local Cleaver-Brooks authorized representative is capableof assisting in your evaluation of the stackbreeching design
Boiler RoomCombustion Air
When determining boiler room air requirements the size of the room air flow andvelocity of air must be reviewed as follows
1 Size (area) and location of air supply openings in boiler room
A Two (2) permanent air supply openings in the outer walls of the boiler room
are recommended Locate (1) at each end of the boiler room preferablybelow a height of 7 feet This allows air to sweep the length of the boiler
B Air supply openings can be louvered for weather protection but they shouldnot be covered with fine mesh wire as this type of covering has poor air flowqualities and is subject to clogging by dust or dirt
C A vent fan in the boiler room is not recommended as it could create a slightvacuum under certain conditions and cause variations in the quantity ofcombustion air This can result in unsatisfactory burner performance
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Model CBLE 125-800 HP Boilers
34
D Under no condition should the total area of the air supply openings be lessthan (1) square foot
E Size the openings by using the formulaArea (sq-ft) = CFMFPM
2 Amount of air required (cfm)
A Combustion Air = Rated bhp x 8 cfmbhp
B Ventilation Air = Maximum bhp x 2 cfmbhp
C Total recommended air = 10 cfmbhp - up to 1000 feet elevation Add 3percent more per 1000 feet of added elevation
3 Acceptable air velocity in Boiler Room (fpm)
A From floor to (7) foot height - 250 fpm
B Above (7) foot height - 500 fpm
Example Determine the area of the boiler room air supply openings for (1) 300 hpboiler at 800 feet altitude The air openings are to be 5 feet above floor level
bull Air required 300 x 10 = 3000 cfm (from 2B above)
bull Air velocity Up to 7 feet = 250 fpm (from 3 above)
bull Area Required Area = cfm = 3000250 = 12 sq-ft total
bull AreaOpening 122 = 6 sq-ftopening (2 required)
Notice
Consult local codes which may supersede these requirements
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Model CBLE 125-800 HP Boilers
35
This figure illustrates the basic gas valve arrangement on Cleaver-BrooksModel CB boiler and shows the contractors connection point The valves andcontrols between the contractor connection point and the gas main in thestreet are representative of a typical installation Actual requirements mayvary depending on local codes or local gas company requirements which
should be investigated prior to preparation of specifications and prior to con-struction
A Utilities service valveB Utilities service regulatorC Gas meterD Piping from meter to boiler
The size of the gas line from the meter to the gas pressure regulator at theboiler can be very important if gas pressures are marginal The gas line sizingis dependent on
1 Gas pressure at outlet of gas meter (C)2 Rate of gas flow required CFH3 Length of pipe run (D)4 Pressure required at contractor connection point
The local gas utility will advise the pressure that is available at the outlet oftheir meter
Figure A1-14 Typical Gas Piping Layout
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Model CBLE 125-800 HP Boilers
36
5
6
S
1
3
42
PILOT GAS LINE
S
S
MAIN GAS LINE
M M
ToBurner
GasSupply
11
10
97
12138
14 15
FLOW
FLOW
Figure A1-15 Model CB-LE Gas Train Components
BOILER
HP
MODEL CB
SUPPLYANDRE-
TURNCONN SIZES
(IN)(NPT)
A(IN)
RECOMMENDED OIL LINEA
SIZES(STANDARD PIPE)
(IN - IPS)
STOR-AGE
TANK TOBOILER
OR PUMPCONNECT
PUMPTO
BOILER
RE-TURN
LINE TOTANK
125150 200
34 12-12 1 1 1
250300350
34 34 1 1 1
400500600
34 11-34 1 1 1
700800
1 11-34 1 1 1
NOTE See No 2 Oil Line Sizing Instruction for systems with other conditions A For suction line condition with a maximum of 10 Feet of lift and a
total of 100 feet of suction line
Figure A1-16 No2 Oil Connection Size Location and Recommended Line Sizes
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Model CBLE 125-800 HP Boilers
37
Figure A1-17 No 2 Oil Piping Single Boiler
Installation Remote Oil Pump
Figure A1-18 No 2 Oil Piping Multiple Boiler
Installation Remote Oil Pumps
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
38
Figure A1-19 No 2 Oil Piping Multiple Boiler
Installation
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
39
Figure A1-20 No 2 Oil Piping Typical Arrangement
Table A1-24 Model CB-LE Blowdown
Tank Sizing
BOILER HP WATER (GAL)
125 97
150 118
200 145
250 146
300 176
350 210
400 177
500 209
600 250
700 800 296
NOTE Quantity of water removed from boiler by lowering normal water line 4
BOILER
HP
HEATING SURFACE (SQ-FT)
FIRESIDE WATERSIDE
125 625 679
150 750 820
200 1000 1092
250 1250 1346
300 1500 1623
350 1750 1932
400 2000 2151
500 2500 2691
600 3000 3262
700 800 3500 3810
Table A1-25 Heating Surface Model CB-LE
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Model CBLE 125-800 HP Boilers
40
BOILER HPSTEAM VOLUME CU-FT
STEAM DISENGAGING AREASQ-IN
HIGH PRESSUREA LOW PRESSUREB HIGH PRESSUREA LOW PRESSUREB
125 254 366 5371 5887
150 307 443 6511 7138
200 377 544 7985 8752
250 492 706 7980 8695
300 595 853 9651 10516
350 709 1017 11507 12538
400 721 979 9793 10593
500 837 1137 11376 12303
600 1015 1378 13787 14911
700-800 1198 1627 16273 17600
NOTE Based on normal water levelA Based on 150 psig design pressureB Based on 15 psig design pressure
Table A1-26 Steam Volume and Disengaging Area
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Model CBLE 125-800 HP Boilers
41
BOILERHP
BOILERCAPACITY(LBSHR)
OPERATING PRESSURES (PSIG)
50 75 100 125 150 175 200 250
100 3450
2-12 2-12 NA NA NA NA NA NA
125 4313 3 2-12 2-12 2-12 NA NA NA NA
150 5175 3 3 2-12 2-12 2-12 2-12 NA NA
200 6900 3 3 3 3 3 2-12 2-12 2-12
250 8625 4 3 3 3 3 3 3 3
300 10350 4 4 4 3 3 3 3 3
350 12025 4 4 4 4 4 3 3 3
400 13800 5 4 4 4 4 4 4 3
500 17210 6 5 5 4 4 4 4 4
600 20700 6 6 5 5 5 4 4 4
700 24150 6 6 6 5 5 5 5 4
800 27600 6 6 6 6 6 5 5 5
NOTE Valve sizes (300 Flanges) given in inchesStandard Non-Return valve selections limited to a maximum 2 to 1 turndown(50 of full load) selections based on typical non-return valve sizing recommen-dations For final valve selection contact your C-B authorized representative Forhigh turndown applications see Boiler Book Section I3 Table I3-3 Indicates pressure drop of less than 75 psig All other selections are less than6 psig pressure drop
Boiler HP
OPERATINGPRESSURE
PSIG125 150 200 250 300 350 400 500 600 700 800
15 8 8 10 10 12 12 12 12 12 12 12
30 6 6 8 8 8 10 10 10 12 12 12
40 6 6 6 8 8 8 10 10 10 12 12
50 6 6 6 6 8 8 8 10 10 10 12
75 4 4 6 6 6 8 8 8 8 10 10
100 4 4 6 6 6 6 6 8 8 8 10
125 4 4 4 6 6 6 6 8 8 8 8
150 3 3 4 4 6 6 6 6 6 8 8
200 25 3 4 4 4 4 6 6 6 6 6
250 25 3 3 4 4 4 4 6 6 6 6
NOTES1 Steam nozzle sizes given in inches2 Recommended steam nozzle sizes based on 4000 to 5000 fpm steam velocity3 All standard steam nozzle sizes for 150 psig design pressure or greater are the sameas 125 psig operating pressure on the above table To increase or decrease the standardsize request the change with your local Cleaver-Brooks authorized representative4 Shaded area denotes special surge load baffles must be installed to avoid possible wa-ter carry-over5 For incremental operating pressures see Table I3-1 Steam Systems Fundamentals
Table A1-28 Recommended Steam Nozzle Size (for
4000 to 5000 fpm nozzle velocity)
Table A1-29 Recommended Non-Return Valve Size
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Model CBLE 125-800 HP Boilers
42
1 Shortest boiler room length (Dwg A) is obtained by allowing for possible future tube replacement (from front or rearof boiler) through a window or doorway Allowance is only made for minimum door swing at each end of the boilerThis arrangement provides sufficient aisle space at the front of the boiler but a ldquotightrdquo space condition at the rear
If space permits approximately 15 additional feet should be allowed at the rear for additional aisle and workingspace
2 Next shortest boiler room length (Dwg B) is obtained by allowing for possible future tube replacement from thefront of the boiler Allowance is only made for minimum door swing at the rear
If space permits approximately 15 additional feet should be allowed at the rear for additional aisle and workingspace
3 A slightly longer boiler room (Dwg C) is obtained by allowing for possible future tube replacement from the rear ofthe boiler Allowance for door swing at the front provides sufficient aisle and working space at the front
Figure A1-21 Boiler Room Length (Typical Layouts)
BOILER HP 125-200 250-350 400-800
Dimension A 82 93 102
Dimension B 115 141 171
NOTES1 Recommended Minimum Distance Between Boiler and Wall Dimen-
sion ldquoArdquo allows for a ldquoclearrdquo 42 aisle between the water col-umn on the boiler and the wall If space permits this aisle
should be widened 2 Recommended Minimum Distance Between BoilersDimension ldquoBrdquo between boilers allows for a ldquoclearrdquo aisle of42 - 125 -200 hp48 - 250-350 hp60 - 400-800 hpIf space permits this aisle should be widened
Figure A1-22 Boiler Room Width (Typical Layout)
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
31
BB = Butter Ball PC = Plug Cock
NOTE In cases where the gas train increases in size after the regulating valve two diameters are listed The first number is the customer connection size
500 HP 20 in - 25 in PC PC 60 - 83 psi 60 - 83 psi 48 - 50 psi 47 - 50 psi 47 - 50 psi 47 - 50 psi
500 HP 25 in PC PC 39 - 58 psi 39 - 58 psi 27 - 46 psi 27 - 46 psi 27 - 45 psi 26 - 45 psi
500 HP 30 in PC PC 33 - 39 psi 33 - 39 psi 20 - 27 psi 20 - 27 psi 20 - 27 psi 20 - 26 psi
500 HP 40 in PC PC 28 - 33 psi 28 - 33 psi 16 - 20 psi 16 - 20 psi 15 - 20 psi 15 - 20 psi
600 HP 20 in - 25 in BB PC 80 - 90 psi 80 - 90 psi 65 - 90 psi 65 - 90 psi 64 - 89 psi 63 - 88 psi
600 HP 20 in - 25 in PC PC 82 - 90 psi 82 - 90 psi 67 - 100 psi 67 - 100 psi 66 - 99 psi 66 - 99 psi
600 HP 25 in PC PC 54 - 80 psi 54 - 80 psi 39 - 50 psi 38 - 50 psi 38 - 50 psi 37 - 50 psi
600 HP 25 in - 30 in PC PC 52 - 54 psi 52 - 54 psi 37 - 39 psi 36 - 38 psi 35 - 38 psi 35 - 37 psi
600 HP 30 in PC PC 43 - 52 psi 43 - 52 psi 28 - 37 psi 27 - 36 psi 27 - 35 psi 26 - 35 psi
600 HP 40 in PC PC 37 - 43 psi 37 - 43 psi 22 - 28 psi 21 - 27 psi 20 - 27 psi 20 - 26 psi
700 HP 20 in - 30 in BB PC 110 - 150 psi 107 - 150 psi 87 - 131 psi 86 - 130 psi 86 - 129 psi 86 - 128 psi
700 HP 20 in - 30 in PC PC 113 - 150 psi 110 - 150 psi 90 - 135 psi 89 - 134 psi 89 - 134 psi 89 - 133 psi
700 HP 25 in - 30 in PC PC 71 - 90 psi 68 - 90 psi 48 - 50 psi 47 - 50 psi 47 - 50 psi 46 - 50 psi
700 HP 30 in PC PC 60 - 71 psi 57 - 68 psi 36 - 48 psi 36 - 47 psi 35 - 47 psi 35 - 46 psi
700 HP 40 in PC PC 51 - 60 psi 48 - 57 psi 28 - 36 psi 27 - 36 psi 27 - 35 psi 26 - 35 psi
800 HP 20 in - 30 in BB PC 108 - 150 psi 107 - 150 psi 106 - 150 psi
800 HP 20 in - 30 in PC PC 112 - 150 psi 111 - 150 psi 110 - 150 psi800 HP 25 in - 30 in PC PC 61 - 90 psi 60 - 100 psi 59 - 100 psi
800 HP 30 in PC PC 48 - 61 psi 47 - 50 psi 46 - 50 psi
800 HP 40 in PC PC 35 - 48 psi 34 - 47 psi 34 - 46 psi
Standard Gas Train size is highlighted
Table A1-21 Standard Undersize and Oversize Gas Trains (Continued)
CBLE
BOILER HP GAS TRAINSIZE
UPSTREAMVALVE
DOWNSTREAMVALVE
EMISSIONS LEVEL 09 ppm 15 ppm 20 ppm 30 ppm 60 ppm UC
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Model CBLE 125-800 HP Boilers
32
ALTITUDE(FT)
CORRECTIONFACTOR
ALTITUDE(FT)
CORRECTIONFACTOR
1000 104 6000 1252000 107 7000 130
3000 111 8000 135
4000 116 9000 140
5000 121 - -
To obtain minimum required gas pressure at altitudesabove 700 feet multiply the pressure by the listed factorsInches WC x 0577 = ozsq-inOzsq-in x 1732 = Inches WCInches WC x 00361= psigOzsq-in x 00625 = psigPsig x 2771 = Inches WCPsig x 160 = Ozsq-in
Table A1-22 Minimum Required Regulated Gas Pressure
Altitude Conversion
BOILERHP
TYPE OF GAS AND HEAT CONTENT
NATURAL GAS1000 (Btucu-ft)
PROPANE GAS2550 (Btucu-ft)
125 5103 2000
150 6124 2402
200 8165 3202
250 10206 4002
300 12247 4802
350 14280 5600
400 16329 6404
500 20415 8006
600 24494 9605
700 28576 11206
800 32659 12807
Table A1-23 Maximum Gas Consumption (CFH)
for Natural Gas and Propane Vapor
BOILER
HP
MODEL CB
CONNECTION SIZE
(IN NPT)
LOCATIONDIMENSION
ldquoArdquo (IN)
125-200 1-12 52
250-350 2 56
400 2 58
500 2-12 60
600 2-12 - 3 71
700-800 3 65
Figure A1-13 Standard Gas Train Connection Size and Location
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
33
Oil-Fired Burners Fuel oil consumption information is shown on the boiler rating sheets in theDimensions and Rating Section
Figure A1-16 shows the oil connection sizes and locations for Model CB Boilersfiring No 2 oil
Figure A1-17 through Figure A1-18 show typical oil systems and layouts
Figure A1-19 and Figure A1-20 show the detail of an oil transfer tank (day tank)typically utilized to provide a storage reservoir between the oil system supply pumpand the boiler oil pump
General BoilerInformation
Table A1-24 shows blowdown tank sizing information
Table A1-25 provides heating surface information
Table A1-26 provides steam volume and disengaging area information
Table A1-27 provides recommended steam nozzle sizes
Table A1-28 provides recommended non-return valve sizes
Boiler RoomInformation
Figure A1-21 shows typical boiler room length requirements
Figure A1-22 shows typical boiler room width requirements
Figure A1-23 shows typical breeching arrangements
Stack SupportCapabilities
All standard Cleaver-Brooks Firetube Boilers with an LE option can support up to2000 lbs without additional support
LE Boilers 250 hp through 800 hp can be reinforced to support 3000 lbs
StackBreechingSize Criteria
The design of the stack and breeching must provide the required draft at each boilerflue gas outlet Proper draft is critical to burner performance
Although constant pressure at the flue gas outlet of the Model CB-LE is not requiredit is necessary to size the stackbreeching to limit flue gas pressure variation Theallowable pressure range is ndash025 WC to +025 WC
For additional information please review Section I4 General Engineering Data(Stacks) and Section F Stacks Stack and breeching sizes should always be providedby a reputable stack supplier who will design the stack and breeching system basedon the above criteria Your local Cleaver-Brooks authorized representative is capableof assisting in your evaluation of the stackbreeching design
Boiler RoomCombustion Air
When determining boiler room air requirements the size of the room air flow andvelocity of air must be reviewed as follows
1 Size (area) and location of air supply openings in boiler room
A Two (2) permanent air supply openings in the outer walls of the boiler room
are recommended Locate (1) at each end of the boiler room preferablybelow a height of 7 feet This allows air to sweep the length of the boiler
B Air supply openings can be louvered for weather protection but they shouldnot be covered with fine mesh wire as this type of covering has poor air flowqualities and is subject to clogging by dust or dirt
C A vent fan in the boiler room is not recommended as it could create a slightvacuum under certain conditions and cause variations in the quantity ofcombustion air This can result in unsatisfactory burner performance
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
34
D Under no condition should the total area of the air supply openings be lessthan (1) square foot
E Size the openings by using the formulaArea (sq-ft) = CFMFPM
2 Amount of air required (cfm)
A Combustion Air = Rated bhp x 8 cfmbhp
B Ventilation Air = Maximum bhp x 2 cfmbhp
C Total recommended air = 10 cfmbhp - up to 1000 feet elevation Add 3percent more per 1000 feet of added elevation
3 Acceptable air velocity in Boiler Room (fpm)
A From floor to (7) foot height - 250 fpm
B Above (7) foot height - 500 fpm
Example Determine the area of the boiler room air supply openings for (1) 300 hpboiler at 800 feet altitude The air openings are to be 5 feet above floor level
bull Air required 300 x 10 = 3000 cfm (from 2B above)
bull Air velocity Up to 7 feet = 250 fpm (from 3 above)
bull Area Required Area = cfm = 3000250 = 12 sq-ft total
bull AreaOpening 122 = 6 sq-ftopening (2 required)
Notice
Consult local codes which may supersede these requirements
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 3543
Model CBLE 125-800 HP Boilers
35
This figure illustrates the basic gas valve arrangement on Cleaver-BrooksModel CB boiler and shows the contractors connection point The valves andcontrols between the contractor connection point and the gas main in thestreet are representative of a typical installation Actual requirements mayvary depending on local codes or local gas company requirements which
should be investigated prior to preparation of specifications and prior to con-struction
A Utilities service valveB Utilities service regulatorC Gas meterD Piping from meter to boiler
The size of the gas line from the meter to the gas pressure regulator at theboiler can be very important if gas pressures are marginal The gas line sizingis dependent on
1 Gas pressure at outlet of gas meter (C)2 Rate of gas flow required CFH3 Length of pipe run (D)4 Pressure required at contractor connection point
The local gas utility will advise the pressure that is available at the outlet oftheir meter
Figure A1-14 Typical Gas Piping Layout
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
36
5
6
S
1
3
42
PILOT GAS LINE
S
S
MAIN GAS LINE
M M
ToBurner
GasSupply
11
10
97
12138
14 15
FLOW
FLOW
Figure A1-15 Model CB-LE Gas Train Components
BOILER
HP
MODEL CB
SUPPLYANDRE-
TURNCONN SIZES
(IN)(NPT)
A(IN)
RECOMMENDED OIL LINEA
SIZES(STANDARD PIPE)
(IN - IPS)
STOR-AGE
TANK TOBOILER
OR PUMPCONNECT
PUMPTO
BOILER
RE-TURN
LINE TOTANK
125150 200
34 12-12 1 1 1
250300350
34 34 1 1 1
400500600
34 11-34 1 1 1
700800
1 11-34 1 1 1
NOTE See No 2 Oil Line Sizing Instruction for systems with other conditions A For suction line condition with a maximum of 10 Feet of lift and a
total of 100 feet of suction line
Figure A1-16 No2 Oil Connection Size Location and Recommended Line Sizes
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
37
Figure A1-17 No 2 Oil Piping Single Boiler
Installation Remote Oil Pump
Figure A1-18 No 2 Oil Piping Multiple Boiler
Installation Remote Oil Pumps
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
38
Figure A1-19 No 2 Oil Piping Multiple Boiler
Installation
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
39
Figure A1-20 No 2 Oil Piping Typical Arrangement
Table A1-24 Model CB-LE Blowdown
Tank Sizing
BOILER HP WATER (GAL)
125 97
150 118
200 145
250 146
300 176
350 210
400 177
500 209
600 250
700 800 296
NOTE Quantity of water removed from boiler by lowering normal water line 4
BOILER
HP
HEATING SURFACE (SQ-FT)
FIRESIDE WATERSIDE
125 625 679
150 750 820
200 1000 1092
250 1250 1346
300 1500 1623
350 1750 1932
400 2000 2151
500 2500 2691
600 3000 3262
700 800 3500 3810
Table A1-25 Heating Surface Model CB-LE
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
40
BOILER HPSTEAM VOLUME CU-FT
STEAM DISENGAGING AREASQ-IN
HIGH PRESSUREA LOW PRESSUREB HIGH PRESSUREA LOW PRESSUREB
125 254 366 5371 5887
150 307 443 6511 7138
200 377 544 7985 8752
250 492 706 7980 8695
300 595 853 9651 10516
350 709 1017 11507 12538
400 721 979 9793 10593
500 837 1137 11376 12303
600 1015 1378 13787 14911
700-800 1198 1627 16273 17600
NOTE Based on normal water levelA Based on 150 psig design pressureB Based on 15 psig design pressure
Table A1-26 Steam Volume and Disengaging Area
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
41
BOILERHP
BOILERCAPACITY(LBSHR)
OPERATING PRESSURES (PSIG)
50 75 100 125 150 175 200 250
100 3450
2-12 2-12 NA NA NA NA NA NA
125 4313 3 2-12 2-12 2-12 NA NA NA NA
150 5175 3 3 2-12 2-12 2-12 2-12 NA NA
200 6900 3 3 3 3 3 2-12 2-12 2-12
250 8625 4 3 3 3 3 3 3 3
300 10350 4 4 4 3 3 3 3 3
350 12025 4 4 4 4 4 3 3 3
400 13800 5 4 4 4 4 4 4 3
500 17210 6 5 5 4 4 4 4 4
600 20700 6 6 5 5 5 4 4 4
700 24150 6 6 6 5 5 5 5 4
800 27600 6 6 6 6 6 5 5 5
NOTE Valve sizes (300 Flanges) given in inchesStandard Non-Return valve selections limited to a maximum 2 to 1 turndown(50 of full load) selections based on typical non-return valve sizing recommen-dations For final valve selection contact your C-B authorized representative Forhigh turndown applications see Boiler Book Section I3 Table I3-3 Indicates pressure drop of less than 75 psig All other selections are less than6 psig pressure drop
Boiler HP
OPERATINGPRESSURE
PSIG125 150 200 250 300 350 400 500 600 700 800
15 8 8 10 10 12 12 12 12 12 12 12
30 6 6 8 8 8 10 10 10 12 12 12
40 6 6 6 8 8 8 10 10 10 12 12
50 6 6 6 6 8 8 8 10 10 10 12
75 4 4 6 6 6 8 8 8 8 10 10
100 4 4 6 6 6 6 6 8 8 8 10
125 4 4 4 6 6 6 6 8 8 8 8
150 3 3 4 4 6 6 6 6 6 8 8
200 25 3 4 4 4 4 6 6 6 6 6
250 25 3 3 4 4 4 4 6 6 6 6
NOTES1 Steam nozzle sizes given in inches2 Recommended steam nozzle sizes based on 4000 to 5000 fpm steam velocity3 All standard steam nozzle sizes for 150 psig design pressure or greater are the sameas 125 psig operating pressure on the above table To increase or decrease the standardsize request the change with your local Cleaver-Brooks authorized representative4 Shaded area denotes special surge load baffles must be installed to avoid possible wa-ter carry-over5 For incremental operating pressures see Table I3-1 Steam Systems Fundamentals
Table A1-28 Recommended Steam Nozzle Size (for
4000 to 5000 fpm nozzle velocity)
Table A1-29 Recommended Non-Return Valve Size
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Model CBLE 125-800 HP Boilers
42
1 Shortest boiler room length (Dwg A) is obtained by allowing for possible future tube replacement (from front or rearof boiler) through a window or doorway Allowance is only made for minimum door swing at each end of the boilerThis arrangement provides sufficient aisle space at the front of the boiler but a ldquotightrdquo space condition at the rear
If space permits approximately 15 additional feet should be allowed at the rear for additional aisle and workingspace
2 Next shortest boiler room length (Dwg B) is obtained by allowing for possible future tube replacement from thefront of the boiler Allowance is only made for minimum door swing at the rear
If space permits approximately 15 additional feet should be allowed at the rear for additional aisle and workingspace
3 A slightly longer boiler room (Dwg C) is obtained by allowing for possible future tube replacement from the rear ofthe boiler Allowance for door swing at the front provides sufficient aisle and working space at the front
Figure A1-21 Boiler Room Length (Typical Layouts)
BOILER HP 125-200 250-350 400-800
Dimension A 82 93 102
Dimension B 115 141 171
NOTES1 Recommended Minimum Distance Between Boiler and Wall Dimen-
sion ldquoArdquo allows for a ldquoclearrdquo 42 aisle between the water col-umn on the boiler and the wall If space permits this aisle
should be widened 2 Recommended Minimum Distance Between BoilersDimension ldquoBrdquo between boilers allows for a ldquoclearrdquo aisle of42 - 125 -200 hp48 - 250-350 hp60 - 400-800 hpIf space permits this aisle should be widened
Figure A1-22 Boiler Room Width (Typical Layout)
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Model CBLE 125-800 HP Boilers
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
32
ALTITUDE(FT)
CORRECTIONFACTOR
ALTITUDE(FT)
CORRECTIONFACTOR
1000 104 6000 1252000 107 7000 130
3000 111 8000 135
4000 116 9000 140
5000 121 - -
To obtain minimum required gas pressure at altitudesabove 700 feet multiply the pressure by the listed factorsInches WC x 0577 = ozsq-inOzsq-in x 1732 = Inches WCInches WC x 00361= psigOzsq-in x 00625 = psigPsig x 2771 = Inches WCPsig x 160 = Ozsq-in
Table A1-22 Minimum Required Regulated Gas Pressure
Altitude Conversion
BOILERHP
TYPE OF GAS AND HEAT CONTENT
NATURAL GAS1000 (Btucu-ft)
PROPANE GAS2550 (Btucu-ft)
125 5103 2000
150 6124 2402
200 8165 3202
250 10206 4002
300 12247 4802
350 14280 5600
400 16329 6404
500 20415 8006
600 24494 9605
700 28576 11206
800 32659 12807
Table A1-23 Maximum Gas Consumption (CFH)
for Natural Gas and Propane Vapor
BOILER
HP
MODEL CB
CONNECTION SIZE
(IN NPT)
LOCATIONDIMENSION
ldquoArdquo (IN)
125-200 1-12 52
250-350 2 56
400 2 58
500 2-12 60
600 2-12 - 3 71
700-800 3 65
Figure A1-13 Standard Gas Train Connection Size and Location
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Model CBLE 125-800 HP Boilers
33
Oil-Fired Burners Fuel oil consumption information is shown on the boiler rating sheets in theDimensions and Rating Section
Figure A1-16 shows the oil connection sizes and locations for Model CB Boilersfiring No 2 oil
Figure A1-17 through Figure A1-18 show typical oil systems and layouts
Figure A1-19 and Figure A1-20 show the detail of an oil transfer tank (day tank)typically utilized to provide a storage reservoir between the oil system supply pumpand the boiler oil pump
General BoilerInformation
Table A1-24 shows blowdown tank sizing information
Table A1-25 provides heating surface information
Table A1-26 provides steam volume and disengaging area information
Table A1-27 provides recommended steam nozzle sizes
Table A1-28 provides recommended non-return valve sizes
Boiler RoomInformation
Figure A1-21 shows typical boiler room length requirements
Figure A1-22 shows typical boiler room width requirements
Figure A1-23 shows typical breeching arrangements
Stack SupportCapabilities
All standard Cleaver-Brooks Firetube Boilers with an LE option can support up to2000 lbs without additional support
LE Boilers 250 hp through 800 hp can be reinforced to support 3000 lbs
StackBreechingSize Criteria
The design of the stack and breeching must provide the required draft at each boilerflue gas outlet Proper draft is critical to burner performance
Although constant pressure at the flue gas outlet of the Model CB-LE is not requiredit is necessary to size the stackbreeching to limit flue gas pressure variation Theallowable pressure range is ndash025 WC to +025 WC
For additional information please review Section I4 General Engineering Data(Stacks) and Section F Stacks Stack and breeching sizes should always be providedby a reputable stack supplier who will design the stack and breeching system basedon the above criteria Your local Cleaver-Brooks authorized representative is capableof assisting in your evaluation of the stackbreeching design
Boiler RoomCombustion Air
When determining boiler room air requirements the size of the room air flow andvelocity of air must be reviewed as follows
1 Size (area) and location of air supply openings in boiler room
A Two (2) permanent air supply openings in the outer walls of the boiler room
are recommended Locate (1) at each end of the boiler room preferablybelow a height of 7 feet This allows air to sweep the length of the boiler
B Air supply openings can be louvered for weather protection but they shouldnot be covered with fine mesh wire as this type of covering has poor air flowqualities and is subject to clogging by dust or dirt
C A vent fan in the boiler room is not recommended as it could create a slightvacuum under certain conditions and cause variations in the quantity ofcombustion air This can result in unsatisfactory burner performance
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 3443
Model CBLE 125-800 HP Boilers
34
D Under no condition should the total area of the air supply openings be lessthan (1) square foot
E Size the openings by using the formulaArea (sq-ft) = CFMFPM
2 Amount of air required (cfm)
A Combustion Air = Rated bhp x 8 cfmbhp
B Ventilation Air = Maximum bhp x 2 cfmbhp
C Total recommended air = 10 cfmbhp - up to 1000 feet elevation Add 3percent more per 1000 feet of added elevation
3 Acceptable air velocity in Boiler Room (fpm)
A From floor to (7) foot height - 250 fpm
B Above (7) foot height - 500 fpm
Example Determine the area of the boiler room air supply openings for (1) 300 hpboiler at 800 feet altitude The air openings are to be 5 feet above floor level
bull Air required 300 x 10 = 3000 cfm (from 2B above)
bull Air velocity Up to 7 feet = 250 fpm (from 3 above)
bull Area Required Area = cfm = 3000250 = 12 sq-ft total
bull AreaOpening 122 = 6 sq-ftopening (2 required)
Notice
Consult local codes which may supersede these requirements
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 3543
Model CBLE 125-800 HP Boilers
35
This figure illustrates the basic gas valve arrangement on Cleaver-BrooksModel CB boiler and shows the contractors connection point The valves andcontrols between the contractor connection point and the gas main in thestreet are representative of a typical installation Actual requirements mayvary depending on local codes or local gas company requirements which
should be investigated prior to preparation of specifications and prior to con-struction
A Utilities service valveB Utilities service regulatorC Gas meterD Piping from meter to boiler
The size of the gas line from the meter to the gas pressure regulator at theboiler can be very important if gas pressures are marginal The gas line sizingis dependent on
1 Gas pressure at outlet of gas meter (C)2 Rate of gas flow required CFH3 Length of pipe run (D)4 Pressure required at contractor connection point
The local gas utility will advise the pressure that is available at the outlet oftheir meter
Figure A1-14 Typical Gas Piping Layout
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
36
5
6
S
1
3
42
PILOT GAS LINE
S
S
MAIN GAS LINE
M M
ToBurner
GasSupply
11
10
97
12138
14 15
FLOW
FLOW
Figure A1-15 Model CB-LE Gas Train Components
BOILER
HP
MODEL CB
SUPPLYANDRE-
TURNCONN SIZES
(IN)(NPT)
A(IN)
RECOMMENDED OIL LINEA
SIZES(STANDARD PIPE)
(IN - IPS)
STOR-AGE
TANK TOBOILER
OR PUMPCONNECT
PUMPTO
BOILER
RE-TURN
LINE TOTANK
125150 200
34 12-12 1 1 1
250300350
34 34 1 1 1
400500600
34 11-34 1 1 1
700800
1 11-34 1 1 1
NOTE See No 2 Oil Line Sizing Instruction for systems with other conditions A For suction line condition with a maximum of 10 Feet of lift and a
total of 100 feet of suction line
Figure A1-16 No2 Oil Connection Size Location and Recommended Line Sizes
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Model CBLE 125-800 HP Boilers
37
Figure A1-17 No 2 Oil Piping Single Boiler
Installation Remote Oil Pump
Figure A1-18 No 2 Oil Piping Multiple Boiler
Installation Remote Oil Pumps
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
38
Figure A1-19 No 2 Oil Piping Multiple Boiler
Installation
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
39
Figure A1-20 No 2 Oil Piping Typical Arrangement
Table A1-24 Model CB-LE Blowdown
Tank Sizing
BOILER HP WATER (GAL)
125 97
150 118
200 145
250 146
300 176
350 210
400 177
500 209
600 250
700 800 296
NOTE Quantity of water removed from boiler by lowering normal water line 4
BOILER
HP
HEATING SURFACE (SQ-FT)
FIRESIDE WATERSIDE
125 625 679
150 750 820
200 1000 1092
250 1250 1346
300 1500 1623
350 1750 1932
400 2000 2151
500 2500 2691
600 3000 3262
700 800 3500 3810
Table A1-25 Heating Surface Model CB-LE
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
40
BOILER HPSTEAM VOLUME CU-FT
STEAM DISENGAGING AREASQ-IN
HIGH PRESSUREA LOW PRESSUREB HIGH PRESSUREA LOW PRESSUREB
125 254 366 5371 5887
150 307 443 6511 7138
200 377 544 7985 8752
250 492 706 7980 8695
300 595 853 9651 10516
350 709 1017 11507 12538
400 721 979 9793 10593
500 837 1137 11376 12303
600 1015 1378 13787 14911
700-800 1198 1627 16273 17600
NOTE Based on normal water levelA Based on 150 psig design pressureB Based on 15 psig design pressure
Table A1-26 Steam Volume and Disengaging Area
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
41
BOILERHP
BOILERCAPACITY(LBSHR)
OPERATING PRESSURES (PSIG)
50 75 100 125 150 175 200 250
100 3450
2-12 2-12 NA NA NA NA NA NA
125 4313 3 2-12 2-12 2-12 NA NA NA NA
150 5175 3 3 2-12 2-12 2-12 2-12 NA NA
200 6900 3 3 3 3 3 2-12 2-12 2-12
250 8625 4 3 3 3 3 3 3 3
300 10350 4 4 4 3 3 3 3 3
350 12025 4 4 4 4 4 3 3 3
400 13800 5 4 4 4 4 4 4 3
500 17210 6 5 5 4 4 4 4 4
600 20700 6 6 5 5 5 4 4 4
700 24150 6 6 6 5 5 5 5 4
800 27600 6 6 6 6 6 5 5 5
NOTE Valve sizes (300 Flanges) given in inchesStandard Non-Return valve selections limited to a maximum 2 to 1 turndown(50 of full load) selections based on typical non-return valve sizing recommen-dations For final valve selection contact your C-B authorized representative Forhigh turndown applications see Boiler Book Section I3 Table I3-3 Indicates pressure drop of less than 75 psig All other selections are less than6 psig pressure drop
Boiler HP
OPERATINGPRESSURE
PSIG125 150 200 250 300 350 400 500 600 700 800
15 8 8 10 10 12 12 12 12 12 12 12
30 6 6 8 8 8 10 10 10 12 12 12
40 6 6 6 8 8 8 10 10 10 12 12
50 6 6 6 6 8 8 8 10 10 10 12
75 4 4 6 6 6 8 8 8 8 10 10
100 4 4 6 6 6 6 6 8 8 8 10
125 4 4 4 6 6 6 6 8 8 8 8
150 3 3 4 4 6 6 6 6 6 8 8
200 25 3 4 4 4 4 6 6 6 6 6
250 25 3 3 4 4 4 4 6 6 6 6
NOTES1 Steam nozzle sizes given in inches2 Recommended steam nozzle sizes based on 4000 to 5000 fpm steam velocity3 All standard steam nozzle sizes for 150 psig design pressure or greater are the sameas 125 psig operating pressure on the above table To increase or decrease the standardsize request the change with your local Cleaver-Brooks authorized representative4 Shaded area denotes special surge load baffles must be installed to avoid possible wa-ter carry-over5 For incremental operating pressures see Table I3-1 Steam Systems Fundamentals
Table A1-28 Recommended Steam Nozzle Size (for
4000 to 5000 fpm nozzle velocity)
Table A1-29 Recommended Non-Return Valve Size
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Model CBLE 125-800 HP Boilers
42
1 Shortest boiler room length (Dwg A) is obtained by allowing for possible future tube replacement (from front or rearof boiler) through a window or doorway Allowance is only made for minimum door swing at each end of the boilerThis arrangement provides sufficient aisle space at the front of the boiler but a ldquotightrdquo space condition at the rear
If space permits approximately 15 additional feet should be allowed at the rear for additional aisle and workingspace
2 Next shortest boiler room length (Dwg B) is obtained by allowing for possible future tube replacement from thefront of the boiler Allowance is only made for minimum door swing at the rear
If space permits approximately 15 additional feet should be allowed at the rear for additional aisle and workingspace
3 A slightly longer boiler room (Dwg C) is obtained by allowing for possible future tube replacement from the rear ofthe boiler Allowance for door swing at the front provides sufficient aisle and working space at the front
Figure A1-21 Boiler Room Length (Typical Layouts)
BOILER HP 125-200 250-350 400-800
Dimension A 82 93 102
Dimension B 115 141 171
NOTES1 Recommended Minimum Distance Between Boiler and Wall Dimen-
sion ldquoArdquo allows for a ldquoclearrdquo 42 aisle between the water col-umn on the boiler and the wall If space permits this aisle
should be widened 2 Recommended Minimum Distance Between BoilersDimension ldquoBrdquo between boilers allows for a ldquoclearrdquo aisle of42 - 125 -200 hp48 - 250-350 hp60 - 400-800 hpIf space permits this aisle should be widened
Figure A1-22 Boiler Room Width (Typical Layout)
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
33
Oil-Fired Burners Fuel oil consumption information is shown on the boiler rating sheets in theDimensions and Rating Section
Figure A1-16 shows the oil connection sizes and locations for Model CB Boilersfiring No 2 oil
Figure A1-17 through Figure A1-18 show typical oil systems and layouts
Figure A1-19 and Figure A1-20 show the detail of an oil transfer tank (day tank)typically utilized to provide a storage reservoir between the oil system supply pumpand the boiler oil pump
General BoilerInformation
Table A1-24 shows blowdown tank sizing information
Table A1-25 provides heating surface information
Table A1-26 provides steam volume and disengaging area information
Table A1-27 provides recommended steam nozzle sizes
Table A1-28 provides recommended non-return valve sizes
Boiler RoomInformation
Figure A1-21 shows typical boiler room length requirements
Figure A1-22 shows typical boiler room width requirements
Figure A1-23 shows typical breeching arrangements
Stack SupportCapabilities
All standard Cleaver-Brooks Firetube Boilers with an LE option can support up to2000 lbs without additional support
LE Boilers 250 hp through 800 hp can be reinforced to support 3000 lbs
StackBreechingSize Criteria
The design of the stack and breeching must provide the required draft at each boilerflue gas outlet Proper draft is critical to burner performance
Although constant pressure at the flue gas outlet of the Model CB-LE is not requiredit is necessary to size the stackbreeching to limit flue gas pressure variation Theallowable pressure range is ndash025 WC to +025 WC
For additional information please review Section I4 General Engineering Data(Stacks) and Section F Stacks Stack and breeching sizes should always be providedby a reputable stack supplier who will design the stack and breeching system basedon the above criteria Your local Cleaver-Brooks authorized representative is capableof assisting in your evaluation of the stackbreeching design
Boiler RoomCombustion Air
When determining boiler room air requirements the size of the room air flow andvelocity of air must be reviewed as follows
1 Size (area) and location of air supply openings in boiler room
A Two (2) permanent air supply openings in the outer walls of the boiler room
are recommended Locate (1) at each end of the boiler room preferablybelow a height of 7 feet This allows air to sweep the length of the boiler
B Air supply openings can be louvered for weather protection but they shouldnot be covered with fine mesh wire as this type of covering has poor air flowqualities and is subject to clogging by dust or dirt
C A vent fan in the boiler room is not recommended as it could create a slightvacuum under certain conditions and cause variations in the quantity ofcombustion air This can result in unsatisfactory burner performance
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 3443
Model CBLE 125-800 HP Boilers
34
D Under no condition should the total area of the air supply openings be lessthan (1) square foot
E Size the openings by using the formulaArea (sq-ft) = CFMFPM
2 Amount of air required (cfm)
A Combustion Air = Rated bhp x 8 cfmbhp
B Ventilation Air = Maximum bhp x 2 cfmbhp
C Total recommended air = 10 cfmbhp - up to 1000 feet elevation Add 3percent more per 1000 feet of added elevation
3 Acceptable air velocity in Boiler Room (fpm)
A From floor to (7) foot height - 250 fpm
B Above (7) foot height - 500 fpm
Example Determine the area of the boiler room air supply openings for (1) 300 hpboiler at 800 feet altitude The air openings are to be 5 feet above floor level
bull Air required 300 x 10 = 3000 cfm (from 2B above)
bull Air velocity Up to 7 feet = 250 fpm (from 3 above)
bull Area Required Area = cfm = 3000250 = 12 sq-ft total
bull AreaOpening 122 = 6 sq-ftopening (2 required)
Notice
Consult local codes which may supersede these requirements
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 3543
Model CBLE 125-800 HP Boilers
35
This figure illustrates the basic gas valve arrangement on Cleaver-BrooksModel CB boiler and shows the contractors connection point The valves andcontrols between the contractor connection point and the gas main in thestreet are representative of a typical installation Actual requirements mayvary depending on local codes or local gas company requirements which
should be investigated prior to preparation of specifications and prior to con-struction
A Utilities service valveB Utilities service regulatorC Gas meterD Piping from meter to boiler
The size of the gas line from the meter to the gas pressure regulator at theboiler can be very important if gas pressures are marginal The gas line sizingis dependent on
1 Gas pressure at outlet of gas meter (C)2 Rate of gas flow required CFH3 Length of pipe run (D)4 Pressure required at contractor connection point
The local gas utility will advise the pressure that is available at the outlet oftheir meter
Figure A1-14 Typical Gas Piping Layout
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 3643
Model CBLE 125-800 HP Boilers
36
5
6
S
1
3
42
PILOT GAS LINE
S
S
MAIN GAS LINE
M M
ToBurner
GasSupply
11
10
97
12138
14 15
FLOW
FLOW
Figure A1-15 Model CB-LE Gas Train Components
BOILER
HP
MODEL CB
SUPPLYANDRE-
TURNCONN SIZES
(IN)(NPT)
A(IN)
RECOMMENDED OIL LINEA
SIZES(STANDARD PIPE)
(IN - IPS)
STOR-AGE
TANK TOBOILER
OR PUMPCONNECT
PUMPTO
BOILER
RE-TURN
LINE TOTANK
125150 200
34 12-12 1 1 1
250300350
34 34 1 1 1
400500600
34 11-34 1 1 1
700800
1 11-34 1 1 1
NOTE See No 2 Oil Line Sizing Instruction for systems with other conditions A For suction line condition with a maximum of 10 Feet of lift and a
total of 100 feet of suction line
Figure A1-16 No2 Oil Connection Size Location and Recommended Line Sizes
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 3743
Model CBLE 125-800 HP Boilers
37
Figure A1-17 No 2 Oil Piping Single Boiler
Installation Remote Oil Pump
Figure A1-18 No 2 Oil Piping Multiple Boiler
Installation Remote Oil Pumps
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 3843
Model CBLE 125-800 HP Boilers
38
Figure A1-19 No 2 Oil Piping Multiple Boiler
Installation
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 3943
Model CBLE 125-800 HP Boilers
39
Figure A1-20 No 2 Oil Piping Typical Arrangement
Table A1-24 Model CB-LE Blowdown
Tank Sizing
BOILER HP WATER (GAL)
125 97
150 118
200 145
250 146
300 176
350 210
400 177
500 209
600 250
700 800 296
NOTE Quantity of water removed from boiler by lowering normal water line 4
BOILER
HP
HEATING SURFACE (SQ-FT)
FIRESIDE WATERSIDE
125 625 679
150 750 820
200 1000 1092
250 1250 1346
300 1500 1623
350 1750 1932
400 2000 2151
500 2500 2691
600 3000 3262
700 800 3500 3810
Table A1-25 Heating Surface Model CB-LE
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 4043
Model CBLE 125-800 HP Boilers
40
BOILER HPSTEAM VOLUME CU-FT
STEAM DISENGAGING AREASQ-IN
HIGH PRESSUREA LOW PRESSUREB HIGH PRESSUREA LOW PRESSUREB
125 254 366 5371 5887
150 307 443 6511 7138
200 377 544 7985 8752
250 492 706 7980 8695
300 595 853 9651 10516
350 709 1017 11507 12538
400 721 979 9793 10593
500 837 1137 11376 12303
600 1015 1378 13787 14911
700-800 1198 1627 16273 17600
NOTE Based on normal water levelA Based on 150 psig design pressureB Based on 15 psig design pressure
Table A1-26 Steam Volume and Disengaging Area
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 4143
Model CBLE 125-800 HP Boilers
41
BOILERHP
BOILERCAPACITY(LBSHR)
OPERATING PRESSURES (PSIG)
50 75 100 125 150 175 200 250
100 3450
2-12 2-12 NA NA NA NA NA NA
125 4313 3 2-12 2-12 2-12 NA NA NA NA
150 5175 3 3 2-12 2-12 2-12 2-12 NA NA
200 6900 3 3 3 3 3 2-12 2-12 2-12
250 8625 4 3 3 3 3 3 3 3
300 10350 4 4 4 3 3 3 3 3
350 12025 4 4 4 4 4 3 3 3
400 13800 5 4 4 4 4 4 4 3
500 17210 6 5 5 4 4 4 4 4
600 20700 6 6 5 5 5 4 4 4
700 24150 6 6 6 5 5 5 5 4
800 27600 6 6 6 6 6 5 5 5
NOTE Valve sizes (300 Flanges) given in inchesStandard Non-Return valve selections limited to a maximum 2 to 1 turndown(50 of full load) selections based on typical non-return valve sizing recommen-dations For final valve selection contact your C-B authorized representative Forhigh turndown applications see Boiler Book Section I3 Table I3-3 Indicates pressure drop of less than 75 psig All other selections are less than6 psig pressure drop
Boiler HP
OPERATINGPRESSURE
PSIG125 150 200 250 300 350 400 500 600 700 800
15 8 8 10 10 12 12 12 12 12 12 12
30 6 6 8 8 8 10 10 10 12 12 12
40 6 6 6 8 8 8 10 10 10 12 12
50 6 6 6 6 8 8 8 10 10 10 12
75 4 4 6 6 6 8 8 8 8 10 10
100 4 4 6 6 6 6 6 8 8 8 10
125 4 4 4 6 6 6 6 8 8 8 8
150 3 3 4 4 6 6 6 6 6 8 8
200 25 3 4 4 4 4 6 6 6 6 6
250 25 3 3 4 4 4 4 6 6 6 6
NOTES1 Steam nozzle sizes given in inches2 Recommended steam nozzle sizes based on 4000 to 5000 fpm steam velocity3 All standard steam nozzle sizes for 150 psig design pressure or greater are the sameas 125 psig operating pressure on the above table To increase or decrease the standardsize request the change with your local Cleaver-Brooks authorized representative4 Shaded area denotes special surge load baffles must be installed to avoid possible wa-ter carry-over5 For incremental operating pressures see Table I3-1 Steam Systems Fundamentals
Table A1-28 Recommended Steam Nozzle Size (for
4000 to 5000 fpm nozzle velocity)
Table A1-29 Recommended Non-Return Valve Size
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 4243
Model CBLE 125-800 HP Boilers
42
1 Shortest boiler room length (Dwg A) is obtained by allowing for possible future tube replacement (from front or rearof boiler) through a window or doorway Allowance is only made for minimum door swing at each end of the boilerThis arrangement provides sufficient aisle space at the front of the boiler but a ldquotightrdquo space condition at the rear
If space permits approximately 15 additional feet should be allowed at the rear for additional aisle and workingspace
2 Next shortest boiler room length (Dwg B) is obtained by allowing for possible future tube replacement from thefront of the boiler Allowance is only made for minimum door swing at the rear
If space permits approximately 15 additional feet should be allowed at the rear for additional aisle and workingspace
3 A slightly longer boiler room (Dwg C) is obtained by allowing for possible future tube replacement from the rear ofthe boiler Allowance for door swing at the front provides sufficient aisle and working space at the front
Figure A1-21 Boiler Room Length (Typical Layouts)
BOILER HP 125-200 250-350 400-800
Dimension A 82 93 102
Dimension B 115 141 171
NOTES1 Recommended Minimum Distance Between Boiler and Wall Dimen-
sion ldquoArdquo allows for a ldquoclearrdquo 42 aisle between the water col-umn on the boiler and the wall If space permits this aisle
should be widened 2 Recommended Minimum Distance Between BoilersDimension ldquoBrdquo between boilers allows for a ldquoclearrdquo aisle of42 - 125 -200 hp48 - 250-350 hp60 - 400-800 hpIf space permits this aisle should be widened
Figure A1-22 Boiler Room Width (Typical Layout)
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 4343
Model CBLE 125-800 HP Boilers
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 3443
Model CBLE 125-800 HP Boilers
34
D Under no condition should the total area of the air supply openings be lessthan (1) square foot
E Size the openings by using the formulaArea (sq-ft) = CFMFPM
2 Amount of air required (cfm)
A Combustion Air = Rated bhp x 8 cfmbhp
B Ventilation Air = Maximum bhp x 2 cfmbhp
C Total recommended air = 10 cfmbhp - up to 1000 feet elevation Add 3percent more per 1000 feet of added elevation
3 Acceptable air velocity in Boiler Room (fpm)
A From floor to (7) foot height - 250 fpm
B Above (7) foot height - 500 fpm
Example Determine the area of the boiler room air supply openings for (1) 300 hpboiler at 800 feet altitude The air openings are to be 5 feet above floor level
bull Air required 300 x 10 = 3000 cfm (from 2B above)
bull Air velocity Up to 7 feet = 250 fpm (from 3 above)
bull Area Required Area = cfm = 3000250 = 12 sq-ft total
bull AreaOpening 122 = 6 sq-ftopening (2 required)
Notice
Consult local codes which may supersede these requirements
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 3543
Model CBLE 125-800 HP Boilers
35
This figure illustrates the basic gas valve arrangement on Cleaver-BrooksModel CB boiler and shows the contractors connection point The valves andcontrols between the contractor connection point and the gas main in thestreet are representative of a typical installation Actual requirements mayvary depending on local codes or local gas company requirements which
should be investigated prior to preparation of specifications and prior to con-struction
A Utilities service valveB Utilities service regulatorC Gas meterD Piping from meter to boiler
The size of the gas line from the meter to the gas pressure regulator at theboiler can be very important if gas pressures are marginal The gas line sizingis dependent on
1 Gas pressure at outlet of gas meter (C)2 Rate of gas flow required CFH3 Length of pipe run (D)4 Pressure required at contractor connection point
The local gas utility will advise the pressure that is available at the outlet oftheir meter
Figure A1-14 Typical Gas Piping Layout
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 3643
Model CBLE 125-800 HP Boilers
36
5
6
S
1
3
42
PILOT GAS LINE
S
S
MAIN GAS LINE
M M
ToBurner
GasSupply
11
10
97
12138
14 15
FLOW
FLOW
Figure A1-15 Model CB-LE Gas Train Components
BOILER
HP
MODEL CB
SUPPLYANDRE-
TURNCONN SIZES
(IN)(NPT)
A(IN)
RECOMMENDED OIL LINEA
SIZES(STANDARD PIPE)
(IN - IPS)
STOR-AGE
TANK TOBOILER
OR PUMPCONNECT
PUMPTO
BOILER
RE-TURN
LINE TOTANK
125150 200
34 12-12 1 1 1
250300350
34 34 1 1 1
400500600
34 11-34 1 1 1
700800
1 11-34 1 1 1
NOTE See No 2 Oil Line Sizing Instruction for systems with other conditions A For suction line condition with a maximum of 10 Feet of lift and a
total of 100 feet of suction line
Figure A1-16 No2 Oil Connection Size Location and Recommended Line Sizes
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 3743
Model CBLE 125-800 HP Boilers
37
Figure A1-17 No 2 Oil Piping Single Boiler
Installation Remote Oil Pump
Figure A1-18 No 2 Oil Piping Multiple Boiler
Installation Remote Oil Pumps
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 3843
Model CBLE 125-800 HP Boilers
38
Figure A1-19 No 2 Oil Piping Multiple Boiler
Installation
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 3943
Model CBLE 125-800 HP Boilers
39
Figure A1-20 No 2 Oil Piping Typical Arrangement
Table A1-24 Model CB-LE Blowdown
Tank Sizing
BOILER HP WATER (GAL)
125 97
150 118
200 145
250 146
300 176
350 210
400 177
500 209
600 250
700 800 296
NOTE Quantity of water removed from boiler by lowering normal water line 4
BOILER
HP
HEATING SURFACE (SQ-FT)
FIRESIDE WATERSIDE
125 625 679
150 750 820
200 1000 1092
250 1250 1346
300 1500 1623
350 1750 1932
400 2000 2151
500 2500 2691
600 3000 3262
700 800 3500 3810
Table A1-25 Heating Surface Model CB-LE
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 4043
Model CBLE 125-800 HP Boilers
40
BOILER HPSTEAM VOLUME CU-FT
STEAM DISENGAGING AREASQ-IN
HIGH PRESSUREA LOW PRESSUREB HIGH PRESSUREA LOW PRESSUREB
125 254 366 5371 5887
150 307 443 6511 7138
200 377 544 7985 8752
250 492 706 7980 8695
300 595 853 9651 10516
350 709 1017 11507 12538
400 721 979 9793 10593
500 837 1137 11376 12303
600 1015 1378 13787 14911
700-800 1198 1627 16273 17600
NOTE Based on normal water levelA Based on 150 psig design pressureB Based on 15 psig design pressure
Table A1-26 Steam Volume and Disengaging Area
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 4143
Model CBLE 125-800 HP Boilers
41
BOILERHP
BOILERCAPACITY(LBSHR)
OPERATING PRESSURES (PSIG)
50 75 100 125 150 175 200 250
100 3450
2-12 2-12 NA NA NA NA NA NA
125 4313 3 2-12 2-12 2-12 NA NA NA NA
150 5175 3 3 2-12 2-12 2-12 2-12 NA NA
200 6900 3 3 3 3 3 2-12 2-12 2-12
250 8625 4 3 3 3 3 3 3 3
300 10350 4 4 4 3 3 3 3 3
350 12025 4 4 4 4 4 3 3 3
400 13800 5 4 4 4 4 4 4 3
500 17210 6 5 5 4 4 4 4 4
600 20700 6 6 5 5 5 4 4 4
700 24150 6 6 6 5 5 5 5 4
800 27600 6 6 6 6 6 5 5 5
NOTE Valve sizes (300 Flanges) given in inchesStandard Non-Return valve selections limited to a maximum 2 to 1 turndown(50 of full load) selections based on typical non-return valve sizing recommen-dations For final valve selection contact your C-B authorized representative Forhigh turndown applications see Boiler Book Section I3 Table I3-3 Indicates pressure drop of less than 75 psig All other selections are less than6 psig pressure drop
Boiler HP
OPERATINGPRESSURE
PSIG125 150 200 250 300 350 400 500 600 700 800
15 8 8 10 10 12 12 12 12 12 12 12
30 6 6 8 8 8 10 10 10 12 12 12
40 6 6 6 8 8 8 10 10 10 12 12
50 6 6 6 6 8 8 8 10 10 10 12
75 4 4 6 6 6 8 8 8 8 10 10
100 4 4 6 6 6 6 6 8 8 8 10
125 4 4 4 6 6 6 6 8 8 8 8
150 3 3 4 4 6 6 6 6 6 8 8
200 25 3 4 4 4 4 6 6 6 6 6
250 25 3 3 4 4 4 4 6 6 6 6
NOTES1 Steam nozzle sizes given in inches2 Recommended steam nozzle sizes based on 4000 to 5000 fpm steam velocity3 All standard steam nozzle sizes for 150 psig design pressure or greater are the sameas 125 psig operating pressure on the above table To increase or decrease the standardsize request the change with your local Cleaver-Brooks authorized representative4 Shaded area denotes special surge load baffles must be installed to avoid possible wa-ter carry-over5 For incremental operating pressures see Table I3-1 Steam Systems Fundamentals
Table A1-28 Recommended Steam Nozzle Size (for
4000 to 5000 fpm nozzle velocity)
Table A1-29 Recommended Non-Return Valve Size
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 4243
Model CBLE 125-800 HP Boilers
42
1 Shortest boiler room length (Dwg A) is obtained by allowing for possible future tube replacement (from front or rearof boiler) through a window or doorway Allowance is only made for minimum door swing at each end of the boilerThis arrangement provides sufficient aisle space at the front of the boiler but a ldquotightrdquo space condition at the rear
If space permits approximately 15 additional feet should be allowed at the rear for additional aisle and workingspace
2 Next shortest boiler room length (Dwg B) is obtained by allowing for possible future tube replacement from thefront of the boiler Allowance is only made for minimum door swing at the rear
If space permits approximately 15 additional feet should be allowed at the rear for additional aisle and workingspace
3 A slightly longer boiler room (Dwg C) is obtained by allowing for possible future tube replacement from the rear ofthe boiler Allowance for door swing at the front provides sufficient aisle and working space at the front
Figure A1-21 Boiler Room Length (Typical Layouts)
BOILER HP 125-200 250-350 400-800
Dimension A 82 93 102
Dimension B 115 141 171
NOTES1 Recommended Minimum Distance Between Boiler and Wall Dimen-
sion ldquoArdquo allows for a ldquoclearrdquo 42 aisle between the water col-umn on the boiler and the wall If space permits this aisle
should be widened 2 Recommended Minimum Distance Between BoilersDimension ldquoBrdquo between boilers allows for a ldquoclearrdquo aisle of42 - 125 -200 hp48 - 250-350 hp60 - 400-800 hpIf space permits this aisle should be widened
Figure A1-22 Boiler Room Width (Typical Layout)
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 4343
Model CBLE 125-800 HP Boilers
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 3543
Model CBLE 125-800 HP Boilers
35
This figure illustrates the basic gas valve arrangement on Cleaver-BrooksModel CB boiler and shows the contractors connection point The valves andcontrols between the contractor connection point and the gas main in thestreet are representative of a typical installation Actual requirements mayvary depending on local codes or local gas company requirements which
should be investigated prior to preparation of specifications and prior to con-struction
A Utilities service valveB Utilities service regulatorC Gas meterD Piping from meter to boiler
The size of the gas line from the meter to the gas pressure regulator at theboiler can be very important if gas pressures are marginal The gas line sizingis dependent on
1 Gas pressure at outlet of gas meter (C)2 Rate of gas flow required CFH3 Length of pipe run (D)4 Pressure required at contractor connection point
The local gas utility will advise the pressure that is available at the outlet oftheir meter
Figure A1-14 Typical Gas Piping Layout
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 3643
Model CBLE 125-800 HP Boilers
36
5
6
S
1
3
42
PILOT GAS LINE
S
S
MAIN GAS LINE
M M
ToBurner
GasSupply
11
10
97
12138
14 15
FLOW
FLOW
Figure A1-15 Model CB-LE Gas Train Components
BOILER
HP
MODEL CB
SUPPLYANDRE-
TURNCONN SIZES
(IN)(NPT)
A(IN)
RECOMMENDED OIL LINEA
SIZES(STANDARD PIPE)
(IN - IPS)
STOR-AGE
TANK TOBOILER
OR PUMPCONNECT
PUMPTO
BOILER
RE-TURN
LINE TOTANK
125150 200
34 12-12 1 1 1
250300350
34 34 1 1 1
400500600
34 11-34 1 1 1
700800
1 11-34 1 1 1
NOTE See No 2 Oil Line Sizing Instruction for systems with other conditions A For suction line condition with a maximum of 10 Feet of lift and a
total of 100 feet of suction line
Figure A1-16 No2 Oil Connection Size Location and Recommended Line Sizes
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 3743
Model CBLE 125-800 HP Boilers
37
Figure A1-17 No 2 Oil Piping Single Boiler
Installation Remote Oil Pump
Figure A1-18 No 2 Oil Piping Multiple Boiler
Installation Remote Oil Pumps
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 3843
Model CBLE 125-800 HP Boilers
38
Figure A1-19 No 2 Oil Piping Multiple Boiler
Installation
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 3943
Model CBLE 125-800 HP Boilers
39
Figure A1-20 No 2 Oil Piping Typical Arrangement
Table A1-24 Model CB-LE Blowdown
Tank Sizing
BOILER HP WATER (GAL)
125 97
150 118
200 145
250 146
300 176
350 210
400 177
500 209
600 250
700 800 296
NOTE Quantity of water removed from boiler by lowering normal water line 4
BOILER
HP
HEATING SURFACE (SQ-FT)
FIRESIDE WATERSIDE
125 625 679
150 750 820
200 1000 1092
250 1250 1346
300 1500 1623
350 1750 1932
400 2000 2151
500 2500 2691
600 3000 3262
700 800 3500 3810
Table A1-25 Heating Surface Model CB-LE
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 4043
Model CBLE 125-800 HP Boilers
40
BOILER HPSTEAM VOLUME CU-FT
STEAM DISENGAGING AREASQ-IN
HIGH PRESSUREA LOW PRESSUREB HIGH PRESSUREA LOW PRESSUREB
125 254 366 5371 5887
150 307 443 6511 7138
200 377 544 7985 8752
250 492 706 7980 8695
300 595 853 9651 10516
350 709 1017 11507 12538
400 721 979 9793 10593
500 837 1137 11376 12303
600 1015 1378 13787 14911
700-800 1198 1627 16273 17600
NOTE Based on normal water levelA Based on 150 psig design pressureB Based on 15 psig design pressure
Table A1-26 Steam Volume and Disengaging Area
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 4143
Model CBLE 125-800 HP Boilers
41
BOILERHP
BOILERCAPACITY(LBSHR)
OPERATING PRESSURES (PSIG)
50 75 100 125 150 175 200 250
100 3450
2-12 2-12 NA NA NA NA NA NA
125 4313 3 2-12 2-12 2-12 NA NA NA NA
150 5175 3 3 2-12 2-12 2-12 2-12 NA NA
200 6900 3 3 3 3 3 2-12 2-12 2-12
250 8625 4 3 3 3 3 3 3 3
300 10350 4 4 4 3 3 3 3 3
350 12025 4 4 4 4 4 3 3 3
400 13800 5 4 4 4 4 4 4 3
500 17210 6 5 5 4 4 4 4 4
600 20700 6 6 5 5 5 4 4 4
700 24150 6 6 6 5 5 5 5 4
800 27600 6 6 6 6 6 5 5 5
NOTE Valve sizes (300 Flanges) given in inchesStandard Non-Return valve selections limited to a maximum 2 to 1 turndown(50 of full load) selections based on typical non-return valve sizing recommen-dations For final valve selection contact your C-B authorized representative Forhigh turndown applications see Boiler Book Section I3 Table I3-3 Indicates pressure drop of less than 75 psig All other selections are less than6 psig pressure drop
Boiler HP
OPERATINGPRESSURE
PSIG125 150 200 250 300 350 400 500 600 700 800
15 8 8 10 10 12 12 12 12 12 12 12
30 6 6 8 8 8 10 10 10 12 12 12
40 6 6 6 8 8 8 10 10 10 12 12
50 6 6 6 6 8 8 8 10 10 10 12
75 4 4 6 6 6 8 8 8 8 10 10
100 4 4 6 6 6 6 6 8 8 8 10
125 4 4 4 6 6 6 6 8 8 8 8
150 3 3 4 4 6 6 6 6 6 8 8
200 25 3 4 4 4 4 6 6 6 6 6
250 25 3 3 4 4 4 4 6 6 6 6
NOTES1 Steam nozzle sizes given in inches2 Recommended steam nozzle sizes based on 4000 to 5000 fpm steam velocity3 All standard steam nozzle sizes for 150 psig design pressure or greater are the sameas 125 psig operating pressure on the above table To increase or decrease the standardsize request the change with your local Cleaver-Brooks authorized representative4 Shaded area denotes special surge load baffles must be installed to avoid possible wa-ter carry-over5 For incremental operating pressures see Table I3-1 Steam Systems Fundamentals
Table A1-28 Recommended Steam Nozzle Size (for
4000 to 5000 fpm nozzle velocity)
Table A1-29 Recommended Non-Return Valve Size
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 4243
Model CBLE 125-800 HP Boilers
42
1 Shortest boiler room length (Dwg A) is obtained by allowing for possible future tube replacement (from front or rearof boiler) through a window or doorway Allowance is only made for minimum door swing at each end of the boilerThis arrangement provides sufficient aisle space at the front of the boiler but a ldquotightrdquo space condition at the rear
If space permits approximately 15 additional feet should be allowed at the rear for additional aisle and workingspace
2 Next shortest boiler room length (Dwg B) is obtained by allowing for possible future tube replacement from thefront of the boiler Allowance is only made for minimum door swing at the rear
If space permits approximately 15 additional feet should be allowed at the rear for additional aisle and workingspace
3 A slightly longer boiler room (Dwg C) is obtained by allowing for possible future tube replacement from the rear ofthe boiler Allowance for door swing at the front provides sufficient aisle and working space at the front
Figure A1-21 Boiler Room Length (Typical Layouts)
BOILER HP 125-200 250-350 400-800
Dimension A 82 93 102
Dimension B 115 141 171
NOTES1 Recommended Minimum Distance Between Boiler and Wall Dimen-
sion ldquoArdquo allows for a ldquoclearrdquo 42 aisle between the water col-umn on the boiler and the wall If space permits this aisle
should be widened 2 Recommended Minimum Distance Between BoilersDimension ldquoBrdquo between boilers allows for a ldquoclearrdquo aisle of42 - 125 -200 hp48 - 250-350 hp60 - 400-800 hpIf space permits this aisle should be widened
Figure A1-22 Boiler Room Width (Typical Layout)
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 4343
Model CBLE 125-800 HP Boilers
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 3643
Model CBLE 125-800 HP Boilers
36
5
6
S
1
3
42
PILOT GAS LINE
S
S
MAIN GAS LINE
M M
ToBurner
GasSupply
11
10
97
12138
14 15
FLOW
FLOW
Figure A1-15 Model CB-LE Gas Train Components
BOILER
HP
MODEL CB
SUPPLYANDRE-
TURNCONN SIZES
(IN)(NPT)
A(IN)
RECOMMENDED OIL LINEA
SIZES(STANDARD PIPE)
(IN - IPS)
STOR-AGE
TANK TOBOILER
OR PUMPCONNECT
PUMPTO
BOILER
RE-TURN
LINE TOTANK
125150 200
34 12-12 1 1 1
250300350
34 34 1 1 1
400500600
34 11-34 1 1 1
700800
1 11-34 1 1 1
NOTE See No 2 Oil Line Sizing Instruction for systems with other conditions A For suction line condition with a maximum of 10 Feet of lift and a
total of 100 feet of suction line
Figure A1-16 No2 Oil Connection Size Location and Recommended Line Sizes
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 3743
Model CBLE 125-800 HP Boilers
37
Figure A1-17 No 2 Oil Piping Single Boiler
Installation Remote Oil Pump
Figure A1-18 No 2 Oil Piping Multiple Boiler
Installation Remote Oil Pumps
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 3843
Model CBLE 125-800 HP Boilers
38
Figure A1-19 No 2 Oil Piping Multiple Boiler
Installation
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 3943
Model CBLE 125-800 HP Boilers
39
Figure A1-20 No 2 Oil Piping Typical Arrangement
Table A1-24 Model CB-LE Blowdown
Tank Sizing
BOILER HP WATER (GAL)
125 97
150 118
200 145
250 146
300 176
350 210
400 177
500 209
600 250
700 800 296
NOTE Quantity of water removed from boiler by lowering normal water line 4
BOILER
HP
HEATING SURFACE (SQ-FT)
FIRESIDE WATERSIDE
125 625 679
150 750 820
200 1000 1092
250 1250 1346
300 1500 1623
350 1750 1932
400 2000 2151
500 2500 2691
600 3000 3262
700 800 3500 3810
Table A1-25 Heating Surface Model CB-LE
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 4043
Model CBLE 125-800 HP Boilers
40
BOILER HPSTEAM VOLUME CU-FT
STEAM DISENGAGING AREASQ-IN
HIGH PRESSUREA LOW PRESSUREB HIGH PRESSUREA LOW PRESSUREB
125 254 366 5371 5887
150 307 443 6511 7138
200 377 544 7985 8752
250 492 706 7980 8695
300 595 853 9651 10516
350 709 1017 11507 12538
400 721 979 9793 10593
500 837 1137 11376 12303
600 1015 1378 13787 14911
700-800 1198 1627 16273 17600
NOTE Based on normal water levelA Based on 150 psig design pressureB Based on 15 psig design pressure
Table A1-26 Steam Volume and Disengaging Area
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 4143
Model CBLE 125-800 HP Boilers
41
BOILERHP
BOILERCAPACITY(LBSHR)
OPERATING PRESSURES (PSIG)
50 75 100 125 150 175 200 250
100 3450
2-12 2-12 NA NA NA NA NA NA
125 4313 3 2-12 2-12 2-12 NA NA NA NA
150 5175 3 3 2-12 2-12 2-12 2-12 NA NA
200 6900 3 3 3 3 3 2-12 2-12 2-12
250 8625 4 3 3 3 3 3 3 3
300 10350 4 4 4 3 3 3 3 3
350 12025 4 4 4 4 4 3 3 3
400 13800 5 4 4 4 4 4 4 3
500 17210 6 5 5 4 4 4 4 4
600 20700 6 6 5 5 5 4 4 4
700 24150 6 6 6 5 5 5 5 4
800 27600 6 6 6 6 6 5 5 5
NOTE Valve sizes (300 Flanges) given in inchesStandard Non-Return valve selections limited to a maximum 2 to 1 turndown(50 of full load) selections based on typical non-return valve sizing recommen-dations For final valve selection contact your C-B authorized representative Forhigh turndown applications see Boiler Book Section I3 Table I3-3 Indicates pressure drop of less than 75 psig All other selections are less than6 psig pressure drop
Boiler HP
OPERATINGPRESSURE
PSIG125 150 200 250 300 350 400 500 600 700 800
15 8 8 10 10 12 12 12 12 12 12 12
30 6 6 8 8 8 10 10 10 12 12 12
40 6 6 6 8 8 8 10 10 10 12 12
50 6 6 6 6 8 8 8 10 10 10 12
75 4 4 6 6 6 8 8 8 8 10 10
100 4 4 6 6 6 6 6 8 8 8 10
125 4 4 4 6 6 6 6 8 8 8 8
150 3 3 4 4 6 6 6 6 6 8 8
200 25 3 4 4 4 4 6 6 6 6 6
250 25 3 3 4 4 4 4 6 6 6 6
NOTES1 Steam nozzle sizes given in inches2 Recommended steam nozzle sizes based on 4000 to 5000 fpm steam velocity3 All standard steam nozzle sizes for 150 psig design pressure or greater are the sameas 125 psig operating pressure on the above table To increase or decrease the standardsize request the change with your local Cleaver-Brooks authorized representative4 Shaded area denotes special surge load baffles must be installed to avoid possible wa-ter carry-over5 For incremental operating pressures see Table I3-1 Steam Systems Fundamentals
Table A1-28 Recommended Steam Nozzle Size (for
4000 to 5000 fpm nozzle velocity)
Table A1-29 Recommended Non-Return Valve Size
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 4243
Model CBLE 125-800 HP Boilers
42
1 Shortest boiler room length (Dwg A) is obtained by allowing for possible future tube replacement (from front or rearof boiler) through a window or doorway Allowance is only made for minimum door swing at each end of the boilerThis arrangement provides sufficient aisle space at the front of the boiler but a ldquotightrdquo space condition at the rear
If space permits approximately 15 additional feet should be allowed at the rear for additional aisle and workingspace
2 Next shortest boiler room length (Dwg B) is obtained by allowing for possible future tube replacement from thefront of the boiler Allowance is only made for minimum door swing at the rear
If space permits approximately 15 additional feet should be allowed at the rear for additional aisle and workingspace
3 A slightly longer boiler room (Dwg C) is obtained by allowing for possible future tube replacement from the rear ofthe boiler Allowance for door swing at the front provides sufficient aisle and working space at the front
Figure A1-21 Boiler Room Length (Typical Layouts)
BOILER HP 125-200 250-350 400-800
Dimension A 82 93 102
Dimension B 115 141 171
NOTES1 Recommended Minimum Distance Between Boiler and Wall Dimen-
sion ldquoArdquo allows for a ldquoclearrdquo 42 aisle between the water col-umn on the boiler and the wall If space permits this aisle
should be widened 2 Recommended Minimum Distance Between BoilersDimension ldquoBrdquo between boilers allows for a ldquoclearrdquo aisle of42 - 125 -200 hp48 - 250-350 hp60 - 400-800 hpIf space permits this aisle should be widened
Figure A1-22 Boiler Room Width (Typical Layout)
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 4343
Model CBLE 125-800 HP Boilers
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 3743
Model CBLE 125-800 HP Boilers
37
Figure A1-17 No 2 Oil Piping Single Boiler
Installation Remote Oil Pump
Figure A1-18 No 2 Oil Piping Multiple Boiler
Installation Remote Oil Pumps
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 3843
Model CBLE 125-800 HP Boilers
38
Figure A1-19 No 2 Oil Piping Multiple Boiler
Installation
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 3943
Model CBLE 125-800 HP Boilers
39
Figure A1-20 No 2 Oil Piping Typical Arrangement
Table A1-24 Model CB-LE Blowdown
Tank Sizing
BOILER HP WATER (GAL)
125 97
150 118
200 145
250 146
300 176
350 210
400 177
500 209
600 250
700 800 296
NOTE Quantity of water removed from boiler by lowering normal water line 4
BOILER
HP
HEATING SURFACE (SQ-FT)
FIRESIDE WATERSIDE
125 625 679
150 750 820
200 1000 1092
250 1250 1346
300 1500 1623
350 1750 1932
400 2000 2151
500 2500 2691
600 3000 3262
700 800 3500 3810
Table A1-25 Heating Surface Model CB-LE
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 4043
Model CBLE 125-800 HP Boilers
40
BOILER HPSTEAM VOLUME CU-FT
STEAM DISENGAGING AREASQ-IN
HIGH PRESSUREA LOW PRESSUREB HIGH PRESSUREA LOW PRESSUREB
125 254 366 5371 5887
150 307 443 6511 7138
200 377 544 7985 8752
250 492 706 7980 8695
300 595 853 9651 10516
350 709 1017 11507 12538
400 721 979 9793 10593
500 837 1137 11376 12303
600 1015 1378 13787 14911
700-800 1198 1627 16273 17600
NOTE Based on normal water levelA Based on 150 psig design pressureB Based on 15 psig design pressure
Table A1-26 Steam Volume and Disengaging Area
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 4143
Model CBLE 125-800 HP Boilers
41
BOILERHP
BOILERCAPACITY(LBSHR)
OPERATING PRESSURES (PSIG)
50 75 100 125 150 175 200 250
100 3450
2-12 2-12 NA NA NA NA NA NA
125 4313 3 2-12 2-12 2-12 NA NA NA NA
150 5175 3 3 2-12 2-12 2-12 2-12 NA NA
200 6900 3 3 3 3 3 2-12 2-12 2-12
250 8625 4 3 3 3 3 3 3 3
300 10350 4 4 4 3 3 3 3 3
350 12025 4 4 4 4 4 3 3 3
400 13800 5 4 4 4 4 4 4 3
500 17210 6 5 5 4 4 4 4 4
600 20700 6 6 5 5 5 4 4 4
700 24150 6 6 6 5 5 5 5 4
800 27600 6 6 6 6 6 5 5 5
NOTE Valve sizes (300 Flanges) given in inchesStandard Non-Return valve selections limited to a maximum 2 to 1 turndown(50 of full load) selections based on typical non-return valve sizing recommen-dations For final valve selection contact your C-B authorized representative Forhigh turndown applications see Boiler Book Section I3 Table I3-3 Indicates pressure drop of less than 75 psig All other selections are less than6 psig pressure drop
Boiler HP
OPERATINGPRESSURE
PSIG125 150 200 250 300 350 400 500 600 700 800
15 8 8 10 10 12 12 12 12 12 12 12
30 6 6 8 8 8 10 10 10 12 12 12
40 6 6 6 8 8 8 10 10 10 12 12
50 6 6 6 6 8 8 8 10 10 10 12
75 4 4 6 6 6 8 8 8 8 10 10
100 4 4 6 6 6 6 6 8 8 8 10
125 4 4 4 6 6 6 6 8 8 8 8
150 3 3 4 4 6 6 6 6 6 8 8
200 25 3 4 4 4 4 6 6 6 6 6
250 25 3 3 4 4 4 4 6 6 6 6
NOTES1 Steam nozzle sizes given in inches2 Recommended steam nozzle sizes based on 4000 to 5000 fpm steam velocity3 All standard steam nozzle sizes for 150 psig design pressure or greater are the sameas 125 psig operating pressure on the above table To increase or decrease the standardsize request the change with your local Cleaver-Brooks authorized representative4 Shaded area denotes special surge load baffles must be installed to avoid possible wa-ter carry-over5 For incremental operating pressures see Table I3-1 Steam Systems Fundamentals
Table A1-28 Recommended Steam Nozzle Size (for
4000 to 5000 fpm nozzle velocity)
Table A1-29 Recommended Non-Return Valve Size
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 4243
Model CBLE 125-800 HP Boilers
42
1 Shortest boiler room length (Dwg A) is obtained by allowing for possible future tube replacement (from front or rearof boiler) through a window or doorway Allowance is only made for minimum door swing at each end of the boilerThis arrangement provides sufficient aisle space at the front of the boiler but a ldquotightrdquo space condition at the rear
If space permits approximately 15 additional feet should be allowed at the rear for additional aisle and workingspace
2 Next shortest boiler room length (Dwg B) is obtained by allowing for possible future tube replacement from thefront of the boiler Allowance is only made for minimum door swing at the rear
If space permits approximately 15 additional feet should be allowed at the rear for additional aisle and workingspace
3 A slightly longer boiler room (Dwg C) is obtained by allowing for possible future tube replacement from the rear ofthe boiler Allowance for door swing at the front provides sufficient aisle and working space at the front
Figure A1-21 Boiler Room Length (Typical Layouts)
BOILER HP 125-200 250-350 400-800
Dimension A 82 93 102
Dimension B 115 141 171
NOTES1 Recommended Minimum Distance Between Boiler and Wall Dimen-
sion ldquoArdquo allows for a ldquoclearrdquo 42 aisle between the water col-umn on the boiler and the wall If space permits this aisle
should be widened 2 Recommended Minimum Distance Between BoilersDimension ldquoBrdquo between boilers allows for a ldquoclearrdquo aisle of42 - 125 -200 hp48 - 250-350 hp60 - 400-800 hpIf space permits this aisle should be widened
Figure A1-22 Boiler Room Width (Typical Layout)
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 4343
Model CBLE 125-800 HP Boilers
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 3843
Model CBLE 125-800 HP Boilers
38
Figure A1-19 No 2 Oil Piping Multiple Boiler
Installation
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 3943
Model CBLE 125-800 HP Boilers
39
Figure A1-20 No 2 Oil Piping Typical Arrangement
Table A1-24 Model CB-LE Blowdown
Tank Sizing
BOILER HP WATER (GAL)
125 97
150 118
200 145
250 146
300 176
350 210
400 177
500 209
600 250
700 800 296
NOTE Quantity of water removed from boiler by lowering normal water line 4
BOILER
HP
HEATING SURFACE (SQ-FT)
FIRESIDE WATERSIDE
125 625 679
150 750 820
200 1000 1092
250 1250 1346
300 1500 1623
350 1750 1932
400 2000 2151
500 2500 2691
600 3000 3262
700 800 3500 3810
Table A1-25 Heating Surface Model CB-LE
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 4043
Model CBLE 125-800 HP Boilers
40
BOILER HPSTEAM VOLUME CU-FT
STEAM DISENGAGING AREASQ-IN
HIGH PRESSUREA LOW PRESSUREB HIGH PRESSUREA LOW PRESSUREB
125 254 366 5371 5887
150 307 443 6511 7138
200 377 544 7985 8752
250 492 706 7980 8695
300 595 853 9651 10516
350 709 1017 11507 12538
400 721 979 9793 10593
500 837 1137 11376 12303
600 1015 1378 13787 14911
700-800 1198 1627 16273 17600
NOTE Based on normal water levelA Based on 150 psig design pressureB Based on 15 psig design pressure
Table A1-26 Steam Volume and Disengaging Area
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 4143
Model CBLE 125-800 HP Boilers
41
BOILERHP
BOILERCAPACITY(LBSHR)
OPERATING PRESSURES (PSIG)
50 75 100 125 150 175 200 250
100 3450
2-12 2-12 NA NA NA NA NA NA
125 4313 3 2-12 2-12 2-12 NA NA NA NA
150 5175 3 3 2-12 2-12 2-12 2-12 NA NA
200 6900 3 3 3 3 3 2-12 2-12 2-12
250 8625 4 3 3 3 3 3 3 3
300 10350 4 4 4 3 3 3 3 3
350 12025 4 4 4 4 4 3 3 3
400 13800 5 4 4 4 4 4 4 3
500 17210 6 5 5 4 4 4 4 4
600 20700 6 6 5 5 5 4 4 4
700 24150 6 6 6 5 5 5 5 4
800 27600 6 6 6 6 6 5 5 5
NOTE Valve sizes (300 Flanges) given in inchesStandard Non-Return valve selections limited to a maximum 2 to 1 turndown(50 of full load) selections based on typical non-return valve sizing recommen-dations For final valve selection contact your C-B authorized representative Forhigh turndown applications see Boiler Book Section I3 Table I3-3 Indicates pressure drop of less than 75 psig All other selections are less than6 psig pressure drop
Boiler HP
OPERATINGPRESSURE
PSIG125 150 200 250 300 350 400 500 600 700 800
15 8 8 10 10 12 12 12 12 12 12 12
30 6 6 8 8 8 10 10 10 12 12 12
40 6 6 6 8 8 8 10 10 10 12 12
50 6 6 6 6 8 8 8 10 10 10 12
75 4 4 6 6 6 8 8 8 8 10 10
100 4 4 6 6 6 6 6 8 8 8 10
125 4 4 4 6 6 6 6 8 8 8 8
150 3 3 4 4 6 6 6 6 6 8 8
200 25 3 4 4 4 4 6 6 6 6 6
250 25 3 3 4 4 4 4 6 6 6 6
NOTES1 Steam nozzle sizes given in inches2 Recommended steam nozzle sizes based on 4000 to 5000 fpm steam velocity3 All standard steam nozzle sizes for 150 psig design pressure or greater are the sameas 125 psig operating pressure on the above table To increase or decrease the standardsize request the change with your local Cleaver-Brooks authorized representative4 Shaded area denotes special surge load baffles must be installed to avoid possible wa-ter carry-over5 For incremental operating pressures see Table I3-1 Steam Systems Fundamentals
Table A1-28 Recommended Steam Nozzle Size (for
4000 to 5000 fpm nozzle velocity)
Table A1-29 Recommended Non-Return Valve Size
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
42
1 Shortest boiler room length (Dwg A) is obtained by allowing for possible future tube replacement (from front or rearof boiler) through a window or doorway Allowance is only made for minimum door swing at each end of the boilerThis arrangement provides sufficient aisle space at the front of the boiler but a ldquotightrdquo space condition at the rear
If space permits approximately 15 additional feet should be allowed at the rear for additional aisle and workingspace
2 Next shortest boiler room length (Dwg B) is obtained by allowing for possible future tube replacement from thefront of the boiler Allowance is only made for minimum door swing at the rear
If space permits approximately 15 additional feet should be allowed at the rear for additional aisle and workingspace
3 A slightly longer boiler room (Dwg C) is obtained by allowing for possible future tube replacement from the rear ofthe boiler Allowance for door swing at the front provides sufficient aisle and working space at the front
Figure A1-21 Boiler Room Length (Typical Layouts)
BOILER HP 125-200 250-350 400-800
Dimension A 82 93 102
Dimension B 115 141 171
NOTES1 Recommended Minimum Distance Between Boiler and Wall Dimen-
sion ldquoArdquo allows for a ldquoclearrdquo 42 aisle between the water col-umn on the boiler and the wall If space permits this aisle
should be widened 2 Recommended Minimum Distance Between BoilersDimension ldquoBrdquo between boilers allows for a ldquoclearrdquo aisle of42 - 125 -200 hp48 - 250-350 hp60 - 400-800 hpIf space permits this aisle should be widened
Figure A1-22 Boiler Room Width (Typical Layout)
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 4343
Model CBLE 125-800 HP Boilers
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 3943
Model CBLE 125-800 HP Boilers
39
Figure A1-20 No 2 Oil Piping Typical Arrangement
Table A1-24 Model CB-LE Blowdown
Tank Sizing
BOILER HP WATER (GAL)
125 97
150 118
200 145
250 146
300 176
350 210
400 177
500 209
600 250
700 800 296
NOTE Quantity of water removed from boiler by lowering normal water line 4
BOILER
HP
HEATING SURFACE (SQ-FT)
FIRESIDE WATERSIDE
125 625 679
150 750 820
200 1000 1092
250 1250 1346
300 1500 1623
350 1750 1932
400 2000 2151
500 2500 2691
600 3000 3262
700 800 3500 3810
Table A1-25 Heating Surface Model CB-LE
7262019 CBLE Boiler Book
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Model CBLE 125-800 HP Boilers
40
BOILER HPSTEAM VOLUME CU-FT
STEAM DISENGAGING AREASQ-IN
HIGH PRESSUREA LOW PRESSUREB HIGH PRESSUREA LOW PRESSUREB
125 254 366 5371 5887
150 307 443 6511 7138
200 377 544 7985 8752
250 492 706 7980 8695
300 595 853 9651 10516
350 709 1017 11507 12538
400 721 979 9793 10593
500 837 1137 11376 12303
600 1015 1378 13787 14911
700-800 1198 1627 16273 17600
NOTE Based on normal water levelA Based on 150 psig design pressureB Based on 15 psig design pressure
Table A1-26 Steam Volume and Disengaging Area
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 4143
Model CBLE 125-800 HP Boilers
41
BOILERHP
BOILERCAPACITY(LBSHR)
OPERATING PRESSURES (PSIG)
50 75 100 125 150 175 200 250
100 3450
2-12 2-12 NA NA NA NA NA NA
125 4313 3 2-12 2-12 2-12 NA NA NA NA
150 5175 3 3 2-12 2-12 2-12 2-12 NA NA
200 6900 3 3 3 3 3 2-12 2-12 2-12
250 8625 4 3 3 3 3 3 3 3
300 10350 4 4 4 3 3 3 3 3
350 12025 4 4 4 4 4 3 3 3
400 13800 5 4 4 4 4 4 4 3
500 17210 6 5 5 4 4 4 4 4
600 20700 6 6 5 5 5 4 4 4
700 24150 6 6 6 5 5 5 5 4
800 27600 6 6 6 6 6 5 5 5
NOTE Valve sizes (300 Flanges) given in inchesStandard Non-Return valve selections limited to a maximum 2 to 1 turndown(50 of full load) selections based on typical non-return valve sizing recommen-dations For final valve selection contact your C-B authorized representative Forhigh turndown applications see Boiler Book Section I3 Table I3-3 Indicates pressure drop of less than 75 psig All other selections are less than6 psig pressure drop
Boiler HP
OPERATINGPRESSURE
PSIG125 150 200 250 300 350 400 500 600 700 800
15 8 8 10 10 12 12 12 12 12 12 12
30 6 6 8 8 8 10 10 10 12 12 12
40 6 6 6 8 8 8 10 10 10 12 12
50 6 6 6 6 8 8 8 10 10 10 12
75 4 4 6 6 6 8 8 8 8 10 10
100 4 4 6 6 6 6 6 8 8 8 10
125 4 4 4 6 6 6 6 8 8 8 8
150 3 3 4 4 6 6 6 6 6 8 8
200 25 3 4 4 4 4 6 6 6 6 6
250 25 3 3 4 4 4 4 6 6 6 6
NOTES1 Steam nozzle sizes given in inches2 Recommended steam nozzle sizes based on 4000 to 5000 fpm steam velocity3 All standard steam nozzle sizes for 150 psig design pressure or greater are the sameas 125 psig operating pressure on the above table To increase or decrease the standardsize request the change with your local Cleaver-Brooks authorized representative4 Shaded area denotes special surge load baffles must be installed to avoid possible wa-ter carry-over5 For incremental operating pressures see Table I3-1 Steam Systems Fundamentals
Table A1-28 Recommended Steam Nozzle Size (for
4000 to 5000 fpm nozzle velocity)
Table A1-29 Recommended Non-Return Valve Size
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 4243
Model CBLE 125-800 HP Boilers
42
1 Shortest boiler room length (Dwg A) is obtained by allowing for possible future tube replacement (from front or rearof boiler) through a window or doorway Allowance is only made for minimum door swing at each end of the boilerThis arrangement provides sufficient aisle space at the front of the boiler but a ldquotightrdquo space condition at the rear
If space permits approximately 15 additional feet should be allowed at the rear for additional aisle and workingspace
2 Next shortest boiler room length (Dwg B) is obtained by allowing for possible future tube replacement from thefront of the boiler Allowance is only made for minimum door swing at the rear
If space permits approximately 15 additional feet should be allowed at the rear for additional aisle and workingspace
3 A slightly longer boiler room (Dwg C) is obtained by allowing for possible future tube replacement from the rear ofthe boiler Allowance for door swing at the front provides sufficient aisle and working space at the front
Figure A1-21 Boiler Room Length (Typical Layouts)
BOILER HP 125-200 250-350 400-800
Dimension A 82 93 102
Dimension B 115 141 171
NOTES1 Recommended Minimum Distance Between Boiler and Wall Dimen-
sion ldquoArdquo allows for a ldquoclearrdquo 42 aisle between the water col-umn on the boiler and the wall If space permits this aisle
should be widened 2 Recommended Minimum Distance Between BoilersDimension ldquoBrdquo between boilers allows for a ldquoclearrdquo aisle of42 - 125 -200 hp48 - 250-350 hp60 - 400-800 hpIf space permits this aisle should be widened
Figure A1-22 Boiler Room Width (Typical Layout)
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 4343
Model CBLE 125-800 HP Boilers
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 4043
Model CBLE 125-800 HP Boilers
40
BOILER HPSTEAM VOLUME CU-FT
STEAM DISENGAGING AREASQ-IN
HIGH PRESSUREA LOW PRESSUREB HIGH PRESSUREA LOW PRESSUREB
125 254 366 5371 5887
150 307 443 6511 7138
200 377 544 7985 8752
250 492 706 7980 8695
300 595 853 9651 10516
350 709 1017 11507 12538
400 721 979 9793 10593
500 837 1137 11376 12303
600 1015 1378 13787 14911
700-800 1198 1627 16273 17600
NOTE Based on normal water levelA Based on 150 psig design pressureB Based on 15 psig design pressure
Table A1-26 Steam Volume and Disengaging Area
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 4143
Model CBLE 125-800 HP Boilers
41
BOILERHP
BOILERCAPACITY(LBSHR)
OPERATING PRESSURES (PSIG)
50 75 100 125 150 175 200 250
100 3450
2-12 2-12 NA NA NA NA NA NA
125 4313 3 2-12 2-12 2-12 NA NA NA NA
150 5175 3 3 2-12 2-12 2-12 2-12 NA NA
200 6900 3 3 3 3 3 2-12 2-12 2-12
250 8625 4 3 3 3 3 3 3 3
300 10350 4 4 4 3 3 3 3 3
350 12025 4 4 4 4 4 3 3 3
400 13800 5 4 4 4 4 4 4 3
500 17210 6 5 5 4 4 4 4 4
600 20700 6 6 5 5 5 4 4 4
700 24150 6 6 6 5 5 5 5 4
800 27600 6 6 6 6 6 5 5 5
NOTE Valve sizes (300 Flanges) given in inchesStandard Non-Return valve selections limited to a maximum 2 to 1 turndown(50 of full load) selections based on typical non-return valve sizing recommen-dations For final valve selection contact your C-B authorized representative Forhigh turndown applications see Boiler Book Section I3 Table I3-3 Indicates pressure drop of less than 75 psig All other selections are less than6 psig pressure drop
Boiler HP
OPERATINGPRESSURE
PSIG125 150 200 250 300 350 400 500 600 700 800
15 8 8 10 10 12 12 12 12 12 12 12
30 6 6 8 8 8 10 10 10 12 12 12
40 6 6 6 8 8 8 10 10 10 12 12
50 6 6 6 6 8 8 8 10 10 10 12
75 4 4 6 6 6 8 8 8 8 10 10
100 4 4 6 6 6 6 6 8 8 8 10
125 4 4 4 6 6 6 6 8 8 8 8
150 3 3 4 4 6 6 6 6 6 8 8
200 25 3 4 4 4 4 6 6 6 6 6
250 25 3 3 4 4 4 4 6 6 6 6
NOTES1 Steam nozzle sizes given in inches2 Recommended steam nozzle sizes based on 4000 to 5000 fpm steam velocity3 All standard steam nozzle sizes for 150 psig design pressure or greater are the sameas 125 psig operating pressure on the above table To increase or decrease the standardsize request the change with your local Cleaver-Brooks authorized representative4 Shaded area denotes special surge load baffles must be installed to avoid possible wa-ter carry-over5 For incremental operating pressures see Table I3-1 Steam Systems Fundamentals
Table A1-28 Recommended Steam Nozzle Size (for
4000 to 5000 fpm nozzle velocity)
Table A1-29 Recommended Non-Return Valve Size
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 4243
Model CBLE 125-800 HP Boilers
42
1 Shortest boiler room length (Dwg A) is obtained by allowing for possible future tube replacement (from front or rearof boiler) through a window or doorway Allowance is only made for minimum door swing at each end of the boilerThis arrangement provides sufficient aisle space at the front of the boiler but a ldquotightrdquo space condition at the rear
If space permits approximately 15 additional feet should be allowed at the rear for additional aisle and workingspace
2 Next shortest boiler room length (Dwg B) is obtained by allowing for possible future tube replacement from thefront of the boiler Allowance is only made for minimum door swing at the rear
If space permits approximately 15 additional feet should be allowed at the rear for additional aisle and workingspace
3 A slightly longer boiler room (Dwg C) is obtained by allowing for possible future tube replacement from the rear ofthe boiler Allowance for door swing at the front provides sufficient aisle and working space at the front
Figure A1-21 Boiler Room Length (Typical Layouts)
BOILER HP 125-200 250-350 400-800
Dimension A 82 93 102
Dimension B 115 141 171
NOTES1 Recommended Minimum Distance Between Boiler and Wall Dimen-
sion ldquoArdquo allows for a ldquoclearrdquo 42 aisle between the water col-umn on the boiler and the wall If space permits this aisle
should be widened 2 Recommended Minimum Distance Between BoilersDimension ldquoBrdquo between boilers allows for a ldquoclearrdquo aisle of42 - 125 -200 hp48 - 250-350 hp60 - 400-800 hpIf space permits this aisle should be widened
Figure A1-22 Boiler Room Width (Typical Layout)
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 4343
Model CBLE 125-800 HP Boilers
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 4143
Model CBLE 125-800 HP Boilers
41
BOILERHP
BOILERCAPACITY(LBSHR)
OPERATING PRESSURES (PSIG)
50 75 100 125 150 175 200 250
100 3450
2-12 2-12 NA NA NA NA NA NA
125 4313 3 2-12 2-12 2-12 NA NA NA NA
150 5175 3 3 2-12 2-12 2-12 2-12 NA NA
200 6900 3 3 3 3 3 2-12 2-12 2-12
250 8625 4 3 3 3 3 3 3 3
300 10350 4 4 4 3 3 3 3 3
350 12025 4 4 4 4 4 3 3 3
400 13800 5 4 4 4 4 4 4 3
500 17210 6 5 5 4 4 4 4 4
600 20700 6 6 5 5 5 4 4 4
700 24150 6 6 6 5 5 5 5 4
800 27600 6 6 6 6 6 5 5 5
NOTE Valve sizes (300 Flanges) given in inchesStandard Non-Return valve selections limited to a maximum 2 to 1 turndown(50 of full load) selections based on typical non-return valve sizing recommen-dations For final valve selection contact your C-B authorized representative Forhigh turndown applications see Boiler Book Section I3 Table I3-3 Indicates pressure drop of less than 75 psig All other selections are less than6 psig pressure drop
Boiler HP
OPERATINGPRESSURE
PSIG125 150 200 250 300 350 400 500 600 700 800
15 8 8 10 10 12 12 12 12 12 12 12
30 6 6 8 8 8 10 10 10 12 12 12
40 6 6 6 8 8 8 10 10 10 12 12
50 6 6 6 6 8 8 8 10 10 10 12
75 4 4 6 6 6 8 8 8 8 10 10
100 4 4 6 6 6 6 6 8 8 8 10
125 4 4 4 6 6 6 6 8 8 8 8
150 3 3 4 4 6 6 6 6 6 8 8
200 25 3 4 4 4 4 6 6 6 6 6
250 25 3 3 4 4 4 4 6 6 6 6
NOTES1 Steam nozzle sizes given in inches2 Recommended steam nozzle sizes based on 4000 to 5000 fpm steam velocity3 All standard steam nozzle sizes for 150 psig design pressure or greater are the sameas 125 psig operating pressure on the above table To increase or decrease the standardsize request the change with your local Cleaver-Brooks authorized representative4 Shaded area denotes special surge load baffles must be installed to avoid possible wa-ter carry-over5 For incremental operating pressures see Table I3-1 Steam Systems Fundamentals
Table A1-28 Recommended Steam Nozzle Size (for
4000 to 5000 fpm nozzle velocity)
Table A1-29 Recommended Non-Return Valve Size
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 4243
Model CBLE 125-800 HP Boilers
42
1 Shortest boiler room length (Dwg A) is obtained by allowing for possible future tube replacement (from front or rearof boiler) through a window or doorway Allowance is only made for minimum door swing at each end of the boilerThis arrangement provides sufficient aisle space at the front of the boiler but a ldquotightrdquo space condition at the rear
If space permits approximately 15 additional feet should be allowed at the rear for additional aisle and workingspace
2 Next shortest boiler room length (Dwg B) is obtained by allowing for possible future tube replacement from thefront of the boiler Allowance is only made for minimum door swing at the rear
If space permits approximately 15 additional feet should be allowed at the rear for additional aisle and workingspace
3 A slightly longer boiler room (Dwg C) is obtained by allowing for possible future tube replacement from the rear ofthe boiler Allowance for door swing at the front provides sufficient aisle and working space at the front
Figure A1-21 Boiler Room Length (Typical Layouts)
BOILER HP 125-200 250-350 400-800
Dimension A 82 93 102
Dimension B 115 141 171
NOTES1 Recommended Minimum Distance Between Boiler and Wall Dimen-
sion ldquoArdquo allows for a ldquoclearrdquo 42 aisle between the water col-umn on the boiler and the wall If space permits this aisle
should be widened 2 Recommended Minimum Distance Between BoilersDimension ldquoBrdquo between boilers allows for a ldquoclearrdquo aisle of42 - 125 -200 hp48 - 250-350 hp60 - 400-800 hpIf space permits this aisle should be widened
Figure A1-22 Boiler Room Width (Typical Layout)
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 4343
Model CBLE 125-800 HP Boilers
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 4243
Model CBLE 125-800 HP Boilers
42
1 Shortest boiler room length (Dwg A) is obtained by allowing for possible future tube replacement (from front or rearof boiler) through a window or doorway Allowance is only made for minimum door swing at each end of the boilerThis arrangement provides sufficient aisle space at the front of the boiler but a ldquotightrdquo space condition at the rear
If space permits approximately 15 additional feet should be allowed at the rear for additional aisle and workingspace
2 Next shortest boiler room length (Dwg B) is obtained by allowing for possible future tube replacement from thefront of the boiler Allowance is only made for minimum door swing at the rear
If space permits approximately 15 additional feet should be allowed at the rear for additional aisle and workingspace
3 A slightly longer boiler room (Dwg C) is obtained by allowing for possible future tube replacement from the rear ofthe boiler Allowance for door swing at the front provides sufficient aisle and working space at the front
Figure A1-21 Boiler Room Length (Typical Layouts)
BOILER HP 125-200 250-350 400-800
Dimension A 82 93 102
Dimension B 115 141 171
NOTES1 Recommended Minimum Distance Between Boiler and Wall Dimen-
sion ldquoArdquo allows for a ldquoclearrdquo 42 aisle between the water col-umn on the boiler and the wall If space permits this aisle
should be widened 2 Recommended Minimum Distance Between BoilersDimension ldquoBrdquo between boilers allows for a ldquoclearrdquo aisle of42 - 125 -200 hp48 - 250-350 hp60 - 400-800 hpIf space permits this aisle should be widened
Figure A1-22 Boiler Room Width (Typical Layout)
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 4343
Model CBLE 125-800 HP Boilers
7262019 CBLE Boiler Book
httpslidepdfcomreaderfullcble-boiler-book 4343
Model CBLE 125-800 HP Boilers