for pressurevessels,steam boiler etc. (1.0mpa)
TRANSCRIPT
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FU
LL
BO
RE
TY
PE
PRESSURE DIVISION
Code No.
1
2
3
4
5
6
7
8
9
A
B
C
D
0.1
Over 0.1~0.12
Over 0.12~0.15
Over 0.15~0.18
Over 0.18~0.21
Over 0.21~0.25
Over 0.25~0.3
Over 0.3~0.36
Over 0.36~0.43
Over 0.43~0.5
Over 0.5~0.65
Over 0.65~0.8
Over 0.8~1.0
Pressure division
SPECIFICATIONS
DIMENSIONS
Model name
Code name
Cap type
Applicable fluid
Valve body pressure test
Set pressure range
Applicable temperature
End connection
Materials
Size
SF-14L
SF14L-G □SF14L-G □
※ □Code No. of pressure division is required in .
With lever Without lever
25~150(1 ~6 )" "
0.1~1.0MPa
- -5~230 5~184 *℃ ℃1.
Inlet Flanged JIS10KFF (Thickness is based on table of DIMENSIONS)*Outlet Flanged JIS10KFF
2.:
:
Body(Cast iron), Disc & Seat ring(Stainless steel)
Hydraulic 1.5MPa
*
*
1. Applicable temperature Max. 230 is available upon your request.2. Flange codes JIS B8210 for inlet is also available upon your request.
℃
Flange code JIS 10K
SF-13 SF -13L SF-14
SF13-G □SF13-G □ SF13L-G □SF13L-G □ SF14-G □SF14-G □
Air Steam Air, gases & liquids Steam
Size
Inlet Throat dia. Outlet× ×Inlet Throat dia. Outlet× ×
di dt do× ×di dt do× ×
25(1 ) 19 40(1 )" "× × ½25(1 ) 19 40(1 )" "× × ½
40(1 ) 65(2 )½ ½" "× ×40(1 ) 65(2 )½ ½" "× ×
50(2 ) 80(3 )" "× ×50(2 ) 80(3 )" "× ×
65(2 ) 100(4 )½" "× ×65(2 ) 100(4 )½" "× ×
80(3 ) 125(5 )" "× ×80(3 ) 125(5 )" "× ×
100(4 ) 150(6 )" "× ×100(4 ) 150(6 )" "× ×
125(5 ) 200(8 )" "× ×125(5 ) 200(8 )" "× ×
150(6 ) 200(8 )" "× ×150(6 ) 200(8 )" "× ×
Throat dia.Throat dia.
Mass(kg)
SF-13SF-13L
Type
SF-13SF-13L
Type
SF-14SF-14L
Type
SF-14SF-14L
Type
Throat areaThroat area Lift Face to FaceFace to Face HeightThickness of
flangeThickness of
flangeSeat
opening dia.Seat
opening dia.
25302530
34383438
43494349
55615561
69766976
86958695
105115105115
D L1L1 L2L2 H
35
45
58
71
88
111
134
22
25
30
34
38
43
49
55
61
69
76
86
95
105
115
19
490.6
706.5
907.4
1133.5
1451.4
1884.7
2374.6
2920.9
3737.3
4534.1
5805.8
7084.6
8654.6
10381.6
283.3
6.5
7.5
8.5
9.5
11.0
12.5
14.0
15.5
17.5
19.0
21.5
24.0
26.5
29.0
5.0
125
135
155
175
205
225
255
105
120
125
140
160
180
210
220
95
291
342
397
481
554
687
815
227 22
24
26
28
30
32
34
36
20
26
41
61
91
147
226
19
26
40
58
91
145
220
11 11
SF-13 Type
SF-14 Type
Depending on nominal diameter, the structure of the valve may be differentfrom what is shown in the drawing.
CONSTRUCTION
for Pressure , Steam Boiler etc. (1.0MPa)Vessels
CONSTRUCTION OF SF-13L, 14L VALVE PART
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Applicable Laws/Regulations and Formulas for Calculating Relieving CapacityCoefficients assigned to equations may be those specified in applicable laws/regulations or in-house data. ※In-house data
(1) For steam
(2) For gasses
Qm=5.246CK A (P+0.1) 0.9d'
Qm: capacity (kg/h)A: area (mm )
Lift type:
Nominal RelievingSeat opening
Full bore type:
2
D: Seat opening diameter (mm): Lift (mm)
d: Throat diameter (mm)ℓ
P: pressure (MPa)(Select the larger one of set pressure 1.1 or set pressure +0.02)
C: Coefficient determined according the nature of steam (see Tab.1 in page 87)
K ': coefficient
Lift typeFull bore type
Relieving
Relieving
:0.96:0.864
1: Set pressure is less than 0.4MPa, at saturated pressure0.98: Set pressure is larger than 0.4MPa, at saturated pressureIn the case of super heated steam, see Tab.1, page 87.
d
※
Calculating maximum flow-in gas using the following formula:
G=0.0028 dυ2ρ
(More than 20 for saturated steam, more than 30 for super-heated steam,or move than 10 for common gas)
ρ: Density of gas (kg/m )d: Internal diameter of pipe (mm)
2
(3) For water/hot water (also applicable for hot water with temperature higher than 120 )℃
(1) In case of searching from relieving capacity:
(2)In case of searching from thermal input of pressure vessel orthermal out put of hot water boiler:
(If (P +0.1) >(P P ) in equations (1) and (2), replace (P P ) with (P +0.1) )1 - -κ κ1 2 1 2 1
P : pressure (MPa) (see Note)1 Relieving
Full bore type: select the larger one of set pressure 1.15 or set pressure +0.034
P : Outlet pressure (MPa)
: coefficient (see Fig.2 in page 89)
2
κ Correction
Lift type: set pressure 1.1
For SL-37~40, see page 69.
Relief valve (type E ED): select the larger one of set pressure 1.25
or set pressure +0.034
・
Δt : Di fference between the saturated temperature of r
pressure P and the temperature of hot water at in let . ( )
e l ieving
1 ℃
γ1: Density hot water (kg/l) (see Tab.3 in page 88)at inlet
Q : Thermal input of pressure vessel or t output of hot wa-
ter boi ler (kJ/h)
hermal
ε: Coefficient of volumetrical expansion for water (l/ )
(see Tab.4 in page 88)
℃
C : Specific heat of water at constant pressure (kJ/kg ) (see Tab.4 in
page 88)
℃
In the case of full bore type safety valve or relief valve, make sure
the pressure does not exceed 1.1 times maximum working pres-
sure of pressure vessel or hot water boiler (or maximum working
pressure +0.034).
C': Coefficient according to and P /P (See Fig.3, page 89)2 1κ
K : coefficient
M: Molecular weight of gas (see Tab.2, page 87)P : pressure (MPa A)
(Select the larger absolute pressure of set pressure 1.1 or abso-lute pressure of set pressure +0.02)
: Adiabatic exponent (Cρ/C ) (See Tab.2, page 87).The value is considered 1 if it is not clear.P : Back pressure (MPa A)
Lift typeFull bore type
κ υ
2
d
1
' Relieving
Relieving
:0.96:0.864
※
･
･
S=87.7 (P +0.1)1 κγ1
W
A= Dπ ℓ
4A=
ZTMQm=C K 'A P 0.9d 1'
S=87.7C (P +0.1)1 κγ1
Qε
S: Seat opening area (mm )
W: Relieving capacity of valve (kg/h)
2
A= Dπ ℓ
4A=
Z: Compression coefficient: 1 (see Fig.1 in page 89)T: Absolute temperature (K) of gasses at relieving pressure
※
Qm: Nominal Relieving capacity (kg/h)
A: Seat opening area (mm )
Lift type:
Full bore type:
D: Seat opening diameter (mm)
: Lift (mm)
d: Throat diameter (mm)
2
ℓ
G: Flow in gas (kg/h)
: Velocity of gas (m/sec)υ
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Applicable Laws/Regulations and CapacityFormulas for Calculating RelievingCoefficients assigned to equations may be those specified in applicable laws/regulations or in-house data. ※In-house data
(1) For steam
(2) For hot water
(3) For Dowtherm boiler
(Applicable when temperature is less than120 . If temperature is higher than 120 ,then use the formula described in (1))
℃ ℃
(Applicable when temperature is less than120 . If temperature is higher than 120 ,then use the formula described in (1))
℃ ℃
Qm=5.246CK A (P+0.1) 0.9d'
A= Dπ ℓ
4A=
Qm: capacity (kg/h)
A: area (mm )
Lift type:
Full bore type:
D: Seat diameter (mm)
: Lift (mm)
d: Throat diameter (mm)
Nominal Relieving
Seat opening
opening
2
ℓ
P: pressure (MPa)Relieving(Select the larger one of set pressure 1.1 or set pressure +0.02)
C: Coefficient according the nature of steam (see Tab.1
in page 87)
K : coefficient
Lift type
Full bore type
※
1: set pressure is less than 0.4MPa, at saturated pressure
0.98: set pressure is larger than 0.4MPa, at saturated pressure
In the case of overheated steam, see Tab.1, page 87.
d' Relieving
:0.96
:0.864
(1) In case of searching from relieving capacity:
(2)In case of searching from thermal input of pressure vessel orthermal out put of hot water boiler:
(If (P +0.1) >(P P ) in equations (1) and (2), replace (P P ) with (P +0.1) )1 - -κ κ1 2 1 2 1
P : pressure (MPa) (see Note)1 Relieving
Full bore type: select the larger one of set pressure 1.15 or set pressure +0.034
P : Outlet pressure (MPa)
: coefficient (see Fig.2 in page 89)
2
κ Correction
Lift type: set pressure 1.1
For SL-37~40, see page 69.
Relief valve (type E ED): select the larger one of set pressure 1.25
or set pressure+0.034
・
Δt : Di fference between the saturated temperature of rel ieving
pressure P and1 the temperature of hot water at in let . ( )℃
γ1: (see Tab.3 in page 88)Density hot water at inlet (kg/l)
Q:
(kJ/h)
Thermal input of pressure vessel or thermal output of hot wa-
ter boi ler
ε: Coefficient of volumetrical expansion for water (l/ )
(see Tab.4 in page 88)
℃
C: Specific heat of water at constant pressure (kJ/kg ) (see Tab.4 in
page 88)
℃
S=87.7 (P +0.1)1 κγ1
W
S=87.7C (P +0.1)1 κγ1
Qε
S: area (mm )
W: capacity of valve (kg/h)
2Seat opening
Relieving
It is necessary installing safety valve when watertemperature exceeds 120 . The formula is as thefollowing:
℃
NOTE
Qm=5.246CK 'A(P+0.1) 0.9d
In this case, the required relieving capacity (kg/h)of safety valve can be calculated using the following
:formula
W: capacity (kg/h)Q: Thermal output of hot water boiler (kJ/h)
Relieving
h : Enthalpy of water supply (kJ/kg)2
h1: Enthalpy of saturated steam that is equivalent tothe maximum working pressure of boiler (kJ/kg).
ε: Coefficient of volumetrical expansion for water ℃(l/ )
(see Tab.4 in page 88)
C: Specific heat of water at constant pressure (kJ/kg )(see Tab.4 in page 88)
℃
W= h h1 2-
Q
W=CQε
Qm: Nominal capacity (kg/h)
A: area (mm )
Lift type:
Full bore type:
D: Seat diameter (mm)
: Lift (mm)
d : Throat diameter (mm)
Z: Compression coefficient: 1 (see Fig.1 in page 89)
T: Absolute temperature (K) of gasses at pressure
relieving
Seat opening
opening
relieving
2
ℓ
※
C': Coefficient according to and (See Fig.3, page 89)
: Adiabatic exponent ( ) (See Tab.2, page 87).
The value is considered 1 if it is not clear.
P : Back pressure (MPa A)
: R coefficient
Lift type
Full bore type
M: Molecular weight of gas (see Tab.2, page 87)
P : R pressure (MP A)
κ
κ
2
1
K elieving
:0.96
:0.864
elieving a
d'※
(Select the larger absolute pressure of set pressure 1.1 or absolute pres-sure of set pressure +0.02)
ZTM
Qm=C K 'A P 0.9d 1'
A= Dπ ℓ
4A=
C C
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1.24
1.66
1.05
1.06
1.41
1.41
1.32
1.31
1.20
1.20
1.40
1.30
1.04
1.40
1.07
1.13
1.33
1.29
1.09
1.15
1.05
―
TABLE1. COEFFICIENT ACCORDING TO PROPERTY OF STEAM
TABLE2. GAS PROPERTY
Saturatedtemperature
Temp.℃
Temp.℃
AbsolutepressureMpa
AbsolutepressureMpa
* Intermediate values of pressure and temperature in this table are calculated by proportional method. However, In case of Absolute pressure less than 0.5MPa refer at absolute pressure 0.5MPa.Example. Incase of Absolute pressure 1.2MPa, Temperature:230 , C=0.960: ℃
*
*
1. For air, Tc=132.45(K) and Pc=3.769(MPa A)2. When obtaining the compression factor Z of hydrogen and helium, add 8 to both Tc and add 0.8 to both Pc.
･
460440420400380360340320300280260240220200
Physical propertyPhysical property
NameChemical symbolChemical symbol
Adiabatic indexCp/Cvκ
Adiabatic indexCp/Cvκ
Critical temp.TcK
Critical temp.TcK
Critical pressurePc
MPa
Critical pressurePc
MPaMolecular weightMolecular weight
C H
NH
Ar
C H
iso-C H
n-C H
CS
CO
CO
Cl
C H
n-C H
C H
C H OH
C H
He
n-CH (CH ) CH
n-C H
HCl
H
H S
CH
CH OH
CH Cl
N
N O
n-CH (CH ) CH
O
n-CH (CH ) CH
n-CH CH CH
H O
SO
C H CH
CH CHCH
C H
2 2
3
6 6
4 10
4 10
2
2
2
6 12
10 22
2 6
2 5
2 4
3 2 5 3
6 14
2
2
4
3
3
2
2
3 2 7 3
2
3 2 3 3
3 2 3
2
2
6 5 3
3 2
8 18
0
0
0.5
1.0
1.5
2.0
2.5
3.0
4.0
5.0
6.0
7.0
8.0
9.0
10.0
12.0
14.0
16.0
18.0
20.0
1.005
0.987
0.977
0.972
0.969
0.967
0.965
0.966
0.968
0.971
0.975
0.980
0.986
0.999
1.016
1.036
1.063
1.094
0.996
0.981
0.976
0.972
0.983
0.970
0.967
0.951
0.960
0.972
0.964
0.961
0.962
0.931
0.938
0.947
0.955
0.961
0.957
0.958
0.913
0.919
0.925
0.932
0.937
0.949
0.954
0.955
0.962
0.896
0.901
0.906
0.912
0.918
0.924
0.934
0.953
0.953
0.958
0.967
0.879
0.884
0.888
0.893
0.898
0.903
0.915
0.927
0.941
0.954
0.956
0.962
0.971
0.864
0.868
0.872
0.876
0.880
0.885
0.894
0.904
0.911
0.924
0.937
0.957
0.961
0.975
1.002
0.894
0.853
0.856
0.860
0.863
0.867
0.875
0.884
0.891
0.901
0.912
0.926
0.936
0.964
0.980
1.000
1.038
0.835
0.838
0.841
0.845
0.848
0.851
0.857
0.865
0.872
0.881
0.888
0.897
0.909
0.926
0.956
0.988
1.004
1.028
0.822
0.825
0.828
0.830
0.833
0.836
0.841
0.848
0.854
0.861
0.868
0.876
0.883
0.903
0.920
0.942
0.972
1.006
0.817
0.819
0.822
0.826
0.832
0.838
0.844
0.850
0.856
0.863
0.876
0.893
0.907
0.929
0.953
0.804
0.806
0.808
0.813
0.817
0.822
0.827
0.833
0.838
0.844
0.857
0.868
0.883
0.895
0.914
0.792
0.793
0.795
0.799
0.803
0.808
0.812
0.817
0.822
0.827
0.838
0.846
0.858
0.873
0.885
Acetylene
Air
Ammonia
Argon
Benzene
Isobutane
Normal butane
Carbon disulfide
Carbon dioxide
Carbon monoxide
Chlorine
Cyclohexane
Normal decane
Ethane
Ethyl alcohol
Ethylene
Helium
Normal heptane
Normal hexane
Hydrogen chloride
Hydrogen
Hydrogen sulfide
Methane
Methyl alcohol
Methyl chloride
Nitrogen
Nitrogen suboxide
Normal nonane
Oxygen
Normal pentane
Normal propane
Steam
Sulfur dioxide
Toluene
Propylene
Octane
26.04
28.96
17.03
39.94
78.11
58.12
58.12
76.14
44.01
28.01
70.90
84.16
142.29
30.07
46.07
28.05
4.00
100.21
86.18
36.46
2.16
34.08
16.04
32.04
50.49
28.01
44.01
128.26
32.00
72.15
44.11
18.02
64.06
92.14
42.08
114.23
1.28
1.40
1.31
1.67
1.12
1.10
1.09
1.21
1.29
1.40
1.36
1.09
1.03
1.19
308.5
405.6
150.8
562.8
408.2
425.5
549.2
304.2
133.0
417.2
481.6
618.4
305.4
516.2
282.7
5.3
540.2
507.7
324.7
33.2
373.6
190.9
512.6
416.3
126.3
309.3
594.7
154.7
470.1
370.0
647.1
593.6
593.6
365.1
―
―
―
―
6.25
11.46
4.94
4.96
3.70
3.75
7.65
7.63
3.62
7.83
4.06
2.13
4.89
6.38
5.09
0.24
2.73
3.03
8.43
1.32
9.16
4.71
8.02
6.75
3.44
7.39
2.30
5.12
3.35
4.27
22.12
4.23
4.23
4.60
W: Relieving capacity (kg/h)A: Seat opening area (mm )
Lift type:Full bore type:
D: Seat diameter (mm): Lift (mm)
d: Throat diameter (mm)
2
openingℓ
G: Specific gravityP: pressure (MPa)K: Flow coefficient
Lift type: 0.55 for upper guide type0.45 for blade type
Full bore type: 0.60
Relieving
[ ]
Applicable Laws/Regulations and Formulas for Calculating Relieving CapacityCoefficients assigned to equations may be those specified in applicable laws/regulations or in-house data. ※In-house data
PGW=161 AK
A= Dπ ℓA=0.785d
2
The value may be different dependingon type and accumulation
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TABLE3. HOT WATER SPECIFIC GRAVITY
PressureMPa A·
PressureMPa A·
Temp.℃Temp.℃
Expansion coefficient εExpansion coefficient εℓ/℃ℓ/℃Temp.℃Temp.℃
Specific heat CkJ/kg℃
Specific heat CkJ/kg℃
Remarks:Intermediate values in this table are calculated by proportional method.In case of below 40 :1* ℃
TABLE4. COEFFICIENT OF VOLUMETRICALEXPANSION FOR WATER
Remarks:Intermediate values in this table are calculated by proportional method.
C P /P2 1P /P2 1C P /P2 1P /P2 1C P /P2 1P /P2 1C P /P2 1P /P2 1
0.1 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.5
40
50
60
70
80
90
100
110
120
130
140
150
160
170
180
190
200
210
220
0.992
0.998
0.983
0.978
0.972
0.965
0.992
0.988
0.983
0.978
0.972
0.965
0.958
0.951
0.943
0.992
0.988
0.983
0.978
0.972
0.965
0.958
0.951
0.943
0.935
0.926
0.993
0.988
0.983
0.978
0.972
0.965
0.958
0.951
0.943
0.935
0.926
0.917
0.993
0.988
0.983
0.978
0.972
0.965
0.958
0.951
0.943
0.935
0.926
0.917
0.907
0.897
0.993
0.988
0.984
0.978
0.972
0.966
0.959
0.951
0.943
0.935
0.926
0.917
0.908
0.897
0.993
0.989
0.984
0.978
0.972
0.966
0.959
0.951
0.943
0.935
0.926
0.917
0.908
0.898
0.887
0.993
0.989
0.984
0.978
0.972
0.966
0.959
0.951
0.943
0.935
0.926
0.917
0.908
0.898
0.887
0.876
0.993
0.989
0.984
0.978
0.972
0.966
0.959
0.951
0.944
0.935
0.927
0.917
0.908
0.898
0.887
0.876
0.865
0.993
0.989
0.984
0.978
0.972
0.966
0.959
0.951
0.944
0.935
0.927
0.918
0.908
0.898
0.887
0.876
0.865
0.993
0.989
0.984
0.979
0.973
0.966
0.959
0.952
0.944
0.935
0.927
0.918
0.908
0.898
0.888
0.877
0.865
0.853
0.993
0.989
0.984
0.979
0.973
0.966
0.959
0.952
0.944
0.936
0.927
0.918
0.908
0.898
0.888
0.877
0.865
0.853
0.993
0.989
0.984
0.979
0.973
0.966
0.959
0.952
0.944
0.936
0.927
0.918
0.908
0.898
0.888
0.877
0.865
0.853
0.841
40
50
60
70
80
90
100
110
120
130
140
150
160
170
180
190
200
210
220
Below40℃
Below40℃
4.150
4.179
4.181
4.185
4.190
4.197
4.205
4.216
4.229
4.245
4.263
4.285
4.310
4.339
4.317
4.408
4.449
4.497
4.551
4.613
0.00039
0.00039
0.00046
0.00053
0.00060
0.00066
0.00072
0.00079
0.00085
0.00090
0.00097
0.00103
0.00110
0.00118
0.00126
0.00134
0.00145
0.00155
0.00165
0.00179
1.00
1.02
1.04
1.06
1.08
1.10
1.12
1.14
1.16
1.18
2380
2410
2420
2440
2460
2480
2490
2500
2520
2540
0.606
0.602
0.597
0.593
0.588
0.584
0.580
0.576
0.571
0.567
1.20
1.22
1.24
1.26
1.28
1.30
1.32
1.34
1.36
1.38
2550
2570
2590
2600
2620
2630
2650
2660
2680
2690
0.563
0.559
0.556
0.552
0.549
0.545
0.542
0.538
0.535
0.531
1.40
1.42
1.44
1.46
1.48
1.50
1.52
1.54
1.56
1.58
2700
2710
2720
2730
2750
2760
2770
2790
2800
2810
0.528
0.525
0.522
0.518
0.515
0.512
0.509
0.505
0.502
0.499
1.60
1.62
1.64
1.66
1.68
1.70
1.80
1.90
2.00
2.20
2820
2830
2850
2860
2870
2880
2940
2980
3030
3130
0.496
0.493
0.490
0.488
0.485
0.482
0.468
0.456
0.444
0.422
Applicable Laws/Regulations and Formulas for Calculating Relieving Capacity
* In case κ takes middle value. Obtain P /P with interpolation and disregard below 4 places to decimals, and disregard below decimal point for C.2 1
SA
FE
TY
VA
LV
ES
,R
EL
IEF
VA
LV
ES
SA
FE
TY
VA
LV
ES
,R
EL
IEF
VA
LV
ES
RELIEVING CAPACITY (PRESSURE VESSEL CONSTRUCTION CODE)RELIEVING CAPACITY <Steam>
mm
D
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
2.0
2.1
2.2
2.3
2.4
2.5
2.6
2.7
2.8
2.9
3.0
00
50
.10
.20
.30
.40
.50
.60
.70
.80
.91
.01
.11
.21
.31
.41
.51
.61
.71
.81
.92
.02
.12
.22
.32
.42
.52
.62
.72
.82
.93
.0.
mm
SF
-1H
, 2H
SF
19
L, 2
0L
-
SF
13
L, 1
4L
- SF
13
L
SF
16
L(0
.11
MP
a)
SF
17
LS
F1
8L
(12
MP
a)
SF
19
LS
F2
0L
(23
MP
a)
- - - - - -~ ~ ~
20
25
40
50
15
20
25
25
20
25
40
50
15
20
25
25
40
50
65
80
10
0
12
5
15
0
40
50
65
80
10
0
12
5
15
0
15
19
30
38
11 15
19
19
25
30
34
38
43
49
55
61
69
76
86
95
10
5
115
15
19
30
38
11 15
19
19
25
30
34
38
43
49
55
61
69
76
86
95
10
5
115
17
6.6
28
3.3
70
6.5
113
3.5
94
.9
17
6.6
28
3.3
28
3.3
49
0.6
70
6.5
90
7.4
113
3.5
14
51
.4
18
84
.7
23
74
.6
29
20
.9
37
37
.3
45
34
.1
58
05
.8
70
84
.6
86
54
.6
10
38
1.6
17
6.6
28
3.3
70
6.5
113
3.5
94
.9
17
6.6
28
3.3
28
3.3
49
0.6
70
6.5
90
7.4
113
3.5
14
51
.4
18
84
.7
23
74
.6
29
20
.9
37
37
.3
45
34
.1
58
05
.8
70
84
.6
86
54
.6
10
38
1.6
18
.8
31
.4
54
.9
80
.3
12
5.6
20
4.1
34
6.9
44
7.4
49
2.3
78
5.0
78
0.2
12
56
.0
13
47
.0
17
89
.8
20
09
.6
18
.8
31
.4
54
.9
80
.3
12
5.6
20
4.1
34
6.9
44
7.4
49
2.3
78
5.0
78
0.2
12
56
.0
13
47
.0
17
89
.8
20
09
.6
15 20 25 32 40 50 65 75 78.4
100
99.4
125
130
150
1 60
15 20 25 32 40 50 65 75 78.4
100
99.4
125
130
150
1 60
15
20
25
32
40
50
65
75
80
10
0
12
5
15
0
15
20
25
32
40
50
65
75
80
10
0
12
5
15
0
15
8
25
4
63
4
10
10
85
.1
15
8
25
4
25
4
44
0
63
4
81
4
10
10
13
00
16
90
21
30
26
20
33
50
40
60
52
10
63
50
77
60
93
10
30
9
49
6
12
30
19
80
16
6
30
9
49
6
49
6
86
0
12
30
15
90
19
80
25
40
33
00
41
60
51
20
65
50
79
50
10
10
0
12
40
0
15
10
0
18
20
0
38
1
611
15
20
24
40
20
4
38
1
611
611
10
50
15
20
19
50
24
40
31
30
40
60
51
20
63
00
80
60
97
80
12
50
0
15
20
0
18
60
0
22
40
0
45
8
73
6
18
30
29
40
24
6
45
8
73
6
73
6
12
70
18
30
23
50
29
40
37
70
48
90
61
70
75
80
97
10
117
00
15
00
0
18
40
0
22
40
0
26
90
0
53
6
86
0
21
40
34
40
28
8
53
6
86
0
86
0
14
90
21
40
27
50
34
40
44
00
57
20
72
10
88
70
113
00
13
70
0
17
60
0
21
50
0
26
20
0
31
50
0
61
4
98
5
24
50
39
40
33
0
61
4
98
5
98
5
17
00
24
50
31
50
39
40
50
40
65
50
82
50
10
10
0
12
90
0
15
70
0
20
10
0
24
60
0
30
10
0
36
10
0
69
1
110
0
27
60
44
40
37
1
69
1
110
0
110
0
19
20
27
60
35
50
44
40
56
80
73
80
93
00
114
00
14
60
0
17
70
0
22
70
0
27
70
0
33
90
0
40
60
0
76
9
12
30
30
70
49
30
41
3
76
9
12
30
12
30
21
30
30
70
39
50
49
30
63
20
82
10
10
30
0
12
70
0
16
20
0
19
70
0
25
20
0
30
80
0
37
70
0
45
20
0
84
7
13
50
33
80
54
30
45
5
84
7
13
50
13
50
23
50
33
80
43
50
54
30
69
60
90
40
113
00
14
00
0
17
90
0
21
70
0
27
80
0
33
90
0
41
50
0
49
80
0
92
4
14
80
36
90
59
30
49
6
92
4
14
80
10
0
16
00
40
10
64
30
53
8
10
00
16
00
10
80
17
30
43
20
69
30
58
0
10
80
17
30
115
0
18
50
46
30
74
30
62
2
115
0
18
5
12
30
19
80
46
40
79
20
66
3
12
30
19
80
13
10
21
00
52
50
84
20
70
5
13
10
21
00
13
90
22
30
55
60
89
20
74
7
13
90
22
30
14
60
23
50
58
70
94
20
78
9
14
60
23
50
15
40
24
80
61
80
99
20
83
0
15
40
24
80
16
20
26
00
64
90
10
40
0
87
2
16
2
26
00
91
4
17
00
27
20
95
6
17
70
28
50
99
7
18
50
29
70
10
30
19
30
31
00
10
80
20
10
32
20
112
0
20
80
33
50
116
0
21
60
34
70
12
00
22
40
36
00
12
40
23
20
37
20
12
80
24
00
38
50
23
0
36
9
92
2
14
70
12
3
23
0
36
9
36
9
64
0
92
2
118
0
14
70
18
90
24
60
30
90
38
10
48
70
59
10
75
70
92
40
112
00
13
50
0
14
.4
24
.1
42
.3
61
.8
96
.7
15
7
26
7
34
4
37
9
60
4
60
1
97
6
10
30
13
70
15
40
18
.7
31
.3
54
.7 80
12
5
20
3
34
5
44
6
49
0
78
2
77
7
12
50
13
40
17
80
20
00
27
.2
45
.5
79
.6
116
18
2
29
6
50
3
64
8
71
4
113
0
113
0
18
20
19
50
25
90
29
10
36
.6
61
.1
10
6
15
6
24
4
39
7
67
6
87
1
95
9
15
20
15
20
24
40
26
20
34
80
39
10
45
75
.3
13
1
19
2
30
1
48
9
83
2
10
70
118
0
18
80
18
70
30
10
32
30
42
90
48
20
54
.2
90
.6
15
8
23
1
36
2
58
9
10
00
12
90
14
20
22
60
22
50
36
20
38
80
51
60
58
00
63
.4
10
6
18
5
27
1
42
4
68
9
117
0
15
10
16
60
26
50
26
30
42
40
45
40
60
40
67
80
72
.6
12
1
21
2
31
0
48
5
78
8
13
40
17
20
19
00
30
30
30
10
48
50
52
00
69
10
77
60
81
.8
16
3
23
8
34
9
54
6
88
8
15
10
19
40
21
40
34
10
33
90
54
60
58
60
77
90
87
40
91
15
2
26
5
38
8
60
8
98
8
16
70
21
60
23
80
38
00
37
70
60
80
65
20
86
60
97
20
10
0
16
7
29
2
42
8
66
9
10
80
18
40
23
80
26
20
41
80
41
50
66
90
71
70
95
40
10
70
0
10
9
18
2
31
9
46
7
73
0
118
0
20
10
26
00
118
19
8
34
6
50
6
79
2
12
80
21
80
28
20
12
7
21
3
37
3
54
5
85
3
13
80
23
50
30
40
13
6
22
8
39
9
54
8
91
4
14
80
25
20
32
50
15
5
25
9
45
3
66
3
10
30
16
80
28
60
36
90
16
4
27
4
48
0
70
2
10
90
17
80
30
30
39
10
17
3
29
0
50
7
74
1
116
0
18
80
32
00
41
30
18
2
30
5
53
4
78
1
12
20
19
80
33
70
43
50
19
2
32
0
56
0
82
0
12
80
20
80
35
40
45
70
20
1
33
6
58
7
85
9
13
40
21
80
37
10
47
80
21
0
35
1
61
4
89
8
14
00
22
80
38
80
50
00
21
9
36
6
64
1
93
8
14
60
23
80
40
50
52
20
22
8
38
2
66
8
97
7
15
20
24
80
42
20
54
40
23
7
39
7
69
5
10
10
15
90
25
80
43
90
56
60
24
7
41
2
72
1
10
50
16
50
26
80
45
60
58
80
25
6
42
8
74
8
10
90
17
10
27
80
47
30
61
00
26
5
44
3
77
5
113
0
17
70
28
80
49
00
63
10
27
4
45
8
80
2
117
0
18
30
29
80
50
60
65
30
28
3
47
4
82
9
12
10
18
90
30
80
52
30
67
50
25
60
36
90
47
50
59
30
76
00
98
70
12
40
0
15
20
0
19
50
0
23
70
0
30
40
0
37
10
0
45
30
0
54
30
0
27
80
40
10
51
50
64
30
82
30
10
60
0
13
40
0
16
50
0
21
20
0
25
70
0
32
90
0
40
20
0
49
10
0
58
90
0
30
00
43
20
55
50
69
30
88
70
115
00
14
50
0
17
80
0
22
80
0
27
70
0
35
50
0
43
30
0
52
90
0
63
40
0
32
10
46
30
59
40
74
30
95
10
12
30
0
15
50
0
19
10
0
24
50
0
29
70
0
38
00
0
46
40
0
56
70
0
68
00
0
34
30
49
40
63
40
79
20
10
10
0
13
10
0
16
60
0
20
40
0
26
10
0
31
70
0
40
60
0
49
50
0
60
50
0
72
60
0
36
40
52
50
67
40
84
20
10
70
0
14
00
0
17
60
0
21
70
0
27
70
0
33
70
0
43
10
0
52
60
0
64
30
0
77
10
0
38
60
55
60
71
40
89
20
114
00
14
80
0
18
70
0
23
00
0
29
40
0
35
70
0
45
70
0
55
70
0
68
10
0
81
70
0
40
70
58
70
75
40
94
20
12
00
0
15
60
0
19
70
0
24
20
0
31
00
0
37
70
0
48
20
0
58
90
0
71
90
0
86
30
0
42
90
61
80
79
40
99
20
12
70
0
16
50
0
20
70
0
25
50
0
32
70
0
39
60
0
50
80
0
62
00
0
75
70
0
90
80
0
54
10
64
90
83
40
10
40
0
13
30
0
17
30
0
21
80
0
26
80
0
34
30
0
41
60
0
53
30
0
65
10
0
79
50
0
95
40
0
47
20
68
00
87
40
10
90
0
13
90
0
18
10
0
22
80
0
28
10
0
36
00
0
43
60
0
55
90
0
68
20
0
83
30
0
10
00
00
49
40
711
0
91
40
114
00
14
60
0
18
90
0
23
90
0
29
40
0
37
60
0
45
60
0
58
40
0
71
30
0
87
10
0
10
40
00
51
50
74
20
95
40
119
00
15
20
0
19
80
0
24
90
0
30
70
0
39
20
0
47
60
0
61
00
0
74
40
0
90
90
0
10
90
00
5370
7730
9930
1240
0
1580
0
2060
0
2600
0
3190
0
4090
0
4960
0
6350
0
7760
0
9470
0
1130
00
5580
8040
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61
00
27
1
45
3
79
3
116
0
18
10
29
40
50
10
64
60
28
6
47
9
83
7
12
20
19
10
311
0
52
90
68
20
30
1
50
4
88
1
12
80
20
10
32
70
55
70
71
80
31
7
52
9
92
6
13
50
211
0
34
40
58
50
75
40
33
2
55
4
97
0
14
10
22
10
36
00
61
30
79
00
34
7
58
0
10
10
14
80
23
20
37
70
64
10
82
60
36
2
60
5
10
50
15
40
24
20
39
30
66
90
86
20
37
7
63
0
110
0
16
10
25
20
41
00
69
70
89
90
39
2
65
6
114
0
16
70
26
20
42
60
72
50
93
50
42
3
70
6
12
30
18
00
28
20
45
90
78
10
10
00
0
43
8
73
2
12
80
18
70
29
20
47
60
80
90
10
40
0
45
3
75
7
13
20
19
30
30
30
49
20
83
70
10
70
0
46
8
78
2
13
60
20
00
31
30
50
80
86
50
111
00
40
8
68
1
119
0
17
40
27
20
44
30
75
30
97
10
75
40
12
00
0
17
10
0
81
70
13
00
0
18
60
0
88
00
14
00
0
20
00
0
94
40
15
10
0
21
50
0
10
00
0
16
10
0
22
90
0
10
70
0
17
10
0
24
40
0
113
00
18
10
0
25
80
0
119
00
19
10
0
27
30
0
12
60
0
20
10
0
28
70
0
13
20
0
211
00
30
10
0
13
80
0
22
10
0
31
60
0
14
50
0
23
20
0
33
00
0
15
10
0
24
20
0
34
50
0
15
70
0
25
20
0
35
90
0
16
40
0
26
20
0
37
40
0
17
00
0
27
20
0
38
80
0
17
60
0
28
20
0
40
20
0
18
30
0
29
20
0
41
70
0
18
90
0
30
30
0
43
10
0
19
50
0
31
30
0
44
60
0
LIF
TT
YP
E
FU
LL
BO
RE
TY
PE
{}
ZTM
Qm
=C
K'A
P0
.9d
1'
C'=
27
.0, P
isth
ela
rge
ro
ne
of (
set p
ress
ure
+0
.02
+0
.1)
or
(se
t pre
ssu
re1
K'=
0.8
64
, M=
28
.96
, Z=
1, T
=2
93
1.1
+0
.1)
d
{}
ZTM
Qm
=C
K'A
P0
.9d
1'
C'=
27
.0, P
isth
ela
rge
ro
ne
of (
set p
ress
ure
+0
.02
+0
.1)
or
(se
t pre
ssu
re1
K'=
0.9
6, M
=2
8.9
6, Z
=1
, T=
29
31
.1+
0.1
)d
RELIEVING CAPACITY (BOILER CONSTRUCTION CODE)RELIEVING CAPACITY <Steam>
mm
D
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
2.0
2.1
2.2
2.3
2.4
2.5
2.6
2.7
2.8
2.9
3.0
00
50
.10
.20
.30
.40
.50
.60
.70
.80
.91
.01
.11
.21
.31
.41
.51
.61
.71
.81
.92
.02
.12
.22
.32
.42
.52
.62
.72
.82
.93
.0.
mm
SF
-1H
, 2H
SF
-19
L, 2
0L
SF
-13
L, 1
4L
SF
-13
L
SF
-16
L(0
.1~
1M
Pa
)
SF
-17
LS
F-1
8L
(1~
2M
Pa
)
SF
-19
LS
F-2
0L
(2~
3M
Pa
)
20
25
40
50
15
20
25
25
20
25
40
50
15
20
25
25
40
50
65
80
10
0
12
5
15
0
40
50
65
80
10
0
12
5
15
0
15
19
30
38
11 15
19
19
25
30
34
38
43
49
55
61
69
76
86
95
10
5
115
15
19
30
38
11 15
19
19
25
30
34
38
43
49
55
61
69
76
86
95
10
5
115
17
6.6
28
3.3
70
6.5
113
3.5
94
.9
17
6.6
28
3.3
28
3.3
49
0.6
70
6.5
90
7.4
113
3.5
14
51
.4
18
84
.7
23
74
.6
29
20
.9
37
37
.3
45
34
.1
58
05
.8
70
84
.6
86
54
.6
10
38
1.6
17
6.6
28
3.3
70
6.5
113
3.5
94
.9
17
6.6
28
3.3
28
3.3
49
0.6
70
6.5
90
7.4
113
3.5
14
51
.4
18
84
.7
23
74
.6
29
20
.9
37
37
.3
45
34
.1
58
05
.8
70
84
.6
86
54
.6
10
38
1.6
18
.8
31
.4
54
.9
80
.3
12
5.6
20
4.1
34
6.9
44
7.4
49
2.3
78
5.0
78
0.2
12
56
.0
13
47
.0
17
89
.8
20
09
.6
18
.8
31
.4
54
.9
80
.3
12
5.6
20
4.1
34
6.9
44
7.4
49
2.3
78
5.0
78
0.2
12
56
.0
13
47
.0
17
89
.8
20
09
.6
15 20 25 32 40 50 65 75 78.4
100
99.4
125
130
150
1 60
15 20 25 32 40 50 65 75 78.4
100
99.4
125
130
150
1 60
15
20
25
32
40
50
65
75
80
10
0
12
5
15
0
15
20
25
32
40
50
65
75
80
10
0
12
5
15
0
15
8
25
4
63
4
10
10
85
.1
15
8
25
4
25
4
44
0
63
4
81
4
10
10
13
00
16
90
21
30
26
20
33
50
40
60
52
10
63
50
77
60
93
10
29
4
47
2
117
0
18
90
15
8
29
4
47
2
47
2
81
8
117
0
15
10
18
90
24
20
31
40
39
60
48
70
62
30
75
60
96
80
118
00
14
40
0
17
30
0
36
1
57
9
14
40
23
20
19
4
36
1
57
9
57
9
10
00
14
40
18
50
23
20
29
70
38
50
48
60
59
70
76
40
92
80
118
00
14
50
0
17
70
0
21
20
0
43
4
69
6
17
30
27
80
23
3
43
4
69
6
69
6
12
00
17
30
22
30
27
80
35
60
46
30
58
30
71
80
91
80
111
00
14
20
0
17
40
0
21
20
0
25
50
0
50
6
81
3
20
20
32
50
27
2
50
6
81
3
81
3
14
00
20
20
26
00
32
50
41
60
54
00
68
10
83
80
10
70
0
13
00
0
16
60
0
20
30
0
24
80
0
29
70
0
57
9
92
9
23
10
37
20
311
57
9
92
9
92
9
16
10
23
10
29
70
37
20
47
60
61
80
77
90
95
80
12
20
0
14
80
0
19
00
0
23
20
0
28
40
0
34
00
0
65
2
10
40
26
00
41
80
35
0
65
2
10
40
10
40
18
10
26
00
33
50
41
80
53
60
69
60
87
70
10
70
0
13
80
0
16
70
0
21
40
0
26
10
0
31
90
0
38
30
0
72
5
116
0
29
00
46
50
38
9
72
5
116
0
116
0
20
10
29
00
37
20
46
50
59
50
77
30
97
40
119
00
15
30
0
18
60
0
23
80
0
29
00
0
35
50
0
42
60
0
79
7
12
70
31
90
51
20
42
8
79
7
12
70
12
70
22
10
31
90
40
90
51
20
65
50
85
10
10
70
0
13
10
0
16
80
0
20
40
0
26
20
0
32
00
0
39
00
0
46
80
0
98
70
13
90
34
80
55
80
46
7
87
0
13
90
24
10
34
80
44
70
55
80
71
50
92
90
117
00
14
30
0
18
40
0
22
30
0
28
60
0
34
90
0
42
60
0
511
00
94
3
15
10
37
70
60
50
50
6
94
3
15
10
26
20
37
70
48
40
60
50
77
50
10
00
0
12
60
0
15
60
0
19
90
0
24
20
0
31
00
0
37
80
0
46
20
0
55
40
0
10
10
16
20
40
60
65
20
54
5
10
10
16
20
28
20
40
60
52
10
65
20
83
40
10
80
0
13
60
0
16
80
0
21
40
0
26
00
0
33
30
0
40
70
0
49
70
0
59
70
0
10
80
17
40
43
50
69
80
58
5
10
80
17
40
30
20
43
50
55
90
69
80
89
40
116
00
14
60
0
18
00
0
23
00
0
27
90
0
35
70
0
43
60
0
53
30
0
63
90
0
116
0
18
60
46
40
74
50
62
4
116
0
18
60
32
20
46
40
59
60
74
50
95
40
12
30
0
15
60
0
19
20
0
24
50
0
29
80
0
38
10
0
46
50
0
56
90
0
68
20
0
12
30
19
70
49
30
79
20
66
3
12
30
19
70
34
20
49
30
63
40
79
20
10
10
0
13
10
0
16
50
0
20
40
0
26
10
0
31
60
0
40
50
0
49
50
0
60
40
0
72
50
0
13
00
20
90
52
20
83
80
70
2
13
00
20
90
36
30
52
20
67
10
83
80
10
70
0
13
90
0
17
50
0
21
60
0
27
60
0
33
50
0
42
90
0
52
40
0
64
00
0
76
80
0
13
70
22
10
55
10
88
50
74
1
13
70
22
10
38
30
55
10
70
80
88
50
113
00
14
70
0
18
50
0
22
80
0
29
10
0
35
40
0
45
30
0
55
30
0
67
60
0
81
00
0
14
50
23
20
58
00
93
20
78
0
15
40
23
20
40
30
58
00
74
60
93
20
119
00
15
40
0
19
50
0
24
00
0
30
70
0
37
20
0
47
70
0
58
20
0
711
00
85
30
0
15
20
24
40
61
00
97
80
81
9
15
20
24
40
42
30
61
00
78
30
97
80
12
50
0
16
20
0
20
50
0
25
20
0
32
20
0
39
10
0
50
10
0
611
00
74
70
0
89
60
0
85
8
15
90
25
60
44
30
63
90
82
00
10
20
0
13
10
0
17
00
0
21
40
0
24
60
0
33
80
0
41
00
0
52
50
0
64
00
0
78
20
0
93
90
0
89
7
16
70
26
70
46
40
66
80
85
80
10
70
0
13
70
0
17
80
0
22
40
0
27
60
0
35
30
0
42
80
0
54
90
0
67
00
0
81
80
0
98
10
0
936
1740
2790
4840
6970
8950
1110
0
1430
0
1860
0
2340
0
2880
0
3680
0
4470
0
5730
0
6990
0
8540
0
1020
00
975
1810
2910
5040
7260
9320
1160
0
1490
0
1930
0
2440
0
3000
0
3840
0
4660
0
5960
0
7280
0
8890
0
1060
00
1010
1880
3020
5240
7550
9700
1210
0
1550
0
2010
0
2530
0
3120
0
3990
0
4840
0
6200
0
5750
0
9250
0
1110
00
1050
1960
3140
5440
7840
1000
0
1250
0
1610
0
2090
0
2630
0
3240
0
4150
0
5030
0
6440
0
7860
0
9610
0
1150
00
1090
2030
3260
5650
8130
1040
0
1300
0
1670
0
2170
0
2730
0
3360
0
4300
0
5220
0
6680
0
8150
0
9960
0
1190
00
1130
2100
3370
5850
8420
1080
0
1350
0
1730
0
2240
0
2830
0
3480
0
4450
0
5400
0
6920
0
8450
0
1030
00
1230
00
1170
2170
3490
6050
8710
1110
0
1390
0
1790
0
2320
0
2930
0
3600
0
4610
0
5590
0
7160
0
8740
0
1060
00
1280
00
1210
2250
3610
6250
9000
1150
0
1440
0
1850
0
2400
0
3020
0
3720
0
4760
0
5780
0
7400
0
9030
0
1100
00
1320
00
22
0
35
3
88
1
14
10
118
22
0
35
3
35
3
61
2
88
1
113
0
14
10
18
10
23
50
29
60
36
40
46
60
56
50
72
40
88
40
10
80
0
12
90
0
14
.4
24
.1
42
.3
61
.8
96
.7
15
7
26
7
34
4
37
9
60
4
60
1
97
6
10
30
13
70
15
40
18
.7
31
.3
54
.7 80
12
5
20
3
34
5
44
6
49
0
78
2
77
7
12
50
13
40
17
80
20
00
26
43
.5
76
.1
111
17
4
28
3
48
1
62
0
68
2
10
80
10
80
17
40
18
60
24
80
27
80
34
.8
58
.2
10
1
14
8
23
2
37
8
64
3
82
9
91
2
14
50
14
40
23
20
24
90
33
10
37
20
42
.7
71
.4
12
4
18
2
28
5
46
4
78
8
10
10
111
0
17
80
17
70
28
50
30
60
40
70
45
70
51
.3
85
.7
14
9
21
9
34
3
55
7
94
7
12
20
13
40
21
40
21
30
34
30
36
70
48
80
54
80
59
.9
10
0
17
5
25
6
40
0
65
0
110
0
14
20
15
70
25
00
24
80
40
00
42
90
57
00
64
00
68
.5
114
20
0
29
2
45
8
74
4
12
60
16
30
17
90
28
60
28
40
45
80
49
10
65
20
73
20
77
.1
12
8
22
5
32
9
51
5
83
7
14
20
18
30
20
20
32
20
32
00
51
50
55
20
73
40
82
40
85
.7
14
3
25
0
36
6
57
2
93
1
15
80
20
40
22
40
35
80
35
50
57
20
61
40
81
60
91
60
94
.3
15
7
27
5
40
3
63
0
10
20
17
40
22
40
24
70
39
40
39
10
63
00
67
60
89
80
10
00
0
10
2
17
1
30
0
43
9
68
7
111
0
18
90
24
50
111
18
6
32
5
47
6
74
5
12
10
20
50
26
50
12
0
20
0
35
0
51
3
80
2
13
00
22
10
28
50
12
8
21
5
37
6
55
0
86
0
13
90
23
70
30
60
14
5
24
3
42
6
62
3
97
5
15
80
26
90
34
70
15
4
25
8
54
1
66
0
10
30
16
70
28
50
36
70
16
3
27
2
47
6
69
6
10
90
17
70
30
10
38
80
17
1
28
6
50
1
73
3
114
0
18
60
31
60
40
80
18
0
30
1
52
6
77
0
12
00
19
50
33
20
42
90
18
8
31
5
55
1
80
7
12
60
20
50
34
80
44
90
19
7
32
9
57
6
84
3
13
10
21
40
36
40
47
00
20
6
34
4
62
0
88
0
13
70
22
30
38
00
49
00
21
4
35
8
62
7
91
7
14
30
23
30
39
60
511
0
22
3
37
3
65
2
94
5
14
90
24
20
41
20
53
10
23
1
38
7
67
7
99
0
15
40
25
10
42
80
55
20
24
0
40
1
70
2
10
20
16
00
26
10
44
30
57
20
24
9
41
6
72
7
10
60
16
60
27
00
45
90
59
30
25
7
43
0
75
2
110
0
17
20
27
90
47
50
16
30
26
6
44
4
77
7
113
0
17
70
28
90
49
10
63
30
13
7
22
9
40
1
58
6
91
7
14
90
25
30
32
60
42
90
68
70
98
00
46
50
74
50
10
60
0
50
10
80
20
114
00
53
70
86
00
12
20
0
57
30
91
70
13
00
0
60
90
97
50
13
80
0
65
40
10
30
0
14
70
0
68
10
10
90
0
15
50
0
71
70
114
00
16
30
0
75
30
12
00
0
17
10
0
78
90
12
60
0
17
90
0
82
40
13
10
0
18
80
0
86
00
13
70
0
19
60
0
89
60
14
30
0
20
40
0
93
20
14
90
0
21
20
0
96
80
15
40
0
22
00
0
10
00
0
16
00
0
22
90
0
10
40
0
16
60
0
23
70
0
10
70
0
17
20
0
24
50
0
111
00
17
70
0
25
30
0
LIF
TT
YP
E
FU
LL
BO
RE
TY
PE
D:S
ea
t op
en
ing
dia
.(m
m),
A:S
ea
t op
en
ing
are
a(m
m)
2
{}
C=
0.9
8(C
=1
ifse
t pre
ssu
re<
0.4
MP
a),
K'=
0.8
64
P=
set p
ress
ure
1.0
3(I
nca
seo
f se
t pre
ssu
re<
0.1
MP
a,P
=se
t pre
ssu
re+
0.0
2M
Pa
)d
Qm
=5
.24
6C
K'A
0.9
d(P
+0
.1)
{}
C=
0.9
8(C
=1
ifse
t pre
ssu
re<
0.4
MP
a),
K'=
0.9
6P
=se
t pre
ssu
re1
.03
(d
Inca
seo
f se
t pre
ssu
re<
0.1
MP
a,P
=se
t pre
ssu
re+
0.0
2M
Pa
)Q
m=
5.2
46
CK
'A0
.9d
(P+
0.1
)
SA
FE
TY
VA
LV
ES
,R
EL
IEF
VA
LV
ES
RELIEVING CAPACITY (VENN STANDARD)RELIEVING CAPACITY <Liquids>(Except Hot water and water)
mm
D0
.10
.20
.30
.40
.50
.60
.70
.80
.91
.01
.11
.21
.31
.41
.51
.61
.71
.81
.92
.02
.12
.22
.32
.42
.52
.62
.72
.82
.93
.0
Siz
em
m0
.10
.20
.30
.40
.50
.60
.70
.80
.91
.01
.11
.21
.31
.41
.51
.61
.71
.81
.92
.02
.12
.22
.32
.42
.52
.62
.72
.82
.93
.0
SF
-14
SF
-16
(0.1
1M
Pa
)
SF
-18
(12
MP
a)
SF
-20
(23
MP
a)
~ ~ ~
15 20 25 32 40 50 65 75 78.4
100
99.4
125
130
150
160
15 20 25 32 40 50 65 75 78.4
100
99.4
125
130
150
160
15
20
25
32
40
50
65
75
80
10
0
12
5
15
0
15
20
25
32
40
50
65
75
80
10
0
12
5
15
0
15 20 25 2515 20 25 25 40 50 65 80 100
125
150
40 50 65 80 100
125
150
11 15 19 19 25 30 34 38 43 49 55 61 69 76 86 95 105
115
11 15 19 19 25 30 34 38 43 49 55 61 69 76 86 95 105
115
3.10
5.78
9.28
9.28
16.0
23.1
29.7
37.1
47.5
61.7
77.7
95.6
122
149
190
232
284
340
0.55
2
0.92
2
1.61
2.35
3.68
5.99
10.1
13.1
14.4
22.9
23.0
36.8
39.5
52.5
59.0
4.39
8.18
13.1
13.1
22.7
32.7
42.0
52.5
67.2
87.3
110
135
173
210
269
328
401
481
5.38
10.0
16.0
16.0
27.8
40.0
51.4
64.3
82.3
107
135
166
212
257
329
402
491
589
6.21
11.5
18.5
18.5
32.1
46.2
59.4
74.2
95.0
123
156
191
245
297
380
464
567
680
6.95
12.9
20.7
20.7
35.9
51.7
66.4
83.0
106
138
174
214
274
332
425
519
634
760
7.61
14.1
22.7
22.7
39.3
56.6
72.8
90.9
116
151
190
234
299
363
465
568
694
833
8.22
15.3
24.5
24.5
42.5
61.2
78.6
98.2
125
163
205
253
323
392
503
614
750
899
8.79
16.3
26.2
26.2
45.4
65.4
84.0
105
134
174
220
270
346
420
537
656
801
961
9.32
17.3
27.8
27.8
48.2
69.4
89.1
111
142
185
233
287
367
445
570
696
850
1020
9.83
18.2
29.3
29.3
50.8
73.1
93.9
117
150
195
245
302
387
469
601
733
896
1070
10.3
19.1
30.7
53.3
76.7
98.5
123
157
204
257
317
406
490
630
769
940
1120
10.7
20.0
32.1
55.6
80.1
102
128
164
213
269
331
424
514
658
803
982
1170
11.2
20.8
33.4
57.9
83.4
107
133
171
222
280
344
441
535
685
836
1020
1220
11.6
21.6
34.7
60.1
86.5
111
138
177
231
291
358
458
555
711
868
1060
1270
12.0
22.4
35.9
62.2
89.6
115
143
184
239
301
370
474
575
736
898
1090
1310
12.4
23.1
37.1
64.2
92.5
118
148
190
246
311
382
489
594
760
928
1130
1360
12.8
23.8
38.2
66.2
95.4
122
153
196
254
320
394
504
612
784
956
1160
1400
13.1
24.5
39.3
68.1
98.1
126
157
201
261
330
405
519
630
806
984
1200
1440
13.5
25.2
40.4
70.0
100
129
161
207
269
33.9
417
533
647
829
1010
1230
1480
13.9
25.8
41.5
71.8
103
132
166
212
276
347
427
547
664
850
1030
1260
1520
14.2
26.5
42.5
73.6
106
136
170
217
282
356
438
561
680
871
1060
1290
1550
14.5
27.1
43.5
75.3
108
139
174
223
289
364
448
574
696
892
1080
1320
1590
14.9
27.7
44.5
77.0
110
142
178
228
296
373
458
587
712
912
1110
1350
1630
15.2
28.3
45.4
78.7
113
145
181
232
302
381
468
599
727
931
1130
1380
1660
15.5
28.9
46.4
80.3
115
148
185
273
308
388
478
612
742
950
1160
1410
1700
15.8
29.4
47.3
81.9
118
151
189
242
314
396
487
624
757
969
1180
1440
1730
16.1
30.3
48.2
83.5
120
154
192
247
320
404
497
636
771
988
1200
1470
1760
16.4
30.6
49.1
85.0
122
157
196
251
326
411
506
647
785
1000
1220
1500
1790
16.7
31.1
49.9
86.5
124
160
199
256
332
418
515
659
799
1020
1240
1520
1830
17.0
31.6
50.8
88.0
126
162
203
260
338
426
524
670
813
1040
1270
1550
1860
0.78
0
1.30
2.28
3.33
5.21
8.47
14.4
18.5
20.4
32.4
32.6
52.1
55.9
74.3
83.4
0.95
6
1.59
2.79
4.08
6.38
10.3
17.6
22.7
25.0
39.6
39.9
63.8
68.5
91.0
102
1.10
1.84
3.22
4.71
7.37
11.9
20.3
26.2
28.9
45.8
46.1
73.7
79.1
105
118
1.23
2.06
3.60
5.27
8.24
13.4
22.7
29.3
32.3
51.2
51.5
82.4
88.4
117
131
1.35
2.25
3.94
5.77
9.03
14.6
24.9
32.1
35.4
56.1
56.4
90.3
69.9
128
144
1.46
2.43
4.26
6.23
9.75
15.8
26.9
34.7
38.2
60.6
60.9
97.5
104
139
156
1.56
2.60
4.56
6.67
10.4
16.9
28.8
37.1
40.8
64.8
65.2
104
111
148
166
1.65
2.76
4.83
7.07
11.0
17.9
30.5
39.4
43.3
68.7
69.1
110
118
157
177
1.74
2.91
5.09
7.45
11.6
18.9
32.2
41.5
45.7
72.4
72.9
116
125
166
186
1.83
3.05
5.34
7.82
12.5
19.8
33.7
43.5
47.9
75.9
76.4
122
131
174
195
1.91
3.19
5.58
8.16
12.7
20.7
35.2
45.5
50.0
79.3
79.8
127
137
182
204
1.99
3.32
5.18
8.50
13.2
21.6
36.7
74.3
52.1
82.6
83.1
132
142
189
212
2.06
3.45
6.03
8.82
13.8
22.4
38.1
49.1
54.0
85.7
86.2
138
148
196
220
2.13
3.57
6.24
9.13
14.2
23.2
39.4
50.8
55.9
88.7
89.2
142
153
203
228
2.20
3.68
6.44
9.43
14.7
23.9
40.7
52.5
57.8
91.6
92.2
147
158
210
236
2.27
3.80
6.64
9.72
15.2
24.7
42.0
54.1
59.6
94.4
95.0
152
163
216
243
2.34
3.91
6.84
10.0
15.6
25.4
43.2
55.7
61.3
97.2
97.8
156
167
223
250
240
4.01
7.02
10.2
16.0
26.1
44.4
57.2
63.0
99.8
100
160
172
229
257
2.46
4.12
7.21
10.5
16.4
26.8
45.5
58.7
64.6
102
103
164
176
235
263
2.53
4.22
7.38
10.8
16.9
27.4
46.6
60.2
66.2
105
105
169
181
240
270
2.58
4.32
7.56
11.0
17.3
28.1
47.7
61.6
67.8
107
108
173
185
246
276
2.64
4.42
7.73
11.3
17.6
28.7
48.8
63.0
69.3
109
110
176
189
252
283
2.70
4.51
7.89
11.5
18.0
29.3
49.9
64.3
70.8
112
112
180
193
257
289
2.76
4.61
8.06
11.7
18.4
29.9
50.9
65.6
72.2
114
115
184
197
262
295
2.81
4.70
8.22
12.0
18.8
30.5
51.9
66.9
73.7
116
117
188
201
268
300
2.86
4.79
8.37
12.2
19.1
31.1
52.9
68.2
75.1
119
119
191
205
273
306
2.92
4.87
8.53
12.4
19.5
31.7
53.9
69.5
76.5
121
121
195
209
278
312
2.97
4.96
8.68
12.6
19.8
32.2
54.8
70.7
77.8
123
124
198
213
283
317
3.02
5.05
8.83
12.9
20.2
32.8
55.8
71.9
791
125
126
202
216
287
323.
FU
LL
BO
RE
TY
PE
LIF
TT
YP
E
P:R
elie
vin
gp
ress
ure
(MP
a),
dt:
Th
roa
t dia
.(m
m)
* *
1. C
oe
ffic
ien
t Ka
nd
Acc
um
ula
tio
na
red
iffe
ren
t acc
ord
ing
toty
pe
s.2
. P(M
Pa
),w
hic
his
for
act
ua
lca
lcu
lat i
on
tod
eci
de
dis
cha
rge
am
ou
nt ,
is(P
)+(A
ccu
mu
lat i
on
)(B
ack
pre
ssu
re)
-
P:R
elie
vin
gp
ress
ure
(MP
a),
D:S
ea
t op
en
ing
dia
.(m
m),
R:L
ift(
A)
* * *
1. C
oe
ffic
ien
t K,A
ccu
mu
lati
on
an
dL
ift a
red
iffe
ren
t acc
ord
ing
toty
pe
s.2
. Re
fer
top
ag
e6
9fo
rsa
fety
relie
f va
lve
s(S
L-3
7~
40
FT
ype
).3
. P(M
Pa
),w
hic
his
for
act
ua
l ca
lcu
lati
on
tod
eci
de
dis
cha
rge
am
ou
nt,
is(P
)+(A
ccu
mu
lati
on
)(B
ack
pre
ssu
re)
-
(K=
0.6
, G=
1, A
ccu
mu
lati
on
15
%A
=0
.78
5d
t)
2P
GW
=1
61
AK
(K=
0.5
5, G
=1
, Acc
um
ula
t io
n1
0%
A=
)π
ℓD
PG
W=
16
1A
K
SF
-20
SF
-14
SA
FE
TY
VA
LV
ES
,R
EL
IEF
VA
LV
ES
TABLE1. TOLERANCE OF OPENING PRESSURE OF SAFETY VALVES FOR STEAM
TABLE2. BLOWDOWN PRESSURE OF SAFETY VALVES FOR STEAMTABLE2. BLOWDOWN PRESSURE OF SAFETY VALVES FOR STEAM
TABLE3. BLOWDOWN PRESSURE OF SAFETY VALVES FOR GASTABLE3. BLOWDOWN PRESSURE OF SAFETY VALVES FOR GAS
*1. For steam, generally the set pressure is assumed to be the opening pressure.
*1. Generally, the blowdown pressure for steam shall be the difference between the
popping pressure and the reseating pressure.
* 1. Generally, the blowdown pressure for gases shall be the difference between
the start to discharge pressure and the reseating pressure.
Set pressure
Below 0.5
0.5 or more and below 2.3
2.3 or more and below 7.0
7.0 or more
Set pressure
Below 0.5
0.5 or more and below 2.3
2.3 or more and below 7.0
7.0 or more
Set pressure
0.4 or less
Over 0.4
Set pressure
0.4 or less
Over 0.4
Set pressure
0.2 or less
Over 0.2
Set pressure
0.2 or less
Over 0.2
2. The definition of the soft seat and metal seated types shall be in accordance with
JIS B 0100.
*
However, when set by the opening pressure, it shall be the difference between
the opening pressure and the reseating pressure.
2. The figures in ( ) can be determinated in accordance with the agreement between theparties concerned.
*
2. The tolerance of the opening pressure of the safety valves for steam used other
than in boilers can be ±3% of the set pressure (minimum value ±0.014MPa).
*
Tolerance
±0.014 or less
±(3% of set pressure)
±0.07
±(1% of set pressure)
Tolerance
0.03
7%(4%) or less of set pressure
Blowdown
Blowdown
0.05 or less
25 or less of set pressure
Soft seat type
%
Soft seat type
0.03 or less
15% or less of set pressure
Metal seated type
Allowed deviation of discharge-starting pressure
For valves for gasses, the set pressure is generally thedischarge pressure.
startto
(1) For steam
(2) For gasses
There is no provision on the relief pressure of safety valve forsteam.
For valve for gasses, the allowed deviation of start to dischargepressure is set pressure ±5% (minimum pressure: ±0.025MPa).In case of allowed deviation, which is not allowed to exceed setpressure,add the “+” side to “ ” side.-
Note:
Allowed deviation of opening pressure (popping pressure)
For safety valves for gasses, the allowed deviation of discharge-starting pressure is less then1.1 times of star to discharge pressure.However, in the case of setting opening pressure, the deviationshould be ±3% set pressure (minimum±0.014MPa).
(1) For steam
(2) For gasses
See Table 1 for the deviation of opening pressure. In case ofallowed deviation, which is not allowed to exceed set pressure,add the “+” side to “ ” side.-
BLOWDOWN
(1) For steam
(2) For gasses
See Table 3 for blowdown pressure of safety valves for gasses.
See Table 2 for the blowdown pressure of safety valves for steam.For valves for steam used with through flow boilers, re-heater, andpiping, which pressure exceeds 0.3MPa, the blowdownpressure should be less than 10% of set pressure.
opening
Extract from JIS B8210-1994 Spring Safety Valve for Steam and Gases
Note. The blowdown pressure defined by Venn shall be in accordance with the Venn
standard unless otherwise specified by JIS B8210.
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REFERENCE DIMENSION FOR EXHAUST PIPE
Outlet size D (A) B C E L H N
40(1 )
50(2 )
65(2 )
80(3 )
100(4 )
125(5 )
150(6 )
200(8 )
½
½
"
"
"
"
"
"
"
"
40
50
65
80
100
125
150
200
65
80
100
125
150
200
200
250
130
150
200
200
250
300
300
380
60
60
60
70
70
80
80
100
80
90
100
120
140
160
180
220
30
40
40
50
60
70
70
80
130
150
180
200
250
300
350
450
220
230
270
310
370
430
500
610
Rc
Rc
Rc
Rc
Rc
Rc1
Rc1
Rc1
⅜
½
½
½
¾
"
"
"
"
"
"
"
"
Key Points for Installation of Safety Valve and Relief Valve
Safety valve should be vertical to pipe. Beforeinstallation, remove scale and dust and cleanthe surfaces that contact with gasket.
The diameter of the installation pipe should belarger than the diameter of valve. To reducepressure loss to minimum degree, the stand pipeshould be as short as possible.
The pipe should be rigid and hard enoughto bear the compression force, shearing force,bending stress or other counterforce caused byrelieving of safety valve.
stand
Compared with the diameter of the outlet of safetyvalve, the diameter of the discharge pipe shouldbe as large as possible. The discharge pipeshould be as short as possible, without anybending, lead to outside of the door or other safeplace, and be properly supported to avoid theoccurrence of undesired stress (including thermalstress).
When deciding the place that the outlet of thedischarge pipe faces, pay attention to the followingissues.
1
2
To avoid installation place where is influencedby explosive sound and blast.
Avoid damage to electrical equipments,machines, tools etc. in the case the fluid issteam or water.
Avoid corrosion, poisoning, anoxia etc. in thecase the fluid is harmful gas.
At the installation of safety valves avoid theplace where there is possibility to obstruct theirfunctions by vibration or corrosion and do notgive impact from outside.
To prevent valve from being damaged dueto improper load, when the pressure of thedevice reaches 80~90% of dischargepressure, install test gag* and press lightlyon the end of valve shaft. The test gag mustbe rotated using hand. If you rotate it using
※ The test gag is optional item.
In the case of screwed type safety valve orrelief valve, install union joint at the dischargepipe of the outlet side to allow easy dism-ounting (see Fig.1 in next page).
To avoid adverse impact on safety valve thatis caused by thermal expansion of devices ordischarge pipe, install proper expansion jointat the outlet of valve and install a dischargepipe at the end (see the figure below). To limitcounterforce, the distance between the axesof the valve and the center of discharge pipeshould be as short as possible, and the radiusof the elbow pipe should be at least 2D (D: theinternal diameter of the elbow). below figurealso shows the standard dimensions of the dis-charge pipe of safety valve.
At parts of the discharge pipe where drain orrain may accumulate, install the drain outlet,which is possible to discharge drain comple-tely,and connect to dike.
Cares should be paid on installation of valveswith lever (open type). It may effuse f fromupper cap when such valves are operating(see Fig.5 in the next page).
luid
After installation, make sure the pressure of thedevice has reached at least 75% dischargepressure of the valve before using the test leverto start the valve.
Normal working pressure of the equipment shallnot exceed 90% of the blowdown pressure of thevalve and 80 to 85% when pulsation is expected.
If possible, remove safety valve before makingwater pressure test. To make water pressuretest without removing safety valve, pay attentionto the following below (see Fig.4 in the nextpage).
After water pressure test and the pressurereduces to 80~90% relieving pressure,re-move test gag immediately.
3
4
5
6
7
8
1
2
3
4
a
b
spanner or other tools, there may haveexcessively large pressing force, the seatmay be damaged, the shaft may be bended,and the valve may not function normally.
(Drain outlet)
(Drain outlet)
Example: for steam
In the case of full bore type safety valve forliquids or harmful gasses and have faucet foradjusting back pressure, install the valve onthe outlet discharge pipe (see Fig.3 in nextpage).
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