dembla series 1100 two-way globe control valve
TRANSCRIPT
SERIES 1100
Globe Two Way
Control Valves
SERIES 5000Globe Angle
Aiming at Perfection
SERIES 2000
Globe Double Seat
SERIES 3000
Globe Three Way
Certified ISO 9001:2000 by
008
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1
FOREWORD
& Series 1100 valves are Globe two-way single seated body design valves, which
satisfy majority of control applications for process and power industries.
& Body with top entry trim and bolted bonnet facilitates easy access to all internal
parts for online inspection, maintenance and trim replacement.
& Stream lined flow path provide large flow capacity.
& Variety of Trim options available to satisfy vast applications range including
reduced port trims enabling nearest accurate selection for precise control
requirements.
& Trims with top bush guided plugs are available with simple construction for
stable operation. Assures high rangeability and turndown ratios. Best suited for
seat leakages requiring bubble tight shutoff.
& Micro trims available for control of minute flow rates.
& Trims with large guide plugs are available for full pressure balancing effect
providing economical choice for high pressure applications.
& Cascaded trims, Multi hole cage trims with single, double and triple stage
provide effective noise control system and anti cavitation effect in the control
valves.
& Valves are available in variety of material combinations including conformance to
NACE MR-01-75.
SERIES 1100
Control ValvesGlobe Two Way www.dembla.com
SPECIFICATIONSValve Sizes and Ratings : 15 mm thru 750 mm NB / 1/2" thru 30" NB (ANSI 150#, 300# and 600#,
Equivalent in BS and DIN)
15 mm thru 100 mm NB / 1/2" thru 4" NB (ANSI 900# and 1500#)
End Connections : Flanged End (RF, RJ and TG) - All sizes
Butt Weld End - All sizes
Socket Weld End upto size 2"
Screwed End upto size 2”
Valve Body MOC : Carbon Steel ASTM A216 Gr. WCB
Alloy Carbon Steel ASTM A217 Gr. WC1, WC6, WC9, C5, C12, A352 LCB, LCC, LC3
Stainless Steel ASTM A351 Gr. CF8, CF8M, CF3, CF3M, CF8C
Alloy Steel Hast 'C', Alloy 20, Nickel, Titanium, Monel, etc
All other Materials available on request.
Trim MOC : Stainless Steel ASTM A479 Type Ss316, SS304, SS316L, SS304L, SS904L
Alloy Steel Hast 'C', Alloy 20, Nickel, Titanium, Monel, etc
All other Materials available on request.
0 0 Gland Packings : V-Teflon -150 C to +200 C0 0 Graphite -150 C to +600 C
Body Gaskets : Compressed Asbestos Fibre (CAF) with Inconel wire impregnated
P.T.F.E.
S. S. Spiral wound with P.T.F.E. / Asbestos / Graphite Fillers
Flow Characteristics : Standard Trim- Linear, Equal Percentage, On-off
Modified Equal Percentage available on request
Rangeability : 30:1 Standard (50:1 or higher available on request)
Cv Values : Refer Tables 2A, 2B, 2C and 2D
Leakage Rates : As per ANSI / FCI 70-2
Class VI (With Soft Facing) Tight Shutoff
Class III and IV (With Metal to Metal Seating)
(Class V - With Metal to Metal Stellite Faced Trims available on request)
Bonnets : Standard
Extended Plain
Extended Finned
Bellows Bonnet
Cryogenic
Manual Overrides : Top mounted version upto size 4”
Side mounted version recommended above size 4“
Accessories : Pneumatic Valve Positioner,Electro Pneumatic (E/P) Valve Positioner, Air Filter Regulator,
Air Lock Relay, Air Volume Booster, Limit Switch, Proximity Switch, Solenoid Valve,
Position Transmitter, Quick Exhaust Valve, etc.
2
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-20 to 100 200 300
500 600 650 700 750 800 850 900950
1000
400
-28.88 to 37.7793.33
148.88
260.00315.55 343.33 371.11 398.88 426.66454.44 482.22 510.00537.77
204.44
290260 230
170 140 125 110
95 80 65 50 35 20
200
20.3918.28 16.17
11.95 9.84 8.79 7.73 6.68 5.62 4.57 3.51 2.46 1.40
14.06
750 750 720
665 605 590 570
530 510 485450 320215
695
52.74 52.74 50.63 48.87
42.54 41.49 40.08 37.27 35.36 34.10 31.64 22.50 15.11
46.76
1000 1000
965
885 805 785 755 710 675 650 600 425 290
925
70.32 70.32 67.86
62.23 56.61 55.2053.09 49.92 47.46 45.70 42.19 29.8020.39
65.04
1500 1500 1445
1330 1210 1175 1135 1065 1015
975 900 640 430
1385
105.48105.48101.60
93.53 85.09 82.63 79.81 74.89 71.37 68.56 63.29 45.00 30.23
97.39
2250 2250 2165
1995 1815 1765 1705 1595 1525 1460 1350
955 650
2080
158.22 158.22 152.25
140.29 127.63 124.12119.90 112.16 107.24 102.67
94.93 67.15 45.71
146.29
375037503610
3325 30252940 2840 2660 2540 2435 2245 1595 1080
3465
263.7263.7253.8
233.8 212.7 206.7199.7187.0 178.6171.2157.8112.175.9
243.6
TABLE 1B - CAST GRADE OF ALLOY CARBON STEEL (ASTM A217 Gr. WC6)
-20 to 100 200 300
500 600 650 700 750 800 850 900950
1000
400
-28.88 to 37.7793.33
148.88
260.00315.55 343.33 371.11 398.88 426.66454.44 482.22 510.00537.77
204.44
290260 230
170 140 125 110
95 80 65 50 35 20
200
20.3918.28 16.70
11.95 9.84 8.79 7.73 6.68 5.62 4.57 3.51 2.46 1.40
14.06
750 750 730
665 605 590 570 530 510 485450 375260
705
52.74 52.74 51.38 49.57
42.54 41.49 40.03 37.27 35.86 34.10 31.64 26.37 18.78
46.76
1000 1000
970
885 805 785 755 710 675 650 600 505 345
940
70.32 70.32 68.21
62.23 56.61 55.20 53.09 49.92 47.46 45.70 42.19 35.50 24.26
66.10
1500 1500 1445
1330 1210 1175 1135 1065 1015
975 900 755 520
1410
105.48105.48101.60
93.63 85.09 82.03 79.81 74.89 71.37 68.56 63.29 53.09 36.56
99.50
2250 2250 2185
1995 1815 1765 1705 1595 1525 1460 1350 1130
780
2115
158.22 158.22 153.65
140.20 127.63 124.12 119.90 112.16 107.24 102.67
94.93 79.46 54.85
148.70
375037503640
3325 30252940 2840 2660 2540 2435 2245 1885 1305
3530
263.7263.7255.9
233.8 212.7 206.7199.7187.0 178.6171.2157.8132.5
91.7
248.2
TABLE 1C - CAST GRADE OF ALLOY CARBON STEEL (ASTM A217 Gr. WC9)
-20 to 100 200 300
500 600 650 700 750 800 850 900950
1000
400
-28.88 to 37.7793.33
148.88
260.00315.55 343.33 371.11 398.88 426.66454.44 482.22 510.00537.77
204.44
275235 215
170 140 125 110
95 80 65 50 35 20
195
19.3316.52 15.11
11.95 9.84 8.79 7.73 6.68 5.62 4.57 3.51 2.46 1.40
13.71
720 620 560
480 450 445 430 425 420 420415 385350
515
50.6343.6039.33 36.12
31.6431.29 30.2329.8329.5329.5329.1827.0724.61
33.75
960825745
635600590580570565555555515465
685
67.558.0052.39
44.6542.1941.4940.7840.0839.7239.0239.0236.2132.70
48.17
144012401120
955900890870855845835830775 700
1025
101.287.2078.76
67.5063.2962.5861.1860.1259.4258.7258.3654.5049.22
72.06
216018601680
143513551330130512801265125512451160 1050
1540
151.8 130.80118.14
100.9095.2893.5391.7790.0188.7588.2087.5081.5773.80
108.20
360030952795
2390225522202170213521102090207519301750
2570
253.16217.6196.5
168.0158.5156.1152.6150.0148.3146.9145.9135.7123.0
180.7
TABLE 1D - CAST GRADE OF STAINLESS STEEL SS 316, SS 316L (ASTM A351 Gr. CF8M, CF3M)
Temperature 2Working Pressures by Classes, PSIG / kg/cm
0F 0C
150 300 400 600 900 1500
PSIG 2 Kg/cm
-20 to 100 -28.88 to 37.77 285 20.04 740 52.03 990 69.62 1480 104.0 2220 156.1 3705 260.54200 93.33 260 18.28 675 47.46 900 63.29 1350 94.93 2025 142.4 3375 237.34300 148.88 230 16.17 655 46.06 875 61.58 1315 92.47 1970 138.5 3280 230.6
500 260.00 170 11.95 600 42.19 800 56.25 1200 84.38 1795 126.2 2995 210.6 600 315.55 140 9.84 550 38.67 730 51.33 1095 77.00 1640 115.3 2735 192.3 650 343.33 125 8.79 535 37.62 715 50.28 1075 75.59 1610 113.22 2685 188.81700 371.11 110 7.73 535 37.62 710 49.92 1065 74.89 1600 112.51 2665 187.41 750 398.88 95 6.68 505 35.51 670 47.11 1010 71.02 1510 106.18 2520 177.21
PSIG 2 kg/cm PSIG
2 kg/cm PSIG 2 kg/cm PSIG
2 kg/cm PSIG 2 Kg/cm
400 204.44 200 14.06 635 44.65 845 59.22 1270 89.31 1900 133.6 3170 222.9
TABLE 1A - CAST GRADE OF CARBON STEEL (ASTM A216 Gr. WCB)
BODY PRESSURE TEMPERATURE RATINGS
Temperature 2Working Pressures by Classes, PSIG / Kg/cm
0F 0C
150 300 400 600 900 1500
PSIG 2 Kg/cm PSIG
2 Kg/cm PSIG 2 Kg/cm PSIG
2 Kg/cm PSIG 2 Kg/cm PSIG
2 Kg/cm
Temperature 2Working Pressures by Classes, PSIG / Kg/cm
0F 0C
150 300 400 600 900 1500
PSIG 2 Kg/cm PSIG
2 Kg/cm PSIG 2 Kg/cm PSIG
2 Kg/cm PSIG 2 Kg/cm PSIG
2 Kg/cm
Temperature 2Working Pressures by Classes, PSIG / Kg/cm
0F 0C
150 300 400 600 900 1500
PSIG 2 Kg/cm PSIG
2 Kg/cm PSIG 2 Kg/cm PSIG
2 Kg/cm PSIG 2 Kg/cm PSIG
2 Kg/cm
3
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Material Working Pressure Limit
2(kg/cm)Working Temperature Range
(°C)
PTFE Impregnated asbestos 150 -250 to +200
-250 to +200PTFE Chevron (V-Rings) 100
Graphite Moulded Rings 150 +200 to +600
SELECTION OF BONNETS
Bonnets are manufactured from the same material as the Body. Dembla bonnets utilize a bolted flange type stuffing box
construction. The packing box design is such that all types of packing are interchangeable. Figures shows various types of Bonnet
available.
Bonnet Types
1. Standard Bonnet
2. Extended Finned Bonnet
3. Extended Plain Bonnet
4. Cryogenic Bonnet
5. Bellows Sealed Bonnet
Standard bonnets are suitable for temperatures ranging from 0 0
0 C to +230 C.
Extended finned Bonnets are used for high temperature service 0 0applications ranging from +230 C to +1000 C. These bonnets
are provided with 'Graphite gland packings'.
Extended plain bonnets are uspaced for service temperature 0 0
-100 C to 0 C.
The Construction of the bonnet permits minimum heat transfer. The bonnet material used generally is SS 304 or SS 316. The design protects the packing from extremely low service
0 0temperature (-100 C to -198 C).
This type of bonnet utilizes a bellows assembly for sealing against leakage around the valve plug steam. Bellows sealed bonnets are used on those applications where no leakage along the valve stem is allowed. Usual applications include those installations were process fluid is flammable, toxic, explosive or highly expensive. Bellows material is SS 321 and is suitable
2 for pressure up to 45 kg/cmat maximum temperature of 0450 C.
SELECTION OF GLAND PACKINGS
NOTE : To further improve valve stem action and to reduce friction a silicone base moly-disulphide grease lubricant is recommended. It is suitable for use upto 0
260 C.
CAUTION : Packing should not be lubricated for control valve in oxygen service; since many lubricants, particularly petroleum base lubricants are hazardous because
of their high heat of combustion and high rate of reaction.
1. Standard Bonnet
3. Extended Plain Bonnet
5. Bellows Sealed Bonnet
2. Extended Finned Bonnet
4. Cryogenic Bonnet
4
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Body Material
Carbon Steel (Grade WCB)
Carbon Steel (Grade LCB)
Carbon Moly (Grade WC1)
1¼ Cr - ½ Mo(Grade WC6)
2¼ Cr - 1Mo(Grade WC9)
5 Cr - ½ Mo(Grade C5)
9 Cr - 1Mo(Grade C12)
Type 304 (Grade CF8)
Type 347 (Grade CF8C)
Type 316 (Grade CF8M)
3½ Ni (Grade LC3)
A194 Gr 2H
A194 Gr 2H
A194 Gr 2HA194 Gr 7
A194 Gr 2HA194 Gr 7
A194 Gr 2HA194 Gr 7A194 Gr 7
A194 Gr 2HA194 Gr 7A194 Gr 4
A194 Gr 2HA194 Gr 7A194 Gr 4
A194 Gr 8A194 Gr 8
A194 Gr 8A194 Gr 8
A194 Gr 8A194 Gr 8M
A194 Gr 4W/Charpy Test or 8M
A194 Gr 2H
A193 Gr B7
A193 Gr B7
A193 Gr B7A193 Gr B7
A193 Gr B7A193 Gr B7
A193 Gr B7A193 Gr B7A193 Gr B16
A193 Gr B7A193 Gr B7A193 Gr B16
A193 Gr B7A193 Gr B7A193 Gr B16
A320 Gr B8 A193 Gr B8
A320 Gr B8A193 Gr B8
A320 Gr B8A193 Gr B8M
A320 Gr L7A193 Gr B7
-29 to 427
-46 to 344
-29 to 427428 to 455
-29 to 427428 to 538
-29 to 427428 to 538539 to 566
-29 to 427428 to 538539 to 594
-29 to 427428 to 538539 to 594
-253 to 3838 to 816
-253 to 3838 to 816
-199 to 3838 to 816
-102 to -46-46 to 344
-20 to 800
-50 to 650
-20 to 800801 to 850
-20 to 800801 to 1000
-20 to 800801 to 10001001 to 1050
-20 to 800801 to 10001001 to 1100
-20 to 800801 to 10001001 to 1100
-425 to 100100 to 1500
-425 to 100100 to 1500
-325 to 100100 to 1500
-150 to -50-50 to 650
Temperature Stud Materialas per ASTM
Nut Materialas per ASTM0F 0C
SELECTION OF BODY STUDS
SELECTION OF GASKETS
Type MaterialWorking
Pressure Limit2(kg/cm)
WorkingTemperature Range
0( C )
Joint Sheet
Metal Flat Ring Type Serratedon both sides
Spiral Wound
P.T.F.E.
Asbestos Filler
PTFE Filler
Graphite Filler
Compressed Asbestos Fibre (CAF) withInconel wire braided
SS 316, Inconel, Monel,Titanium, etc
SS 304Strips
40
150
100
150
70
100
-100 to +400
-250 to +200
-100 to +200
-250 to +200
-100 to +600
-260 to +600
Pressure Balance SealRing
‘U’ Seal Ring
Carbon Ring
Material
Graphite Filled P.T.F.E. -100 to +200
+200 to +600Pure Carbon
0Temperature Limit C
SELECTION OF PRESSURE BALANCE SEAL RINGS(For Pressure Balance Trims)
5
HARDENED / HARD FACED TRIMS
and
The trims are hardened / hard faced to protect the parts like seat ring, plug, guide bush or cages against the effect of erosion,
abrasion cavitation and to minimise galling between mating parts at high temperatures. Erosion of valve trim is caused by
various factor vis. the fluid is gas or liquid, entrained solid particles in it, high flowing velocity and its temperature. The degree of
erosion of metal parts caused by flowing media is a function of pressure differential. Dembla provides hardened/hard faced trims
through various methods like Heat treatment of metals, Stellite deposition on metals and Hard coating on metals.
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VARIOUS TRIM OPTIONSTOP BUSH GUIDED TRIMS (UNBALANCED)
1. CONTOUR : The Contour Top Guided trims are the most
preferred choice for variety of control applications due to their
simple construction. Heavy top guide bush provides maximum
support to impart complete stability. The plug shank is guided
at the lowest portion of the bonnet minimizing the effect of side
thrust on the valve plug eliminating trim vibration.
2. DISC (ON-OFF): For Quick Opening applications the disc
trims are used. These trims are similar to contoured trims
except they are flat instead of contour parabolic shape.
METAL TO METAL SEATINGLEAKAGE CLASS IV and V1. Contour
METAL TO METAL SEATINGLEAKAGE CLASS IV and V2. Disc (On-Off)
6
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3. MICRO : This trim has very high rangeability, designed to
precise control of minute flow rates. In addition to top guide the
plug nose is precisely guided in the seat bore for through out
valve travel to avoid breakage of the nose. The trims are
designated in alphabets A to M depending on Cv values but the
actual seat bore remains 4mm Ø.
Most suitable trim option where large pressure
drop, cavitation during throttling is experienced which may
cause erosion of trim, vibration noise. As illustrated in the
figure, the large pressure drop is divided in to many stages by
means of the grooves made in the plug, which
minimises the cavitation.
The contour / disc type trims
with P.T.F.E. or glass filled P.T.F.E. soft facing are utilized for tight
shut off (Class VI per FCI 70-2) application where control valve
has to perform equally as a controlling a shut-off valve. The
P.T.F.E. soft facing is sandwiched between the plug shank,
and easily replaceable .
4. CASCADE :
and
5. TRIM WITH SOFT FACING :
and
and
4. Cascade
METAL TO METAL SEATINGLEAKAGE CLASS IV and V
METAL TO SOFT FACINGLEAKAGE CLASS VI5. Soft Facing
7
METAL TO METAL SEATINGLEAKAGE CLASS IV, V and VI3. Micro
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1. UNBALANCE VERSION :
2. PRESSURE BALANCE VERSION :
The large guide trim construction
provides a heavy duty guide to plug enabling it to take higher
side thrust load. These trims are generally used on Globe Angle
Valves (Series 5000) where flow direction is side to bottom.
The large guide trims
with pressure balancing effect enable the valve to handle
higher Dp shut off without employing high power actuators.
The flow characteristic is achieved through plug contour.
Equalizing holes are opened in the plug which effectively cancel
out the unbalance force impressed on top and bottom of valve
plug.
Pressure balance sealing is attained 1) At seating surface and
2) Through pressure balance seal rings which are fitted on the
plug seal pressure along with the inner wall of the large guide
having a ground, honed and chrome plated surface.
LARGE GUIDED PRESSURE BALANCED / UNBALANCED TRIMS
METAL TO METAL LEAKAGE CLASS IV and VContoured Large Guided Unbalance
GLOBE ANGLE VALVESeries 5000
Carbon Ring0
Max. Temp. +600 C
Leakage Class III and IV
Leakage Class III and IV
‘U’ Seal Ring0
Max. Temp. +200 C
8
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MULTI HOLE CAGE GUIDED PRESSURE BALANCED / UNBALANCED TRIMS
Carbon Ring0
Max. Temp. +600 C
Leakage Class III and IV
Leakage Class III and IV
‘U’ Seal Ring0Max. Temp. +200 C
METAL TO METAL SEATING LEAKAGE CLASS IV and VMulti Hole Cage Guide Unbalance
METAL TO SOFT FACINGLEAKAGE CLASS VIMulti Hole Cage Guide Pressure Balance
9
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TRIM FORM : MICROTOP BUSH GUIDED
Table 2A Table 2B
Cv VALUES
TRIM FORM : CONTOUREDTOP BUSH GUIDED
NOTE : 1) Cv Values for on-off flow characteristic will generally be 10 to 20% higher.
2) For Linear flow characteristic, if essential, above-mentioned Cv values can be given higher by 10%.
3) Reduced trims are available in various combinations.
VALVE SIZEINCH
11.523459
13
1350
30
30
30
20
20
50
50
110
110200
200640
640
640
400
400
400
300
3001000
1000
1000
1800
1800
1350
1350
2950235035002950
2350
1350
80
80
80
3568
10152025
2550
50
50100
100200
200350
350
200250
250
250400
40
40
4080
80
32
3265
65
65150
150300
300
450400500450
300
150
125
125
1/83/16
¼5/163/8½¾1
1½
2½
2½
2½
2
24
48
8
8
6
612
12
12
18162018
16
10
10
14
14
6
5
510
3
3
1½
1½
1¼
1¼
12
15, 20 and 25
40
50
65
80
100
150
200
250
300
350
400
450
500
½,¾ and 1
1½
2½
4
6
8
10
12
14
16
3
2
INCHMM MM US GPMTRIM SIZE Cv
MMM
½
0.0030.005
0.00750.010.010.020.030.05
0.0750.1
0.150.20.30.4
0.5
0.75
LKJIHGFEDCBA
1/32” (0.75 mm)
1/16” (1.6 mm)
¾1
152025
NOTE :
1) The above mentioned trim sizes are designated sizes only. Actual seat
bore for all above sizes is 4mm.
2) For Trim size F,G,H,I,J,K,L and M Only Linear Flow Characteristics are
available.
3) Reduced trim are also available in various combination.
VALVE SIZEINCH US GPM
TRIM SIZECv
10
18
20
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NOTE :
1) Cv Values for on-off flow characteristic will generally be 10 to 20% higher.
2) For Linear flow characteristic, if essential, above-mentioned Cv values can be given higher by 10%.
3) Marked trim sizes 1¼ and below are always unbalance.
TRIM FORM : 1. M. H CAGE GUIDED 2. CONTOURED PORTED CAGE GUIDED
TRIM FORM : CONTOURED LARGE GUIDED
1295
2720134530
5030
20
100
100
72
80
18050
300
80
580200
640
640
2100
300
400
1620
900
12001000
1000
18001350
1350
360
400
2520154032255040
50
50
100
250200
400350300
200250
250
32
4080
10080
200
65
65
65150125
150
350300
150
125
300
1
1
½¾
1½
1½
2½
8
2½
2½
2
243
65
108
8
16
6
1412
12
10
14
6
5
1210
3
4
1½
1¼
1¼
2
65
25
40
50
80
100
150
200
250
300
350
400
1½
2½
4
1
6
8
10
12
14
16
3
2
MM
Table 2C VALVE SIZE
INCH INCH MM US GPMTRIM SIZE Cv
1074
2416104024
4024
16
90
90
64
64
16040
240
64
510160
510
510
1950
240
320
1440
800
1100800
800
14401100
1100
320
320
2520154032255040
50
50
100
250200
400350300
200250
250
32
4080
10080
200
65
65
65150125
150
350300
150
125
300
1
1
½¾
1½
1½
2½
8
2½
2½
2
243
65
108
8
16
6
1412
12
10
14
6
5
1210
3
4
1½
1¼
1¼
2
65
25
40
50
80
100
150
200
250
300
350
400
1½
2½
4
1
6
8
10
12
14
16
3
2
Table 2DVALVE SIZE
INCH INCHMM MM US GPMTRIM SIZE Cv
11
2750235031002950
450400500450
18162018
450
500
18
20 500
2360195028002360
450400500450
18162018
45018
20
16
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FLOW CHARACTERISTICS CURVES (EQUAL PERCENTAGE)TRIM : CONTOURED TOP BUSH GUIDED
10 20 30 40 50 60 70 80 90 100
0.001
0.002
0.003
0.004
0.006
0.008
0.01
0.02
0.03
0.04
0.06
0.1
0.08
0.2
0.3
0.4
0.6
1
0.8
2
3
4
6
10
8
20
30
40
60
100
80
200
300
400
600
1000
800
2000
3000
4000
Valv
e Cv
, USG
PM
75252
5
9
13
30
50
80
110
200
400
640
1350
1800
2350
2950
3500
1000
4
3
2
1.5
1
0.75
0.5
0.4
0.3
0.2
0.15
0.1
Trim
Size
, mm
15
20
25
40
50
65
80
100
150
200
300
350
400
450
500
250
10
8
6
5
3
1.5
1
a
b
c
d
e
a
b
c
d
e
Trim
Size
, in
ch
1 1/2
2 1/2
1/2
3/8
5/16
1/4
3/16
1/8
1/16
1/32
3/4
1
2
3
4
6
8
12
14
16
18
20
10
Flow
Coe
ffici
ent (
Cv),
USG
PM
% Valve Opening
12
www.dembla.com
TRIM : CONTOURED LARGE GUIDED
% Valve Opening
0.02
0.03
0.04
0.06
0.1
0.08
0.2
0.3
0.4
0.6
1
0.8
2
3
4
6
10
8
20
30
40
60
100
80
200
300
400
600
1000
800
2000
3000
4000
10 20 30 40 50 60 70 80 90 10075252
12
27
45
72
100
180
360
580
1200
1620
2100
31002750
900
9
5
25
40
50
65
80
100
150
200
300
350
400
500450
250
20
15
Valv
e C
v, U
SG
PM
Trim
Siz
e, m
m
1
1 1/2
2
2 1/2
3
4
6
8
12
14
16
2018
10
3/4
1/2
Trim
Siz
e, in
ch
Flow
Coe
ffici
ent (
Cv),
USGP
M
13
www.dembla.com
TRIM : MULTI HOLE CAGE GUIDED
0.02
0.03
0.04
0.06
0.1
0.08
0.2
0.3
0.4
0.6
1
0.8
2
3
4
6
10
8
20
30
40
60
100
80
200
300
400
600
1000
800
2000
3000
4000
10 20 30 40 50 60 70 80 90 10075252
10
24
40
64
90
160
320
510
1100
1440
1950
800
7
4
25
40
50
65
80
100
150
200
300
350
400
250
20
15
Valv
e C
v,
USG
PM
Tri
m S
ize,
mm
Tri
m S
ize,
inch
1
1 1/2
2
2 1/2
3
4
6
8
12
14
16
10
3/4
1/2
Flo
w C
oeff
icie
nt
(Cv),
USG
PM
% Valve Opening
14
2800
2360
500
450
20
18
www.dembla.com
The ‘M’ Series control valve actuators are diaphragm actuators with
pre-compressed multispring construction. They are compact,
comparatively with less number of parts, easy to maintain, quickly
reversible. The actuators are suitable for regulating and on-off
applications. Various models are available covering small to larger
thrust requirements.
MULTISPRING DIAPHRAGM ACTUATORS : SERIES - M
AND ITS FUNCTION
SPECIFICATIONS
Max. Diaphragm Pressure : 3.5 bar (For Model M and Mp)
: 6.0 bar (For Model Mh)
Actuator Travel : 18, 28, 38, 58, 78 and 108 mm
Diaphragm : Nitrile with Nylon insert /
EPDM with Nylon insert (On Request)0Operating Temp. Range : - 40 to +80C Nitrile Elastomers
Connections : 1/4” NPT (F) for Models Nos. 00, 01, 11,
: 3/8” NPT (F) for Models Nos. 12, 22, 23,
33, 34 and 44.
Permissible Linearity : +5% of Signal Pressure Range
and Hysterisis
AIR VOLUME REQUIRED PER STROKE
MODEL Nos. CUBIC FT / STROKE
M-00, Mp-00 0.012
M-01, Mp-01 0.023
M-11, Mp-11 0.035
M-12, Mp-12 0.061
M-22, Mp-22 0.082
M-23, Mp-23 0.121
M-33, Mp-33 0.185
M-34, Mp-34 0.330
M-44-78, Mp-44-78 0.444
M-44-108, Mp-44-108 0.615
FEATURES
Utility& Applicable for regulating and on-off functions.
High Power& Variety of models provide choice for low and high thrust
requirements
Construction& Due to multispring arrangement the actuators are
lightweight and compact.
Reversible& The actuators are field reversible without demanding
addition or deletion of parts.
Long service life& Rigid construction and durable components provide a long
lasting service life.
Minimum maintenance& The actuators are virtually maintenance free.
Accuracy& Rolling diaphragm construction provides constant effective
area throughout the stroke.
Manual Operators& The actuators are also available duly incorporated with
Hand Wheel arrangements as Top Mounted or Side Mounted configurations.
Accessories Mounting& Variety of accessories like Valve Positioner, Air Filter Regulator,
Air Lock Relay, Volume Booster, Limit / Proximity Switches, Solenoid Valves, Position Feedback Transmitter, Quick Exhaust Valves, I/P Converter, etc. can be mounted easily.
The increasing air pressure supply moves the diaphragm and actuator
stem opposing the spring force, while with decreasing air pressure
supply the spring force moves the diaphragm in the opposite direction
and back to normal position. To get various loading capacities the
number of springs are altered.
The actuator can be mounted on the shoulder of control valve bonnet
with the help of locking ring. The connection between valve stem and
actuator stem can be achieved with the help of stem connector made
out of two halves. The travel indicator is coupled with the stem
connector which matches with travel scale indicating the position of
inner valve stem.
15
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The actuator stem moves downward with increasing diaphragm
pressure. When this pressure is reduced the opposing spring force
moves the actuator stem upward. On air failure the actuator stem is
pulled to extreme upward position by spring force.
This actuator is suitable for action :
Air Fail to Open - For valves with plugs push down to close.
Air Fail to Close - For valves with plugs push down to open.
Air Fail to Close
Upper Port - For 3 Way Globe valves.
DIRECT ACTING ACTUATORS
The actuator stem moves upward with increasing diaphragm
pressure. When this pressure is reduced the opposing spring force
moves the actuator stem downward. On air failure the actuator stem
is pushed to extreme downward position by spring force.
This actuator is suitable for action :
Air Fail to Close - For valves with plugs push down to close.
Air Fail to Open - For valves with plugs push down to open.
Air Fail to Close
Bottom Part - For 3 Way Globe valves.
REVERSE ACTING ACTUATORS
AIR IN
14
12
13
1
2
4
3
5
7
6
8
911 10
Reverse Acting Models - RM and RMp
AIR IN
11
12
14
13
10
9
8
6
7
5
3
4
2
1Direct Acting Models - DM and DMp
AIR IN
MATERIAL OF CONSTRUCTION
BASIC ACTUATOR
SR.NO.
PART NAME M.O.C.
1 YOKE CAST IRON2 LOCKING RING CARBON STEEL3 SEAL BOX ALUMINIUM 4 GUIDE BUSH TEFLON COATED
STEEL BUSH5 LOWER CASING STEEL (C.R.C. SHEET) 6 CASING NUTS BOLTS CARBON STEEL +
CADMIUM PLATED7 ACTUATOR DIAPHRAGM NITRILE WITH
FABRIC INSERT8 ACTUATOR SPRINGS CHROME VANADIUM
SPRING STEEL9 UPPER CASING STEEL (C.R.C. SHEET)
10 ACTUATOR STEM SS 410 + CHROME PLATED
11 TRAVEL STOPPER CARBON STEEL + CADMIUM PLATED
12 DIAPHRAGM PLATE ALUMINIUM / S.G. IRON13 ‘O’ SEAL RING NITRILE
(STEM TO SEAL BOX)14 EXHAUST NIPPLE CARBON STEEL
16
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PART NAME M.O.C.SR.NO.
TOP MOUNTED HANDWHEEL (TMH)
Dembla Top Mounted Handwheel (TMH) is capable of
providing operating force in both upward and downward
directions and is a continuously connected handwheel. In this
arrangement there is nothing to engage or disengage. It can be
used to operate the control valve throughout its stroke, or as a
travel stop, limiting the amount of closing or opening of the
valve. The actuator is operable with pneumatic air when the
handwheel is set in ‘NEUTRAL’ position. A lock nut is provided
to lock the position of the handwheel. The handwheel yoke is
provided with a stroke indicator which shows the position of
the handwheel mechanism. In addition to it an usual stroke
indicator is fixed to the actuator yoke showing valve stem
position.
555
444
111
222
333
666
777
999
888
10 10 10
11 11 11
12 12 12
13 13 13
AIR IN
Direct Acting Models - DM and DMp
AIR IN
Reverse Acting Models - RM and RMp
12
13
11
10
9
8
1
2
3
4
5
7
6
TOP MOUNTED HANDWHEEL (TMH)
SR.NO.
PART NAME M.O.C.
1 HANDWHEEL CAST IRON 2 TMH YOKE LOCK NUT CARBON STEEL 3 TMH YOKE CAST IRON4 TMH STEM CONNECTOR CARBON STEEL
ALLEN BOLT 5 TMH STEM CONNECTOR CARBON STEEL6 EXTENSION ROD FOR SS 410 + HARD
ACTUATOR STEM CHROME PLATED7 ‘O’ SEAL RING NITRILE / VITON
(STEM TO SEAL BOX)8 STOP PEG CARBON STEEL9 STOP PEG HEX NUT CARBON STEEL
10 TMH STEM SS 410 + HARD CHROME PLATED
11 TMH SCREW NUT CARBON STEEL12 THRUST WASHER GUN METAL13 TMH SCREW CARBON STEEL
SIDE MOUNTED HANDWHEEL (SMH)
1 SMH STEM CARBON STEEL + CADMIUM PLATED
2 HOLLOW SCREW CARBON STEEL + CADMIUM PLATED
3 WORM CARBON STEEL4 SMH BODY CUM HOUSING CAST IRON5 HANDWHEEL CAST IRON6 SMH YOKE CAST IRON7 THRUST BEARING BEARING STEEL8 WORM GEAR SS 410
SIDE MOUNTED HANDWHEEL (SMH)
Dembla Side Mounted Handwheel (SMH) arrangement is
conveniently located on the actuator yoke. The mechanical
advantage of worm gear arrangement reduces the operating
torque, i.e., the valve can be operated through worm gear box.
The side mounted handwheel assembly may be fitted on
actuator as original equipment or can be added to the actuator
later-on at site, if need arises, without modification or alteration
of existing components.
333
444
777
666
888
555
222
111
AIR IN
Direct Acting Models - DM and DMp
333
444
777
666
888
555
222
111
Reverse Acting Models - RM and RMp
AIR IN
SR.NO.
PART NAME M.O.C.
MATERIAL OF CONSTRUCTION
17
www.dembla.com
ÆE
ÆD
H2
B
ÆA
Actuator with Side Mounted
Handwheel
ÆE
H1
ÆD
Top MountedHandwheel
ACTUATOR DIMENSIONSÆD
H
B
ÆA
ÆCÆC
ORDERING INFORMATION
When Ordering specify :-
1. Application - Regulating or on-off.
2. Input Signal Range (Spring setting)
3. Supply Pressure available.
4. Valve Plug Travel.
5. Thrust required for shut off.
6. Valve body mounting details.
TANDEM ACTUATOR
555
444
111
222
333
666
777
999
888
11 11 11
12 12 12
13 3131
171717
161616
151515
14 14 14
AIR IN
Direct ActingModel No - DMht-44-108
AIR IN
10 10 10
555
444
111
222
333
666
777
888
11 11 11
12 12 12
13 1133
171717
161616
151515
14 14 14
AIR INAIR INAIR IN
AIR INAIR INAIR IN
Reverse ActingModel No - RMht-44-108
999
10 10 10
ÆD
H
MODEL :- Mh-44-78
B
ÆA
ÆC
MATERIAL OF CONSTRUCTION
MODEL Nos.TRAVEL/
LIFTÆA
ÆC x
UNF THDS .ÆD Æ EB H1
M-00, Mp-00 18 58 19 5/8" 240 160 337 255 636M-01, Mp-01 18 58 19 3/4" 290 160 351 255 646M-11, Mp-11 18 58 19 3/4" 290 160 361 255 670M-12, Mp-12 28 58 19 3/4" 380 220 403 330 742M-22, Mp-22 38 58 25 7/8" 380 220 457 335 846M-23, Mp-23 38 58 25 7/8" 448 280 505 396 880M-33, Mp-33 58 68 32 1.1/8" 448 280 574 425 995M-34, Mp-34 58 68 32 1.1/8" 600 400 582 -- 1095
M-44-78, Mp-78 78 88 40 1.1/4” 600 400 735 – 1256 M-44-108, Mp-108 108 88 40 1.1/4” 600 400 822 – – Mh-44-78 78 88 40 1.1/2” 600 400 – – – Mh-44-108 108 88 40 1.1/2” 600 400 1225 – –
M-00, Mp-00M-00, Mp-00 1818 5858 1919 5/8"5/8" 240240 160160 337337 255255 636636M-01M-01 1818 5858 1919 3/4"3/4" 290290 160160 351351 255255 646646M-11M-11 1818 5858 1919 3/4"3/4" 290290 160160 361361 255255 670670M-12M-12 2828 5858 1919 3/4"3/4" 380380 220220 403403 330330 742742M-22M-22 3838 5858 2525 7/8"7/8" 380380 220220 457457 335335 846846M-23M-23 3838 5858 2525 7/8"7/8" 448448 280280 505505 396396 880880M-33M-33 5858 6868 3232 1.1/8"1.1/8" 448448 280280 574574 425425 995995M-34M-34 5858 6868 3232 1.1/8"1.1/8" 600600 400400 582582 ---- 10951095
M-44 M-44
, Mp-01, Mp-01, Mp-11, Mp-11, Mp-12, Mp-12, Mp-22, Mp-22, Mp-23, Mp-23, Mp-33, Mp-33, Mp-34, Mp-34-78, Mp-78-78, Mp-78 7878 8888 4040 1.1/4”1.1/4” 600600 400400 735735 –– 12561256
M-44-108, Mp-108 M-44-108, Mp-108 108108 8888 4040 1.1/4”1.1/4” 600600 400400 822822 –– –– Mh-44-78 Mh-44-78 7878 8888 4040 1.1/2”1.1/2” 600600 400400 –– –– –– Mh-44-108 Mh-44-108 108108 8888 4040 1.1/2”1.1/2” 600600 400400 12251225 –– ––
H2 H
18
1 YOKE CAST IRON 2 LOCKING RING CARBON STEEL 3 SEAL BOX CARBON STEEL4 GUIDE BUSH TEFLON COATED
STEEL BUSH5 LOWER CASING STEEL (C.R.C. SHEET)6 CASING SPACER CARBON STEEL7 CASING NUTS BOLTS CARBON STEEL +
CADMIUM PLATED8 ACTUATOR DIAPHRAGM NITRILE WITH
FABRIC INSERT9 CASING HOLDER CARBON STEEL
10 STEM EXTENSION SS 410 + HARDCHROME PLATED
11 ‘O’ SEAL RING NITRILE(STEM TO SEAL BOX)
12 ACTUATOR STEM SS 410 + HARDCHROME PLATED
13 ACTUATOR SPRINGS CHROME VANADIUM SPRING STEEL
14 TRAVEL STOPPER CARBON STEEL + CADMIUM PLATED
15 DIAPHRAGM PLATE ALUMINIUMSPACER
16 DIAPHRAGM PLATE ALUMINIUM17 UPPERCASING STEEL (C.R.C. SHEET)
SR.NO.
PART NAME M.O.C.
www.dembla.com
ACTUATOR DATA
19
ID MODEL Nos. Diaphragm Area Spring No Spring Range Closure Preload
1
2
3
4
5
6
7
8
9
10
Strokecm² in² 2kg/cm newton lbs mm inch
Normal Version
RM-00 / DM-00RM-00
RM-01 / DM-01RM-01
RM-11 / DM-11RM-11
RM-12 / DM-12RM-12
RM-22 / DM-22RM-22
RM-23 / DM-23RM-23
RM-33 / DM-33RM-33
RM-34 / DM-34RM-34
RM-44-78 / DM-44-78RM-44-78
RM-44-108 / DM-44-108RM-44-108
194 30194 30355 55355 55355 55355 55613 95613 95613 95613 95903 140903 140903 140903 140
1613 2501613 2501613 2501613 2501613 2501613 250
A 0.2-1.0 380.24 85.48B 0.4-1.2 760.48 170.96A 0.2-1.0 695.8 156.42B 0.4-1.2 1391.6 312.84A 0.2-1.0 695.8 156.42B 0.4-1.2 1391.6 312.84A 0.2-1.0 1201.48 270.10B 0.4-1.2 2402.96 540.21A 0.2-1.0 1201.48 270.10B 0.4-1.2 2402.96 540.21A 0.2-1.0 1769.88 397.88B 0.4-1.2 3539.76 795.77A 0.2-1.0 1769.88 397.88B 0.4-1.2 3539.76 795.77A 0.2-1.0 3161.48 710.73B 0.4-1.2 6322.96 1421.46A 0.2-1.0 3161.48 710.73B 0.4-1.2 6322.96 1421.46A 0.2-1.0 3161.48 710.73B 0.4-1.2 6322.96 1421.46
18 0.70918 0.70918 0.70918 0.70928 1.10228 1.10228 1.10228 1.10238 1.49638 1.49638 1.49638 1.49658 2.28358 2.28358 2.28358 2.28378 3.07178 3.071
108 4.252108 4.252
Plus Version
1
2
3
4
5
6
7
8
9
10
RMp-00 / DMp-00RMp-00RMp-00
RMp-01 / DMp-01RMp-01RMp-01
RMp-11 / DMp-11RMp-11RMp-11
RMp-12 / DMp-12RMp-12RMp-12
RMp-22 / DMp-22RMp-22RMp-22
RMp-23 / DMp-23RMp-23RMp-23
RMp-33 / DMp-33RMp-33RMp-33
RMp-34 / DMp-34RMp-34RMp-34
RMp-44-78 / DMp-44-78RMp-44-78RMp-44-78
RMp-44-108 / DMp-44-108RMp-44-108RMp-44-108
194 30194 30194 30355 55355 55355 55355 55355 55355 55613 95613 95613 95613 95613 95613 95903 140903 140903 140903 140903 140903 140
1613 2501613 2501613 2501613 2501613 2501613 2501613 2501613 2501613 250
A/A 0.4-2.0 760.48 170.96A/B 0.6-2.2 1140.72 256.45B/B 0.8-2.4 1520.96 341.93A/A 0.4-2.0 1391.6 312.84A/B 0.6-2.2 2087.4 469.27B/B 0.8-2.4 2783.2 625.69A/A 0.4-2.0 1391.6 312.84A/B 0.6-2.2 2087.4 469.27B/B 0.8-2.4 2783.2 625.69A/A 0.4-2.0 2402.96 540.21A/B 0.6-2.2 3604.44 810.31B/B 0.8-2.4 4805.92 1080.41A/A 0.4-2.0 2402.96 540.21A/B 0.6-2.2 3604.44 810.31B/B 0.8-2.4 4805.92 1080.41A/A 0.4-2.0 3539.76 795.77A/B 0.6-2.2 5309.64 1193.65B/B 0.8-2.4 7079.52 1591.54A/A 0.4-2.0 3539.76 795.77A/B 0.6-2.2 5309.64 1193.65B/B 0.8-2.4 7079.52 1591.54A/A 0.4-2.0 6322.96 1421.46A/B 0.6-2.2 9484.44 2132.19B/B 0.8-2.4 12645.92 2842.92A/A 0.4-2.0 6322.96 1421.46A/B 0.6-2.2 9484.44 2132.19B/B 0.8-2.4 12645.92 2842.92A/A 0.4-2.0 6322.96 1421.46A/B 0.6-2.2 9484.44 2132.19B/B 0.8-2.4 12645.92 2842.92
18 0.70918 0.70918 0.70918 0.70918 0.70918 0.70928 1.10228 1.10228 1.10228 1.10228 1.10228 1.10238 1.49638 1.49638 1.49638 1.49638 1.49638 1.49658 2.28358 2.28358 2.28358 2.28358 2.28358 2.28378 3.07178 3.07178 3.071
108 4.252108 4.252108 4.252
RMh-00 / DMh-00RMh-00
RMh-01 / DMh-01RMh-01
RMh-11 / DMh-11RMh-11
RMh-12 / DMh-12RMh-12
RMh-22 / DMh-22RMh-22
RMh-23 / DMh-23RMh-23
RMh-33 / DMh-33RMh-33
RMh-34 / DMh-34RMh-34
RMh-44-78 / DMh-44-78RMh-44-78
RMh-44-108 / DMh-44-108RMh-44-108
RMht-44-108 / DMht-44-108RMht-44-108
194 30194 30355 55355 55355 55355 55613 95613 95613 95613 95903 140903 140903 140903 140
1613 2501613 2501613 2501613 2501613 2501613 2501613 2501613 250
C/C 1.4-3.0 2657.28 598.78D/D 2.0-3.6 3796.11 855.39C/C 1.4-3.0 4870.6 1094.95D/D 2.0-3.6 6958.0 1564.22C/C 1.4-3.0 4870.6 1094.95D/D 2.0-3.6 6958.0 1564.22C/C 1.4-3.0 8410.36 1890.72D/D 2.0-3.6 12014.8 2701.03C/C 1.4-3.0 8410.36 1890.72D/D 2.0-3.6 12014.8 2701.03C/C 1.4-3.0 12389.16 2785.19D/D 2.0-3.6 17698.8 3978.85C/C 1.4-3.0 12389.16 2785.19D/D 2.0-3.6 17698.8 3978.85C/C 1.4-3.0 22130.36 4975.10D/D 2.0-3.6 31614.8 7107.29C/C 1.4-3.0 22130.36 4975.10D/D 2.0-3.6 31614.8 7107.29C/C 1.4-3.0 22310.36 4975.10D/D 2.0-3.6 31614.8 7107.29
C/C + C/C 1.4-3.0 44260.72 9950.2D/D + D/D 2.0-3.6 63229.6 14214.58
18 0.70918 0.70918 0.70918 0.70928 1.10228 1.10228 1.10228 1.10238 1.49638 1.49638 1.49638 1.49658 2.28358 2.28358 2.28358 2.28378 3.07178 3.071
108 4.252108 4.252108 4.252108 4.252
1
2
3
4
5
6
7
8
9
10
11
High Power Version
www.dembla.com
www.dembla.com
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REG. OFFICE & WORKS : Purna Village Thane - Bhiwandi - Agra Road,
Dist : Thane - 421 302, Maharashtra, IndiaC-30, Jai Matadi Compound, Kalher Village,
Thane-Bhiwandi-Agra Road - 421302, Maharashtra, India
Unit 1 :
Unit 2 :
SALES (INTERNATIONAL) OFFICE ADDRESS :M/S Dembla Valves Ltd (Unit 2)C-30, Jai Matadi Compound, Kalher VillageThane-Bhiwandi-Agra Road-421302, Maharashtra, IndiaTel : 912522 275132 / 275184 / 275104 / 241700Fax: 912522 275132 / 275184 / 275104E-Mail: [email protected]
SALES (DOMESTIC) HEAD OFFICE & CORRESPONDENCE ADDRESSM/S Dembla Valves Ltd.1-Adarsha Industrial Estate Pokhran Road No.1, Upvan, Thane – 400 606 (Maharashtra), IndiaTel (O): 022 - 25858234/25853957/25853899Fax: 022 - 25853429E-Mail: [email protected]
Website: www.dembla.com