Dembla Series 1100 Two-Way Globe Control Valve

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


0F 0C

150 300 400 600 900 1500

PSIG 2 Kg/cm PSIG



2 Kg/cm


0F 0C

150 300 400 600 900 1500

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 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 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


‘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



‘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

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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

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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

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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


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


AIR IN

SR.NO.

PART NAME M.O.C.


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


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-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-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

www.dembla.com

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

Dembla Series 1100 Two-Way Globe Control Valve

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Transcript of Dembla Series 1100 Two-Way Globe Control Valve