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Forged Gate Valves

Gate Valves

A compact but extremely sturdy design for high pressure-temperature service.
Solid CoCr alloy wedge (optional) ensures low friction and long service life....

Features and benefits

● 

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● A compact but extremely sturdy design for high pressure-temperature service.

● Solid CoCr alloy wedge (optional) ensures low friction and long service life.

● For Class 1500 valves and for steam service, seats are seal-welded to the body.

● Packing rings are precompressed to 4000 psi to provide a high integrity seal.

● For welded bonnet valves, the bonnet is threaded in and torqued to an engineered torque value and the body bonnet joint is strength-welded, offering double protection against leakage. (Body/bonnet threads and strength-weld).

● Fully guided wedge reduces wear on seating surfaces.

● Repairable 2-piece stem drive.

● Parallel slide gate valves also available.

● Optional design available with double packing, leak-off connection, live-loading and a packing blowout for easy removal of old packing. 

● Size range(s)

NPS 1/4 - 2 (DN 8 - 50)

● Pressure rating

ASME Classes 150 - 4500

● Standard connections

Threaded, socket weld, flanged

 

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Flanged End Gate Valve 150Lb~600Lb         Standard Material Specifications

NO.

Part Name

CS to ASTM

AS to ASTM

SS to ASTM

Type A105

Type F22

Type F304(L)

Type F316(L)

1

Body

A105

A182 F22

A182 F304(L)

A182 F316(L)

2

Seat Ring

A276 420

A276 304

A276 304(L)

A276 316(L)

3

Wedge

A276 410 & 430

A182 F304

A182 F304(L)

A182 F316(L)

4

Stem

A182 F6

A182 F304

A182 F304(L)

A182 F316(L)

5

Gasket

Corrugated SS + graphite

SS + PTFE

6

Bonnet

A105

A182 F22

A182 F304(L)

A182 F316(L)

7

Bonnet Bolt

A193 B7

A193 B16

A193 B8

A193 B8M

8

Pin

A276 420

A276 304

9

Gland

A276 410

A182 F304(L)

A182 F316(L)

10

Gland Eyebolt

A193 B7

A193 B16

A193 B8

A193 B8M

11

Gland Flange

A105

A182 F11

A182 F304(L)

A182 F316(L)

12

Gland Nut

A193 2H

A194 4

A194 8

A194 8M

13

Yoke Nut

A276 410

14

H.W. Lock Nut

A194 2H

A194 4

A194 8

A194 8M

15

Nameplate

SS

16

Hand wheel

A197

17

Bearing Gasket

A473 431

18

Stem Packing

Flexible Graphite

PTFE

Suitable Medium

W.O.G. etc

W.O.G. etc

HNO3CH3OOH etc

Suitable Temperature

-29 425 

-29 550 

-29 180 

Note: Other materials are available upon request.


Dimensions (mm) and Weights (Kg)


NPS

1/2

3/4

1

1/4

1-1/2

2

L(RF)L1(BW)

150

108

117

127

140

165

203

300

140

152

165

178

190

216

600

165

190

216

229

241

292

H(OPEN)

150,300

158

169

197

236

246

283

600

169

197

236

246

283

320

W

100

100

125

160

160

180

Weights

150

RF

4.5

5.2

8.2

11.5

12.5

20.3

BW

2.8

3.3

5.4

7.1

8.2

12.5

300

RF

4.8

6.2

9.3

14

15.5

23.4

BW

3.5

4.4

6.8

8.1

9.2

15.4

600

RF

5.9

7.4

10.4

16.2

17.5

28.3

BW

4.5

5.1

8.2

10.5

12.4

20.1



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