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PRODUCT DESCRIPTION
forged steel gate valve
PRODUCT DETAILS

Ansi forged gate valve

 

Size Main Dimensions

DN

150-600Lb

mm

in

L

H

D

M(NPT)

b1

b2

Do

15

1/2

80

160

21.8

1/2

9.7

13.6

100

20

3/4

92

165

27.1

3/4

12.7

13.9

100

25

1

111

192

33.8

1

12.7

17.3

125

32

3/4

120

220

42.6

11/4

12.7

18.0

160

40

11/2

120

245

48.7

11/2

12.7

18.4

160

50

2

140

285

61.1

2

15.7

1912

180

900-1500Lb

15

1/2

111

203

21.8

1/2

9.7

13.6

100

20

3/4

115

216

27.1

3/4

12.7

13.9

100

25

1

120

235

33.8

1

12.7

17.3

125

32

11/4

140

275

42.6

11/4

12.7

18.0

160

40

11/2

162

320

48/7

11/2

12.7

18.4

160

50

2

180

368

611

2

15.7

19.2

180

Ansi Gate Valve Series:Gate Valve

 

Design and Manufacture:Cast steel gate valve to API
600(ISO 10434)or API 6D:Cast stainless steel gate valve
to API 603 or API 600:Forged steel gate valve to API602
lnspection and Test:API 598,API600 or AI6D
End flange dimension:ASME B16.5 (for NPS24)
ASM B16.47 series BAPI605 or ASME B16.47 series AMSS SP-44(for NPS24)
BW end dimension:ASME B16.25
Socket-weld dimension: ASME B16.11
Face to face and end to end:ASME B16.10
Pressure-temperature ratings:ASME B16.34

Gasket of Cover Flange

Carbon steel or stainless steel+flexible graphite combined gasket is used for class 150 gate valve;Stainless steel+flexible graphite wounded gasket is used for Class300 gate valve;Stainless steel+flexible graphite wounded gasket is used for Class600 gate valve,and ring joint gasket is also optional for Class600 gate valve;Ring Joint gasket is used for Class900 gate valve,Pressured seal design is used for Class1500-Class500 gate valve;

Body and Bonnet Connection

The body and bonnet of Class150-Class900 gate valves are usually connected with studs and nuts.And The body and bonnet of Class 1500-Class2500 gate valves are usually of pressured seal design.

Belleville Spring Loaded Packing lmpacting System

lf being requested by the customer,the Belleville spring loaded packing impacting system can be

adopted for enhancing the durability and reliability of the packing seal.

Packing Seal

Molded flexible graphite is used for packing material,PTFE or combined packing material can be also listed if being requested by the customer.The internal surface of the stuffing box,of which area is contacted with the packing,is of excellent finish (Ra3.2m).The stem surface,contacting with the packing,should be rolled and pressed after being precisely machined,so as to reach to the high finish and compactness (Ra0.8m)and ensure the reliable tightness of the stem area.

Actuation

Hand wheel or gear box is usually used for gate valve actuation,Chain wheel and electric actuator can be also used for gate valve actuation if being requested by the customers.

Back Seating Design

All our gate valves have the back seating design.ln most cases,the carbon steel gate valve is fitted with a renewable back seat,For stainless steel gate valve,the back seat is machined directly in the bonnet or is machined after welding.Welding.When the gate valve is at fully open position ,the sealing of the back seat can be very reliable,However,asp per the requirement of API 600,it is not advisable to add or change packing by the mean of back seating wen the valve is res sure containing

Design of Disc

Gate valves with NPS2 are of wedge flexible gate;
Gate valves with NPS2 are of wedge solid gate.

Stem Design

the stem is of integral for ged design,The minimum diameter of the stem shall per the standard requirement,The connection of the stem and disc is T type. The strength of the connecting area is bigger than that of the T threaded part of the stem.The strength test of that area conforms to API 598.

Seat

For carbon steel gate valve,the seat is usually forged steel.The sealing surface of the seat is spray welded with hard alloy specified by the customer,Renewable threaded seat is used for NPS10 gate valves,and welded on seat can be also optional if being requested by the customer Welded on seat is used for NPS10 Carbon steel gate valves. For Stainless steel gate valve,integral seat is usually adopted,or to weld hard alloy directly integrally.Threaded or welded on s-eat is also optional for stainless steel gate valve if being requested by the customer.

Special Gate Valve

Besides the common gate valves,ZC also makes cryogenic gate valve,Jacketed Gate valve,Bellow Sealed Gate Valve,Extension Stem Gate Valve for underground application,Flat Gate Valve,etc

Stem Nut

Usually,the stem nut is made of ASTM A439 D2 it is also can be made of copper ally if being requested by the customer.For large sized gate valves (NPS10 for Class 150,NPS 8 for Class300,NPS 6 for Class 600,NPS 5 for Class900),rolling bearing is fitted at the two sides of the stem nut in order to minimize the open and close torque of the gate valve.

 

Administer Standard

Design And Manufacture

Face to face/
End to end

Flange Dimension

Butt welding dimension

Pressure temperature Lating

Lnspection
And Test

API 600

ANSI B16.10

ANSI B16.5

ANSI B16.25

ANSI B16.34

API 598

API 6D

API 6D

ANSI B16.5

ANSI B16.25

ANSI B16.34

API 6D

Pressure Test

Nominal Pressure

Shell Test

water Seal Test

Air Seal Test

MPa

Lbf/in2

MPa

Lbf/in2

MPa

Lbf/in2

150

3.0

430

2.2

315

0.4-0.7

60-100

300

7.7

1110

5.7

815

600

15.3

2220

11.3

1630

900

23.0

3330

17.0

2445

1500

38.4

5560

28.2

4080

2500

64.0

9255

47.0

6790

Main Part Materials and Property

Body Cover Disc

Stem

Sealing Face

Sealing Shin

Packing

Working Temperature

Suitable Medium

WCB

F6a

With Body
Material
PTFE
Nylon

Enhanced Flexible Graphite 1Cr13/Flexible
Graphite SFB-2 Soft Steel F304 F316 F304L
F316L

Flexible Graphite
Enhanced Flexible
graphite SFB/260
SFP/260 PTFE

425

Water
Steam
Petroleum
Propducts

WC1

F11
F12

450

WC6

540

WC9

570

C5 C12

540

CF8

F304

200

Nitric acid
Acetic acid Urea


 

Size Main Dimensions

DN

150Lb RF

film

in

L

D

D1

D2

b

n-d

H

Do

15

1/2

108

89

60.5

35

11.2

4-16

169

100

20

3/4

117

98

69.9

43

12.7

4-16

192

100

25

1

127

108

79.2

51

14.2

4-16

230

120

32

11/4

140

117

89.0

63

16.0

4-16

246

150

40

11/2

165

127

98.6

73

17.5

4-16

283

180

50

2

178

152

120.7

92

19.0

4-19

323

200

65

21/2

190

178

139.7

105

22.4

4-19

347

220

80

3

203

190

152.4

127

24.0

4-19

383

240

100

4

229

229

190.5

157

24.0

8-19

457

250

125

5

254

254

216.0

186

24.0

8-22.5

632

280

150

6

267

279

241.3

216

25.4

8-22.5

635

300

200

8

292

343

298.5

270

28.4

8-22.5

762

350

250

10

330

406

362.0

324

30.2

12-25.4

892

400

300

12

356

483

431.8

381

32.0

12-25.4

1080

450

350

14

381

533

476.3

413

35.0

12-29

1295

500

400

16

406

597

539.8

470

36.6

16-29

1435

550

450

18

432

635

577.9

533

39.6

16-32

1626

600

500

20

457

698

635.0

584

43.0

20-32

1829

600

600

24

508

813

749.3

692

47.8

20-35

2175

650

650

26

559

786

744 5

711

41.1

36-22.5

2235

700

700

28

610

837

795.3

762

44.5

40-22.5

2310

750

750

30

610

887

846

813

44.5

44-22.5

2695

800

800

32

660

941

900

864

46.0

48-22.5

3708

850

900

36

711

1057

1009.7

972

52.3

44-25.4

3924

900

1000

40

812

1175

1120.6

1080

55.6

44-28.5

4318

950

1050

42

787

1226

1171.5

1130

58.7

48-28 5

-

1000

1200

48

914

1392

1335

1289

65

44-32

-

1000

1350

54

-

1549.4

1492.3

1441.5

71.4

56-32

-

1200

1400

56

-

1600

1543

1492.3

73.2

60-32

-

1250

1500

60

1067

1725.7

1662.2

1600

76.2

52-35

-

1300


 

Size Main Dimensions

DN

300Lb RF

mm

in

L

D

D1

D2

b

n-d

H

Do

15

1/2

140

95

66.5

35

14.2

4-16

169

120

20

3/4

152

117

82.5

43

16.0

4-19

193

150

25

1

165

123

89.0

51

17.5

4-19

230

160

32

11/4

178

133

98.5

63

19.0

4-19

246

180

40

11/2

190

155

114.3

73

20.6

4-22.5

283

200

50

2

216

165

127.0

92

22.4

8-19

330

220

65

21/2

241

190

149.4

105

25.4

8-22.5

368

240

80

3

283

210

168.1

127

28.4

8-22.5

394

280

100

4

305

254

200.2

157

31.8

8-22.5

473

300

125

5

381

279

235.0

186

35.0

8-22.5

660

350

150

6

403

318

269.7

216

36.6

12-22.5

711

400

200

8

419

381

330.2

270

41.2

12-25.4

813

450

250

10

457

444

387.4

324

47.8

16-28.5

1003

500

300

12

502

521

450.8

381

50.8

16-32

1137

550

350

14

762

584

514.4

413

54.0

20-32

1489

600

400

16

838

648

571.5

470

57.2

20-35

1580

650

450

18

914

711

628.7

533

60.5

24-35

2017

700

500

20

991

775

685.8

584

63.5

24-35

2228

700

600

24

1143

914

812.8

692

70.0

24-41

2650

750

650

26

1245

867

803.1

736 6

90.0

32-35

3219

800

700

28

1346

921

857.3

787.4

90.0

36-35

3378

850

750

30

1397

991

902.8

844.6

93.7

36-38

3530

900

800

32

1524

1054

978

902

103

32-41.2

3708

1000

900

36

1727.2

1171.5

1089.2

1010

103

32-44.5

3924

1100

1000

40

-

1273

1190.8

1115

115.8

40-4.5

4318

1100

1050

42

-

1333.5

1244.6

1168.4

119

36-47.8

-

1100

1200

48

-

1511.3

1416

1327.2

128.5

40-50.8

-

1100

 

Size Main Dimensions

DN

600Lb͹淨RF

mm

in

L

D

D1

D2

b

n-d

H

Do

15

1/2

165

95

66.5

35

14.5

4-16

169

160

20

3/4

190

117

82.5

43

16

4-19

193

180

25

1

216

124

89.0

51

17.5

4-19

230

200

32

11/4

229

133

98.5

63

21

4-19

246

220

40

11/2

241

156

114.3

73

22.5

4-22.5

283

240

50

2

292

165

127.0

92

25.4

8-19

425

250

65

21/2

330

190

149.4

105

28.5

8-22.5

485

280

80

3

356

210

168.1

127

31.8

8-22.5

510

300

100

4

432

273

216.0

157

38.1

8-25.4

610

350

125

5

508

330

266.7

186

44.5

8-28.5

700

400

150

6

559

356

292.1

216

47.8

12-28.5

820

450

200

8

660

419

349.3

270

56

12-32

920

500

250

10

787

508

431.8

324

63.5

16-35

1080

550

300

12

838

559

489.0

381

67

20-35

1220

600

350

14

889

603

527.0

413

70

20-38

1473

650

400

16

991

686

603.3

470

76.5

20-41

1651

700

450

18

1092

743

654.0

533

83

20-44.5

1727

750

500

20

1194

813

723.9

584

89

24-44.5

2019

800

600

24

1397

940

838.2

692

102

24-51

2155

850

650

26

1447.8

889

806.5

726.9

111.3

28-44.5

2300

850

700

28

1549.4

952.5

863.6

784.4

115.8

24-47.8

450

900

750

30

1651

1022.4

927.1

841.3

125.5

28-50.8

2756

950

800

32

1778

1085.9

984.3

895.4

130

28-53.8

2812

1000

900

36

2028.8

1212.9

1105

1010

146

28-60.5

-

1100

1000

40

-

1320.8

121 2.9

1111.3

158.8

32-60.5

-

1100

Size Main Dimensions

DN

900Lb RTJ

mm

in

L

D

D1

D2

b

n-d

H

Do

50

2

371

216

165.0

95.3

46.0

8-25.4

521

300

65

21/2

422

244

190.5

108.0

49.0

8-28.5

584

350

80

3

384

241

190.5

123.8

46.0

8-25.4

648

350

100

4

460

292

235.0

149.2

52.4

8-32

750

400

125

5

562

349

279.4

181.0

58.7

8-35

780

400

150

6

613

381

317.5

211.1

63.6

12-32

800

500

200

8

740

470

393.7

269.9

71.4

12-38

940

600

250

10

841

546

469.9

323.9

77.8

16-38

1130

600

300

12

968

610

533.4

381.0

87.2

20-38

1340

650

350

14

1038

641

558.8

419.1

97.0

20-41

1543

700

400

16

1140

705

616

419.1

97.0

20-44

1600

750

450

18

1232

787

685.8

466.9

111.6

20-50

1830

800

500

20

1334

857

749.3

466.9

116

20-54

2100

850

600

24

1568

1041

901.7

523.7

147.7

20-66.5

2610

900

1500Lb RTJ

50

2

371

216

165.1

95.3

46.0

8-25.4

614

300

65

21/2

422

244

190.5

108.0

49.0

8-28.5

705

350

80

3

473

267

203.2

136.5

557

8-32

705

400

100

4

549

311

241.3

161.9

61.8

8-35

927

400

125

5

676

375

292.1

193.7

81.1

8-41

1120

500

150

6

711

394

317.5

211.1

92.1

12-38

1191

600

200

8

841.5

483

393 7

269.9

103.0

12-44.5

1524

650

250

10

1000

584

482.6

323.9

119.1

12-51

1854

700

300

12

1146

673

571.5

381.0

138.2

16-54

2184

700

350

14

1276

749

635.0

419.1

149.2

16-60.5

2216

800

400

16

1406

825.5

704.9

419.1

154

16-66.5

2210

800

450

18

1559

914

774.7

466.9

172

16-73


850

500

20

1686

984

832

466.9

186

16-79


900

600

24

1971

1168

990.6

523.7

211

16-92


950

2500Lb RTJ

50

2

454

235

171.5

101.6

58.7

8-28.5

523

350

65

21/2

514

267

196.9

111.1

66.7

8-32

631

350

80

3

584

305

228.6

127.0

76.1

8-35

735

400

100

4

683

356

273.0

157.2

87.3

8-41

891

500

125

5

806

419

323.9

190.5

104 6

8-48

1047

650

150

6

927

483

368.3

228.6

120.7

8-54

1144

700

200

8

1038

552

438.2

279.4

141.3

12-54

1392

700

250

10

1292

673

539.8

342.9

182.6

12-66.5

1614

800

300

12

1444

762

619.3

371.3

192

12-73

1900

850


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