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Ansi Gate Valve Please choose the products:

Name: Ansi Gate Valve
Classification: gate valve → Power-Station Valve Series
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 Detailed introduction of the products

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 NPS≤24)
ASM B16.47 series B、API605 or ASME B16.47 series A、MSS SP-44(for NPS>24)
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,Pressureized 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.Aand The body and bonnet of Class 1500-Class2500 gate valves are usually of pressureized seal design.

Belleville Spring Loaded Packing lmpacting System

lf being requested by the customer,the Belleville spring loaded packing impacting system can be a do pted 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 Lised if being requested by the customer.The internal suface of the stuffing box,of which area is contacted with the packing,is of excellent finish (Ra3.2μm).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 (Ra0.8μm)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 atfer 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 wiht NPS≥2 are of wedge flexible gate;
Gate valves with NPS<2 are of wedge solid gate.

Stem Design

the stem is of integral for ged design,The minimum diameter of the stem shall per the standared 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 NPS≤10 gate valves,and welded on seat can be also optional if being requested by the customer Welded on seat is used for NPS≤10 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,Baiqiang also makes cryogenic gate valve,Jacketed Gate valve,Bellow Sealed Gate Valve,Extension Stem Gate Valve for underground application,Falt 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.

[NextPage]

· 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

CF8M

F316

CF3

F304L

CF3M

F316L

[NextPage]

·Size Main Dimensions

DN

150Lb凸面法兰RF

film

in

L

D

D1

D2

b

n-φd

H

Do

15

1/2

108

89

60.5

35

11.2

4-φ16

169

100

20

3/4

117

98

69.9

43

12.7

4-φ16

192

100

25

1

127

108

79.2

51

14.2

4-φ16

230

120

32

11/4

140

117

89.0

63

16.0

4-φ16

246

150

40

11/2

165

127

98.6

73

17.5

4-φ16

283

180

50

2

178

152

120.7

92

19.0 

4-φ19

323

200

65

21/2

190

178

139.7

105

22.4

4-φ19

347

220

80

3

203

190

152.4

127

24.0 

4-φ19

383

240

100

4

229

229

190.5

157

24.0

8-φ19

457

250

125

5

254

254

216.0

186

24.0

8-φ22.5

632

280

150

6

267

279

241.3

216

25.4

8-φ22.5

635

300

200

8

292

343

298.5

270

28.4

8-φ22.5

762

350

250

10

330

406

362.0

324

30.2

12-φ25.4

892

400

300

12

356

483

431.8

381

32.0 

12-φ25.4

1080

450

350

14

381

533

476.3

413

35.0 

12-φ29

1295

500

400

16

406

597

539.8

470

36.6

16-φ29

1435

550

450

18

432

635

577.9

533

39.6

16-φ32

1626

600

500

20

457

698

635.0

584

43.0 

20-φ32

1829

600

600

24

508

813

749.3

692

47.8

20-φ35

2175

650

650

26

559

786

744 5

711

41.1

36-φ22.5

2235

700

700

28

610

837

795.3

762

44.5

40-φ22.5

2310

750

750

30

610

887

846

813

44.5

44-φ22.5

2695

800

800

32

660

941

900

864

46.0 

48-φ22.5

3708

850

900

36

711

1057

1009.7

972

52.3

44-φ25.4

3924

900

1000

40

812

1175

1120.6

1080

55.6

44-φ28.5

4318

950

1050

42

787

1226

1171.5

1130

58.7

48-φ28 5

-

1000

1200

48

914

1392

1335

1289

65

44-φ32

-

1000

1350

54

-

1549.4

1492.3

1441.5

71.4

56-φ32

-

1200

1400

56

-

1600

1543

1492.3

73.2

60-φ32

-

1250

1500

60

1067

1725.7

1662.2

1600

76.2

52-φ35

-

1300

[NextPage]

·Size Main Dimensions

DN

300Lb凸面法兰RF

mm

in

L

D

D1

D2

b

n-φd

H

Do

15

1/2

140

95

66.5

35

14.2

4-φ16

169

120

20

3/4

152

117

82.5

43

16.0 

4-φ19

193

150

25

1

165

123

89.0

51

17.5

4-φ19

230

160

32

11/4

178

133

98.5

63

19.0

4-φ19

246

180

40

11/2

190

155

114.3

73

20.6

4-φ22.5

283

200

50

2

216

165

127.0

92

22.4

8-φ19

330

220

65

21/2

241

190

149.4

105

25.4

8-φ22.5

368

240

80

3

283

210

168.1

127

28.4

8-φ22.5

394

280

100

4

305

254

200.2

157

31.8

8-φ22.5

473

300

125

5

381

279

235.0 

186

35.0 

8-φ22.5

660

350

150

6

403

318

269.7

216

36.6

12-φ22.5

711

400

200

8

419

381

330.2

270

41.2

12-φ25.4

813

450

250

10

457

444

387.4

324

47.8

16-φ28.5

1003

500

300

12

502

521

450.8

381

50.8

16-φ32

1137

550

350

14

762

584

514.4

413

54.0 

20-φ32

1489

600

400

16

838

648

571.5

470

57.2

20-φ35

1580

650

450

18

914

711

628.7

533

60.5

24-φ35

2017

700

500

20

991

775

685.8

584

63.5

24-φ35

2228

700

600

24

1143

914

812.8

692

70.0 

24-φ41

2650

750

650

26

1245

867

803.1

736 6

90.0 

32-φ35

3219

800

700

28

1346

921

857.3

787.4

90.0 

36-φ35

3378

850

750

30

1397

991

902.8

844.6

93.7

36-φ38

3530

900

800

32

1524

1054

978

902

103

32-φ41.2

3708

1000

900

36

1727.2

1171.5

1089.2

1010

103

32-φ44.5

3924

1100

1000

40

-

1273

1190.8

1115

115.8

40-φ4.5

4318

1100

1050

42

-

1333.5

1244.6

1168.4

119

36-φ47.8

-

1100

1200

48

-

1511.3

1416

1327.2

128.5

40-φ50.8

-

1100

[NextPage]

·Size Main Dimensions

DN

600Lb凸面法兰RF

mm

in

L

D

D1

D2

b

n-φd

H

Do

15

1/2

165

95

66.5

35

14.5

4-φ16

169

160

20

3/4

190

117

82.5

43

16

4-φ19

193

180

25

1

216

124

89.0

51

17.5

4-φ19

230

200

32

11/4

229

133

98.5

63

21

4-φ19

246

220

40

11/2

241

156

114.3

73

22.5

4-φ22.5

283

240

50

2

292

165

127.0

92

25.4

8-φ19

425

250

65

21/2

330

190

149.4

105

28.5

8-φ22.5

485

280

80

3

356

210

168.1

127

31.8

8-φ22.5

510 

300

100

4

432

273

216.0

157

38.1

8-φ25.4

610 

350

125

5

508

330

266.7

186

44.5

8-φ28.5

700

400

150

6

559

356

292.1

216

47.8

12-φ28.5

820

450

200

8

660

419

349.3

270

56

12-φ32

920

500

250

10

787

508

431.8

324

63.5

16-φ35

1080

550

300

12

838

559

489.0

381

67

20-φ35

1220

600

350

14

889

603

527.0

413

70

20-φ38

1473

650

400

16

991

686

603.3

470

76.5

20-φ41

1651

700

450

18

1092

743

654.0 

533

83

20-φ44.5

1727

750

500

20

1194

813

723.9

584

89

24-φ44.5

2019

800

600

24

1397

940

838.2

692

102

24-φ51

2155

850

650

26

1447.8

889

806.5

726.9

111.3

28-φ44.5

2300

850

700

28

1549.4

952.5

863.6

784.4

115.8

24-φ47.8

450

900

750

30

1651

1022.4

927.1

841.3

125.5

28-φ50.8

2756

950

800

32

1778

1085.9

984.3

895.4

130

28-φ53.8

2812

1000

900

36

2028.8

1212.9

1105

1010

146

28-φ60.5

-

1100

1000

40

-

1320.8

121 2.9

1111.3

158.8

32-φ60.5

-

1100

[NextPage]

Size  Main Dimensions
DN 900Lb环槽法兰RTJ
mm in L D D1 D2 b n-φd H Do
50 2 371 216 165.0 95.3 46.0 8-φ25.4 521 300
65 21/2 422 244 190.5 108.0 49.0 8-φ28.5 584 350
80 3 384 241 190.5 123.8 46.0 8-φ25.4 648 350
100 4 460 292 235.0 149.2 52.4 8-φ32 750 400
125 5 562 349 279.4 181.0 58.7 8-φ35 780 400
150 6 613 381 317.5 211.1 63.6 12-φ32 800 500
200 8 740 470 393.7 269.9 71.4 12-φ38 940 600
250 10 841 546 469.9 323.9 77.8 16-φ38 1130 600
300 12 968 610 533.4 381.0 87.2 20-φ38 1340 650
350 14 1038 641 558.8 419.1 97.0 20-φ41 1543 700
400 16 1140 705 616 419.1 97.0 20-φ44 1600 750
450 18 1232 787 685.8 466.9 111.6 20-φ50 1830 800
500 20 1334 857 749.3 466.9 116 20-φ54 2100 850
600 24 1568 1041 901.7 523.7 147.7 20-φ66.5 2610 900
1500Lb环槽法兰RTJ
50 2 371 216 165.1 95.3 46.0 8-φ25.4 614 300
65 21/2 422 244 190.5 108.0 49.0 8-φ28.5 705 350
80 3 473 267 203.2 136.5 557 8-φ32 705 400
100 4 549 311 241.3 161.9 61.8 8-φ35 927 400
125 5 676 375 292.1 193.7 81.1 8-φ41 1120 500
150 6 711 394 317.5 211.1 92.1 12-φ38 1191 600
200 8 841.5 483 393 7 269.9 103.0 12-φ44.5 1524 650
250 10 1000 584 482.6 323.9 119.1 12-φ51 1854 700
300 12 1146 673 571.5 381.0 138.2 16-φ54 2184 700
350 14 1276 749 635.0 419.1 149.2 16-φ60.5 2216 800
400 16 1406 825.5 704.9 419.1 154 16-φ66.5 2210 800
450 18 1559 914 774.7 466.9 172 16-φ73   850
500 20 1686 984 832 466.9 186 16-φ79   900
600 24 1971 1168 990.6 523.7 211 16-φ92   950
2500Lb环槽法兰RTJ
50 2 454 235 171.5 101.6 58.7 8-φ28.5 523 350
65 21/2 514 267 196.9 111.1 66.7 8-φ32 631 350
80 3 584 305 228.6 127.0 76.1 8-φ35 735 400
100 4 683 356 273.0 157.2 87.3 8-φ41 891 500
125 5 806 419 323.9 190.5 104 6 8-φ48 1047 650
150 6 927 483 368.3 228.6 120.7 8-φ54 1144 700
200 8 1038 552 438.2 279.4 141.3 12-φ54 1392 700
250 10 1292 673 539.8 342.9 182.6 12-φ66.5 1614 800
300 12 1444 762 619.3 371.3 192 12-φ73 1900 850

 

 
 
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