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Check Valve

•Size: 4" ~60"

•Pressure Rating: CL150-CL2500.

•Connection end: FF, RF, RTJ, BW.

•Body Material: Body Materials Carbon Steel, Stainless Steel, Alloy steel, Duplex SS etc. Optional materials on request.

•Design Standard: BS1868,AP| 594, API 6D

•Test: AP| 598, ISO 5208

•Flange End: ASME B16.5, ASME B16.47

•Welding End: ASME B16.25

•Face to Face: ASME B16.10

•Sour Service: NACE MR 0175

•Application conditions: The check valve can be used in the pipeline of liquid, gas, steam and various corrosive media, and is suitable for the pipeline system in various industries to prevent the reverse flow of the medium.

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Description

Cast  Steel  Swing  Check Valve    


Technical Specification
Design and Manufacture:BS1868 or API 6D
Inspection and Test:API 598 or API 6D
End flange dimension:ASME B16.5 、ASME B16.47 A、MSS SP-44;ASME B16.47 B 、API 605
BW end dimension:ASME  B16.25
Face to face and end to end:ASME B16.10
Pressure-temperature   ratings:ASME    B16.34

Wall thickness dimension:API 600 and BS 1868

Form of Major Part Material 

Parts No. Parts Name Materials
WCB/Trim 1 WCB/Trim 5 WCB/Trim 8 CF8/304 CF8M/316
1 Body ASTM A216 WCB ASTM A216 WCB ASTM A216 WCB ASTM A351 CF8 ASTM A351 CF8M
2 Seat ring A105+13Cr A105+STL A105+STL ASTM A351 CF8 ASTM A351 CF8M
3 Disc ASTM A216 WCB+13Cr ASTM A216WCB+STL ASTM A216 WCB+13Cr ASTM A351 CF8 ASTM A351 CF8M
4 Arm ASTM A216 WCB ASTM A216 WCB ASTM A216 WCB ASTM A351 CF8 ASTM A351 CF8M
5 Nut ASTM  A1942H ASTM  A1942H ASTM  A1942H ASTM  A1948 ASTM  A1948M
6 Arm pin ASTM A182 F6e ASTM A182 F6a ASTM A182 F6a ASTM A182 F304 ASTM A182 F316
7 Yoke ASTM A216 WCB ASTM A216 WCB ASTM A216 WCE ASTM A351 CF8 ASTM A351 CF8M
8 Bonnet nut ASTM  A1942H ASTM  A1942H ASTM A1942H ASTM  A1948 ASTM  A1948M
9 Bonnet bolt ASTM A193 B7 ASTM A193 B7 ASTM A193 B7 ASTM A193 B8 ASTM A193 B8N
10 Bolt ASTM A193 B7 ASTM A193 B7 ASTM A193 B7 ASTM A193 B8 ASTM A193 B8N
11 Gasket 304 sheet+Graphite 304 sheet+Graphite 304 sheet +Graphite 304+Graphite 316+Graphite
12 Bonnet ASTM A216 WCB ASTM A216 WCB ASTM A216 WCB ASTM A351 CF8 ASTM A351 CF8M
13 Eye bol ASTM A18- ASTM A181 ASTM A181 ASTM A181 ASTM A181
Note:The chart above only lists out some common composition of steel check valve parts.We may provide other different parts material composition

according to the customer's request or the actual valve working condition.

Cast Steel Lift Check Valve


Class 150~Class 900 Cast Steel Lift Check Valve

Size

Class 150

Class 300

NPS

DN

Dimensions(mm)

Weight

(kg)

Dimensions(mm)

Weight

(kg)

L

d

H

L

d

H

RF

RTJ

BW

RF

RTJ

BW

4

100

292

305

292

102

194

42

356

371

356

102

195

86

5

125

356

368

356

127

210

60

400

416

400

127

223

120

6

150

406

419

406

152

226

75

445

460

445

152

245

180

8

200

495

508

495

203

250

118

533

549

533

203

280

220

10

250

622

635

622

254

275

194

622

638

622

254

336

310

12

300

699

711

699

305

332

320

711

727

711

305

380

510


Size

Class 600

Class 900

NPS

DN

Dimensions(mm)

Weight

(kg)

Dimensions(mm)

Weight

(kg)

L

d

H

L

d

H

RF

RTJ

BW

RF

RTJ

BW

4

100

432

435

432

102

215

98

457

460

457

100

270

140

5

125

508

511

508

125

240

155

559

562

559

125

300

210

6

150

559

562

559

152

279

230

610

613

610

150

350

300

8

200

660

664

660

200

328

300

737

740

737

200

400

390


Forged Steel Globe Valve


Technical Specification

Steel Check Valves,API 602

Steel Valves,ASME B16.34

Face to Face,Manufacturer Standard

Face to Face,Flanged,ASME B16.10

End Flanges,ASME B16.5

Buttwelding  Ends,ASME  B16.25

Socket-welding  Ends,ASME  B16.11
Screwed Ends,ASME B1.20.1

Inspection and Test,API 598
Design Description

Bolted Bonnet Cap

Choice of WB,Welding Bonnet

Lift or Swing Type
Seat Rings Integral with Body of Lift

Horizontal or Vertical Service

Socket Weld Ends

SW,Socket-welding Ends

SC,Screwed  Ends

BW,Buttwelding Ends

Flanged Ends

No. Part Name ASTM Material
Carbon Steel F11 F22 304 Type 316 Type 304L Type 316L Type 20 Alloy
Body A105 A182 F11 A182 F22 A182 F304 A182 F316 A182 F304L A182 F316L 20-Alloy
2 Bonnet A105 A182 F11 A182 F22 A182 F304 A182 F316 A182 F304L A182 F316L 20-Alloy
3 Disc A182 F6a A182 F11+HF A182 F22+HF A182 F304 A182 F216 A182 F304L A182 F316L 20-Alloy
4 Hinqe A182 F6a A182 F11 A182 F22 A182 F304 A182 F316 A182 F304L A182 F316L 20-Alloy
5 Seal A182 F6a A182 F11+HF A182 F22+HF A182 F304 A182 F316 A182 F304L A182 F316L 20-Alloy
6 Bonnet Gasket 304+Graphit 304+Graphit 304+Graphit 304+Graphit 316+Graphit 304L+Graphit 316L+Graphit 316+Graphit
7 Bonnet Bolt A193 B7 A193 B7 A193 B16 A193 B8 A193 B8M A193 B8 A193 B8M A193 B8M

Wafer Type Double Disc Swing Check Valve


Technical Specification
Structural formation:Dual-disc swing type check valve
Design  standard:API  594
Face to face:ASME B16.0
Flanged  ends:ASME  B16.5
Test  &inspection:API  598


Parts No Parts Name Materials
1 Body ղ&Բ;&Բ;&Բ;&Բ;&Բ;&Բ;216-°、Aղ&Բ;&Բ;&Բ;&Բ;&Բ;&Բ;351-8、C8、C8、C3、C3
2 Disc ղ&Բ;&Բ;&Բ;&Բ;&Բ;216-°、Aղ&Բ;&Բ;&Բ;&Բ;&Բ;351-8、C8、C8、C3、C3
3 Pivot ASTM A182 Gr.F6a、ASTM A182 F22、ASTM A182-F304、F316、F321、F304L、F316L
4 Spring AISI9260、AISI 6150、ASTM A182-F304、F316、F321、F304L、F316L

Main Size of Outside &Weight

Ѵǻ:76、H76

Class DN NPS Dimensions(mm) Weigh Class DN NPS
(mm (in) L D (kg) mm (in)
100 4 73 173 6 80 3
125 5 86 196 9 100 4
150 6 98 222 12 125 5
200 8 127 279 22 150 6
250 10 146 339 38 250 10
300 12 181 409 54 300 12
350 14 184 450 80 350 14
400 16 191 514 118 400 16
450 18 203 549 210
500 20 219 606 240
600 24 222 717 410

Specification

Standard

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