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Shanghai Guanhuan Valve Manufacturing Co., Ltd
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Shanghai Guanhuan Valve Manufacturing Co., Ltd

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    shghfmc@163.com

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    Industrial Park, Songjiang District, Shanghai

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Exhaust check valve

NegotiableUpdate on 04/04
Model
Nature of the Manufacturer
Producers
Product Category
Place of Origin
Overview
The extraction check valves H664H and H664Y produced by Shanghai Guanhuan Valve Manufacturing Co., Ltd. are used in the extraction system of power plants or thermal power plants
Product Details

Produced by Shanghai Guanhuan Valve Manufacturing Co., LtdExhaust check valve,H664H、H664YExhaust check valveUsed on non corrosive medium pipelines such as steam and water in power plants or thermal power plant extraction systems, or other systems, to prevent sudden pressure drops inside the turbine during sudden load shedding. Shanghai Crown Ring Valve is a professional manufacturerExhaust check valve,The power station valves, extraction pipes, and various heaters allow steam to flow back into the turbine, causing the turbine blades to break and damaging the turbine generator. It also prevents water hammer accidents caused by leakage of the heater system pipeline, which allows water to enter the turbine from the extraction pipeline, in order to protect the safe operation of the turbine.


Technical Specifications:

model

PN

work pressure/Mpa

Applicable Temperature/

Applicable Medium

H664H-20

20

2.0

≤427

Water, steam

H664H-50

50

5.0

H664H-100

100

10.0

H664Y-100I

100

10.0

≤540


Main component materials:

serial number

Part Name

Carbon steel type(C

Alloy steel(I

1

cylinder

A105

A105

2

valve body

WCB

WC6

3

valve disc

WCB

WC6

4

joystick

WCB

WC6

5

shift fork

WCB

WCB

6

pin shaft

2Cr13

304

7

valve cover

WCB

WC6

8

Extension rod and middle hammer

WCB

WCB


Product Category

Applicable temperature ℃

Applicable Medium

Carbon steel type(C

≤425

Non corrosive media such as steam and water

Alloy steel(I

≤550

7..jpg

Appearance and connection dimensions:

Class 150

NPS ( in )

6

8

10

12

14

16

18

20

24

28

30

36

DN ( mm )

150

200

250

300

350

400

450

500

600

700

750

900

L

320

450

540

610

650

650

740

790

915

1040

1120

1450

H

258

300

355

425

438

480

535

555

615

782

825

930

d

152

201

252

288

328

376

425

472

568

670

715

880

D

182

235

295

350

380

435

486

540

645

740

800

650

Wt ( Kg )

85

144

225

350

372

495

625

770

1305

1870

1990

2350

Class 300

NPS ( in )

6

8

10

12

14

20

24

DN ( mm )

150

200

250

300

350

500

600

L

420

526

580

610

700

800

850

H

305

348

410

448

475

620

702

d

152

201

252

288

318

458

545

D

182

235

295

350

386

530

640

Wt ( Kg )

126

210

325

480

575

1145

1830

Class 600

NPS ( in )

6

8

10

12

14

20

24

DN ( mm )

150

200

250

300

350

500

600

L

420

526

580

610

650

680

960

H

365

432

498

578

660

805

900

d

138

182

224

300

352

446

532

D

196

250

298

386

430

536

645

Wt ( Kg )

215

400

600

1060

1435

2455

3620