Slient Check Valve

Slient Check Valve

ZhengFeng Slient Check Valve is used in high-rise buildings, fire protection systems, cooling and circulating water systems.

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Application

Product Scope: NPS 2” ~ NPS20” , 10bar ~ 25bar


Features:

Operates Horizontally or Vertically

Non-Slam Closure

Field Replaceable Parts

Optional Resilient Seat


Face to Face Dimensions:AMSE B16.10

Flange End Dimension :AMSE B16.10

Coating: Fusion Bonded Epoxy Coating 

Inspection and Test:API 598 / ISO 5208 / EN 12226-2


Part

Material

EN Spec.

Body

Ductile Iron

EN-JS1050

Disc

Stainless Steel 420

Stainless Steel 431

BS970 420S37

BS970 431S29

Shaft Sleeve

CuZn36Pb1As

EN12164

For materials options not listed,consult factory.

ZhengFeng manufactures valves in more than 50 different alloys.


NPS

In

2

2 1/2

3

4

5

6

8

10

12

14

16

18

20

L

mm

105

142

160

175

190

215

225

250

300

350

400

450

500

D

mm

165

185

200

220

250

285

340

405

460

520

580

640

715

D1

mm

125

145

160

180

210

240

295

355

410

470

525

585

650

D2

mm

99

118

132

158

184

211

266

319

370

429

480

548

609

b

mm

19

19

19

19

19

19

20

22

24.5

26.5

28

30

31.5

n-φ

mm

4-φ19

4-φ19

8-φ19

8-φ19

8-φ19

8-φ23

12-φ23

12-φ28

12-φ28

16-φ28

16-φ31

20-φ31

20-φ34


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