products
Two-Door Wafer Check Valve

Two-Door Wafer Check Valve

Application
Product Scope: NPS 2” ~ NPS96” , 10bar ~ 16bar
Features:·Dual-way Sealing
·Body Vulcanized Rubber,Reliable Sealing
·Position Indication,Show the Open-Close Position
·Long-Distance Operation
Design Standard:BS EN593 / BS5155
Face to Face Dimensions:ISO 5752 / EN558 / BS5155
Flange End Dimension :ANSI B16.1 / AWWA C207 / EN1092-2
Coating: Fusion Bonded Epoxy Coating
Inspection and Test:API 598 / ISO 5208 / EN 12226-2

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Application

Product Scope: NPS 2” ~ NPS96” , 10bar ~ 16bar

Features:·Dual-way Sealing

                ·Body Vulcanized Rubber,Reliable Sealing

                ·Position Indication,Show the Open-Close Position

                ·Long-Distance Operation

DesignStandard:BS EN593 / BS5155

Face to Face Dimensions:ISO 5752 / EN558 / BS5155

FlangeEnd Dimension :ANSI B16.1 / AWWA C207 / EN1092-2

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

Ductile Iron

Stainless Steel 420

Stainless Steel 431

EN-JS1050

BS970 420S37

BS970 431S29

Stem


Stainless Steel 420

Stainless Steel 431

BS970 420S37

BS970 431S29

O-Ring

EPDM / NBR

Commercial

Hand Wheel

Ductile Iron

EN-JS1050

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

24

28

L

mm

108

112

114

127

140

140

152

165

178

190

216

222

267

430

470

H

mm

117

137

140

150

182

190

210

251

290

298

336

380

461

496

568

H1

mm

440

470

490

490

700

730

810

950

1000

1080

1130

1280

1350

1451

1550

A

mm

130

130

130

130

325

325

325

370

370

370

370

486

561

561

561

B

mm

120

120

120

120

247

247

247

330

330

330

330

459

570

570

570

D0

mm

80

80

80

80

150

150

150

200

250

250

350

250

300

300

360