Wafer Butterfly Valve

Wafer Butterfly Valve

ZhengFeng Wafer Butterfly Valve is used for petroleum, water and electricity, ship, water supply and drainage and other systems.

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Application

Product Scope: NPS 2” ~ NPS40” , 10bar ~ 25bar


Features:

Dual-way Sealing

Removable Rubber Sleeve,Easily Replaceable

Position Indication,Show the Open-Close Position


DesignStandard:MSS SP-67 / API 609 / EN593 / BS5155

Face to Face Dimensions:API 609 / 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

Handle

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

A

mm

80

89

95

114

127

139

175

203

242

B

mm

161

175

181

200

213

226

260

292

337

C

mm

30

30

30

30

30

30

34

34

34

L

mm

42

45

45

51

55

55

60

67

76












NPS

In

14

16

18

20

24

28

32

36

40

A

mm

267

316

334

370

468

530

602

661

724

B

mm

368

400

422

480

562

626

666

722

706

C

mm

40

52

52

64

70

95

95

130

130

L

mm

76

102

114

127

151

165

167

203

216


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