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Butterfly Valve / Worm Gear Wafer Butterfly Valves
Worm Gear Wafer Butterfly Valves

Worm Gear Wafer Butterfly Valves

Application
Product Scope: NPS 2” ~ NPS40” , 10bar ~ 25bar
Features:·Dual-way Sealing
·Removable Rubber Sleeve,Easily Replaceable
·Position Indication,Show the Open-Close Position
Design Standard:MSS SP-67 / API 609 / EN593 / BS5155
Face to Face Dimensions:API 609 / 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

Online Inquiry

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

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

A

mm

80

89

95

114

127

139

175

203

242

B

mm

161

175

181

200

213

226

260

292

337

C

mm

200

200

200

200

200

200

250

250

250

φw

mm

180

180

180

180

180

180

250

250

300

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

250

343

343

343

439

439

439

485

485

φw

mm

300

300

300

300

350

350

350

400

400

L

mm

76

102

114

127

151

165

167

203

216