Pressure Differential Valve

Pressure Differential Valve

ZhengFeng Pressure Differential Valve is used for pressure difference control of heating and air conditioning water systems.

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Application

Product Scope: NPS 2” ~ NPS8” , 10bar ~ 25bar


Features:

Accurate Differential Pressure Control

Easy Connecting with Intelligent Instrument

Easy Adjustment and Maintenance

Completely Automatic Operation


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

Bonnet

Ductile Iron

EN-JS1050

Trim

Stainless Steel 431

BS970 431S29

Seat

Stainless Steel 431

BS970 431S29

Diaphragm

EPDM

Commercial

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

L

mm

230

290

310

350

400

450

500

H1

mm

106

132

140

151

179

218

236

H2

mm

270

304

315

353

371

498

518

D

mm

165

185

200

220

250

285

340

K

mm

125

145

160

180

210

240

295

T

mm

19

19

19

49

19

19

20

n-φd

mm

4-φ19

4-φ19

8-φ19

8-φ19

8-φ19

8-φ23

8-φ23

Q

m3/h

0.8-12

4-29

5-41

6-65

9-90

18-120

40-180

Kv

m3/h

23

52.1

80.6

126

161.5

281.3

321.2


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