products
No-Rising Stem Gate Valve

No-Rising Stem Gate Valve

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

Features:·Reliable Three “O”-Rings Sealing,On-Line Changing
·Body without Gate Slot, no Impurities Filling up
·Zero Leakage under 1.5 Times Nominal Pressure or 0.02mpa


Design Standard:BS 5150 / EN 1171 / AWWA C509
Face to Face Dimensions:ISO 5752 / EN558-1 / ASME B16.10
Flange End Dimension :EN1092-2 / ASME B16.10
Coating: Fusion Bonded Epoxy Coating
Inspection and Test:API 598 / ISO 5208 / EN 12226-2

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

Features:·Reliable Three “O”-Rings Sealing,On-Line Changing
                ·Body without Gate Slot, no Impurities Filling up
                ·Zero Leakage under 1.5 Times Nominal Pressure or 0.02mpa


Design Standard:BS 5150 / EN 1171 / AWWA C509 
Face to Face Dimensions:ISO 5752  / EN558-1 / ASME B16.10
Flange End Dimension :EN1092-2 / ASME 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