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Pressure/Vacuum valve (Basical structure)


 

 

The dimension parameter of the CF-ISO high-velocity relief valve

No.

DN

D1

D2

D3

L

H

Assembly hole

8

250

320

350

395

460

730

12x∮22

7

200

258

295

340

455

730

8x∮18

6

150

202

225

265

385

670

8x∮18

5

125

178

200

240

380

545

8x∮18

4

100

148

170

210

285

485

4x∮18

3

80

128

150

180

285

460

4x∮18

2

65

110

130

160

255

410

4x∮14

1

50

90

110

140

255

410

4x∮14


 Remarks:flange executive standards:GB2501-89,DN50-DN150, nominal pressure is 0.6Mpa; DN200、DN250, nominal pressure is 1.6Mpa(is equal to ISO2084-1974、ISO2441-1975)。

 

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