DRVZ Silence Check Valve|China

Wenzhou Nanlong Import&Export Trading CO.,LTD.(China)|DRVZ Silence Check Valve
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DRVZ Silence Check Valve


DRVZ Silence Check Valve

Description :



Silence check valve consists of valve body,seat,diversion shuttle,disc,bearing and spring etc..The bore is flow-line designed so pressure loss is very little.The disc’s stroke is very short and when stop the pump the valve can close quickly and prevent the great noise from water-hammering so the valve can close quietly without any noise .It is widely used in feeding/draining system,fire protection and heat supplying system,and it is installed at the outlet of the pump to prevent backward fluid’s and water-hammering’s damage to the pump.


Main technical parameters


Nominal pressure: 1.0-2.5MPa
Nominal diameter: 50-350mm
Service:water,oils,sea water,sewage
Working temperature:0-80
Flanged end: GB/T17241.6 GB9113
Inspection and test: GB/T 13927 API 598


Typical installation diagram

Material

Body and diversion shuttle:

disc and shaft:

spring

ductile cast iron seat,bearing,

Al-bronze or Cr-stainless steel

stainless steel


Main dimensionsunit:mm

DN

40

50

65

80

100

125

150

200

250

300

350

L

110

120

150

180

229

254

267

292

330

356

381


   

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DRVZ Silence Check Valve|Valve China)

DRVZ Silence Check Valve|China