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DRVZ silence check valve

DRVZ silence check valve

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Detail Introduction

Product introduction 
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

Material

Body and diversion shuttle:
disc and shaft:
spring
ductile cast iron seat,bearing,
Al-bronze or Cr-stainless steel
stainless steel

Main dimensions unit: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
WARM PROMPT:“DRVZ silence check valve”All text, data and pictures are for reference only.
If you need to match with the physical performance parameters, structural size parameters and other details, please call us to obtain.
Phone:+86-138-184-91905
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