DRVZ Silence Check Valve

We are a professional valve manufacturer with many years experience, good quality and best price

DRVZ Silence Check Valve

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 discs 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 fluids and water-hammering's damage to the pump. Main technical parameters Nominal pressure: 1.0-2.5MPaNominal diameter: 50-350mmService:water,oils,sea water,sewage Working temperature:0-80Flanged end: GB/T17241.6 GB9113Inspection 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

DRVZ Silence Check Valve