Silent check valve used in line with the outline of the mechanical design of water to obtain a better streamlined water, the internal body with a diversion designed to ensure minimal pressure loss. Silent check valves installed at the pump outlet, back in the water off before the first fast, to avoid water hammer, water hammer-type impact sound and destruction in order to achieve quiet, protective equipment to prevent backflow, and the purpose. Widely used in water supply and drainage, fire, HVAC, industrial and other systems. 


 Second, the main technical parameters of silent check valve 

 Nominal pressure: 1.0 ~ 2.5MPa 

 Nominal by: 300 ~ 1200mm 

 Suitable medium: water, oil, water, sewage 

 Suitable temperature: 0 ~ 80 ℃ 

 Flange Standard: GB / T 17241.6 GB / T 9113 

 Test Standard: GB / T 13927 AP 1598