Oversized silence check valve is flow-line designed according to hydrodynamics and the pressure loss is very little.The valve is installed at the outlet of the pump,and it closes before the fluid flow backward,so prevent water-hammering,water-hitting and destructive impact.So the valve can run quietly in the system.It is widely used in feeding/draining system,fire protection,heat supplying system and industry.
Main technical parameters
Nominal pressure: 1.0-2.5MPa
Nominal diameter: 300-1200mm
Flanged end: GB/T17241.6 GB9113
Inspection and test: GB/T 13927 API 598
Typical installation diagram