Face-to-Face dimension conforms to ISO 5752 / BS EN558 serial 14.
Epoxy fusion coating.
Working Pressure
PN10 / PN16 / PN25
Testing Pressure
Shell: 1.5 times rated pressure,
Seat: 1.1 times rated pressure.
Working Temperature
-10°C to 80°C (NBR)
-10°C to 120°C (EPDM)
Suitable Media
Water, sewage etc.
Shell and seal tests for each valve is done and recorded before package to make sure the product quality. The test media is water in room conditions.
Part
Material
Body
Ductile Iron/Carbon steel
Disc
Ductile Iron / Stainless Steel
Spring
Stainless Steel
Shaft
Stainless Steel
Seat Ring
NBR / EPDM
Cylinder/Piston
Stainless steel
If need the drawing details, please feel free to contact.
This check valve is used for preventing the back-going of medium in pipelines and equipments, and the pressure of medium will bring the result of opening and closing automatically.When the medium is back-going, valve disc will automaticaly closed to avoid accidents.