Features: Butterfly type Check Valve 蝶形止回阀
Butterfly type Check Valve range:
Production Size:1 1/2”-16” DN40-DN800mm
Pressure range:PN10,PN16
Butterfly type Check Valve Standard:
Design Standard:GB
Face to Face:GB
Flange Standard: GB/EN1092/ANSI/DIN3202/BS4504
Testing Standard:GB/T 13927
Butterfly type Check Valve main material of parts:
Body:Ductile Iron
Shaft:SS304
Disc: Ductile Iron+NBR
Spring:SS304
Application:
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.