Butterfly Check Valve
Product Description KOSEN Butterfly Check Valves is a double offset , triple offset butterfly type check valve. It is equipped with a buffer to slow down the closing speed to make partial medium enter the system in order to greatly eliminate the backflow slamming and the destructive...
Butterfly check valve is mainly used for industrial water supply, sewage treatment plant outlet of the pump to prevent the pipe network medium countercurrent. Automatically eliminate destructive water hammer, so as to ensure that pumps and pipelines are not damaged. It is the best product for industrial water and urban sewage discharge.
Normal Size Range: DN200- DN1400
Normal Pressure Rating: PN10-PN25
Material: GG25, GG40, WCB
Temperature Range: -29°C~425°C
Design and Manufacture: GB12236
Face to face(end to end): GB12221
Flanged connection: JB/T79-1994
Test and inspection: JB/T9092-1999