Dual plate wafer Non-return check valve
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Dual plate wafer Non-return check valve
一、Technical specification:
Design:wafer type double plate check valve with spring
End connection: wafer end
Medium: Water,
Temperature range: -20℃ to 120℃.
Design standard: API 6D
Flange standard: ANSI 125 , ANSI 150, DIN PN10, PN16, PN25 or customer need
Test standard: API 598
Function: To avoid the fulid flow back
二、Application: Petroleum industry, Shipbuilding industry, Urban water supply and drainage pipeline, etc.
三、Material
Body: Ductile cast iron, cast iron,
Disc: SS 304, SS316, Ductile cast iron, Aluminum-bronze
Stem: SS316, SS410, SS416, SS304, SS 17-4PH
Seat: NBR, EPDM, VITON, high temperature EPDM, Food grade EPDM
Spring: SS304, SS316
四、Surface treatment: Epoxy resin coating both inside and outside the body
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