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hzr414ad 
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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 Application: Petroleum industry, Shipbuilding industry, Urban water supply and drainage pipeline, etc. 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 表面处理： 车身内外环氧树脂涂层海洋止回阀 网站：http：//www.apc-firevalve.com/check-valve/ |
