One Way Check Valvewater supply line one way flow check valve Design&Manufacture:API 600,BS1868Face to face:ASME B16.10,JIS B2002End flange:ASME B16.5Butt weld weld:ASME B16.25Inspection&Test:API 598Size:2''-24''Pressure:Class150lb,PN10,PN16Suitable medium:water Hot Tags: one way check valve, China, suppliers, manufacturers, factory