... one kind of ultrathin check valve,its advantage such as simple structure,good appearance, ... , ANSI B 16.10, ANSI B 16.5 This valve is featured by original structure, large circulating area, little ... for eliminating water hammer according to different occasions, this valve is mainly used in water supply and drainage pipeline ... 10, ANSI B 16.5Applicable Medium: Oil, water, etc. Wafer swing check valve