The ASTM A216 WCB sluice valve is a valve used to control the flow of fluid in a pipe. It is manufactured according to the American Society for Testing Materials (ASTM) A216 standard and is made of WCB carbon steel castings. The characteristic of this valve is that the gate mechanism can be opened or closed to control the passage of fluid. The valve body and internal components, such as gate and seat, are made of WCB carbon steel, which is widely used in the manufacture of industrial valves due to its excellent strength and toughness.