What is the name of the valve installed at the end of the suction pipe on a centrifugal pump?

The valve installed at the end of the suction pipe on a centrifugal pump is known as a foot valve. This valve serves a critical function by preventing the backflow of water when the pump is not in operation, ensuring that the pump remains primed. It is typically submerged in the source of water and allows fluid to flow into the pump while blocking any reverse flow that could occur otherwise.

Foot valves are especially important in centrifugal pump applications to maintain a consistent and reliable water supply, which helps in achieving optimal pump performance. Their design typically includes a screen or strainer to prevent debris from entering the pump, which can help prolong the life and efficiency of the system.

Other types of valves, like shut-off valves, check valves, and ball valves, serve distinct functions and are not typically used at the end of the suction pipe in this specific capacity. A shut-off valve, for example, is used to isolate sections of the pipeline, while a check valve is designed to allow flow in only one direction, but it is not specifically positioned at the end of the suction pipe where maintaining the pumping prime is crucial. Ball valves are often used for precise flow control and isolation but do not function as a foot valve in maintaining the water column in a suction