What is a foot valve?

A foot valve is a type of check valve that is typically installed at the bottom of a vertical pipe or at the end of a suction hose to prevent backflow of water or other fluids. It allows fluid to flow in only one direction, preventing the pump from losing prime when it is turned off.

Foot valves are commonly used in irrigation systems, water wells, and other applications where maintaining a prime in the pump is crucial. They are usually made of materials such as PVC, brass, or stainless steel to withstand harsh environments and provide long-lasting performance.

Foot valves often have a strainer or screen at the inlet to prevent debris from entering the pump and causing damage. They also have a sealing mechanism, such as a rubber or plastic gasket, to ensure a tight seal when the pump is turned off.

Overall, foot valves play a critical role in maintaining the efficiency and performance of pumping systems by preventing backflow and ensuring a consistent flow of fluid.