Where is the foot valve located on a centrifugal pump?

The foot valve is situated at the bottom end of the suction pipe in a centrifugal pump system. This location is crucial because the foot valve serves to maintain the prime of the pump and allows for water to enter the suction line while preventing backflow when the pump is turned off. Its design typically incorporates a check valve, which opens for water to flow into the pump when it is running and closes to prevent the water from draining back into the source when the pump is stopped. This function is essential in ensuring that the pump does not lose its prime, thereby maintaining its operational efficiency. Proper installation of the foot valve is vital for effective suction lift and optimal performance of the centrifugal pump.