Perfect pumps designs and providesmanufactures and offers ci frictionless foot valves. Various general characteristics of these foot valves include:these foot valves are placed at the inlet of the suction pipe of the centrifugal pumps to prevent the suction pipe from emptying while the pumps are at rest. Consequently wwhen the pumps restart, the suction pipeline is not reprimed and thereby helps instant starting of the pumps. The pumps also prevent the entrance of detrimental/foreign materials into the pumps. These valves provide some outstanding features include: frictional resistance offered by the foot valves is almost negligible, friction factor k is within 0.80, strictly conforming to the requirements laid down under is:cm/l-10805-88, low head loss in the foot valves provides more head available for utilisation, thereby saving power and providing extra output with the same power input, available sizes are 50 mm, 65 mm, 80 mm and 100 mm. Following are the constructional construction features of these foot valves which include: valves made of closed grain cast iron, provided with screwed connection for piping, bucket shape strainer having cored slots with adequate flow area, specially designed rubber flap to give sealing against water leakage and two coats of antirust black paint, etc. Special features include: frictional resistance offered by the foot valves is almost negligible, friction factor k is within 0.80, strictly conforming to the requirements laid down under is:cm/l-10805-88, low head loss in the foot valves provides more head available for utilisation, thereby saving power and providing extra output with the same power input, available sizes are 50 mm, 65 mm, 80 mm and 100 mm.
