The Check Valve is an automatic shut-off valve. Under pressure and flow, the closure mechanism opens allowing the media to flow freely. When the flow and pressure stops, the closure mechanism returns automatically to the closed position, preventing the media from returning upstream. The most common installation is at the pump. A Check Valve may be installed on the suction side of the pump to maintain the pump's prime in the event of a pump shutdown. A check valve will be used commonly on the discharge of the pump to prevent backflow from the downstream system, when the pump shuts off.

Check Valves are used to prevent contaminated media in branches from flowing back into the main trunk line. The most common example is the use of backflow-prevention devices installed on any connection to a city water main. The backflow prevention device, a special form of check valve, prevents possibly contaminated water at a facility from flowing into the city water system when there is a sudden loss of water pressure in the main utility line.

There are several other applications for check valves, but the purpose is always the same. While, there are several design of check valve, we manufacture Sawing Check Valve, Lift Check Valve, Dual Plate Check Valve & Multi Door Check Valve.

Type of Valves: Check Valve.
Operation: Swing Check/Dual Plate.

Cast Iron Valve Range: 50 mm NB to 1200 mm NB
Cast Steel Valve Range: 50 MM NB to 300 mm NB
** Multidoor Valves are also available **