PN10 PN16 Flanged Swing Check Valve QT400 Non Return Valve For Sewage Pipe

Rubber seat check valve QT400 sewage water gas oil PN16 PN10 ductile iron

The rubber flap check valve is mainly composed of three main parts: the valve body, the valve cover and the rubber flap. Among them, the rubber flap is made of steel plate, steel rod and reinforced nylon cloth as the backing, and the outer layer is covered with rubber. The service life of the valve flap can reach 1 million times. The valve adopts the design of full flow area, which has the characteristics of small head loss, not easy to accumulate chores, and easy maintenance. This valve is mainly suitable for water supply and drainage system and can be installed at the water outlet to prevent backflow and water hammer from damaging the pump. The valve can also be installed on the bypass pipe of the inlet and outlet pipes of the reservoir to prevent the backflow of pool water into the water supply system.