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

Typical installation diagram