The rubber disc check valve is mainly composed of three main parts: valve body, valve cover and rubber disc. 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 can be opened and closed for 1 million times. The valve adopts the full flow area design, with the characteristics of small head loss, not easy to accumulate sundries and easy maintenance.

The valve is mainly applicable to the water supply and drainage system and can be installed at the water outlet of the pump to prevent backflow and water hammer from damaging the pump. The valve can also be installed on the bypass pipe of the water inlet and outlet pipe of the reservoir to prevent the pool water from flowing back into the water supply system.