Rubber flap valve consists of body, bonnet and rubber flap composed of three main parts. Where the rubber flap from steel, steel bars and reinforced nylon cloth substrate, the outer rubber coated, braided valve switch life of up to one million times. The valve with full flow area design, with head loss is small, easy accumulation of debris, easy maintenance and other special
Sex. The valve is mainly applied to the drainage system can be installed on the pump at the outlet to prevent backflow and water hammer damage to the pump. The valve can also be installed on the tank and out of water bypass pipe to prevent water back to the water supply system.