The rubber flap check valve, also known as the rubber flap check valve, is mainly composed of three main parts: the valve body, the valve cover and the valve flap. Made, the valve flap switch life can reach 1 million times. The valve adopts the whole basin design, which has the characteristics of small head loss, not easy to pile up various sundries, and easy maintenance. 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 from damaging the pump. The valve can also be installed on the bypass pipe of the water inlet and outlet pipes of the reservoir to prevent the backflow of pool water into the water supply system.
This valve is mainly used at the outlet of pipeline pumps in water supply and drainage systems, petrochemical, metallurgy and other industrial sectors to prevent backflow of media.
The valve can also be installed on the bypass pipe of the inlet and outlet water pipes of the reservoir to prevent the backflow of pool water from damaging the pump. Because the valve disc of this product is designed inclined, the closing time is short, and the pressure of water hammer can be reduced.
The valve disc is made of steel plate, EPDM and nylon cloth pressed at high temperature, which is resistant to erosion and has good sealing performance. The product structure is simple and the maintenance is very convenient.
①The sealing disc of this product is designed inclined, so the closing and opening time is short;
The valve disc is made of steel plate, EPDM and nylon cloth through high temperature injection and vulcanization, with good corrosion resistance and wear resistance.
③There is a raised sealing ring to ensure low pressure sealing.
②The pin shaft is made of high-end stainless steel to prolong the service life.
④The sealing surface of the valve body is all processed by special machine, so the sealing surface is smooth and flat, and the product has better sealing performance after special machine processing;
⑤ The design of check valve and the improvement of mold making process are not affected by the technical limitations of casting workers and human factors, so its quality is stable;
3. Use bolts to locate the middle head gasket, which effectively ensures the sealing performance of the middle head gasket, and ensures that the assembly is better and not to offset.
1. The valve cover has an additional inclined port, which can better press the valve disc
2. Prevent the valve disc from rotating around the positioning pin, ensure that the valve disc has an initial pressure, and avoid the plastic seal on the surface of the valve body and the valve cover from falling off