Rotary check valve is an effective one-way check valve that prevents backflow when water is cut off. Due to its unique design and construction, it will not affect the service life of the water pump by causing a cut-off area. Therefore, rotary check valve, also known as "large diameter full basin" check valve, is a universal valve that is preferred for fire and municipal pipelines.
The swing check valve is made of ductile iron material, which has the advantages of tensile and crack resistance. The sealing surface has two sealing forms: brass welding or EPDM rubber sealing. Suitable for different occasions in pipeline networks, the valve body is coated with epoxy resin to ensure that water quality and service life are affected by fluid corrosion. The valve plate guide shaft is made of 304 stainless steel to effectively prevent rotation failure caused by fluid corrosion, which may result in damage or destruction of water pumps and other facilities, leading to unexpected secondary serious problems.