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★ Export more than 60 countries, widely used in power stations, thermal power station, water works, water works, sewage disposal plants, iron and steel companies and other industries.
This check valve is installed on the pipeline of pump exit for preventing adverse flow.
This series product has two discs, the axes is set diametrically on the pipeline, opening under the pressure if medium, closing by the medium returning and the spring installed on the axes. After closing, the spring push down the discs, sealing is perfect. The length is short, only 1/5 to 1/6 of check valve, light in weight, it is easy to install and dismantle.
Usually the valve is wafer type, but also can be made into double flange type.
Suitable medium: Water, sea water, steam, sewage,etc.
Type of sealing : soft sealing.
Type of control : automatic.
Material: grey cast iron, ductile cast iron, alloy cast iron, carbon steel ,stainless steel, alloy steel.
Standard: GB, BS, ASME, JIS, DIN, EN, ISO and other country, also can be produced according to user’s requirements.