WCB flange swing check valve

The function of swing check valve is to control the one-way flow direction of medium in the pipeline, which is used to prevent the medium backflow in the pipeline. Check valve belongs to automatic valve type, and the opening and closing parts are opened or closed by the force of flow medium. Check valve is only used on the pipeline with one-way flow of medium, to prevent the medium from flowing back to prevent accidents. It is mainly used in pipelines of petroleum, chemical industry, pharmaceutical, chemical fertilizer, electric power, etc.

This check valve is used for preventing the back-going of medium in pipelines and equipments, and the pressure of medium will bring the result of opening and closing automatically.When the medium is back-going, valve disc will automaticaly closed to avoid accidents.