Ductile Iron Body CF8M Disc Dual Plate Check Valve

Check valve, known as one-way valve, check valve, back pressure valve, this type of valve is automatically opened and closed by the force generated by the flow of the medium itself in the pipeline, and belongs to an automatic valve. The function of the check valve is to prevent the backflow of the medium, the reverse rotation of the pump and its driving motor, and the discharge of the medium in the container.

Dual disc check valve also called wafer type butterfly check valve. This kind of check vavle has good non-return performance, safety and reliability, small flow resistance coefficient.  Double-door check valve is a very common type of check valve. By choosing different materials, the wafer check valve can be applied to water, steam, oil in petrochemical, metallurgy, electric power, light industry, food and other industries. , nitric acid, acetic acid, strong oxidizing medium and urea and other media.

The check valve adopts the wafer type, the butterfly plate is two semicircles, and the spring is used for forced reset. The sealing surface can be welded with wear-resistant material or lined with rubber. The butterfly plate, when the flow is reversed, closes the valve by spring force and medium pressure. This kind of butterfly check valve is mostly of wafer structure, small in size, light in weight, reliable in sealing, and can be installed in horizontal pipelines and vertical pipelines.