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Check valve refers to the valve that automatically opens and closes the disc depending on the flow of the medium itself to prevent medium backflow, also known as check valve, one-way valve, counterflow valve, or back pressure valve. Check valve is an automatic valve. Its main function is to prevent medium backflow, reverse pump and drive motor, and release of container medium. Check valves can be divided into swing check valves (rotating according to the center of gravity) and lift check valves (moving along the axis). By choosing different structural forms and materials, it can be widely used in water, steam, oil, acid, alkali and other media.
Product characteristics
The sealing pair of flange swing check valve is advanced and reasonable. The sealing surface of disc and seat is made of iron-based alloy or Stellite Co-based cemented carbide surfacing.
Wear resistance, high temperature resistance, corrosion resistance, abrasion resistance, long service life.
The flow passage is smooth, the fluid resistance is small, the valve disc closes quickly, and the water hammer pressure is small.
Horizontal or vertical pipes can be used, easy to install.
