※ Product Details

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

Flange lift check valves (divided into horizontal type H41 and vertical type H42) have advanced and reasonable sealing pairs. The sealing surfaces of discs and seats are made of iron-based alloys or Stellite Co-based cemented carbides. The valve plates can also be covered with rubber. Type H41 is suitable for installation on horizontal pipeline and Type H42 is suitable for installation on vertical pipeline. It has good wear resistance, high temperature resistance, corrosion resistance, abrasion resistance and long service life.