1,The selection of materials, in line with domestic and foreign standards, widely used in petroleum, chemical, pharmaceutical, fertilizer, power industry and other departments of the pipeline, to prevent the backflow of the medium.

2,The sealing pair s advanced and reasonable, and the sealing surface of the valve stem and seat is made of iron based alloy or Stellite cobalt-based carbide surfacing. Good wear resistance, high temperature resistance, corrosion resistance, abrasion resistance, long service life.

3,Can use a variety of pipe flange standard sealing form to meet various engineering needs and user requirements.

4. Complete variety of valve body materials. Gaskets can be reasonably selected according to actual working conditions or user requirements. It can be applied to various pressure, temperature and medium conditions.

5,The valve disc rotates around the pin outside the seat to reduce the violent impact when closed. 6, the pin and the valve disc are connected by built-in structure, there is no leakage point, the use of more reliable. Swing check valve.