1. The product is designed and manufactured according to the national standard GB/T 12236, with reasonable structure, reliable sealing and excellent performance.

2. The sealing surface of valve disc and valve seat is made of iron alloy or Stellite cobalt-based hard alloy, which is wear-resistant, high temperature resistant, corrosion resistant, abrasion resistance and long service life.

3. Various piping flange standards and flange sealing surface types can be used to meet various engineering needs and user requirements.

4. The valve body material variety is complete, gasket can be selected according to the actual working conditions or user requirements, can be suitable for a variety of pressure, temperature and medium conditions.

5. Disc rotates around the pin outside seat to reduce violent impact during closing.

6. The pin shaft and valve disc are connected with built-in structure, there is no leakage point, more reliable use.