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 flap and valve seat is made of iron-based alloy or stellite cobalt-based cemented carbide, which is wear-resistant, high-temperature resistant, corrosion-resistant, good anti-scratch performance, and has a long service life.

3、A variety of piping flange standards and flange sealing surface type can be used to meet various engineering needs and user requirements.

4, the valve body material variety, gasket according to the actual working conditions or user requirements reasonable selection, can be applied to a variety of pressures, temperatures and media conditions.

5、The valve flap rotates around the pin outside the valve seat to reduce the violent impact when closing.

6、The pin and valve flap connection adopts internal structure, there is no external leakage point, which is more reliable.