Product main features：
1、High-performance regulating cut-off type. It can be used as regulating valve and cut-off valve.
2、Excellent gas and liquid isolation function and flow control characteristics.
3、Small opening and closing friction at the valve seat, no stagnation, long service life.
4, easy to replace and adjust the sealing performance of the sealing ring
5、Low operating torque and reliable torque shut-off.
6、According to customer demand, it can be designed into fireproof structure.

Structural features：
Due to the double eccentric structure, the butterfly plate is gradually detached from the valve seat during the valve opening process, which reduces the friction between sealing surfaces, thus prolonging the service life. The valve seat adopts lip structure design, and the material is made of PTFE, RPTFE or ultra-high molecular weight polyethylene, so that no matter what the direction of fluid is, the valve seat can always be restored to the original position after deformation to ensure the sealing.