1, lining F4 \ F46, according to the use of temperature and working medium using different materials filler, good lubrication, long life.

2, fluorine lined plug valve valve body inlet and outlet window design for the double groove sealing ring structure, plug in the process of rotation, the sealing pressure between the sealing vice gradually change until it reaches the fully open or fully closed position, produce enough sealing pressure, sealing vice to achieve zero leakage.

3、Double groove sealing ring that can make PTFE liner solid in the valve body does not produce displacement, but also can absorb the liner due to temperature changes caused by deformation of a small amount of liner, and at the same time the liner and the plug to produce a strong wiping effect between the liner and improve the service life of the sealing surface.

4, fluorine lined plug valve sealing process can be approximated that has nothing to do with the pressure in the pipeline.