Pneumatic Plug Valve Introduction: Pneumatic Plug Valve is a plug with a through hole as the opening and closing pieces, through the plug body and stem rotation to achieve the valve opening and closing action. Plug valve structure is simple, quick opening and closing, fluid resistance is small, in recent years as the history of the first people to adopt one of the valves, not only no longer replaced by the valve and other types of valves, but the market presents an increasingly hot trend. The characteristics of the pneumatic plug valve: 1. The valve inlet and outlet end of the window is designed to double channel groove seal ring structure, the tap in the rotation process, the sealing pressure between the sealing pair is gradually changing pressure until it reaches the fully open or fully closed position When sufficient seal pressure is generated, the seal pair achieves zero leakage. 2. Double groove seal ring PTFE liner can be made in the valve body does not produce a stable displacement, but also absorb the temperature changes caused by the liner caused by micro deformation, while the bushing and cock strong wipe effect, and Improve the service life of the sealing surface. 3. The whole sealing process can be approximated as the pressure in the pipeline has nothing to do. 4. PTFE bushing, according to the use of temperature and working medium with different materials filler, good lubrication, long life.
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