With the hole plug body as the opening and closing of the valve.Plug with the valve rod rotation, in order to realize the opening and closing action.Small without filler plug valve is also known as "".Plug valve plug body more for the cone (cylinder), cooperate with the taper hole surface of the valve body of seal.Plug valve is to use one of the first valve, simple structure, switch quickly, small fluid resistance.Ordinary cock on finishing the direct contact between the metal plug body and the body to seal, so the sealing is poorer, opening and closing force is big, easy to wear and tear, usually can only be used for low (less than 1 million mpa) and small (less than 100 mm).

Details of pneumatic plug valves
    PSRX643F/W air cock with the hole plug body as open-close part, through the rotation of the plug body and stem realize on-off movement.ball valve.Plug valve has simple structure, opening and closing rapidly, fluid resistance small, in recent years, as one of the first people to adopt valve were in history, not only didn't replaced by ball valve and other types of valves, but the trend of the market is more and more popular.
    1. Import and export side window design for double groove body sealing ring structure, plug in the process of rotation, the seal between the sealing pressure ratio in the gradual change, until she reached full open or close position, generate enough sealing pressure, seal achieve zero leakage.
    2. Double dao grooved ring that can make the PTFE liner firmly in the body does not produce displacement, and can absorb trace deformation caused by temperature change bushing, at the same time between liner and cock powerful cleaning effect, and improve the service life of the sealing surface.
    3. Seal the whole process can be approximately that has nothing to do with the pressure in the pipeline.

    4. The PTFE liner inside, according to the materials used in different temperature and medium filling, good lubrication and long life.

Keywords:butterfly valve ,knife gate valve,ball valve,globe valve,slurry gate valve