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Application of plug valve | non lubricated plug valve

  • Application of plug valve | non lubricated plug valve


    Since the closing part of the plug valve is a plunger-shaped rotary valve, the passage on the valve plug is connected or separated from the passage on the valve body by rotating 90°, so as to achieve the function of opening and closing the valve, so the plug valve is most suitable for quick opening and closing. In addition, due to the structural characteristics of the plug valve, it is mainly used for cutting and connecting the medium and distributing and changing the flow direction of the medium; but according to the nature of use and the erosion resistance of the sealing surface, sometimes It can be used in throttling occasions; in addition, because the movement between the sealing surfaces of the plug valve has a wiping effect, and it can completely prevent contact with the flowing medium when it is fully opened, it can usually also be used for medium with suspended particles; plug Another important feature of the valve is that it is easy to adapt to the multi-channel structure, so that one valve can obtain two, three, or even four different flow channels, which can simplify the design of the piping system, replace several valves with one valve, reduce The amount of valve and some connection accessories required in the equipment.
    Plug valves are widely used in oil and gas fields' extraction, transportation and refining equipment; they are also widely used in petrochemical, chemical, natural gas, liquefied petroleum gas, gas, HVAC and food industry systems.
    Non-lubricated plug valves with bushings are used in petrochemical, chemical and other industries, especially in media where lubricants are not allowed.
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