The basic principle of the plug valve is mainly composed of valve body, plug body, sleeve, valve stem, valve bonnet, grease nipple, handle (or other driving device) and other parts.
The main function of the plug valve is to cut off and connect the medium and use it for diversion, and sometimes it can also be used for throttling. Under normal circumstances, the sealing surfaces of the plug valve are always tightly fitted during the opening or closing process, and when fully open, it can completely prevent contact with the flowing medium, so it can also be used for media with suspended particles. The plug valve can be used in a multi-channel structure and can be made into a two-way, three-way, four-way or multi-way structure.
