What Is A Plug Valve?

The plug valve is a closing member or a plunger-shaped rotary valve. By rotating 90 degrees, the channel port on the valve plug communicates with or separates from the channel port on the valve body to realize opening or closing.
The shape of its valve plug can be cylindrical or conical. In cylindrical plugs, the passages are generally rectangular; in tapered plugs, the passages are trapezoidal. These shapes make the structure of the plug valve light. It is most suitable for cutting and connecting media and shunting, but it can also be used for throttling depending on the nature of the application and the erosion resistance of the sealing surface.