A Three-Way Plug Valve is an industrial valve designed with three ports for diversion or mixing applications. It features a cylindrical or conically tapered plug that rotates within the valve body to control the flow of fluid. The plug has one or more hollow passageways that align with the ports when the valve is open, allowing fluid to flow through. The three ports of the valve can be arranged as two inlets and one outlet, or one inlet and two outlets, depending on the specific application. This design provides flexibility for directing or combining fluid flows and is valued for its simplicity and cost-effectiveness.