Three-way Plug Valve
Three-way plug valve is a commonly used valve type, usually used to control the flow direction and flow rate of fluids between different pipes. It consists of a rotating valve core and a fixed valve seat. The fluid passage is controlled by rotating the valve core. Three-way plug valves usually have three inlets and one outlet, which can mix or divide the fluid between the two inlets, or switch the fluid from one inlet to another.
Overview
Working Principle
The working principle of the three-way plug valve is mainly to control the flow direction and flow rate of the medium by rotating the valve core.
There is an outlet at the bottom of the three-way plug valve. When the internal valve core is in different positions, the outlet will change accordingly. For example, when the valve core is in the lower part, the left and right inlets are connected, but when the valve core is in the upper part, the right outlet is blocked, and only the left and lower ports are connected. This design allows the three-way plug valve to be used in control systems that require fluid proportioning, reducing installation costs and installation space.
Three-way plug valves can also be used in bypass control systems, such as using a diverting three-way valve before the heat exchanger and a converging three-way valve after the heat exchanger.
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