Function: Three-way ball valves are used to switch over and mix/divide the flow of normal or non-corrosive liquid, gas or powdery mediums. Upon opening and closing, the smooth flow channel is made, thus removing less leakage and reducing the operating torque and maintenance costs. By rotating the ball, the flow direction is either to the right, left, or T-shaped, and the flow is opened to two different channels or closed. The valve can be operated manually or by operating an actuator.