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Our T*7 electric ball valve actuator is an innovative *0° quarter-turn actuator for heating/cooling system automation. There is no motor used inside this T*7 actuator. Instead, we use two of our thermo-electric actuators. The wax inside the thermo-electric actuators expands as PTC heats up and pushes the piston outwards. Then the thermo-electric actuator drives the gear to rotate to open or close the valve. Check this post to learn more about the working principles of our wax-driven products.

One thermo-electric actuator is responsible for clockwise rotation and the other is responsible for counter-clockwise rotation. The linear motion of the thermo-electric actuators is converted into rotary motion through the gear structure and then drives the ball valve to open or close.