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The working principle of electrothermal actuator

Author: admin / 2022-09-08

Electrothermal actuator consists of three parts: temperature controller, valve actuator and valve. The thermostat is installed on the inner wall of the room, and is connected to the electric heating actuator with a cable. Generally, a 100cm long cable is used to connect the actuator to the selected control point (thermostat, programmer, timer or other remote control). device).

The actuator is attached to the valve with a nut. When the indoor temperature reaches the temperature set by the temperature controller, the positive thermistor in the electric heating actuator starts to work, heating the thermal expansion device to close the valve, otherwise, the indoor temperature decreases, the thermostat is disconnected, the actuator cools down, and the expansion device shrinks , the valve opens.

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