DRF series Electric Thermal Valve

What does DRF Series do?

DRF electric thermal valve is available for controlling central air conditioning and water heating system's opening and closing to control the room temperature. The control valve depends on the paraffin wax propeller drive the spring to reset.The electric thermal valve is normally closed when it doesn't work.If it needs to work, the thermostat will provide a signal of opening,then the electric thermal valve will gets the power to work. Opening the valve,the cold and hot water will come into the fan coil to provide the cold or hot air. when the set temperature is achieved,the thermostat will cut off the electric thermal valve's power,then the reset spring can close the valve to stop the water which flow into the coil. So the room temperature is always maintained within the set range by the valve's opening and closing.