purpose

Applied to the ducts of ventilation and air conditioning systems with smoke and fire prevention, in case of a fire, the smoke detector outputs a DC24V electrical signal or the 70 ℃ temperature sensor operates to tightly shut off the smoke, effectively sealing off smoke leakage and preventing the spread of fire.

function

·Normally open, when the airflow temperature reaches 70 ℃, the fuse will activate to automatically close the valve.

·The valve can be closed through a DC24V power supply.

·Manually turn on or reset- Output valve closing signal, which can be interlocked with other devices.