Smoke exhaust fire damper

1、Under normal circumstances, it is in a normally closed state. In case of fire, the temperature sensor sends an electrical signal (DC24V) through the control center, and the actuator is energized to act, automatically opening the valve and outputting an opening signal. When the smoke temperature reaches 280°C, the valve closes again.

2、The valve can be opened manually.

3、Output a passive electrical signal.

4、Reset manually after the valve operates.