This damper is installed in the pipe of ventilation system and air-conditioning system that need smoke prevention and fire prevention. At ordinary times, it is normal open, in fire situation, closed to prevent fire and smoke.
1. Temperature control: temperature sensor works to make damper closed
2. Electronic Control: Fire Service Center electrical signal, DC24V, makes the electromagnet work to close damper automatically
3. Close or reset manually
4. When closed, it outputs one group of active contact signal and one group of passive contact signal
Fire smoke damper actuators are designed specifically for fire and smoke application during normal operation, the smoke vent actuator motorized the damper. In the event of a fire emergency, the fire damper actuator springs back to its original position when there is a power ...
It is usually installed in the pipe of exhaust system or exhaust vent or entrance of exhaust fan, has the double functions of exhaust damper and fire damper. At ordinary time, it is normal close, in fire situation, open automatically to exhaust smoke, when the exhaust airflow ...
This damper is installed in the pipe of ventilation system and air-conditioning system which need smoke prevention and fire prevention, and in the pipe of exhaust system. 1. Operation device is consisted of electric actuator with spring reset, and temperature controlled switch. ...