Material: Galvanized Steel Sheet
Size( W×H): According to air duct sizes
Features:
Usually it is open, when on fire, smoke ( temperature) sensors output electric signal (DC24V) through control centre, and the electromotor in the actuator acts, damper is automatically closed, outputs the close electric signal.
Direct current elctromotor drives to reset after damper acting.
Damper can be manually closed and reset, or be closed when fuse number 70℃.
The damper has six gears of regulation air volume.
Having the certification of ISO9001:2008
Direct current elctromotor drives to reset after damper acting.
Damper can be manually closed and reset, or be closed when fuse number 70℃.
The damper has six gears of regulation air volume.
Having the certification of ISO9001:2008
