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The smoke exhaust damper is generally installed on the air duct of the smoke exhaust system. It is normally closed. When a fire occurs, the smoke detector sends a fire alarm signal. The control center sends an electric signal to the solenoid on the damper to open the damper quickly, or manually open the damper quickly for smoke exhaust.
Application :
Fire dampers are commonly used in air conditioning, ventilation pipe system, used to adjust the tube of the air flow, can also be used for mixing of fresh air and return air conditioning.
Fire dampers are usually installed on ventilation ducts. The air door is normally open and will close when the temperature reaches 70 ° C.
Smoke exhaust fire dampers are generally installed on the air ducts of smoke exhaust systems. It is usually open. When a fire occurs, the smoke detector will emit a fire alarm signal. The control center uses DC24V signal for smoke exhaust. When the flue temperature reaches 280 ° C, it will automatically shut down. There are also self hanging louvers, which open the fan in case of a fire and open the louvers with the suction force generated by the fan.
