Smoke exhaust fire dampers are fire protection components commonly installed on the ducts of mechanical smoke exhaust systems, remaining open during normal operation and activated to exhaust smoke during a fire.

Tobacco; Closes when the flue gas temperature in the exhaust pipe reaches 280 degrees, and meets the requirements for smoke leakage and fire resistance integrity within a certain time, acting as a smoke barrier

Fire-retardant function. Main materials: carbon steel, galvanized plate, stainless steel. In case of fire, ensures reliable closure, utilizing an alcohol lamp or other flame source to prevent

Fire valve temperature sensor melts; after the temperature sensor activates, the fire damper should automatically close reliably, including the automatic closure of the smoke exhaust fire damper.

Shut off; the gap between the blades or between the blades and baffles should not exceed 2mm. Measure the gap between the blades or between the blades and baffles using a feeler gauge.

After undergoing 10 opening tests for reliability, both the electric and manual smoke exhaust valves open immediately.