Fire smoke damper actuators are designed specifically for fire and smoke application during normal operation, the 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 outage or trip by the thermal sensor. In general, motorised fire damper actuator is open. When the smoke exhaust pipe temperature reaches 280 degrees in a fire emergency, the fire smoke damper actuator is closed. The fire smoke damper actuator plays a very important role in smoke isolation and fire resistance. Among all the fire damper actuator manufacturers, Soloon is reliable and professional with its high-quality products at a reasonable fire damper actuator price.