Static (Fans Off) Fire dampers are UL555 tested and labeled devices installed in ducts and air transfer openings or air distribution systems, designed to close upon the detection of heat.

FD-ASL

Slimline Curtain Fire Damper - 1-1/2 & 3 Hour - Static - Optional Sleeve - Out of Wall Option

Application

UL classified for installation in walls, floors, and partitions with a fire rating of less than 3 hours. This damper may be installed vertically or horizontally in static HVAC systems that automatically shuts down in the event of fire. (See optional 3 hr. rating)

Product Information