Dynamic Fire Dampers
Dynamic (Fans On) 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.
FDD-ALB
Curtain Fire Damper - 1-1/2 & 3 Hour - Dynamic - Style A - Optional Sleeve
Product Overview
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 dynamic HVAC systems that continue to run in the event of fire. Also approved for static systems. (See optional 3 hr. rating)
- Dynamic Fire damper
- UL555 1 ½ hr. Rated
- Single Side Angle - 72"x36" or 36"x72"
- Optional Sleeve Lengths and Gauges
