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-SAHG
Curtain Fire Damper - 1-1/2 & 3 Hour - Horizontal Dynamic - Sleeved - Behind Grille
Product Overview
Model FDD-SAHG is a dynamic curtain fire damper for grill mounting. The center line of the closed blades are to be within the plane of the masonry floor.
- Dynamic Rated to 2,000 fpm and 4” w.g.
- Sleeve of Various Lengths and Gauges
- Accommodate Grilles Up To 3” in Deep
- Horizontal masonry floors installation only
- 1 ½ Hour Rating (less than 3 hours assemblies)
- UL 555 File #R25410, ULC S112
