Life-Safety Fire Dampers Fire Dampers employ airfoil blades for point-of-origin control of fire in static and dynamic HVAC systems. They are UL555 tested and designed to close upon detection of elevated heat.
FD-150/350 – Air Foil
FD-125R – Round Single-Blade
The FD-125R comes standard with mounting plates for interface to round or square openings in masonry, metal stud, or wood stud assemblies. Ideal for all round duct applications. n Maximum Dynamic Closure Velocity: 2,000 fpm n Maximum Rated Pressure: 4 in. wg. n 304 Stainless Steel Option
The FD150/350 may be installed in vertical walls or partitions, or horizontally in floors and assemblies with fire resistance ratings up to 2 hours (FD-150) and 4 hours (FD-350). n Maximum Dynamic Closure Velocity: 4,000 fpm n Maximum Rated Pressure: 6 in. wg.
FD-150-OP – Out of Partition
The FD-150-OP is approved for installation with the closed plane of the blades up to 14-1/2" outside the fire-rated partition and allows for direct service access from the face of the damper through the HVAC grille. n Maximum Dynamic Closure Velocity: 4,000 fpm n Maximum Rated Pressure: 6 in. wg.
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