Model FD-150
1-1/2 Hour - Fire Damper
Airfoil Blade
The FD-150 fire damper employs airfoil blades for point-of-origin control of fire in static and dynamic HVAC systems. The FD-150 is qualified to 4,000 ft/min (20.3 m/s) and 6 in.wg. (1.5 kPa) and may be installed in vertical walls or partitions, or horizontally in floors or assemblies with fire resistance ratings up to 2 hours.
Standard Construction
Frame: 5" x 1" (127 x 25) galvanized steel hat channel with interlocking corner gusset. Equivalent to 13 gauge (2.4) channel frame. Low profile head and sill used on sizes less than 13" (330) high.
Blades: 6" x 14 ga. (152 x 2.0) galvanized steel - airfoil.
Axles: 1/2" (13) diameter plated steel hex.
Linkage: Concealed in frame.
Bearings: Stainless steel oilite, sleeve-type.
Seals: Silcone blade edge seals integrally rolled and mechanically fastened to blades. Flexible metal jamb seals.
Fire Closure Device: Fusible link.
Fire Closure Temperature: 165oF (75oC).
Minimum Size: 8" x 6" (203 x 152)
Maximum Size:
Single Section: 32" x 48" (813 x 1219)
Vertical: 128" x 96" (3251 x 2438)
Horizontal: 120" x 96" (3048 x 2438)
Ratings
UL 555 Fire Resistance Rating: 1-1/2 hour (vertical and horizontal)
UL HNLN: Ventilation Duct Assemblies
Maximum Dynamic Closure Velocity:
4,000 fpm (20.3 m/s)
2,000 fpm (10.2 m/s) Multiple Sections
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