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Model FD2D-B
1-1/2 Hour Rated - Dynamic Fire Damper
Thinline Curtain Style
The FD2D-B fire damper employs curtain style blades for point-of-origin control of fire in static and dynamic HVAC systems. The FD2D-B is qualified to 4,000 ft/min (20.3 m/s) and 4 in.wg. (1.0 kPa) and may be installed in vertical walls or partitions with fire resistance ratings up to 2 hours.
Standard Construction
Frame: 22 ga. (0.85) galvanized steel.
Blades: 24 ga. (0.7) galvanized steel - curtain style.
Fire Closure Device: Fusible link.
Fire Closure Temperature: 165oF (75oC)
Minimum Size: 6" x 4" (152 x 102)
Maximum Size: Single Section: 36" x 40" (914 x 1016)
Multiple Section: 72" x 29" (1829 x 737)
36" x 65" (914 x 1651)
Ratings
UL 555 Fire Resistance Rating: 1-1/2 hour (vertical)
UL HNLJ.V-5: Ventilation Duct Assemblies
UL 555 Listing: R14981
CSFM Listing: 3225-1404:101
New York City MEA Listing: 295-98-E
Meets NFPA Standards: 90A, 92A, 92B and 101
Meets Building Code Standards: IBC, NBC, NFPA, SBC and UBC