Model FD-150 1-½ 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. (10.2 m/s) and may be installed in vertical walls or partitions, or horizontally in floors or assemblies with fire resistance ratings up to 2 hours. It is qualified to 2000 ft/min (10.2 m/s) for multiple sections and 4 in. wg. (1.0 kPa) below 8" in height, above 64" x 48" (1626 x 1219) or above 32" x 96" (813 x 2438).