On-Line Catalog : Fire Dampers > Dynamic - 1½ hr > Airfoil Blade > FD-150
Model FD-150 1-½ hour — fire damper
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 3,000 ft/min (15.3 m/s) and 4 in.wg. (1.0 kPa) and may be installed in vertical walls or partitions, or horizontally in floors or assemblies with fire resistance ratings up to 2 hours.