Model FSD-352 3 hour • UL class 2 - combination fire smoke damper airfoil blade


The FSD-352 combination fire smoke damper employs airfoil blades for point-of-origin control of fire and smoke in static and dynamic smoke management systems. The FSD-352 is qualified to 4,000 ft/min (20.3 m/s) and 8 in.wg. (2.0 kPa) and may be installed horizontally in floors or assemblies with fire resiistance ratings up to 4 hours.