On-Line Catalog : Smoke Dampers > Airfoil Blade > SD-151
Model SD-151 UL class 1 — smoke damper
The SD-151 smoke damper employs airfoil blades for point-of-origin control of smoke in static and dynamic smoke management systems. The SD-151 is qualified to 4,000 ft/min (15.3 m/s) and 4 in.wg. (1.0 kPa) and may be installed in, or adjacent to vertical walls or partitions, or horizontally in, or adjacent to floors or assemblies.