rectangular fire damper
Model SSDFD-150 is for use in walls, floors, and partitions with fire-resistance ratings less than three hours. This model has a 3¹¹/₁₆ inch frame. Dynamic-rated-fire dampers are in HVAC systems that remain operational in the event of a fire.
304 stainless steel construction
Pressure: Up to 4 in. wg
Velocity: Up to 4000 fpm
Temperature: Up to 286°F