Model DFD-110 is for use in walls, floors, and partitions with a fire-resistance rating less than three hours. This model has a 2³/₁₆ inch (56 mm) frame. Dynamic-rated-fire dampers are in HVAC systems that remain operational in the event of a fire.
Pressure: Up to 4 in. wg (1 kPa)
Velocity: Up to 4000 fpm (20.3 m/s)
Temperature: Up to 286°F (141°C)
