Fire Dampers - DFDAF-310

Model DFDAF-310 is a multi-blade airfoil dynamic-rated-fire damper used in walls, floors, and partitions with fire-resistance ratings less than three hours. Dynamic-rated-fire dampers are in HVAC systems that remain operational in the event of a fire. Pressure: Up to 8 in. wg (2 kPa) Velocity: Up to 4000 fpm (20.3 m/s) Temperatures: Up to 350°F (177°C)