Fire Dampers - DFDAF-330

Model DFDAF-330 is a multi-blade dynamic-rated-fire damper with airfoil style blades for use in walls, floors, and partitions with fire-resistance ratings of three hours or more. Dynamic-rated-fire dampers are used with a HVAC systems that remain operational during a fire emergency.

Pressure: Up to 8 in. wg (2 kPa)

Velocity: Up to 4000 fpm (20.3 m/s)

Temperatures: Up to 350°F (177°C)