Rectangular fire damper DFD-150X series

The DFD-150X series is for use in walls, floors, and partitions with fire-resistance ratings less than three hours. This model has an integral sleeve. Dynamic-rated-fire dampers are in HVAC systems that remain operational in the event of a fire. Pressure: Up to 4 in. wg Velocity: Up to 4000 fpm Temperature: Up to 286°F DFD-150x12 has integral 12-inch sleeve DFD-150x14 has integral 14-inch sleeve DFD-150x16 has integral 16-inch sleeve