Description
BDD backdraft dampers improve comfort and save energy and money by keeping unwanted air from entering a duct when a fan is not operating. This can be very beneficial in keeping outside air from being drawn into a room, or preventing the reversal of indoor air when a number of fans are joined to exhaust through a common duct. Utilizing a backdraft damper in this manner prevents air that is being exhausted from one area from backing up into other areas connected by the common duct.
The gravity damper features a galvanized steel housing and aluminum butterfly damper blades.
Features & Benefits of BDD Gravity Operated Backdraft Dampers
- Low air leakage design
- Galvanized steel housing, aluminum butterfly damper blades
- Gravity operated closure
- Install in horizontal or vertical (upblast only) position
- Suitable for supply or exhaust applications
- Available in three sizes: 7″, 14″ & 16″ sizes
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