BDD backdraft dampers are available in the spring-loaded and gravity style backdraft dampers. The spring loaded dampers are available in 4″, 5″, 6″, & 8″models with a center pin design and a 10″ & 12″ center post design. The gravity damper is available in 7″,14″ & 16″ and offers a galvanized steel housing and aluminum butterfly damper blades.
Spring Loaded Backdraft Dampers
Gravity Operated Backdraft Dampers
Select the Charts / Diagrams tab below for performance and dimension details on the following BDD models:
Spring Loaded Backdraft Damper Models:
Gravity Operated Backdraft Damper Models:
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