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Round Barometric Relief Dampers
Available Sizes: 8”, 10", 12", 14", 16” Diameter
Our most popular relief dampers due to low cost and ease of installation.
The DDRD Series barometric relief damper comes installed in a round sheet metal enclosure similar to a motorized damper.
This relief damper features an adjustable, weighted arm used to increase and decrease air flow resistance. A 12" barometric relief will handle up to a 5 ton unit. Our unit features a longer arm than most for better airflow adjustment.
Extra weights are available.
Use flexible or rigid duct with starting collars for easy installation.
Application: Residential and light commercial zoning systems 5 ton and under.