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        Hercules Industries 4BDD
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        Hercules Industries 4BDD

        Hercules Industries 4BDD Aluminum Backdraft Damper, 4 Inch, 6 Inch L

        Hercules Industries 4BDD

        Backdraft dampers are used in ventilation systems to allow airflow in one direction and prevent airflow in the opposite direction. A pressure relief damper is developed with an elevated and adjustable start-open pressure while providing the backdraft function.

        Brand Name      :      Hercules Industries
        Dimension      :      6 Inch Length
        Item Name      :      Backdraft Damper
        Material      :      Aluminum
        Size      :      4 Inch
        • System velocity and back pressure requirements
        • Mounting orientation and airflow direction
        • Mounting configuration (inserted into duct/opening or flange mounted)
        • Damper operation (gravity or motorized)
        • Start-open pressure