Backdraft Dampers

Designed to allow airflow in one direction and prevent reverse airflow. Backdraft dampers are available in galvanized steel, aluminum, PVC, and 304 stainless steel. Pressure Relief dampers are available in galvanized steel and 304 stainless steel.

Backdraft Dampers

Overview

  • Model HB

    Model HB

    Heavy Duty/Industrial
    A backdraft damper is an isolation damper allowing air in one direction only. Greenheck's HB damper series is designed to prevent back flow at static pressures and velocities up to 20 in. wg and 6400 fpm, respectively.


  • Models EM/ES/PS/WD

    Models EM/ES/PS/WD

    Exhaust Dampers
    Exhaust backdraft damper models are designed to allow exhaust airflow but prevent airflow in the reverse direction. Typically used with a fan or power roof exhauster. Vertical or horizontal mount.

    Intake Dampers
    Intake backdraft damper models are designed to allow supply airflow into a building but prevent airflow in the reverse direction. Typically used with a fan or gravity intake ventilator. Vertical or horizontal mount.


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