• Fire Resistant Pressure Relief Damper

  • BD-200-HD With Counterbalance Weights Inside the Airstream

Backdraft and Pressure Relief Dampers

Backdraft dampers are designed to allow airflow in one direction and prevent reverse airflow. Pressure Relief dampers have an adjustable open trigger pressure and close upon a decrease in the differential pressure across the damper. Pressure relief dampers also prevent backdraft air flow. Backdraft and pressure relief dampers are available in galvanized steel, aluminum and 304 stainless steel.