ES-30 Series

The ES-30 backdraft damper series are vertically mounted backdraft dampers designed to allow horizontal airflow up and prevent reverse airflow down. Model ES-30 has no flange, model ES-31 has a flange on the discharge side, and model ES-32 has a flange on the intake side. All dampers in this series open by air pressure differential and close by gravity. This series includes adjustable counterbalance weights to assist opening.

  • Aluminum construction
  • Pressure: Up to 6 in. wg, dependent on damper width
  • Velocity: Up to 2000 fpm
  • Temperature: 180°F