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BR-40 Series

The BR-40 series is a pivoted backdraft damper for low-velocity systems. Horizontal mount with a vertical airflow down. Dampers in this series include the BR-40 (no flange) along with BR-41 (flange on discharge) and BR-42 (flange on intake).

  • Back Pressure: 2 in. wg (.5 kPa)
  • Start-to-Open Pressure: 0.05 in. wg (.01 kPa)
  • Velocity: Up to 2000 fpm (10.2 m/s)
  • Temperature: Up to 180°F (82°C)