BR-40 Series : Horizontal mount with a vertical airflow direction down.
BR-40 Series : Horizontal mount with a vertical airflow direction down.
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掳F (82掳C)
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