eCAPS
BD-90
The BD-90 backdraft damper mounts horizontally to allow vertical airflow up and prevent reverse airflow down. The dampers are open by air pressure differential and closed by gravity.
- Pressure: Up to 2 in. wg
- Velocity: Up to 1500 fpm
- Temperature: Up to 180°F
- Accessory to power roof ventilators and centrifugal roof exhaust fans
Codes:
ASHRAE 90.1
Certifications:
AMCA Air Leakage and Air Performance
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BD-90
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