EM-30 Series
The EM-30 series are vertically mounted backdraft dampers designed to allow horizontal airflow. Model EM-30 has no flange, model EM-31 has a flange on the discharge side, and model EM-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 10 in. wg (2.5 kPa)
- Velocity: 2500-3500 fpm (13 - 18 m/s)
- Temperature: Up to 180°F (82°F)
Certifications:
AMCA Air Leakage and Air Performance
ASHRAE 90.1
IECC (International Energy Conservation Code)
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EM-30 Series
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