WD-330 : Backdraft Damper, Vertical Mount
WD-330 : Backdraft Damper, Vertical Mount
The WD-330 backdraft damper is designed to prevent reverse airflow in horizontal exhaust applications, helping maintain system efficiency and protect connected equipment. Its no-flange configuration allows flexible integration into duct systems. The damper opens in response to differential air pressure and closes by gravity when airflow stops, providing simple, dependable operation. An optional motorpack is available to convert the WD-330 to motorized control for applications requiring powered operation and added flexibility
Product Highlights
| Airflow Direction |
Horizontal
|
|---|---|
| Blade Material |
Aluminum
|
| Frame Material |
Galvanized Steel
|
| Maximum Pressure Rating (in. wg.) |
2
|
| Maximum Velocity (fpm) |
2,500
|
| Mounting Orientation |
Vertical
|
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