WD-400 : Non-Motorized Backdraft Damper
WD-400 : Non-Motorized Backdraft Damper
The WD-400 is a non-motorized backdraft damper designed for flexible mounting, vertically for intake air applications while preventing reverse flow. Its no-flange configuration supports streamlined integration into duct systems. The damper opens in response to differential air pressure and closes with spring assistance to ensure reliable sealing when airflow stops. The WD-400 provides dependable, low-maintenance backdraft protection for a variety of intake and vertical airflow applications.
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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