WD-410 : Non-Motorized Backdraft Damper
WD-410 : Non-Motorized Backdraft Damper
The WD-410 is a non-motorized backdraft damper designed for horizontal mounting in vertical (downward) airflow applications. It uses airflow pressure differential for automatic blade opening and spring-assisted closure to prevent reverse airflow when the system shuts down, no motor, wiring, or controls required. With its simple, mechanical design and no optional motor packs, the WD-410 delivers dependable, low-maintenance backdraft protection you can count on.
Product Highlights
| Airflow Direction |
Vertical Down
|
|---|---|
| Blade Material |
Aluminum
|
| Frame Material |
Galvanized Steel
|
| Maximum Pressure Rating (in. wg.) |
2
|
| Maximum Velocity (fpm) |
2,500
|
| Mounting Orientation |
Horizontal
|
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