WD-220 : Motorized Backdraft Damper
WD-220 : Motorized Backdraft Damper
The WD-220 is a motorized backdraft damper designed to open when energized and spring-return closed when de-energized, providing reliable, fail-safe airflow control. Suitable for horizontal or vertical mounting, it features a flange opposite the motor for secure duct connection and flexible installation options. Electric motorpacks ship separately to accommodate application-specific configurations. Ideal for use with roof or sidewall supply (intake) fans, the WD-220 helps prevent undesirable reverse airflow and maintain system integrity when fans are offline.
Product Highlights
| Airflow Direction |
Vertical Up
Vertical Down
Horizontal
|
|---|---|
| Blade Material |
Aluminum
|
| Frame Material |
Galvanized Steel
|
| Maximum Pressure Rating (in. wg.) |
1
|
| Maximum Velocity (fpm) |
2,500
|
| Mounting Orientation |
Horizontal
Vertical
|
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