Dayton
Dayton 53DR12 backdraft damper 12 in 14-1/2 in square
A 12 in backdraft damper with a 14-1/2 in square opening, extruded aluminum frame and G-90 galvanized tie rods, rated to 2500 FPM
- Fits 12 in fan diameter for direct airflow control
- 14-1/2 in square opening matches standard wall cutouts
- Extruded aluminium frame with G-90 galvanised tie rods resists corrosion
- 927 sq ft free area allows high-volume air passage
- Rated to 2500 FPM maximum velocity for demanding ventilation
Dayton 12 in Backdraft Damper
The Dayton 53DR12 is a 12 in backdraft damper designed for wall mounting in vertical position. Its extruded aluminium frame and G-90 galvanised tie rods provide durable construction for HVAC airflow control. The unit requires a 14-1/2 in square opening and fits a 12 in fan diameter. Overall shutter dimensions are 17 in by 17 in with a 2-1/2 in frame depth.
Installers needing gravity-operated shutters
This damper suits installations where a gravity-closed, airflow-opened shutter is required on a vertical wall. It is not intended for motorised operation or horizontal mounting positions. Buyers who need powered actuators or ceiling-mounted configurations should look at alternative products. The 9/64 in mounting holes accept standard fasteners for secure attachment.
Free area 0.927 sq ft and 2500 FPM
The shutter provides 0.927 sq ft of free area and is rated for a maximum velocity of 2500 FPM, giving ample headroom for typical residential and light commercial exhaust fans. At higher velocities or in systems demanding larger free area, this model reaches its limit. The 5-3/4 in open depth and 1-1/2 in flange width define the installed profile.
Highlights
- Fits 12 in fan diameter for direct airflow control
- 14-1/2 in square opening matches standard wall cutouts
- Extruded aluminium frame with G-90 galvanised tie rods resists corrosion
- 927 sq ft free area allows high-volume air passage
- Rated to 2500 FPM maximum velocity for demanding ventilation
Specifications
| Brand | DAYTON |
|---|
Questions about this item
What size rough opening must I already have cut in the wall for this 12 in damper?
The unit requires a 14-1/2 in x 14-1/2 in square opening in the wall for proper installation.
Will the 17 in x 17 in overall flange cover the cutout left by my old 12 in shutter?
Yes, the 17 in square frame provides a 1-1/2 in flange on each side, which typically overlaps a standard 14-1/2 in rough opening left by a previous unit.
How can I verify the gravity blades open fully once the fan reaches 2500 FPM?
With the fan running at maximum velocity, visually confirm the blades are horizontal and the clear 0.927 sq ft free area is unobstructed.
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