Manufacturer: American Warming and Ventilating

BD-72 2-⅜” Commercial Rectangular Backdraft Damper.
Gravity Operated Backdraft, Single Thickness (Horizontal Mount Downflow).

Damper Depth2-3/8"

DescriptionGravity Operated Backdraft, Single Thickness (Horizontal Mount Downflow)

Max Face Velocity2500 FPM

Max Pressure1 in. wg

Max Temperature200 F

Min Size6" x 6"

Max Size30" x 72"

Frame Material.063 6063-T5 Extruded Aluminum (Flanged or Drop-In)

Blade Material24 Ga. Aluminum thru 22 Ga. Aluminum

Axles3/16" Dia. Plated Steel, Full Length

BearingsHeavy Duty Molded Nylon

LinkagePlated Steel Brackets, Stainless Steel Shoulder Rivets and Aluminum Linkage Bars

StopsAluminum Angle



SealsGravity Operated Is Standard (Optional Manual or Electric)