Manufacturer: American Warming and Ventilating

BD-53 8” Rectangular Counterbalanced Backdraft Damper.
Counterbalanced Backdraft, End-Pivoted Airfoil (Vertical or Horizontal Mo.unt)

Damper Depth8"

DescriptionCounterbalanced Backdraft, End-Pivoted Airfoil (Vertical or Horizontal Mount)

Max Face Velocity6400 FPM

Max Pressure13.5 in. wg

Max Temperature250 F

Min Size6" x 6"

Max Size48" x 96"

Frame Material10 Ga. Galvanized Steel thru 1/4" thk. Mild Steel

Blade Material16 Ga. Thru 14 Ga. Galvanized Steel, Airfoil Shape, 7-15/16" Max Width

Axles3/4" Dia. Plated Steel, Full Length

BearingsRelubricable Ball Bearings

LinkageHeavy Duty Mild Steel Arms & Bar w/ Shoulder Bolts, Washers & Locknuts

StopsGalvanized Steel


ActuatorCounterbalanced For Ease Of Operation

SealsNone Is Standard (upon request, see seal options)