Manufacturer: American Warming and Ventilating

BD-52 8” Rectangular Counterbalanced Backdraft Damper.
Counterbalanced Backdraft, End-Pivoted Airfoil (Vertical or Horizontal Mount).

Damper Depth8"

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

Max Face Velocity5150 FPM

Max Pressure8.5 in. wg

Max Temperature250 F

Min Size6" x 6"

Max Size48" x 96"

Frame Material12 Ga. Galvanized Steel thru 10 Ga. Galvanized Steel

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

Axles3/4" Dia. Plated Steel, Stub

BearingsPress Fit Flanged Ball Bearings

LinkagePlated Steel Brackets, Brass Barrels and Plated Steel Rod

StopsGalvanized Steel


ActuatorCounterbalanced For Ease Of Operation

SealsNone Is Standard (upon request, see seal options)