BD-52 8” Rectangular Counterbalanced Backdraft Damper

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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)


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