Manufacturer: American Warming and Ventilating

BD-561 10” Round Counterbalanced Backdraft Damper.
Counterbalanced Backdraft, Single Thickness (Vertical or Horizontal Mount).

Damper Depth10" Min.

DescriptionCounterbalanced Backdraft, Single Thickness (Vertical or Horizontal Mount)

Max Face Velocity3000 FPM

Max Pressure5 in. wg

Max Temperature300 F

Min Size6" Dia.

Max Size48" Dia.

Frame Material10 Ga. Mild Steel

Blade Material12 Ga. Mild Steel thru 10 Ga. Mild Steel

Axles1/2" Dia. Mild Steel thru 1" Dia. Mild Steel, Full Length

BearingsPress Fit Flanged Ball Bearings


Stops1/2" Dia. Steel Pin

Finish(1) Coat of Primer

ActuatorCounterbalanced For Ease Of Operation

SealsNone Is Standard (upon request, see seal options)