BD-563
Manufacturer: American Warming and Ventilating
BD-563 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 Velocity4000 FPM
Max Pressure13.5 in. wg
Max Temperature300 F
Min Size12" Dia.
Max Size72" Dia.
Frame Material10 Ga. Mild Steel thru 3/16" thk. Mild Steel
Blade Material10 Ga. Mild Steel thru 1/4" thk. Mild Steel
Axles3/4" Dia. Mild Steel thru 2" Dia. Mild Steel, Full Length
BearingsRelubricable Ball Bearings
LinkageNone
Stops1/2" Dia. Steel Pin
Finish(1) Coat of Primer
ActuatorCounterbalanced For Ease Of Operation
SealsNone Is Standard (upon request, see seal options)