BD-53
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
FinishMill
ActuatorCounterbalanced For Ease Of Operation
SealsNone Is Standard (upon request, see seal options)