BD-12
Manufacturer: American Warming and Ventilating
BD-12 1-⅞” Commercial Rectangular Backdraft Damper.
Gravity Operated Backdraft, Single Thickness w/ 3/4" x .051 Expaned Aluminum Bird Screen (Vertical Mount).
Damper Depth1-7/8"
DescriptionGravity Operated Backdraft, Single Thickness w/ 3/4" x .051 Expaned Aluminum Bird Screen (Vertical Mount)
Max Face Velocity1000 FPM
Max Pressure1 in. wg
Max Temperature200 F
Min Size6" x 6"
Max Size30" x 96"
Frame Material.063 6063-T5 Extruded Aluminum (Flanged or Drop-In)
Blade Material26 Ga. Aluminum
Axles3/16" Dia. Plated Steel, Stub
BearingsHeavy Duty Molded Nylon
LinkageNone
StopsAluminum Angle
FinishMill
ActuatorGravity Operated
SealsPolyurethane Sponge On The Sill and Felt Between Adjacent Blades