Adjustable Counterbalanced Backdraft Damper
The CBD-130 backdraft damper employs counterbalanced gravity operated extruded style blades to restrict reverse airflow and to permit the forward flow of air in the intended direction. The CBD-130 damper may be mounted vertically or horizontally (airflow up) in either exhaust or intake installations for low to medium velocity and pressure applications.
Frame: 1-7/8" x 13/16" X 0.081" (46 x 21 x 2) extruded aluminum channel.
Blades: 0.05" (1.3) thick aluminum - extruded.
Linkage: Exposed on blade.
Bearings: Synthetic.
Seals: Extruded vinyl blade edge.
Counterbalances: On blade - adjustable.
Minimum Size: 6" x 9" (152 x 229)
Maximum Size: Single Section: 48" x 48" (1219 x 1219)
Multiple Section: Unlimited
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