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.
C&S Air Products Adjustable Counterbalanced Backdraft Damper, 9.9 cfm/sq-ft, Aluminum, Flange Mounting, 0.75 to 1.5 kPa, -40 to 200 deg F, 12 to 48 in Width, Additional Information: 1-7/8 x 13/16 x 0.081 in Extruded Aluminum Frame, 0.05 in THK Extruded Aluminum Blade, Exposed on Blade Linkage, Synthetic Bearings, Extruded Vinyl Blade Edge Seal, On-Blade Adjustable Counter Balances
Instruction/Installation Manual