Backdraft Damper
The BD-230 backdraft damper employs gravity operated extruded style blades to restrict reverse airflow and to permit the forward flow of air in the intended direction. The BD-230 damper may be mounted vertically or horizontally (airflow up) in either exhaust or intake installations for low to medium velocity and pressure applications.
Frame: 1-15/16" x 15/16" X 0.125" (49 x 24 x 3) extruded aluminum channel.
Blades: 0.07" (1.8) thick aluminum - extruded.
Linkage: Exposed on blade.
Bearings: Synthetic.
Seals: Extruded vinyl blade edge.
Minimum Size: 6" x 6" (152 x 152)
Maximum Size: Single Section: 48" x 52" (1219 x 1321)
Multiple Section: Unlimited
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