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Pottorff W-11902

Pottorff W-11902 Backdraft Damper, 12 x 12 in, Extruded Aluminum

Pottorff W-11902

Pottorff Backdraft Damper, BD-50 Model, 12 x 12 in Size, Leakage: 9.5 cu-ft/min/sq-ft at 3.5 in WG, 8.5 cu-ft/min/sq-ft at 3 in WG, 7 cu-ft/min/sq-ft at 2 in WG, 1250 ft/min, Formed Blade, Extruded Aluminum, Horizontal Upflow/Vertical Mounting, 3.5 in WG Differential Pressure, -25 to 150 deg F, 2 in L

Model      :      BD-50
Size      :      12 x 12 in
CFM Rating      :      Leakage: 9.5 cu-ft/min/sq-ft at 3.5 in WG, 8.5 cu-ft/min/sq-ft at 3 in WG, 7 cu-ft/min/sq-ft at 2 in WG, 1250 ft/min
Blade Type      :      Formed
Material      :      Extruded Aluminum
Mounting Type      :      Horizontal Upflow/Vertical
Pressure Rating      :      3.5 in WG Differential
Temperature Rating      :      -25 to 150 deg F
Length      :      2 in
  • Backdraft damper employs gravity operated formed-style blades to restrict reverse airflow and to permit the forward flow of air in the intended direction
  • The BD-50 damper may be-mounted vertically or horizontally in either exhaust or intake installations for low velocity and pressure applications
  • Constructed with 2 x 1/2 x 0.06 in extruded aluminum channel frame and 24 ga formed aluminum blades
  • Nylon bushings
  • They are constructed for vertical-mounting and horizontal upflow
  • Aluminum tie bar interconnects all blades for increased stability at higher velocities upto 1250 ft/min
  • Blade edge open cell neoprene gaskets reduce leakage and noise
  • Units supplied approximately 1/4 in under nominal duct dimension
  • Neoprene blade edge seals
  • Exposed, on-blade linkage
  • 3/16 in Dia synthetic axles
  • 5 years warranty
  • pdf Specification Sheet https://assets.unilogcorp.com/267/ITEM/DOC/Pottorff_W_11902_Specification_Sheet.pdf