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Direct Drive Plug Fans
Direct drive simplicity converts to lower initial cost and less operating expense, as there are no fan shafts, bearings, belts or guards to maintain. Direct Drive Plug Fans utilize Chicago's quiet, efficient airfoil wheel with a hyperbolic inlet cone. Exceptional rigidity is afforded by the heavy steel panel with flanged edges and gusseted motor base. Direct Drive Plug fans are designed for horizontal or vertical installation.
Literature
Product Bulletin: SPFD
Operation & Maintenance Manual: Industrial Plug Fans
Direct Drive Plug Fan Applications
Chicago's Direct Drive Airfoil Plug Fan offers a compact economical alternative to belt drive plug fans. Applications include packaged equipment for cooling, drying, dust collection, recirculation and aeration systems. For retrofit installations, the compact direct drive configuration allows greater system flexibility. When coupled with a variable frequency drive (VFD), performance is no longer limited to synchronous motor speeds.
Fan Options
  • Inlet volume control
  • Shipping crate
  • Housing
  • Slip fit inlet
  • Aluminum inlet cone
  • 72% width inlet cone
  • Type "B" steel wheel
  • Shaft seal
  • Fully assembled and run tested
  • Mount motor base, motor and drive
  • Extended grease fittings
  • Cone mounting hardware
  • Panel mounting holes
Features
  • Unhoused wheel installs inside unit with the drive panel on the outside
  • Efficient airfoil wheel has steep pressure curve that compensates for system variation
  • Stable air flow over entire performance range
  • Spun steel wheel cone optimizes air flow
  • Large flush mounting panels minimize panel wall loading
  • Rugged gusset construction with heavy gauge adjustable motor base
Performance
  • Sizes: 12-¼ to 30
  • Volumes to 25,900 CFM
  • Pressures to 12” wg
  • Temperatures to 180°F
Alternate Fan Designs
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