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Backward Inclined Industrial Fans (BI)
Chicago's Design 10A BI Industrial Fan is a rugged multi-purpose centrifugal fan equipped with backward inclined wheels suited for harsh duty applications. With heavier blades to resist erosion and corrosion, the fan provides reliable operation in contaminated air with minimal maintenance. Similar BI wheels are used in Chicago's SQB fans for alternate duty applications. For clean airstreams, Chicago's airfoil bladed fans are recommended.
Product Bulletin: BCF
Operation & Maintenance Manual: Industrial Centrifugal Fans
Backward Inclined Industrial Fan Applications
Chicago's backward inclined blades are designed to handle corrosive or dusty airstreams. Typical applications include oven circulators, dust collectors, fume exhausters and emission control systems. The BI Industrial fan is one of the industry’s leading high temperature industrial exhaust fans as it is suited for up to 800°F. The solid steel blades are ideal for custom applied corrosion resistant coatings.
Fan Options
  • Punched flanged inlet
  • Punched flanged outlet
  • Housing drain
  • Cleanout door
  • Inlet screen
  • Shaft cooler and guard
  • Shaft and bearing guard
  • Spark resistant construction
  • Split fit inlet
  • Shaft seal
  • Extended grease tube fittings
  • Inlet volume control
  • Horizontal split housing
  • A/9 Mount motor and drive
  • Companion flanges
  • Arrangement 8
  • Backward inclined wheel with heavy flat blades that resist corrosion
  • Smooth steep pressure curve
  • Non-overloading horsepower characteristic
  • Spun steel wheel cone optimizes air flow
  • Continuously welded heavy steel plate construction
  • Packaged fans with motor and accessories are run tested, shipped ready to install
  • AMCA certified performance
  • Sizes: 135 to 807
  • Volumes to 263,000 CFM
  • Pressures to 30” wg
  • Temperatures to 800°F
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