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SQAD/SQBD Direct Drive Fans
Direct Drive SQAD/SQBD fans combine the performance and efficiency of Chicago's versatile "Square" Fans with the advantages of a compact directly driven arrangement. With the fan wheel mounted directly onto the motor shaft maximum efficiency is constantly maintained. Belt noise, power loss, maintenance and troublesome adjustments are eliminated.
Product Bulletin: SQAD
Operation & Maintenance Manual: Industrial Centrifugal Fans
SQAD/SQBD Direct Drive Fan Applications
Chicago's Direct Drive Fan is available as a SQBD with backwardly inclined blades in addition to the airfoil bladed SQAD. With the choice of two types of wheels application duty can be matched precisely. Also, the different performance characteristics of the two wheels allow for a wider performance range at standard synchronous motor speeds. The compact SQAD/SQBD direct drive fans are used in diverse OEM applications, from packaged forced air and dust collectors to pressurizing and aeration installations.
Fan Options
  • Housing drain
  • Quick clamp door
  • Spark resistant construction
  • Inlet screen
  • Shaft seal
  • Slip fit inlet
  • Punched flanged inlet
  • Punched flanged outlet
  • Inlet volume control
  • Cast aluminum wheel
  • Percentage width add
  • Rugged housing
  • Rigid motor base
  • Four discharge positions
  • Streamlined inlet
  • Factory run tested
  • AMCA certified performance
  • Sizes: 8-3/4 to 30
  • Volumes to 27,386 CFM
  • Pressures to 22” wg
  • Temperatures to 180°F
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