Backward Incline fan wheels have flat, backwardly inclined, single thickness blades. Non-overloading high efficiency design generates low to moderate pressures.

Airstream/Performance: Clean air to light dust loading, low to high volume and low to medium pressure.

Applications: Supply fans, forced draft fans, dust collector fans, baghouse, fans bin vent, exhaust fans, combustion air, reverse air, dryer fans, kiln and flue gas recirculation, fume hood and spray booths, undergrate, cooling air fans, balancing fans, general ventilation, process, corrosive and high temp applications.

  • Sizes 12-1/4” – 98-1/4” Wheel Diameter
  • AMCA Class 2, 3, 4 & 5
  • Volume up to 445,000 CFM
  • Pressure up to 28″ WG
  • Temperature Range -30° to 800°F
  • Arrangements 1, 3, 4, 4V, 7, 8, 9
BISW Inlet Side

Arrangement 1 Shown

BISW Wheel Types

Steel Wheel

  • For Relatively Clean Air Applications with Little or No Particulate
  • Tapered Shroud
  • Flat, Backwardly Inclined, Single Thickness Blades
  • Operating Temperatures up to 800 °F
BISW Wheel

Construction Features

  1. Continuously Welded Steel Housing
  2. Fixed Housing with Any Discharge Angle
  3. All wheels are balanced to grade G6.3 or better
  4. Shafting is 1045 bearing grade TG&P
    • Sized for the first critical speed to be 1.25 times the max speed or higher
  5. Anti-Friction Pillow Block Bearings
    • Premium grease lubrication
    • Rated bearing life (L10) of 100,000 hours
  6. Inlet (flange style shown)
  7. Flanged Outlet with Mounting Holes

Additional Features

  • Lifting Lugs for use in installation
  • Extended Lubrication Lines for Easy Maintenance
  • IATC Industrial Blue Enamel Paint
BISW Inlet Side

Arrangement 1 Shown

BISW Shaft Side

Available Options

Flanged Inlet

Flanged Inlet

Slip Inlet

Slip Collar Inlet