Belt drive fans are downblast centrifugal power roof ventilators designed for exhausting clean air.

Capacities up to 31,810 CFM and up to 1 inch static pressure. The PL is built to be a low profile exhauster. PL exhausters are suitable for all types of commercial and institutional buildings such as schools, hospitals, office buildings and retail stores.


Construction Features



  • Hoods and base constructed of heavy gauge aluminum and supported by steel frame
  • Bolted-on hood provides easy access to motor and drive compartment for servicing
  • Rugged structural frame transmits entire weight of motor, impeller, drive assembly and hood directly to roof curb
  • Steel fasteners are zinc dichromate plated
  • Heavy gauge galvanized wire birdscreen
  • Full perimeter storm band and wide hood overhang provide extra protection from driving rain and snow
  • Full 360° perimeter hood outlet area for quiet, efficient performance

Airfoil Centrifugal Wheel

  • Aluminum construction backward curved blade
  • Non-overloading design for safe operation
  • Precision balanced for smooth vibration free operation


  • Permanently lubricated in an Acme D.S. pillow block housing
  • Bearings are resiliently mounted in neoprene rings
  • Rated at L50 life of 200,000 hours
  • 5 year limited warranty on Acme D.S. pillow block bearings
  • Pillow block bearings standard on PL365-543

 Drive Assembly 

  • Cast iron drives sized for 150% of drive horsepower
  • Static free, oil and heat resistant belts


  • Continuous duty motors moutned on slide rails to maintain correct belt tension
  • Factory wired to junction box


  • Roof Curbs
  • Dampers
  • Coatings
  • Curb Hinge
  • Louvered Hood (PLZ)

Additional Info

  • Max Static Pressure: 1.0" w.c.
  • Max Airflow (CFM): 31,810
  • Drive Type: Belt Drive
  • Blade Type: Centrifugal

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    Belt drive, centrifugal lab exhauster with the motor,


    Belt drive, centrifugal exhauster with the motor, drives and bearings located outside the airstream.


    Restaurant exhausters are belt drive upblast centrifugal exhausters. Capacities up to 33,374 CFM and up to 3 inches static pressure.


    Restaurant exhausters are direct drive upblast centrifugal exhausters. Capacities up to 5,317 CFM and up to 1 1/4 inch static pressure.

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