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

  • PV PV

    Belt drive fans are centrifugal power roof ventilators designed for exhausting clean air. Capacities up to 40,608 CFM and up to 2 inch static pressure. The aerodynamic design of the PV impeller and orifice results in high air performance and low sound. Typical applications for the PV includes a wide range of commercial, institutional, and industrial facilities such as schools, office buildings, hospitals, prisons, assembly areas, and restaurants.

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