roof ventilators


Model 53 Roof Ventilator, Belt Driven


The B53 Upblast Roof Ventilator is designed for heavy-duty exhaust and is well-suited for continuous use. This unit features a steel base plate welded to tubular steel struts to form a strong support for the motor and mounting base. The B53 uses statically and dynamically balanced airfoil impellers for optimal performance and longevity. Available in steel, galvanized, stainless and aluminum construction.

Sizes (impeller diameters)

  • 24 to 72 inches (610 mm to 1,830 mm)


  • Airflow to 91,900 CFM (156,100 m3/hour)
  • Static pressure to 0.75 inches w.g. (190 Pa)

Installation Manual