roof ventilators


Model 53 Roof Ventilator, Direct Drive


The D53 roof ventilator is designed for heavy-duty, quiet and efficient upblast 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 D53 uses statically and dynamically balanced airfoil propellers for optimal performance and longevity. Available in steel, galvanized, stainless and aluminum construction.

Sizes (impeller diameters)

  • 12 to 72 inches (305 mm to 1,830 mm)


  • Airflow to 85,500 CFM (145,300 m3/hour)
  • Static pressure to 0.75 inches w.g. (190 Pa)

Installation Manual