Plug Fans

Greenheck Plug fans are designed and built to provide reliable service in industrial and commercial application where the fan operates unhoused within a pressurized plenum. They are suitable for supply, exhaust or recirculation systems.

Typical applications include heating and air conditioning systems, high temperature processes, spray booth evaporators and dust collectors, air curtains, custom air handlers and wash systems.

Plug Fans


  • Model PLG

    Model PLG

    In most instances, plug fans are unhoused and rely on the plenum space around the backward-inclined centrifugal wheel to direct airflow as required in the system. It is available in belt or direct drive with steel, aluminum or 316 stainless steel constructions.

    • 900 to 71,000 cfm per fan
    • Up to 8 in. wg
    • AMCA Spark B or C resistant construction (available)
    • 800°F maximum operating temperature (optional)


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