Regaining Fan-Outlet Static Pressure With Evasés Photo courtesy of The New York Blower Co.

Regaining Fan-Outlet Static Pressure With Evasés

When located directly at a fan outlet, an evasé results in a larger outlet area, allowing the regain of static pressure.

Editor’s note: This article is adapted from the Summer 2015 AMCA inmotion article “Evasés: What They Are and How and Why to Use Them,” portions of which were taken from articles written by former Air Movement and Control Association International Director of Engineering Standards Paul Saxon.1,2 To read the full article, go to

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