Butterfly Damper

Use this calculator to determine opening area of the damper.

This page exists due to the efforts of the following people:

Pete Mazz

Created: 2015-04-02 11:24:58, Last updated: 2020-11-03 14:19:32
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PLANETCALC, Butterfly Damper

Butterfly Damper

Number of openings in the damper.
Measure from the center of the cover to the outer edge of the opening.
Measure the circular center section of the damper.
Measure across the widest part of the opening.
Opening Area
 
Opening %
 
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PLANETCALC, Butterfly Damper

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