Butterfly Damper Calculator

Use this calculator to determine opening area of the damper.

Butterfly Damper 1.jpg

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 Calculator

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