Butterfly Damper Icon

Free Butterfly Damper icon for manufacturing documents. Transparent PNG, commercial use OK, no sign-up.

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Category: Mechanical Parts · Updated 2026-10-18

About the Butterfly Damper

A butterfly damper controls airflow in a duct with a round disc that rotates on a central shaft. It is common in ventilation and exhaust systems where flow must be throttled or shut off.

Where to use this icon

• Duct and ventilation system diagrams
• HVAC equipment specification sheets
• Maintenance checklists for exhaust lines

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