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Butterfly Valve
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A circular disk mounted on an internal shaft pivots to control airflow from fully open (100% flow) to fully closed (shutting off all air) and anywhere in between. Once the butterfly valve is set, a locking quadrant holds it in place.
- Known as Butterfly Damper, Butterfly Valve, or Volume Damper
- Diameters are +/- 1/8 inch.
*During Monday-Friday 8 am-5 pm EST
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