The butterfly control valve is a type of quarter-turn valve designed for efficient flow regulation and quick shutoff. It operates similarly to a ball valve, providing rapid closure to stop flow when needed. However, unlike ball valves, butterfly valves can also modulate flow incrementally. This ability allows the valve to gradually open or close, providing precise control over the flow rate.

The distinctive feature of a butterfly valve is its disc, which remains partially in the flow path even when the valve is open. This design helps manage pressure drops across the valve and offers a balanced flow control. The compact and lightweight design of the butterfly valve makes it suitable for applications where space is limited or where precise control of the flow is necessary, such as in water treatment, HVAC systems, and various industrial processes.
 

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