Final answer:
The Butterfly valve is used in air or large water piping systems to control the flow of fluid. It operates quickly, manages a wide range of fluid flow, and is an efficient final control element.
Step-by-step explanation:
The Butterfly valve is used as a final control element in air or large water piping systems. Unlike other valves, a butterfly valve is a quarter-turn valve known for its quick operation and the ability to manage a wide range of fluid flow. The disc at the heart of a butterfly valve rotates to open or close, offering a durable and efficient way to control flow.
Other valves, like needle, gate, globe, and ball valves serve different purposes Each type of valve offers unique features, but for handling large volumes of water or air where a quick and efficient operation is required, the butterfly valve is the preferred choice.