What type of valve is most commonly used in the plumbing industry for its higher flow rate?

A ball valve is the most commonly used valve in the plumbing industry specifically because it provides a higher flow rate compared to many other types of valves. This type of valve features a spherical disc, also known as a "ball," which has a hole through its center. When the ball is rotated to align the hole with the flow of water, it allows for minimal resistance and a straight path for the fluid to pass through. This design enables a very efficient flow, making ball valves particularly suitable for applications where quick shut-off and high flow rates are necessary.

In contrast, other kinds of valves, such as globe valves, typically offer more resistance to flow due to their design, which includes a more complex internal structure that affects how the fluid passes through. Check valves, while necessary for preventing backflow, do not facilitate higher flow rates in the same effective manner. Butterfly valves, although capable of managing large volumes, can also experience flow restrictions based on their disc design.

Therefore, the ball valve stands out in plumbing applications for those seeking to maximize flow efficiency while maintaining control over the water supply.