Name one type of valve commonly used in plumbing systems.

Ball valves are commonly used in plumbing systems due to their ability to provide a reliable seal and quick shut-off capabilities. These valves consist of a spherical disc, which can be rotated to open or close the flow of liquid or gas. When the ball is turned so that the hole is in line with the flow, the valve opens, allowing the fluid to pass through. Conversely, turning the ball 90 degrees ensures that the hole is perpendicular to the flow, effectively blocking it.

The durability and simple operation of ball valves make them ideal for both residential and commercial plumbing applications. They can handle high pressures and are resistant to wear, which contributes to their longevity. Additionally, ball valves are available in various materials, which can be selected based on the specific requirements of the plumbing system, such as temperature and type of fluid being handled.

While other types of valves, such as check valves, throttle valves, and butterfly valves, serve important functions in various contexts within plumbing and fluid systems, ball valves are particularly favored for on/off control in a straightforward and effective manner.