What type of valve is commonly used to control flow in water systems?

The gate valve is commonly used in water systems to control the flow of water because it provides a straightforward mechanism for starting or stopping flow. This type of valve operates by lifting a gate or wedge out of the flow path, which allows for minimal pressure drop and is particularly effective for fully open or fully closed applications. The design enables an unobstructed flow when open, making it suitable for systems where a straight flow path without significant resistance is preferred.

In addition to this, gate valves are favored for their durability and ability to handle high pressures, making them reliable for various water system applications, including water treatment plants and distribution systems. However, they are not well-suited for throttling flow, as partially open gate valves can experience issues like water hammer and excessive wear over time.

While other valve types, such as ball valves and butterfly valves, are also used in water systems for various purposes—such as their ability to regulate flow or provide a quick shut-off—the gate valve remains the industry standard when the goal is to either fully stop or allow water flow with minimal restriction.