What type of valve is designed to minimize wire drawing and seat erosion?

The globe valve is specifically designed to minimize wire drawing and seat erosion, particularly in applications involving throttling and flow regulation. Its design includes a disk that is raised and lowered onto a seat formed inside the valve body, creating a tight seal when closed. This construction allows the flow of fluid to be controlled more precisely than with other types of valves.

In situations where fluid flows rapidly across a valve's seat, such as when a valve is partially open, the risk of wire drawing—where small particles or wire-like features are formed—increases. The globe valve’s seating surface is better protected because the flow is directed in a manner that reduces turbulence, thereby limiting the wear and tear on the seat. This feature is critical in maintaining the valve's integrity over time, especially in high-velocity applications.

By contrast, other types of valves like gate valves and butterfly valves are not designed primarily for fine regulation of flow, and can experience higher rates of wear on their seats under similar conditions. Ball valves provide excellent sealing and are ideal for on-off control, but they do not provide the same level of throttling capability without risking damage to the seats. Thus, the globe valve is the preferred choice for applications where minimizing wear and maintaining flow control is crucial.