What is a common use for a gate valve in fluid systems?

A gate valve is primarily used to isolate sections of piping in fluid systems. Its design allows for a straightforward on/off control without significant resistance to the flow when the valve is fully open. This is achieved through the gate mechanism that moves perpendicular to the flow direction, creating a clear passage when the valve is open.

In scenarios where portions of a system need maintenance or if a specific section needs to be taken offline, the gate valve effectively provides a reliable means of isolation. This feature is crucial in managing fluid systems, as it ensures safe maintenance procedures are possible without affecting the entire system operation.

While controlling pressure, adjusting flow, and preventing backflow are essential functions within fluid systems, they are typically managed by other types of valves such as pressure relief valves, globe valves, and check valves, respectively. Gate valves are not designed for throttling or to prevent backflow effectively, as their primary functionality is based on complete open or closed positions rather than flow regulation or backflow prevention.