Where is a gate valve most commonly used?

A gate valve is most commonly used as an isolating device for repair. This is primarily due to its design, which allows for a full flow of fluid when fully opened and a complete shut-off when fully closed. Gate valves are not designed for regulating or throttling flow. Instead, they function effectively in applications where the objective is to either allow or completely block fluid flow.

In practical terms, when a valve is installed in a pipeline, maintenance or repair may be necessary, and a gate valve can be closed to isolate the section of the pipeline. This capability is crucial for ensuring that work can be performed safely, preventing fluid movement and potential leaks or accidents during maintenance tasks. Therefore, their application is specifically suited for scenarios that require complete isolation rather than controlled modulation of flow rates or pressure.