# Area valve

A valve box that isolates one zone of the pipeline for maintenance or in an emergency.

## Sources

- [Ultra Controlo, Medical gas answers: glossary](https://www.ultracontrolo.com/medical-gas-answers#term-area-valve)

Reviewed: 2026-10-22. Ultra Controlo engineering. https://library.ultracontrolo.com/glossary/area-valve/