Vacuum breakers

Spirax Sarco vacuum breakers are used to break vacuum conditions in steam systems and associated vessels when steam condenses during shutdown or cooling. They help protect plant equipment from distortion, damage or operational upset caused by the negative pressure that can develop as steam volume collapses. This makes them relevant wherever shutdown behaviour, drainage and vessel integrity are closely linked rather than treated as separate concerns. Vacuum breakers are often selected alongside venting, drainage and other pipeline ancillaries to build a more stable and safer steam installation. Typical use cases include vessels, heat exchangers and other steam spaces where collapse or delayed drainage would create avoidable mechanical stress.