Best Purging Systems Type Y and Type Z Purge Units are designed to protect electrical and electronic equipment installed in Class I hazardous locations.

When connected to a protective gas supply, these units regulate, monitor, and maintain the flow of protective gas to the enclosure while providing rapid purging during system start up. This process helps remove potentially hazardous gases from the enclosure before equipment is energized, supporting safe and reliable operation in hazardous environments.

Designed to meet or exceed major industry standards, including NEC (NFPA 70), NFPA 496, EN 50016, and IEC 60079-2 requirements, Purge Units provide an effective solution for enclosure protection in industrial applications.

Each unit features an integrated pressure regulator, needle valve, and ball valve arrangement that enables both precise enclosure pressure control and rapid purging when required. A color-coded differential pressure indicator provides clear visual monitoring of enclosure pressure, while selected vertical and horizontal configurations are equipped with differential pressure switches that can generate alarm or control signals in the event of pressure loss.