Purge & Pressurization Systems for Electrical Enclosures
Expo is a world leader in the design and manufacture of purge & pressurization systems for electrical enclosures, analysers and other equipment.
All electrical equipment used in hazardous areas is required to be certified using a recognised protection method. While users may have a choice of methods for protection, purge and pressurization (Ex p) is the simplest and most flexible solution. Download our Purge Systems brochure here.
Read more here in our whitepaper: "Purge and Pressurisation - Advantages, Methods and Guidelines."
Use the table below to choose a system suitable for your application
Class I Div 1
Class I Div 2
Class II Div 1
Class II Div 2
* Please note:The SmartPurge II is approved for Class & Zone for use in N.America.

Custom Purge Systems
Our Mini-Purge and SmartPurge platforms are very flexible, and can work across a very wide range of application areas. However, if your application needs something different, then Expo can develop a custom solution.
Please call +44 (0) 20 8398 8011 to speak to one of our purge and pressurization experts or contact us.