Purge Controller Systems

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 system 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


Safe Area

Hazardous area classification

ATEX/IECEx Zone 1 & 21
  Class I  Div 1​ & Class II Div 1 

ATEX/IECEx Zone 2 & 22 
Class I Div 2 & Class II  Div  2​ 

Industrial Environment

MiniPurge system (Pneumatic control)


SmartPurge (Electronic control)

SmartPurge II

SmartPurge II


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 contact us for more details.

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