Product Overview
IECEx, ATEX & FM certified protection systems for Zone 21/22 & Class II Div 1 & 2 dust applications
Features
- Global approvals
- Pressurization of enclosures up to 5.5m³
- Stainless steel panel construction
Expo’s MiniPurge dust systems provide a pressurization only protection solution for electrical enclosures and other equipment installed in Zone 21/22 or Class II Div 1/2 hazardous environments.
International standards require that the enclosure is first cleaned to remove any accumulations of dust prior to operation. Once the enclosure is free of dust and sealed, the MiniPurge DP can be started. After successful pressurization, the equipment can be energised either automatically or manually, depending on the hazardous area requirements.
Hazardous area classification
Classification of equipment protected
Purge type
Control of power to enclosure
The system comprises:
- Control Unit (CU) – The CU contains the pneumatic logic to monitor and control air pressure and provide the system outputs.
- Relief Valve (RLV) –provides over-pressure protection to the enclosure