The client is a leading manufacturer of systems in the marine and energy sectors. For a major underground natural gas storage project, they needed a certified solution to provide hazardous area protection for the control systems installed on the compressor drives.
To develop an upgraded purged and pressurized solution for a number of sensing and control modules distributed around several large gas engines in an environment of high temperatures and vibration.
Based on the tried and tested MiniPurge platform, Expo designed a custom X purge system that would operate in continuous flow (CF) mode to provide the series purge capacity across the widely distributed control modules. The solution also utilised an enclosure over pressure sensor in place of the conventional relief valve (RLV), as this made balancing the pressures and flows across long pipe lengths much easier to achieve, thus reducing installation and testing time.