Suez Oil Company (SUCO), the largest refinery in Egypt, is implementing Foundation Fieldbus technology to expand its production. Currently, the refinery is producing 146,000 barrels/ day at the Ras Budran facility on the Sinai Peninsula. Since April, the amplified system has been operating with the Smar System302 (Foundation Fieldbus process control and automation) to control three sand filters on the saltwater injection plant. In this new implant phase, System302 will be added to the control loops to added to the control loops to monitor pressure, temperature and the de-aeration level of the water injection plant. The facility previously used pneumatic controllers. SUCO management decided to invest in Foundation Fieldbus when they recognised that the maintenance cost for the aging pneumatic system was increasingly high and many components were now out of production.