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FPSOs generally have numerous seawater intakes serving engine cooling, product processing, fire fighting and a range of auxiliary services which can include provision of a potable water supply. It is essential that all of these functions are protected by an effective and reliable pipework antifouling system.
Copper and aluminium anodes can be mounted in seachests if the scheduled drydocking period for the FPSO is less than 5 years, assuming there is sufficient space availability.
The advantage of strainer mounted systems is that the anodes can be changed at any time without the need for drydocking.
Deck mounted electrolysis tanks are designed with pipework to distribute the dosed seawater to pumps or seachests. Copper ions are carried throughout the seawater pipework system eliminating blockages caused by barnacles and mussels. Controls can be linked to inlet valves or pumps to automatically control the dosage between seachests which are ’in use’ or ‘out of use’. The units are specifically designed for each application and supplied as ‘turn key’ modules, skid mounted and ready for installation.