Singapore is a major centre for the conversion of vessels into FPSOs and FSOs, frequently involving the installation of Cathelco MGPS and ICCP systems. Strategically based in this key marine engineering location, Cathelco S.E.A. provides sales and technical support for these important projects.


FPSOs usually have numerous seawater intakes serving engine cooling, product processing, fire fighting and a range of auxiliary services. These can be protected against blockages caused by bio-fouling using the Cathelco system.

Seachest Installation

Copper and aluminum anodes can be mounted in seachests if the scheduled dry docking period for the FPSO is less than 5 years, assuming that there is sufficient space availability.

Strainer Installation

With strainer mounted systems the anodes can be changed at any time without the need for dry docking. This is an advantage for FPSOs and FSOs which are generally on station for prolonged periods of time.

Deck mounted electrolysis tanks

These electrolysis tanks are designed with pipework to distribute the dosed water 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.

ICCP systems for FPSOs and FSOs

As FPSOs and FSOs are generally at sea for many years without dry docking, hull corrosion protection takes on particular importance. On a conventional ship there may be a 15% paint loss over 5 years, but on an FPSO paint loss may exceed 80% over a 20 year period.
One of the key advantages of Cathelco C-Max anodes is that they are diver changeable and can be replaced at sea.
Cathelco have considerable experience in the design of ICCP systems for FPSOs and FSOs to provide effective and reliable corrosion protection over extended time scales.
The systems can incorporate the latest Quantum control panels which store comprehensive data about the performance of the equipment.
On forward the aft systems, the panels operate in a ‘master’ and ‘slave’ configuration, enabling the whole system to be controlled by the aft panel, saving time and effort for engineers.