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MGPS ICAF antifouling anodes in strainer filter house lid

Antifouling anodes in strainers

Does your antifouling system need a boost without entering dry-dock? Cathwell mud box anodes can be retrofitted while at sea. They are easy to install and easy to replace.

Antifouling boosting effect

Strainer mounted antifouling system have the advantage of being replacable during vessel's operation.

When MGPS/ICAF antifouling system is installed in brand new vessels, the anodes should preferably be mounted in the sea chests. Such location ensures that the seawater is treated prior to entering the seawater system.

Antifouling boost effect

If experience show that further antifouling effect should be added, MGPS/ICAF antifouling anodes can be fitted in the seawater strainers/mud boxes, and eventually in cross-over tanks, without having to enter dry-dock. Design of MGPS/ICAF anodes are based on water flow and requested operational lifetime. The anodes come with specially adapted cofferdams for installation in the strainer lid. The anodes can either be energised from existing control panels, or connected to a new CathFlow® control panel.

Benefits: The antifouling anodes are easy to install in the filter house lid when anode renewal becomes necessary, independently of dry-docking.

Design life time. Typical design life time of the anodes are 1 to 2 years, mainly depending on the seawater flow.

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MGPS/ICAF antifouling systems for ships


The anodes are bolted through the mud box lid to a cofferdam made of POM (polyoxymethylene). In some cases new lids are prefabricated with antifouling anodes installed, but anode can also be installed in existing lids. The arrangement is compatible with various types of filters. In order to avoid corrosion attacks on the filter, the filter has to be properly connected with the strainer/mud box body. In strainers with non-metallic filters, a separate cathode may be required.

MGPS ICAF anodes assembly in strainer lid
MGPS ICAF anodes assembly in strainer lid

Cathwell co-operates with John Gjerde AS for hi-end welded plate and custom-made filters up to DN 1000.

See differennt models of antifouling anodes and accessories in webshop



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