MGDuff Ballast Tank Cathodic Protection
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SHIP'S BALLAST TANKS USING SACRIFICIAL ANODES 1 Timberlaine Estate, Gravel Lane, Quarry Lane, Chichester, West Sussex. P019 8PP

M G Duff has been one of the world leaders in the design and supply of Cathodic Protection Systems to the Shipping Industry since 1954. This international service includes Design, Inspection and Testing of every type of Marine Cathodic Protection System, and is supported with the widest range of anode types, available at strategic locations throughout the world. Corrosion will occur to any steel surfaces immersed in a common electrolyte such as in the internal steel structure of a ships tank that is beneath the surface ballasted seawater. The extent of the corrosion will depend on the...

MGDuff Ballast Tank Anodes are simple in design, generally a block casting with a central steel round bar insert which are either double cranked to facilitate weld fixing, or straight for use with reusable clamps which avoid the need for "Hot Work" in the tank space. Other configurations are available such as flat bar inserts drilled to accommodate specific hole centres and anodes with integral clamps such as "pitguard" anodes designed for easy installation in cramped spaces such as double bottoms. The Pitguard anode will lie flat on the tank bottom clamped at one end to a steel frame....

MG Duff have many years of practical experience on the installation and positioning of sacrificial anode systems and will prepare suitable system design and installation drawings to meet every design criteria. The type, number and position of anodes required depends upon several factors and the following information is required to determine the cathodic protection => The surface area of the tank or detailed tank drawings from which this can be => The type of coating, its coverage and anticipated breakdown over the life of => The required life of system (In general not to be less than 4...