Ship sacrificial anode (for ballast tank)
MGDUFF

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 theinternal steel structure of a ships tank that is beneath the surface ballasted seawater. The extent of the corrosion will depend on the nature of the electrolyte, the quality of the steel, methods of construction and other steps that have been taken to limit the process of galvanic activity.
All ships tanks which are ballasted with water are subject to galvanic corrosion and the corrosion will be more aggressive when:
The ballast water is saline because the lower resistivity of the water allows greater galvanic activity.
The paint coatings in the tank are poor and areas of bare steel are exposed.
A cathodic protection system has not been installed.
Bare steel will corrode freely as will areas where coatin