Ship sacrificial anodes
... copper ions. Standard sizes range from 60mm to 120mm in diameter and 100mm to over 1,000mm length. The photograph shows the anode fitted with a flange mounting arrangement.
The purpose of aluminium anodes is to assist in anti-fouling process through the production of aluminium hydroxides when protecting steel pipework. They also produce a cupro-aluminium film which acts as an anti-corrosive ...
... requirement for anti-fouling and corrosion suppression, but only space to fit one anode in a strainer, this dual purpose design provides an effective solution. Dual purpose anodes can be produced with ...
These anodes are used on vessels such as patrol craft, tugs and fishing vessels which have small seachests with relatively low sea water flows.
Small and versatile, Omni anodes have been developed for fitting in the smaller types of seachests and strainers found on workboats and luxury yachts. Designed with integral cathodes, they can be fitted in plastic strainers, ...
These miniaturised anodes have been developed for installation in the strainers of luxury yachts and work boats. Their compact design means they can be used in a wide range of applications.
Zinc Hull Anode 2.1 Kgs Nom Net Weight 200 mm Bolt Centres
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A ships sacrificial anode protects the hull from corrosion. NauticExpo offers aluminum, zinc, magnesium and other types of anodes.Applications
Such anodes fight ballast tank and hull corrosion. They are usually mounted on areas prone to corrosion, for example, between the propeller and the rudder.Technologies
When two metals are in contact under water, the less noble has a lower electrical potential than the more noble. This creates an electrical current from the more to the less noble metal, driving the latter's ions into the water, causing it to corrode. Since the sacrificial anode is less noble than the metal parts of the ship, it protects them by corroding in their place.How to choose
Choice will depend on the anode's weight, size, shape and constituent material.
- No maintenance necessary
- Must be replaced every one to five years
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