sacrificial anode


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sacrificial anode

[¦sak·rə‚fish·əl ′an‚ōd]
(physical chemistry)
A protective coating applied to a metal surface to act as an anode and be consumed in an electrochemical reaction, thereby preventing electrolytic corrosion of the metal.

sacrificial anode

A metal plate used in cathodic protection (i.e., the protection from corrosion) of piping or other equipment to which it is electrically connected. This metal plate must be more corrodible than the piping to which it is attached.
References in periodicals archive ?
Traditional, tank-style water heaters are installed with at least one sacrificial anode rod, whose sole purpose, as the name implies, is to attract corrosive elements in the water and prevent the tank's steel lining from deteriorating.
Solutions to these problems include flexible condenser tubes, suspended condenser tubes that vibrate during normal operation, wide water spray nozzles, condenser tube coatings, sacrificial anodes, and sump water purging.
To combat this, manufacturers equip the water heaters with a sacrificial anode rod.
The sacrificial anode, as the name implies, is put in place to be lost.
Attempts to apply sacrificial anode CP to bridge structures have met with limited success, because conventional sacrificial anode alloys operate at a low fixed potential, and the conductivity of concrete often does not permit satisfactory current output.
In the chemistry of corrosion, the zinc becomes the sacrificial anode, and the cylinder metal(s) the protected cathode.
Often the metal is protected against corrosion by the use of a sacrificial anode, impressed current, or a combination of the two.
Tenders are invited for Providing sacrificial anode cathodic protection system with monitoring mechanism in fire water tank no 1 at kandla foreshore terminal
It's an entirely different concept; it does not need a sacrificial anode to prevent corrosion because it has a plastic tank, and it has other desirable features, which you can check out online: www.
Gooch, who in the '90s was instrumental in the development of the first sacrificial anode for use in reinforced concrete, says what clients require when concrete failure occurs is a robust and tailored solution, something he points out that Structural is adept at providing.
Protective techniques are also represented, including sacrificial anode systems and impressed current systems.
Impressed current cathodic protection (ICCP) systems or sacrificial anode systems are used to change the potential.