Zinc Anode
Sacrificial Anodes
Zinc alloy anodes are used for corrosion protection of steel and aluminum alloy equipment in seawater, including ship hulls, ballast tanks, heat exchanger condensers, pipes, etc.
Description:
Zinc alloy anode is used for corrosion protection of steel and aluminum alloy equipment in seawater, including ship hulls, ballast tanks, heat exchanger condensers, pipes, etc.
High-purity zinc anode (type II) can be used in chlorine-containing soil environment to protect structures, such as the protection of PCCP (Prestressed Concrete Cylinder Pipe).
Compared with aluminum anode and magnesium anode, the driving voltage provided by zinc anode is the lowest. Therefore, it is not easy to lead over protection, thus avoiding the peeling of the anti-corrosion layer and hydrogen embrittlement.
Application Field:
Ship hulls, ballast tanks, heat exchanger condensers, pipes, etc.
Features:
- Zinc anode accords with ASTMB418 and MIL-A-18001K standards. Raw materials of 99.995% purity are selected. Through strict production and inspection process, our products meet or exceed the requirements of international standards.
- Conventional zinc anodes are not suitable for use in high temperature environments such as heat exchangers and high temperature pipes. To solve this challenge, TopCorr has developed a specially formulated zinc anode (Type III) that can be applied in media environments from 50°C to 70°C with a potential negative to -900mV (vs. Ag/AgClref.), and the current efficiency exceeds 770Amp-hrs /kg. Through tests and field applications,it proved that the anode can operate effectively in a high temperature environment without polarity reversal.
- As a high-voltage conductor, zinc has a larger electrochemical negative potential than other metals. Therefore, it is less prone to overprotection, resulting in coating peeling and water damage to high-strength steel.
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