ANODES
Anode Selection for Long-Term Equipment Protection
All Cathodic Protection (CP) systems use either galvanic (sacrificial) or impressed current (ICCP) anodes.
Within each category, the material is chosen based on the environment (soil, seawater, concrete) and required current capacity.
Using anodes in CP systems ensures reliable, continuous, and cost-effective corrosion protection, extending equipment life, reducing maintenance costs, and increasing operational safety.
Sacrificial Anodes
Impressed Current Anodes
Sacrificial Anodes
ALUMINUM ANODES
Aluminum anodes are widely used for cathodic protection in seawater environments due to their lightweight and high efficiency.
• High electrochemical efficiency
• Lightweight compared to other metals
• Ideal for seawater and brackish environments
• Cost-effective and easy to install
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MAGNESIUM ANODES
Magnesium anodes provide the highest driving voltage, making them ideal for protecting steel in soil or freshwater environments.
• Strong driving potential for cathodic protection
• Best for soil and freshwater applications
• Highly reactive, providing rapid protection
• Requires careful monitoring
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ZINC ANODES
Zinc anodes deliver dependable, long-lasting protection in seawater, offering stable performance and reliability for marine environments.
• Reliable in seawater environments
• Lower driving voltage than magnesium
• Long-lasting and predictable performance
• Environmentally safe and non-toxic
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Impressed Current Anodes
MIXED METAL OXIDE
MMO anodes are durable titanium-based anodes coated with mixed metal oxides, used for long-term cathodic protection systems.
• Extremely long service life
• Low consumption rate
• Suitable for high-current applications
• Resistant to corrosion and mechanical damage
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MMO MESH RIBBON ANODE
This MMO anode is a mesh ribbon for concrete structures, ensuring uniform current distribution and durability in harsh environments.
• Flexible design for concrete reinforcement
• Uniform current distribution
• Long lifespan with minimal maintenance
• Ideal for bridge decks and marine structures
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FLEXIBLE LINEAR ANODE
Flexible linear anodes are used for pipeline and tank protection, offering easy installation and consistent current output along their length.
• Flexible for complex geometries
• Uniform protection over long distances
• Lightweight and easy to install
• Durable in soil and submerged conditions
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HIGH SILICON CAST IRON
High silicon cast iron anodes are robust, corrosion-resistant impressed current anodes for soil and freshwater environments.
• High mechanical strength
• Long service life in soil applications
• Resistant to chemical attack
• Cost-effective for large-scale systems
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GRAPHITE ANODES
Graphite anodes are economical, impressed current anodes that offer stable performance but are more brittle than other types.
• Economical and widely available
• Good conductivity for impressed systems
• Suitable for soil and freshwater
• Brittle and prone to mechanical damage
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Corrosion Management
Corrosion Prevention
Anodes provide electrical current to the structure, preventing metal loss and corrosion on pipelines, tanks, platforms, or steel-reinforced concrete. They stop rust before it starts by shifting the structure’s potential to a protected state.
Extended Service Life
By mitigating corrosion, anodes extend the lifespan of expensive infrastructure; pipelines, tanks, and marine structures can last decades longer when properly protected.
Cost Savings
Using anodes significantly reduces maintenance and replacement costs compared to repairing or replacing corroded assets. The investment in CP pays off many times over through avoided failures.
Versatility of Application
Anodes can be used in almost any environment (soil, seawater, freshwater, or concrete) and on assets of any size, from small tanks to offshore platforms.
Continuous Protection
Both galvanic and impressed current anodes provide continuous, automatic protection 24/7, regardless of external weather or operating conditions.
Compatibility with Different Structures
Anodes can protect buried, submerged, or immersed metallic structures, including: Pipelines, Storage tanks, Jetties and docks, Offshore platforms & Reinforced concrete.
Easy Monitoring and Control
In impressed current systems, the output from the anodes can be easily adjusted and monitored using rectifiers, allowing precise control of protection levels.
Environmentally Safe Technology
Cathodic protection with anodes is a well-established, standards-based technology (recognized by NACE/AMPP, ISO, ASTM) that offers environmentally safe corrosion control.