Aluminium Condenser Anode in Rectangular Shape



The most cost-effective option for preventing corrosion in salty water environments is the aluminum condenser anode. Its weight is lighter compared to magnesium and zinc anodes, yet it boasts significantly higher current efficiency in saltwater conditions.

This type of anode is manufactured with a galvanized steel pipe core, designed for easy installation on steel studs. It is widely utilized in cathodic protection applications for tank interiors, condenser water boxes, heat exchanger shells, chillers, and cooling water system tubes or tube sheets.

Quality Substrate Material

Formulated using high-purity alloys with low iron content, our aluminum condenser anode is engineered to comply with the GS EP COR 201 standard.

Element GALVALUM III DNV-RP-B401-2011 GS EP COR 201
Zinc (Zn) 2.0% – 6.0% 2.5% – 5.75% 4.75% – 5.75%
Indium (In) 0.01% – 0.02% 0.015% – 0.04% 0.015% – 0.02%
Silicon (Si) 0.08% – 0.2% 0.12% max. 0.06% – 0.12%
Iron (Fe) 0.13% max. 0.09% max. 0.12% max.
Copper (Cu) 0.006% max. 0.003% max. 0.003% max.
Cadmium (Cd) 0.002% max. 0.002% max.
Total Impurities 0.1% max. 0.1% max. 0.1% max.
Aluminum (Al) Remainder Remainder Remainder


Low Driving Voltage

The aluminum condenser anode demonstrates consistent effectiveness in seawater and electrolytes with chloride ions due to its maintained operating potential ranging from -1.05 to -1.10 volts in relation to the saturated calomel electrode (SCE).

Customized Configurations

Below are examples of standard condenser anodes, but we also offer custom shapes, weights, and configurations upon request.

Technical Measurement Performance
Open Circuit Voltage (-V) 1.10 min.
Closed Circuit Voltage (-V) 1.05 min.
Current Capacity 1135 A.h/lbs (2500 A.h/kg)
Current Efficiency 90% min.
Consumption Rate 7.6 lbs/A·y (3.4 kg/A·y)


Much Lighter in Weight

The aluminum condenser anode has a lower density compared to zinc, resulting in a lighter weight and facilitating easier handling during installation.

Strict Quality Control

Our aluminum condenser anode is produced, examined, and tested following rigorous protocols to uphold superior quality, aligning with ISO 9001:2015 standards.

Item No. Anode Dimensions Insert Dimensions Weight
KA-AL-SP13 8″ (203 mm) x 2″ (51 mm) Ø3/4″ (Ø19.05 mm) Pipe N.W G.W
KA-AL-SC13 8″ (203 mm) x 2″ (51 mm) Ø3/4″ (Ø19.05 mm) NPT Coupling 12.5 lbs (5.7 kg) 12.7 lbs (5.8 kg)
KA-AL-SP23 8″ (203 mm) x 4″ (102 mm) Ø3/4″ (Ø19.05 mm) Pipe 23 lbs (10.4 kg) 23.2 lbs (10.5 kg)
KA-AL-SC23 8″ (203 mm) x 4″ (102 mm) Ø3/4″ (Ø19.05 mm) NPT Coupling 23 lbs (10.4 kg) 23.2 lbs (10.5 kg)


Utilizing the ISO 9001:2015 quality management system and strict internal testing protocols, we guarantee the maximum lifespan and performance of our anodes. Each anode is affixed with a distinct serial number for precise quality monitoring and traceability.

Testing Details Chemical Composition Electrochemical Performance Physical Properties
Testing Standard DNV-RP-B401 NACE TM0190 Foundry ITP
Testing Content Chemical Analysis Circuit Potential / Current Capacity / Current Efficiency / Electrical Resistance Dimension & Weight / Surface Finish / Steel Insert
Equipments Optical Emission Spectrometer OBLF QSN 750 Electrochemical Analyzer EPI 200 Calibrated Digital Measuring Devices