Aluminum Bracelet Anode with Tapered End and Welded Connection
Our Half Shell Aluminum Bracelet Anode is designed for cathodic protection in submarine and offshore pipelines. Featuring indium activation and a unique half-shell design, these anodes are installed using thermit-welding for durability. Their tapered ends allow for smooth movement during pipeline laying, ensuring effective protection throughout.
Description
This aluminum bracelet anode, activated with indium, is custom-built for safeguarding submarine/offshore pipelines through cathodic protection methods. Consisting of two half-shells, these anodes are crafted to encircle the pipe like a bracelet and require thermit-welding for installation. Featuring tapered ends, our half-shell aluminum bracelet anodes are designed to facilitate smooth movement along stringers during the laying of pipelines.
Quality Substrate Material
Crafted from high-purity alloys with minimal iron content, our bracelet anode adheres to the quality standards set by ISO, NACE, and DNV.
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 bracelet anode demonstrates reliable performance in seawater and electrolytes with chloride ions due to its maintained operating potential ranging from -1.05 to -1.10 volts concerning the saturated calomel electrode (SCE).
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) |
Customized Configurations
The dimensions of the anodes are typically tailored to match those of the pipe. Custom configurations can be provided upon request.
Testing
Our company utilizes the ISO 9001:2015 quality management system alongside strict internal testing protocols to guarantee the longest possible lifespan and top-notch performance of our anodes. Each anode is assigned a distinct serial number to facilitate quality tracking.
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 |