A Bracelet Type Aluminum Anode is a sacrificial anode specifically designed for the cathodic protection (CP) of subsea pipelines, offshore structures, and tubular components. The anode consists of two semi-cylindrical aluminum alloy segments (half-shells) that are assembled around a pipe, forming a “bracelet” configuration.
Bracelet Type Aluminum Anode
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Key Features
- 360° Protection: Uniform current distribution around pipelines
- High Current Capacity: Suitable for large offshore structures
- Lightweight & High Efficiency: Reduced installation effort and longer life
- Strong Mechanical Fixing: Secure attachment via clamps or welding
- Stable Marine Performance: Reliable in seawater environments
- Pre-Fabricated Design: Easy installation offshore or onshore
Material Composition (Typical)
- Aluminum (Al): Balance
- Zinc (Zn): 2.5% – 5.5%
- Indium (In): 0.015% – 0.04%
- Iron (Fe): ≤ 0.09%
- Silicon (Si): ≤ 0.10%
- Copper (Cu): ≤ 0.01%
Structure
- Two half-shell aluminum anodes
- Steel core inserts (for mechanical strength)
- Fastening system (bolts, straps, or welding pads)
Types
- Stand-off Bracelet Anodes
- Flush-Mounted Bracelet Anodes
- Tapered or segmented designs
- Custom designs for specific pipe diameters
Applications
- Subsea oil & gas pipelines
- Offshore platforms and jackets
- Risers and tubular structures
- Marine pipelines and cables
- Coastal and subsea engineering projects
