Half Shell Aluminum Bracelet Anode (Square End, Welded)
This indium-activated aluminium bracelet anode is specifically designed for the cathodic protection of submarine/offshore pipelines. Assembled as two half-shells, the anodes fit the pipe as a bracelet and shall be installed by thermit-welding. With square end, our half-shell aluminium bracelet anodes are suitable for flush fitting with concrete coating.
Description
Quality Substrate Material
Casted in low-iron, high-purity alloys, our bracelet anode is designed as per the standard of ISO, NACE, DNV.
| Element | GALVALUM III (Al – Zn – In – Si) | DNV – RP – B401 – 2011 (Al – Zn – In) | GS EP COR 201 (Al – Zn – In) |
| Zinc (Zn) | 2 – 6% | 2.5 – 5.75% | 4.75 – 5.75% |
| Indium (In) | 0.01 – 0.02% | 0.015 – 0.04% | 0.015 – 0.02% |
| Cadmium (Cd) | — | 0.002% Max. | 0.002% Max. |
| Silicon (Si) | 0.08 – 0.2% | 0.12% Max. | 0.06 – 0.12% |
| Iron (Fe) | 0.13% | 0.09% Max. | 0.12% Max. |
| Copper (Cu) | 0.006% Max. | 0.003% Max. | 0.003% Max. |
| Others Total | 0.10% Max. | 0.10% Max | 0.10% Max. |
| Aluminum (Al) | Remainder | Remainder | Remainder |
Low Driving Voltage
This aluminium bracelet anode provides a stable performance in seawater and electrolytes containing chloride ions as its operating potential is kept between -1.05 to -1.10 volts relative to saturated calomel electrode(SCE).
| Operating Potential (-V) | 1.05 – 1.1 |
| Current Capacity | 1135 A.h/lbs (2500 A.h/kg) |
| Consumption Rate | 7.6 lbs/A·y |
| Current Efficiency | 90% Min. |
| Solubility | Solute Uniformly |
Strict Quality Control
By conforming to ISO 9001:2015 standards, our aluminum bracelet anode is manufactured, inspected, and tested in accordance with stringent procedures to ensure high quality.
Customized Configurations
The overall dimension of the anodes are usually manufactured to coincide with the overall dimension of the pipe. A range of standard bracelet anodes are illustrated below, custom-made configurations are available upon request.
| Model | Bracelet Size | Anode Weight | Gap | |||
| Inner Dia. | Length | Thickness | Net Weight | Gross Weight | ||
| JA – AL – BL01 | 12.8” (325mm) | 19” (485mm) | 2” (50mm) | 139.5 lbs (63 kg) | 152.5 lbs (69 kg) | 2” (50mm) |
| JA – AL – BL02 | 18” (459mm) | 15.7” (400mm) | 2” (50mm) | 161.5 lbs (73 kg) | 184 lbs (83.5 kg) | 4” (100mm) |
| JA – AL – BL03 | 18” (459mm) | 11.8” (300mm) | 3.5” (90mm) | 241 lbs (109 kg) | 263 lbs (119 kg) | |
| JA – AL – BL04 | 48.7” (1236mm) | 27” (685mm) | 3” (75mm) | 1212 lbs (550 kg) | 1238 lbs (561 kg) | |
| JA – AL – BL05 | 48.7” (1236mm) | 15.7” (400mm) | 3” (75mm) | 692 lbs (314 kg) | 726 lbs (330 kg) | |
