Pipeline Bracelet Anodes for Pipeline Cathodic Protection
Engineered bracelet anodes designed to provide reliable sacrificial cathodic protection for submerged and marine pipeline systems, available in half-shell and segmented configurations for pipelines from 2 to 56 inches in diameter.
PIPELINE BRACELET ANODES
Pipeline Bracelet Anodes for Reliable Corrosion Protection
Pipeline Bracelet Anodes are sacrificial anodes designed to provide cathodic protection to submerged pipeline systems. They are installed around the external circumference of pipelines and gradually consume themselves to help protect the pipeline steel from corrosion.
RELI SLEEVE Pipeline Bracelet Anodes can be manufactured in either half-shell or segmented bracelet configurations. The anode arrangement can be engineered according to pipeline diameter, coating system, installation requirements and cathodic protection design.
Bracelet anodes can be fabricated for pipelines ranging from 2 inch to 56 inch diameter. They can also be produced with square ends for flush fitting with concrete-coated pipelines or with tapered ends to facilitate movement over stringers during pipeline laying operations.
Depending on the project requirement, the anode halves can be designed for welding or bolting together. Electrical continuity can then be established between the bracelet anode and pipeline using suitable cables or steel continuity bars.
With the Reliable Group's background in piping materials and pipeline engineering, RELI SLEEVE provides anode solutions developed around pipeline geometry, installation conditions and project-specific corrosion protection requirements.
Key Features of Pipeline Bracelet Anodes
Half-Shell Construction
Bracelet anodes can be fabricated as half-shell sections designed to fit around the pipeline circumference.
Segmented Configuration
Segmented bracelet configurations can be considered for specific pipeline dimensions and installation requirements.
2" to 56" Pipelines
Designed for pipeline diameters from 2 inch through 56 inch according to project requirements.
Custom End Design
Square ends or tapered ends can be provided according to pipeline coating and laying requirements.
Pipeline Bracelet Anodes Technical Specification
| Product Type | Pipeline Bracelet Anode |
|---|---|
| Protection Method | Sacrificial Cathodic Protection |
| Primary Application | Submerged Pipelines & Pipeline Systems |
| Pipeline Diameter Range | 2 inch to 56 inch |
| Available Configuration | Half-Shell / Segmented Bracelet |
| Available Materials | Aluminium Alloy / Zinc Alloy |
| End Configuration | Square End / Taper End |
| Assembly | Welded or Bolted Anode Halves |
| Pipeline Connection | Cable or Steel Continuity Bar |
| Installation | Pipeline-Specific Installation |
| Dimensions | As per Pipeline Diameter and Approved Project Drawing |
| Design Life | As per Cathodic Protection Design |
| Operating Environment | Marine / Seawater / Submerged Environment |
Available Grades & Standards
Pipeline bracelet anodes can be manufactured using suitable aluminium or zinc sacrificial anode alloys according to the applicable cathodic protection design, project specification and customer requirements.
Galvalum III Equivalent
Aluminium alloy anode composition suitable for applicable cathodic protection requirements.
DNV & ISO
Aluminium anodes can be manufactured according to applicable DNV and ISO requirements where specified.
Alanode
Applicable aluminium alloy requirements can be followed according to approved project specifications.
US Mill Specification
Zinc anodes can be manufactured according to applicable US Mill specification requirements.
ASTM B148-II
Zinc alloy compositions can be supplied according to applicable ASTM requirements.
Customer Specification
Special alloy, dimensional and configuration requirements can be considered against approved drawings and specifications.
Final anode alloy, quantity, dimensions, current output and design life should be established from the approved cathodic protection design and pipeline project specification.
Chemical Composition
Aluminium and zinc sacrificial anode alloys can be supplied according to applicable specifications. The following compositions are the available reference alloy systems supplied for applicable cathodic protection applications.
Aluminium Anodes
Aluminium anodes can be manufactured as per Galvalum III equivalent, DNV, ISO, Alanode standards or customer specifications.
| Element | Galvalum III (Eqv.) | DNV & ISO | Alanode |
|---|---|---|---|
| Zn | 2.0–6.5 | 2.5–5.75 | 0.50–5.00 |
| In | 0.01–0.02 | 0.016–0.04 | 0.005–0.05 |
| Si | 0.08–0.20 | 0.12 Max. | 0.10 Max. |
| Fe | 0.12 Max. | 0.09 Max. | 0.13 Max. |
| Cu | 0.006 Max. | 0.003 Max. | 0.01 Max. |
| Cd | 0.002 Max. | — | — |
| Others (Each) | 0.02 Max. | 0.02 Max. | 0.02 Max. |
| Others (Total) | 0.06 Max. | — | — |
| Al | Remainder | Remainder | Remainder |
Zinc Anodes
Zinc anodes can be manufactured according to applicable US Mill specifications, ASTM standards or customer requirements.
| Element | US Mill Spec | ASTM B148-II |
|---|---|---|
| Al | 0.10–0.50 | 0.005 Max. |
| Si | 0.125 Max. | — |
| Cd | 0.025–0.15 | 0.03 Max. |
| Fe | 0.005 Max. | 0.0014 Max. |
| Pb | 0.006 Max. | 0.003 Max. |
| Cu | 0.005 Max. | 0.002 Max. |
| Zn | Remainder | Remainder |
Aluminium Anode Electrochemical Characteristics
The following electrochemical characteristics are based on the aluminium anode data supplied for seawater operation at 23°C.
| Operating Environment | Seawater at 23°C |
|---|---|
| Reference Electrode | Ag / AgCl |
| Open Circuit Potential | More negative than −1.10 V |
| Closed Circuit Potential | More negative than −1.05 V w.r.t. Ag / AgCl reference electrode |
| Anode Capacity | 2,550–2,750 A·hr/kg |
Actual cathodic protection performance depends on alloy selection, pipeline geometry, coating condition, seawater characteristics, current demand and the approved cathodic protection design.
Pipeline Bracelet Anode Applications
Subsea Pipelines
Bracelet anodes provide sacrificial cathodic protection for submerged pipeline systems.
Offshore Pipelines
Designed for pipeline systems operating in demanding marine and offshore environments.
Pipeline Installation
Tapered-end configurations can support easier movement over stringers during pipeline laying operations.
Concrete-Coated Pipelines
Square-end bracelet anodes can be configured for flush fitting with concrete-coated pipelines.
Pipeline Rehabilitation
Replacement or additional bracelet anode configurations can be developed according to project requirements.
Custom Pipeline Systems
Anode geometry, assembly and connection arrangements can be developed around specific pipeline requirements.
Advantages of Pipeline Bracelet Anodes
About RELI SLEEVE
Reliable Group Experience Since 1975
RELI SLEEVE is part of the Reliable Group, which has served the Oil & Gas, Petrochemical, Power, Water, Infrastructure and Process Industries for more than five decades. Beginning as a trading business supplying steel pipes, plates and industrial raw materials, the Group evolved into an international organization involved in trading, importing, manufacturing, exporting and engineering solutions.
The Group's flagship Reliable Pipes & Tubes Ltd. supplies stainless steel, carbon steel, alloy steel and special steel products including pipes, tubes, fittings, flanges, plates, coils, bars and industrial components. RELI SLEEVE was established as a specialized division for corrosion protection and internal coating solutions, serving Oil & Gas companies, EPC contractors and pipeline operators.
Building on this foundation, RELI SLEEVE has expanded into advanced anode products and cathodic protection systems. This development strengthens the Group's ability to provide broader pipeline integrity and asset protection solutions for customers in India and international markets.
Pipeline Bracelet Anodes FAQ
Pipeline Bracelet Anodes are sacrificial anodes installed around pipelines to provide cathodic protection and help reduce corrosion of submerged pipeline steel.
RELI SLEEVE Pipeline Bracelet Anodes can be fabricated for pipelines from 2 inch to 56 inch diameter, according to project requirements.
Bracelet anodes can be manufactured as half-shell or segmented configurations, depending on pipeline diameter, installation requirements and approved design.
Square-end configurations can be used for flush fitting with concrete coating, while tapered ends can facilitate easier movement over stringers during pipeline laying operations.
The bracelet anode halves can be designed for welding or bolting together, depending on the approved project installation arrangement.
Electrical continuity can be established using suitable cables or steel continuity bars according to the approved cathodic protection and installation design.
Yes. Pipeline diameter, anode dimensions, configuration, end design, assembly and connection arrangements can be developed according to customer drawings and project specifications.
Aluminium and zinc sacrificial anode systems can be considered according to the operating environment and approved cathodic protection design.
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