MMO Linear Anodes for Distributed Cathodic Protection
HELE manufactures flexible MMO linear anode assemblies for long-run ICCP systems, combining MMO/Ti active wire, a continuous copper conductor, conductive coke breeze and a protective fabric structure for distributed current delivery.
82–1312 mA/m
Standard Outputs
Custom Output
Available on Request
25-Year
Standard Design Life
Custom Specs
Length & Cable Configuration
Share the protected structure, required current output, installation environment, active length, cable requirements and design-life target.
What Is an MMO Linear Anode Assembly?
An MMO linear anode is a flexible packaged ICCP anode designed to distribute protection current continuously along an extended installation length.
MMO/Ti Active Wire
Grade 1 titanium wire with IrO₂/Ta₂O₅ MMO coating provides the electrochemically active anode element.
Continuous Copper Conductor
The internal copper conductor carries current along the installation length and helps control longitudinal resistance in long-run systems.
Conductive Coke Breeze
Calcined petroleum coke surrounds the active assembly to provide a conductive environment for current discharge.
Protective Fabric System
Fabric and wear-resistant outer braiding retain the coke breeze and protect the assembly during transport and installation.
Engineering Note
The MMO/Ti wire is the active anode; the continuous copper conductor provides longitudinal current transmission. The two are connected at defined intervals according to the electrical design.
Standard & Custom Linear Anode Output Ratings
Choose the linear output according to total CP current demand, installation length and system design. HELE also supports project-specific current outputs.
| Standard Output | Metric Output | Standard Design Life |
|---|---|---|
| 25 mA/ft | 82 mA/m | 25 Years |
| 100 mA/ft | 328 mA/m | 25 Years |
| 300 mA/ft | 984 mA/m | 25 Years |
| 400 mA/ft | 1312 mA/m | 25 Years |
Custom Output Available
Intermediate or project-specific output ratings, including 656 mA/m (200 mA/ft), can be reviewed according to the required CP current, active length and electrical configuration.
Design-Life Basis
The 25-year design life applies to the specified standard configuration and rated design basis. Final output and life requirements should be confirmed for the actual project conditions.
MMO Linear Anode Technical Data
Standard construction and electrical parameters can be adjusted according to current output, installation environment, cable configuration, coil length and project design requirements.
| Parameter | HELE Supply Basis |
|---|---|
| MMO Coating | IrO₂ / Ta₂O₅ |
| Titanium Substrate | Grade 1 |
| Standard Current Output | 82 · 328 · 984 · 1312 mA/m |
| Custom Current Output | Available |
| Standard Design Life | 25 years |
| Flexible Anode OD | 40 ± 2 mm |
| Internal Copper Conductor | ≥10 mm² or project-defined |
| Cable Insulation | XLPE/PVC or project-specific |
| Alternative Cable | PVDF/HMWPE for selected chemical / chloride environments |
| Typical Joint Spacing | 3 m ±5%, subject to project design |
| Contact Resistance | ≤0.009 Ω |
| Coke Breeze Content | ≥98% |
| Coke Particle Size | 0.1–1.0 mm |
| Coke Volume Resistivity | ≤0.05 Ω·m |
| Typical Product Weight | 1.25–1.35 kg/m |
| Coil Length | Up to 500 m standard reference; custom length available |
Specification Note
Wire diameter, conductor size, connection spacing, cable insulation and coil length can be adjusted according to current output, installation environment and project specification.
Custom MMO Linear Anodes Built Around Your CP Design
Current output, active length, conductor size, cable configuration, connection spacing and reel length can be configured around the protected structure, installation environment and cathodic-protection design.
Current Output
Active Length
Conductor Size
Cable Configuration
Connection Spacing
Reel / Coil Length
Where MMO Linear Anodes Are Used
Flexible linear anodes are designed for ICCP systems where distributed current delivery is required along pipelines, tank bottoms or complex buried structures.
Long-Distance Buried Pipelines
Installed parallel to oil, gas or water pipelines to provide distributed cathodic-protection current along extended routes.
Aboveground Storage Tank Bottoms
Installed beneath tank bottoms in engineered linear, concentric or other distributed layouts according to the CP design.
Dense Underground Piping Networks
Suitable for stations, power plants, chemical plants and other locations where multiple buried structures require controlled current distribution.
Installation Note
Routing, spacing, feed points and total active length should be defined by the cathodic-protection system design.
Connection, Splice & Assembly Verification
Conductor & Cable
Conductor size, cable construction and continuity are checked against the confirmed assembly specification.
Anode-to-Cable Connection
MMO/Ti wire and conductor connections are reviewed for the required electrical and mechanical integrity.
Sealing & Mechanical Protection
Connection areas, fabric layers and outer braiding are checked for assembly integrity before shipment.
Electrical Inspection
Continuity, connection resistance and project-specific electrical checks can be included in the agreed inspection scope.
Documentation is provided according to the agreed purchase and inspection scope.
Linear Anode vs Wire, Ribbon & Mesh Ribbon
Use the anode form that matches the required current distribution, installation geometry and project configuration.
| Product | Main Selection Direction | Link |
|---|---|---|
| MMO Linear Anode | Complete distributed-current assembly for long-run ICCP | — |
| MMO Wire Anode | Flexible MMO active electrode | View Product → |
| MMO Ribbon Anode | Flat distributed electrode geometry | View Product → |
| MMO Mesh Ribbon | Open distributed geometry with greater exposed area | View Product → |
MMO Linear Anode FAQs
What is an MMO linear anode?
Why is an internal copper conductor used?
What standard current outputs are available?
Can HELE supply a 656 mA/m linear anode?
What is the standard design life?
What information is required for a quotation?
Request a Custom MMO Linear Anode Review
Send your cathodic-protection design inputs so HELE can review the current output, active length, conductor, cable configuration and assembly requirements before quotation.
Current Output & Design Life
Active / Total Length
Cable & Connection
Installation Environment & Drawing
Email: sales@heletitanium.com
Address: Titanium Valley, Baoji City, Shaanxi Province, China