MARINE ICCP · OFFSHORE, JETTY & SEAWATER STRUCTURES

MMO ICCP Anodes for Marine & Offshore Structures

Project-configured MMO tubular, disc, rod and custom anode assemblies for fixed marine assets exposed to seawater, tidal zones and demanding installation conditions.

Marine anode current, shield geometry and placement are structure-specific. Submit the CP design, seawater conditions, mounting detail and cable-protection plan for supply review.

Marine and offshore structure protected by MMO ICCP anodes
Fixed marine structures
Tubular, disc & rod
Mounting & shield review
Cable-sealing control
APPLICATION BASIS

Marine ICCP Applications by Structure Type

Fixed marine ICCP systems can protect jetties, piers, offshore jackets, seawalls, intake structures, sheet piling and other immersed steel. The anodes discharge current into seawater while a controlled power source, reference electrodes and monitoring arrangement maintain the project-defined protection criteria.

This page addresses fixed structures rather than automatically treating ship-hull systems as equivalent. Mounting loads, wave and current exposure, burial or shielding, cable routes, diver access, coatings and local current distribution must be reviewed for each asset.

Cathodic protection engineer reviewing marine ICCP drawings
SELECTION FRAMEWORK

Select a Marine Anode Mounting Arrangement

Choose the anode form together with its mounting, dielectric shielding, cable protection and inspection strategy.

01

Jetty and pier piles

Review distributed mounting around piles, pile groups, tidal exposure, coating interfaces and inspection access.

02

Offshore structures

Coordinate anode assemblies with jackets, risers, subsea frames, installation loads and remote monitoring.

03

Seawalls & sheet piling

Evaluate local current distribution, coating condition, cable routing and anode protection from impact.

04

Intakes & water systems

Account for flow, screens, debris, nearby materials, access and interaction with anti-fouling systems.

ANODE OPTIONS

Tubular, Disc and Rod Anode Mounting Options

The selected assembly should combine electrochemical duty with a mechanically credible mounting and cable-sealing design.

MMO Tubular Anode

Best considered when: a robust tubular element is mounted on a stand-off, sled, frame or project-specific support.

Confirm: tube geometry, coating/loading, support, dielectric shield, cable exit and handling loads.

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MMO Disc Anode

Best considered when: a compact low-profile assembly suits localized or distributed mounting on a designed support.

Confirm: disc size, mounting stud/flange, shield, cable seal, recess and inspection access.

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MMO Rod Anode

Best considered when: a slender element suits frames, intakes or localized marine mounting under a defined duty.

Confirm: rod dimensions, holder, insulation, cable connection, support and flow exposure.

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Custom Assembly

Best considered when: the project requires a sled, frame, guard or integrated mounting that standard forms do not provide.

Confirm: loads, materials, isolation, fabrication drawing, lifting, cable armor and inspection method.

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Marine ICCP system with MMO anodes, shields and reference electrodes
CONFIGURATION LOGIC

Shields, Coating Interfaces & Local Current Distribution

High local current density near an anode can affect coating and distribution. The marine CP design may use dielectric shields, stand-off distance, zoning and controlled anode placement to manage this interface. Reference-electrode locations and control philosophy should represent the protected zones rather than simply being placed near the anode.

Design control: Do not publish or reuse a generic seawater current density, output or shield size. Final values depend on structure geometry, coating condition, water properties and CP design.

ENGINEERING MATRIX

Marine ICCP Anode & Mounting Inputs

The following items define the supply basis. Final values are confirmed by the cathodic-protection designer and project review.

Decision Why it matters Evidence to provide
Structure and zones Defines current distribution and mounting locations. General arrangement, immersed area, zones and coating condition.
Water environment Conductivity, temperature and flow affect operation. Salinity/conductivity, temperature, depth, tidal range, velocity and fouling.
Electrical duty Controls anode size, loading, cable and zones. Design current, duty per anode, design life and control philosophy.
Mechanical mounting Must withstand installation and service loads. Mounting drawing, loads, support materials, isolation and guards.
Cable route Submerged connections are critical reliability interfaces. Cable type/length, armor, seals, penetrations and mechanical protection.
Inspection access Influences replaceability and lifecycle plan. Diver/ROV access, retrieval method, test plan and maintenance strategy.
PROJECT INPUTS

Data Required Before Manufacture

  • Structure drawings, protected areas, zones and coating condition
  • Seawater salinity/conductivity, temperature, depth and flow data
  • Design current, anode duty, design life and control philosophy
  • Anode mounting, support, shield, isolation and load requirements
  • Cable type, length, sealing, armor and route to the power system
  • Reference electrodes, inspection access, documents and delivery details
INSTALLATION & QA

Interfaces That Must Be Controlled

  • Inspect anode dimensions, coating/loading, cable seal and insulation
  • Verify support material, welds, fasteners, isolation and shield geometry
  • Protect the anode and cable against lifting, impact, abrasion and bend damage
  • Record installed location, orientation, cable route and reference positions
  • Commission and adjust only under the approved marine CP procedure
SUPPLY BOUNDARY

Anode Supply vs Complete CP System Responsibility

Define responsibilities in the purchase specification. HELE can configure and manufacture agreed anode components or assemblies; complete system engineering is not automatically included.

HELE supply can include

  • MMO tubular, disc, rod or custom marine anode assemblies
  • Agreed supports, guards, dielectric interfaces and cable seals
  • Project-specific cable type/length and termination features
  • Approved drawings, inspection and traceability documentation

Confirm separately in the contract

  • Complete marine CP current-distribution and interference model
  • Structural design of host asset and site installation
  • Rectifier/control equipment and reference electrodes unless specified
  • Diver/ROV work, commissioning and lifecycle surveys unless contracted
FAQ

Marine ICCP Anode Procurement Questions

Which MMO anode forms are used on marine structures?
Tubular, disc, rod and custom frame-mounted assemblies are common starting points. Final selection depends on structure geometry, current distribution, mounting, shielding, cable protection and access.
Is this page for ship-hull ICCP systems?
It focuses on fixed marine and offshore structures. Ship systems can have different classification, control, shaft and hull interfaces and should be reviewed as a separate application.
Why is a dielectric shield used near a marine ICCP anode?
A project-designed shield can help manage local current distribution and protect nearby coating. Its material, size and geometry must be confirmed by the marine CP design.
What water data should be provided?
Provide salinity or conductivity, temperature range, depth, tidal variation, flow or current velocity, fouling conditions and any unusual chemistry relevant to the protected zone.
How should submerged anode cables be protected?
The project should define cable construction, armor or conduit, bend limits, sealing, penetrations, supports, abrasion protection and inspection access from the anode to the termination.
Does HELE supply a complete offshore ICCP system?
HELE can supply specified anode assemblies and related components. Full CP engineering, power/control equipment, offshore installation, commissioning and surveys require explicit contractual scope.
TECHNICAL RFQ

Get Your Marine ICCP Anode Recommendation

Tell us your marine structure type, seawater exposure, current demand, design life target, preferred anode form, mounting method, cable route, mechanical protection requirements, and documentation needs. Hele Titanium will help review suitable MMO anode forms and marine ICCP configurations for your project.

  • MMO Tubular, Disc, Rod and Custom Marine Anode Support
  • Seawater Current Output and Mounting Review
  • Cable Sealing, Labels and Documentation Support
  • Factory-Direct MMO Anode Manufacturing
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