Equipment and spare partsBrowse manufacturers Search by manufacturerMARINE ELECTROCHEMICAL SYSTEMS FROM THE UNITED KINGDOM
We supply genuine Cathelco marine growth prevention systems, automated ICCP hull cathodic protection and reverse osmosis desalinators for ocean and offshore vessels.
Compare technical capabilities of Cathelco marine equipment. Provide vessel general arrangement, wetted surface area, or seawater cooling flow rates for accurate sizing.
Cathelco Marine Growth Prevention Systems (MGPS) eliminate macro-fouling from barnacles and mussels within seawater pipework, sea chests, and strainers. The controlled electrolytic release of copper ions creates an inhospitable barrier while maintaining eco-compliance.
Selection parameters: seawater flow rate (m3/h), sea chest configuration, pipework material, and strainer housing dimensions.
Cathelco ICCP systems deliver advanced electrochemical corrosion protection for commercial and naval vessel hulls. An automated thyristor control unit continuously delivers compensating direct current to neutralise galvanic oxidation across immersed hull surfaces.
Selection parameters: vessel dimensions, wetted surface area, operating speed range, and ice-class reinforcement requirements.
Cathelco shaft earthing assemblies prevent electrical spark erosion across propeller shaft bearings and gearbox teeth. Precision slip rings coupled with high-conductivity copper graphite brushes ground shaft potentials safely below critical thresholds.
Selection parameters: shaft diameter, rotational speed, brush holder posts, and millivolt monitoring instrument.
Cathelco Evolution BWTS incorporates dual-stage self-cleaning mechanical filtration and high-intensity ultraviolet disinfection. Chemical-free treatment ensures full regulatory compliance under stringent IMO and United States Coast Guard standards.
Selection parameters: pump capacity from 34 to 1,500 m3/h, electrical supply parameters, and pump room footprint.
Cathelco Seafresh reverse osmosis desalinators produce technical and potable freshwater directly from open seawater. Compact H2O and heavy-duty Ton Series deliver modular reliability across merchant vessels, offshore platforms, and superyachts.
Selection parameters: daily output capacity (tons/day), high-pressure feed pump rating, and automated flushing modules.
We supply genuine replacement Cathelco electrolytic anodes tailored for sea chests and seawater strainers. Matched copper paired with aluminium or ferrous anode sets provide simultaneous biofouling suppression and inner wall passivation.
Selection parameters: anode diameter, active length, mounting cofferdam sleeve, and vessel project number.
Genuine Cathelco MMO/Ti mixed metal oxide coated titanium hull anodes provide dimensionally stable operation over extended dry-docking intervals. Circular disc units (50–175 A) and low-profile linear anodes maintain uniform cathodic protection fields.
Selection parameters: current rating (50A, 100A, 150A, 175A), cofferdam insert, dielectric shield dimensions, and cable.
Precision reference electrodes from Cathelco deliver real-time feedback of the hull-to-water electrical potential to the central ICCP controller. Calibrated zinc and silver/silver chloride cells ensure stable measurement in salt and brackish waters.
Selection parameters: active element (Zn or Ag/AgCl), penetration depth, class approval, and gland assembly.
Cathelco Quantum and Evolution control panels dynamically modulate DC output to hull anode arrays based on real-time reference cell potential. Cabinets feature touchscreen telemetry, history logs, and NMEA/Modbus communication links.
Selection parameters: output amperage/voltage, controlled anode circuits, input power supply, and data bus integration.
We provide genuine servicing kits for Cathelco water treatment equipment: high-power UV lamps, quartz protective sleeves, ballast filter screen mesh, and replacement reverse osmosis membrane elements for Seafresh units.
Selection parameters: UV lamp wattage and pin configuration, Evolution reactor serial, and Seafresh membrane size.
Cooling seawater volumetric flow rates, sea chest geometry, vessel underwater surface area, classification society rules, and pipework alloy compositions.
Original Cathelco order reference, anode active alloy metallurgy (Cu, Al, Fe), cable gland penetration depth, reference cell type, and Evolution UV reactor serial numbers.
Founded in 1956 in the United Kingdom and operating within the Evac Group, Cathelco is a globally recognised marine engineering pioneer in corrosion prevention and biofouling mitigation.
With systems operating aboard over 50,000 commercial cargo vessels, container carriers, naval ships, cruise liners, icebreakers and offshore drilling installations, Cathelco equipment delivers uncompromising operational endurance across demanding open-ocean environments, volatile salinity gradients, and extreme temperature ranges from Arctic waters to tropical trade routes.
Marine macro-fouling from barnacles, mussels, and hydroids inside sea chests and seawater cooling pipework causes severe flow choking and critical main engine overheating.
Cathelco MGPS systems release precisely controlled microscopic copper ions to create an inhospitable settling environment without hazardous chemicals.
Paired aluminium or iron sacrificial anodes generate a durable alkaline passivation film across internal copper-nickel or carbon steel pipe walls, preventing costly operational downtime and premature pipe renewals.
Sacrificial zinc anodes create additional hull hydrodynamic drag and require frequent, costly replacement during scheduled dry docking. Cathelco ICCP systems deploy inert titanium mixed metal oxide MMO/Ti anodes designed to last the commercial lifetime of the ship.
Microprocessor-driven Quantum and Evolution thyristor panels continually read reference cell potentials, dynamically modulating direct current output to neutralise electrochemical corrosion across the entire immersed wetted hull surface.
The insulating oil film within propeller shaft stern tube bearings and reduction gears isolates the rotating shaft, generating an electrical potential difference relative to the hull.
Spark discharges across microscopic oil gaps cause severe pitting, bearing babbit lining wear, and mechanical gearbox tooth damage.
Cathelco shaft earthing systems use high-purity copper slip rings and silver-graphite brushes to maintain shaft potential safely below the critical 50 millivolt ceiling.
Full compliance with the IMO Ballast Water Management Convention requires certified biological neutralisation before deballasting in coastal ports.
Cathelco Evolution BWTS provides a chemical-free dual-stage architecture combining automatic 20 to 40 micron self-cleaning mechanical disc filtration with high-intensity medium-pressure ultraviolet irradiation.
Operating without active chlorine neutralisers or explosive off-gases, Evolution systems hold comprehensive IMO approval and USCG Type Approval.
Self-sufficient onboard freshwater generation is vital for crew wellbeing, domestic hotel loads, and boiler feedwater reliability.
Cathelco Seafresh reverse osmosis desalinators combine high-rejection polyamide spiral-wound membrane elements with corrosion-resistant duplex high-pressure plunger pumps.
Designed with modular footprints, Seafresh plants feature automatic freshwater membrane flush cycles and continuous digital conductivity salinometer monitoring.
To support scheduled voyage servicing and mandatory dry-dock surveys, we supply genuine Cathelco replacement anodes across all standard diameters and lengths, zinc and silver/silver chloride reference electrodes, dielectric shields, replacement shaft grounding brushes, and UV lamp quartz sleeves.
Verification against original shipyard drawings and Cathelco order references ensures precise dimensional fit and class compliance.
High-capacity impressed current cathodic protection creates localized electrical potential gradients directly adjacent to active hull anodes. To eliminate the risk of cathodic disbondment of marine antifouling coatings, Cathelco installs prefabricated dielectric shields around each MMO/Ti anode.
These specially formulated elastomeric or mastic barriers distribute polarization currents smoothly across adjacent hull plates, safeguarding vessel paintwork integrity.
Submit your inquiry for Cathelco systems or spare parts. Our technical team will prepare a comprehensive engineering proposal tailored to your vessel class and operational requirements.
Consignments are delivered directly to designated ports or shipyards accompanied by complete manufacturer certification and customs documentation.
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