Product & Services
Cathodic Protection
Engineered solutions for corrosion control in pipelines, tanks, and marine structures, featuring anodes, rectifiers, and monitoring devices.
CATHODIC PROTECTION ANODES
Advanced electrochemical solutions that safeguard critical oilfield and marine assets from corrosion, ensuring durability and long-term performance.
Sacrificial (Galvanic) Anodes
Self-powered anodes that corrode preferentially, protecting steel structures in marine and oilfield environments.
- Types: Zinc • Aluminum • Magnesium alloys
- Forms: Cast blocks • Rods • Plates • Bracelet anodes
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Properties:
- Current Capacity: 500–2,500 Ah/kg (Zn/Al alloys) • 1,200 Ah/kg (Mg)
- Driving Voltage: 1.05 V (Zn) • 1.5 V (Al) • 1.55 V (Mg)
- Efficiency: 90% (Al), 95% (Zn), 50% (Mg)
- Lifespan: 5–25 years depending on environment and alloy type
- Features: Self-regulating • No external power required • Reliable in seawater/brackish conditions • Easy installation and replacement
- Applications: Offshore platforms • Marine hulls • Subsea pipelines • Storage tanks • Jetty piles
Impressed Current Anodes (ICCP)
Externally powered systems using inert anodes to deliver protective current to submerged or buried assets.
- Types: MMO (Mixed Metal Oxide) • High-Silicon Cast Iron • Graphite • Platinized Titanium
- Forms: Rods • Tubular • Ribbon • Disc anodes
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Properties:
- Current Output: Up to 100 A per anode
- Current Density: 100–500 mA/m² (marine), up to 1,000 mA/m² (buried structures)
- Lifespan: 20–30 years (MMO) • 15–20 years (cast iron/graphite)
- Voltage Range: 2–50 V (controlled via rectifier)
- Features: Adjustable current supply • Long service life • Effective for large structures • Remote monitoring/control capable
- Applications: Offshore jackets • Large marine vessels • Subsea pipelines • Storage tanks • Refinery infrastructure
Hybrid Anodes
Systems combining sacrificial and impressed current technologies for optimized, long-term corrosion protection.
- Types: Zinc/Al sacrificial cores with ICCP integration
- Forms: Tubular • Bracelet • Retro-fit modular units
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Properties:
- Initial Driving Voltage: 1.0–1.5 V (sacrificial phase)
- Current Density: 50–200 mA/m² in ICCP mode
- Service Life: 20–40 years (depending on configuration)
- Efficiency: >90% utilization in hybrid systems
- Features: Dual-mode protection • Automatic transition from galvanic to ICCP • Extended lifespan • Lower power consumption than full ICCP
- Applications: Offshore wind farms • Subsea tiebacks • FPSOs • Pipelines in deepwater environments • Critical marine assets requiring redundancy
CATHODIC PROTECTION RECTIFIERS
Protective headgear providing breathing gas supply, vision, and communication support for professional divers in industrial, marine, and offshore environments.
Conventional Rectifiers
Basic rectification units converting AC to DC for steady, reliable cathodic protection current supply.
- Types: Single-phase • Three-phase • Oil-cooled • Air-cooled
- Forms: Indoor cabinet • Outdoor weatherproof enclosures
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Properties:
- Output Voltage: 0–50 V (adjustable)
- Output Current: 0–100 A (typical)
- Efficiency: 80–90%
- Cooling: Forced air or oil bath
- Standards: NACE SP0169 • IEC 60146 compliant
- Features: Rugged construction • Simple operation • Cost-effective • Reliable for small to medium CP systems
- Applications: Buried pipelines • Storage tanks • Jetty piles • Small offshore structures • Industrial plant piping
High-Current / Industrial Rectifiers
Heavy-duty rectifiers designed for large-scale cathodic protection systems in oilfield and marine operations.
- Types: High-capacity transformer rectifiers • Oilfield CP rectifiers • Multi-phase units
- Forms: Outdoor skid-mounted • Weatherproof modular enclosures
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Properties:
- Output Voltage: 0–100 V (adjustable)
- Output Current: 100–1,000+ A
- Efficiency: ≥92% at full load
- Cooling: Air- or oil-cooled (forced circulation for high capacity)
- Lifespan: 20–25 years with routine maintenance
- Features: Handles large CP networks • Suitable for deep water and long pipelines • Robust design for offshore conditions • Remote adjustment possible
- Applications: Cross-country pipelines • Offshore platforms • Marine terminals • Refinery storage facilities • Subsea tiebacks
Transformer Rectifier Units (TRU) / Smart Rectifiers
Modern, intelligent rectifiers with remote monitoring and precise control for advanced CP systems.
- Types: Thyristor-controlled • Switch-mode (SMPS) • Programmable TRUs
- Forms: Compact modular • Weatherproof smart cabinets • Integrated SCADA units
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Properties:
- Output Voltage: 0–100 V (TRU), up to 200 V (SMPS)
- Output Current: 0–500 A (expandable)
- Efficiency: 94–97% (switch-mode)
- Accuracy: ±1% voltage/current control
- Communication: SCADA/IoT compatible (RS485, GSM, Ethernet)
- Features: Remote monitoring and control • Auto-polarization adjustment • Event/data logging • Energy-efficient operation • Alarm integration
- Applications: Offshore jackets and FPSOs • Remote subsea pipelines • Deepwater CP systems • Storage tanks with digital monitoring • Refineries and petrochemical complexes
CATHODIC PROTECTION MONITORING DEVICES
Precision instruments that track and verify CP system performance, enabling reliable corrosion defense for critical oilfield and marine assets.
Reference Electrodes
Stable potential devices that provide accurate measurements of CP system effectiveness in submerged or buried structures.
- Types: Copper/Copper Sulfate (Cu/CuSO₄) • Silver/Silver Chloride (Ag/AgCl) • Zinc reference
- Forms: Permanent fixed electrodes • Portable handheld probes • Subsea cable-connected sensors
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Properties:
- Stability: ±5 mV drift/year (Ag/AgCl subsea types)
- Potential Range: –200 to +300 mV (reference to standard hydrogen electrode)
- Lifespan: 10–20 years (permanent subsea installations)
- Standards: NACE SP0169 • ASTM G3 compliant
- Features: High stability • Accurate polarization measurements • Long service life • Compatible with onshore and offshore conditions
- Applications: Buried pipelines • Offshore risers and jackets • Marine vessels • Storage tanks • Subsea structures
Remote / Data Acquisition Units
Digital monitoring systems for real-time CP data collection, remote control, and performance tracking.
- Types: GSM/4G units • Satellite-linked modules • SCADA/IoT-enabled systems
- Forms: Pole-mounted stations • Panel-integrated modules • Subsea telemetry units
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Properties:
- Data Logging Frequency: 1 s – 24 hr intervals (programmable)
- Power: Solar, battery, or rectifier-integrated supply
- Communication: GSM • Satellite • Ethernet • RS485
- Accuracy: ±1% voltage/current logging
- Storage Capacity: Up to 1 GB onboard data (expandable)
- Features: Real-time monitoring • Remote alarm notifications • Cloud/SCADA integration • Low power consumption • GPS time-stamping
- Applications: Cross-country pipelines • Offshore CP systems • Remote storage terminals • Marine platforms • Subsea tiebacks
Test & Measurement Devices
Portable tools for field verification, inspection, and troubleshooting of cathodic protection systems.
- Types: Multimeters • Data loggers • Potential survey equipment • Interrupters for current cycling
- Forms: Handheld units • Portable field kits • Rugged waterproof casings
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Properties:
- Measurement Range: ±100 V DC • ±100 A current
- Accuracy: ±0.5% of reading
- Battery Life: 8–12 hrs continuous field use
- Standards: CE • IEC 61010 safety rated
- Features: Lightweight • Rugged for field use • High accuracy logging • Data export (USB/Bluetooth) • Easy calibration
- Applications: Pipeline potential surveys • Tank-to-soil readings • Offshore CP audits • Vessel drydock inspections • Industrial plant CP verification