Cathodic Protection
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Our Solution & Benefits
Mountleigh Oil & Energy Ltd offers a full range of External Cathodic protection solutions to meet client requirements, from initial advice and support to full turnkey systems. Our capabilities are backed by decades of Engineering and Manufacturing experience of Cathodic Protection Co. Limited in cathodic protection and marine anti-fouling solutions. www.cathodic.co.uk
We partner with Cathodic Protection Co Limited in providing cathodic protection solutions to the Oil, Gas, Petrochemical, Water and Power Industries. Specific applications include:
- Pipelines – oil, gas, product, water etc.
- Above ground storage tanks
- Underground storage tanks
- Well casings
- In plant pipe work
- Compressor stations
- Concrete structures –bridges, pipelines, marine structures etc.
- Ships (hull and sea chest/internal pipe work)
- Marine structures – jetties, wharves etc.
- Cooling water pipe work for Power Stations
Services
- Site Investigations
- Planning and project designs
- Project management
- Cost estimates, specifications, and Bills of Materials
- Anti-fouling
- Supply of OEM manufactured materials
- Installation supervision, commissioning, maintenance, and monitoring
- Consultancy and specialist advice
- General engineering and fabrication
- Training courses in Nigeria & UK
What's New
We are proud to unveil the latest innovation in cathodic protection systems: the Hazardous Area Transformer Rectifiers by Cathodic Protection Co., Ltd. This transformer is engineered with precision and designed to meet the highest safety standards. It is explosion-proof, air-cooled, and has the capacity to withstand hazardous and challenging environments. Most importantly, Hazardous Area Transformer Rectifiers are certified by ATEX, IECEx, UKEx, and ISO standards.
Elevate your cathodic protection system to new heights with Cathodic Protection Co Ltd.’s Hazardous Area Transformer Rectifiers which is available in Nigeria through Mountleigh Oil and Energy Ltd the trusted OEM representative. We Supply, install and provide comprehensive technical support, ensuring that clients have assistance when needed.
Key Features
Environment: Hazardous Area Indoor/Outdoor
DC Outputs: 6V to 50V; 1A to 700A;
Health Indicator Lights: Health indicator LEDS give immediate health status.
Full Output Control: Fully configurable without opening the cabinet and while in operation.
Reference Electrode Monitoring: Monitor and control range -5000 to +5000mV; 20 MΩ input impedance; Resolution 1mV
Ambient temperature of -20 to +60°C
Oil Cooled or Air Cooled
Constant Voltage, Current Control or Auto Potential Control
GPS Interruptor (including ATEX/IECEx Antenna)
Digital Controller: Output Control via our digital controller with OLED Display
External Rotary Isolator
Remote Monitoring & Control Systems: Cathodic Protection Co Ltd’s optional Remote Monitoring and Control System (RMCS) allows the checking of an installation’s performance from any remote computer or mobile device, giving complete freedom and versatility.
FAQs About Cathodic Protection
Electrochemical corrosion is generally caused when two dissimilar metals (by material or environment) are submerged in an electrolytic substance such as water (fresh or sea), soil, or concrete. A pathway is created through which free electrons move from the more active metal (anode) to the less active metal (cathode).
A reaction at the surface of the cathode allows oxygen to combine with the steel to produce ferrous hydroxide, i.e. rust.
For corrosion to occur, four elements must be present: a host site from which current flows, a destination site where no current flows, a medium capable of conducting current (such as water, concrete, or soil), and a return path between the host and destination site.
Cathodic protection connects the base metal at risk (the cathode; typically steel) to the anode that provides a supply of electrons to the cathode.
The technique of providing cathodic protection to steel preserves the steel by installing an anode which provides free electrons. These electrons flowing to the cathode prevents the less active steel from corroding.
We offer a range of cathodic protection systems, including:
- Impressed current cathodic protection.
- Sacrificial anode systems.
The galvanic anode method of protection uses a metal more active than the base metal to ‘sacrifice’ ions. These ‘sacrificial anodes’ (usually alloys such of magnesium, aluminium, or zinc) have a more negative electrochemical potential than the base metal.
These systems have limited life-spans, as the galvanic anode protecting the base metal will continue to degrade over time until the anode is no longer capable of supplying protection. Galvanic anode systems are self-regulating with current output changing with local conditions.
Impressed current cathodic protection systems consist of inert anodes that are connected to a power source, that provides a perpetual source of electrical current flow. The most common anode materials are activated titanium (MMO) and silicon iron. The current flow is created using a transformer rectifier unit which converts AC power to DC. This method has a much longer design life than galvanic anodes as the anodes are inert.
- A galvanic anode remains active through its lifetime which is typically 10 to 20 years.
- An impressed current system is typically designed for a lifetime of 25 to 30 years.
However, where anodes cannot be easily replaced the design can be increased to over 50 years.
Cathodic protection systems need to be checked on a frequent basis to ensure they are still operating correctly and protecting the structure. Competent personnel and specialist equipment are required to perform inspections.
Yes, we provide cathodic protection services for both onshore and offshore installations. Our expertise and experience cover a wide range of environments and conditions.
When choosing a cathodic protection solution, factors to consider include the environment, the type of structure, system efficiency, and compliance with industry standards. We work closely with clients to tailor solutions to their specific needs and conditions.
