Anti Corrosion Coatings

Arc Energy Resources is firmly established as one of the UK’s leading anti corrosion coating specialists.

Anti corrosion coatings are a widely used and effective method of protecting the internal surfaces of pipe systems, plant and equipment from corrosion using corrosion resistant alloys.

Typical applications using anti corrosion coatings include:

• flow loops
• flow spools
• oil and gas pipelines
• pigging systems
• pumps, valves and flanges
• risers
• sub sea connectors
• sub sea environments
• sub sea jumpers
• sub sea manifolds
• sub sea wellhead valves and associated equipment

Where standard, off-the-shelf carbon steel components such as valves, pumps, pipes, flanges or fittings are used, anti corrosion coatings are certainly the most versatile option, providing the assurance of a heavy-duty metallurgically-bonded protective layer that will not be undermined or dislodged in service.

Of the main anti corrosion coating processes, automated GTAW (TIG) is ideally suited to smaller components. It is also most appropriate where subsequent machining will be required, for example for the seal areas of valves and flanges.

GMAW (MIG), submerged arc and electroslag anti corrosion coating processes are used where larger areas and thicker deposits are required. Faster deposition rates mean these methods also offer cost savings.

Even in systems that do not suffer anything worse than normal aqueous attack and where pipes are internally protected by other methods, it is well worth considering the application of anti corrosion coatings to the system’s seal areas.

Anti corrosion coatings offer clear advantages to areas where a directional change of flow takes place – for example a bend or diversion point, or where the medium is physically propelled by pumping or other means. Anti corrosion coating protection can be applied specifically to these areas, eliminating the need to produce the whole component from an expensive corrosion resistant material.

The overwhelming advantage of an anti corrosion coating is its versatility. Whatever the shape or size of the piping component there is a process that can be applied and whatever the medium, there is an alloy to counteract its corrosive or abrasive properties.

Arc Energy Resources is qualified by the internationally renowned ASME Boiler and Pressure Vessel Certification organisation after its team of welding and quality engineers gained the ASME ‘U’ and ‘R’ stamp certificates of authorisation.

Although Arc Energy Resources has produced components for ASME certified vessels for many years, recent changes in the regulations mean that in future this highly specialised type of welding must be carried out in the company’s ASME qualified workshop.

This has involved the company introducing a completely separate ASME approved quality system to qualify for accreditation; and means that materials purchasing, production routing and inspection now have to be planned separately from other commercial work.

Call Arc Energy Resources now to discuss how you could benefit from their anti corrosion coating expertise.