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Buried Pipelines

Harbour

Why do buried pipelines suffer from corrosion and why do they need to be cathodically protected?

Buried steel pipelines for the transport of gases and of crude oil, brine, and chemical products must be cathodically protected against corrosion according to technical regulations. The cathodic protection process is also used to improve the operational safety and economics of gas distribution networks and in long-distance steel pipelines for water and heat distribution. Special measures are necessary in the region of insulated connections in pipelines that transport electrolytically conducting media.

Water distribution networks and central district cooling are two main pipeline infrastructure areas heavily affected by corrosion. Korrosionsgruppen AB has successfully been protecting various buried objects for over 30 years.

Advantages by applying cathodic protection:

  • Economical, just a fraction of the costs compared to newbuild
  • Environmentally friendly, no newbuild needed. Therefore, no more resources.
  • No more corrosion related leakage
  • No more corrosion damage means no more digging!

ICCP(Impressed Current Cathodic Protection)

Application areas

  • Gas pipelines
  • Water pipelines/distribution networks
  • Sewage pipelines
  • Protection pipes

Advantages

  • Protect more than 10 km of buried pipes with one small anode bed.
  • Cost efficient
  • Long design life, 30-40 years.
  • Enables localization of holidays more easily

Sacrificial Anodes

Application areas

Cathodic protection with sacrificial anodes on buried pipelines makes perfect sense when a highly conductive soil is available, or as a temporary protection. (e.g. temporary protection when detecting leaks on pipes, e.g. water pipes)

Material Used

Magnesium Anode

We Offer: Consultation, Projecting, Installation, Maintenance and Worldwide Cathodic Protection Material Shipping.

Certifications