What Factors That Contribute To External Pipe Corrosion

 

pipeline corrosion

Pipeline corrosion

Various pipeline manufacturing and installation companies consist of various materials like Iron, Copper, Polybutene, PVC, Galvanised Steel, etc. Usage of these materials is entirely based on the type of pipeline installation like Gas Pipeline, Oil Pipeline, Petrol Pipelines, water pipeline, and etc.

The most commonly faced problem with pipelines is Corrosion, which takes place because of the substances passing through the pipelines and external weather conditions as well.

Pipeline Corrosion is the oxidation and electro-chemical breakdown of the pipeline which is used to maintain a supply of any substance. 

What are the causes of Pipeline Corrosion?

  1. The temperature of the water.
  2. High levels of Calcium present in water.
  3. Oxygen levels, excessive or inadequate.
  4. Exposure to sunlight.
  5. Incorrect installation of pipelines.
  6. Impurities in the pipeline.
  7. Underground soil or debris. 
  8. The pH level of water.
  9. The velocity of the substance passing through the pipeline. 

What are the types of Pipeline Corrosions?

  • Pipeline corrosion takes place in various forms such as pitting corrosion, galvanic corrosion, uniform corrosion, crevice corrosion and micro-biological influence as well. 
  • Pipeline corrosion takes place in non-metal pipelines like carbon fibre or plastic as well.
  • Pipeline corrosions can result in cracks in the pipeline system allowing contaminated substances in contact with the pipeline substance. 

Pipeline corrosion management

  • For external protection from corrosion, pipelines need to be coated. Special coating liquids are available that prevent corrosion on external surfaces.
  • For internal protection, washing the pipeline which chemical solutions help in pumping out the corrosive substances.
  • It is important to get the maintenance of the pipeline frequently to avoid contamination, corrosion and any hazardous substances. 
  • Lubricating the pipelines is one of the best solutions for gas pipelines and oil pipelines. 


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Location: India

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