The Benefits of Cathodic Method of Pipeline Protection against Corrosion


06 Nov


The leading course of pipeline failures is corrosion. After a long time, pipelines that are submerged in water are subjected to corrosion.  Metallic surfaces can be prevented from corrosion in the best possible way by using cathodic protection.  During the design of a pipeline system that is to be submerged, the plan should consider how pipe erosion is going to be avoided. Corrosion proceeds as a result of environmental factors. Pipelines that are buried under the surface of the earth are usually expensive investments.  Other methods that are used to prevent corrosion include using coatings and coverings.  They only serve as primary protection nonetheless. This article will discuss the benefits of using cathodic protection in corrosion prevention of pipelines.

The pipeline corrosion protection methods is both economical and practical for pipelines of large dimensions that are buried under water or under the ground.  Galvanizing and painting methods of preventing corrosion will only be effective for small pipes that cross the surfaces of the earth This is because they are easily available for maintenance.

Because of the reduced maintenance costs, cathodic protection is proving to be more cost effective. It is also because it does not require a large plate thickness for safety factors when operating at high pressures.  In consideration of the economic benefits, cathodic protection is cheaper to install and maintain than others.  Cathodic protection is beneficial on a technical scale since its effectiveness can be measured.  Furthermore, it is built on the fundamental laws of nature.

Cathodic protection is a superior choice to reinforcing pipelines with concrete especially in the wet and corrosive surrounding. Covering the pipes with concrete is only effective when the pipes are applied in soils that are less corrosive and dry.  Improper bonds and cracks are some of the negative effects of concrete pipes that could arise from mechanical expansion and vibration. In cathodic protection, it is possible to regulate the current output.  Efficient protection to the pipeline can be maintained by regulation the output voltage to a preferred degree when the coating of the pipeline damages. Furthermore, when cathodic protection is applied, it is possible to check if the structure is sufficiently protected or not.

In the end, cathodic protection can be applied in conjunction with the coating.  Cathodic protection can be applied in parts of the pipeline where there is poor quality of the coating.  Additionally, other applications of cathodic prevention include locations of the pipeline with average coating and also in pipelines that are not covered. There is an offer of optimum efficiency and safety guaranteed by using cathodic protection. This simply because pipelines can be reliably operated even in a critical environment.

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