DC Voltage Gradient (DCVG) Surveys are a method of checking for defects within coatings and levels of cathode protection on pipelines and other engineering installations and structures. The Survey method involves sending a DC current along the pipeline before checking the voltage gradient with two earth contact probes and a voltmeter.
The Survey is especially effective as it diagnoses not only the defect but the level of severity and the strength of the cathodic protection. At R and R Corrosion we can provide DC Voltage Gradient Surveys and possess considerable expertise and experience working with clients worldwide in the oil and gas and water industries.
For more information on DC Voltage Gradient (DCVG) Surveys please contact us.
