The Direct Current Voltage Gradient (DCVG) Survey is a proven technique used to detect and evaluate coating defects on buried pipelines. By measuring voltage gradients in the soil above the pipeline, DCVG identifies areas where protective coatings may have deteriorated, allowing for targeted maintenance and repair.

At APEX Integrity Inspections, we conduct DCVG surveys using advanced instrumentation and industry-standard procedures to ensure accurate detection of coating faults and assessment of cathodic protection effectiveness. This method supports proactive integrity management, minimizes environmental risk, and extends the service life of pipeline assets.

Our experienced field teams deliver precise data interpretation and actionable insights, helping clients maintain compliance and optimize asset performance.