Eddy Current Testing (ECT, including Eddy Current Array): Tube Inspections for Reliable Heat Exchangers

KAOTHEEM uses ECT (including Eddy Current Array) to detect pits, corrosion, erosion, cracking, and others, in stainless steels, brass, titanium, Inconel, copper, copper-nickel, and other non-ferrous tubes. This fast, accurate inspection technique has identified the flaws shown below.

INSPECTION PREPARATION
The tubes must be free of obstructions. However, the cleaning required is minimal.

ADVANTAGES

  • This technique is fast with up to 4 ft/s pulling speed through tubes.
  • Couplants are not needed. Consequently, contaminants are not introduced during the inspection.
  • The technique identifies large and small volume pits.
  • 100% of the surface of the tubes is inspected, with 360º coverage through the length. All the data is stored for review.

LIMITATIONS

  • With a traditional bobbin coil, circumferential cracks can be missed due to no disturbance in the flow of eddy currents.
  • Ferromagnetic deposits on the tubes will lead to erroneous assessments.
  • The probe needs a minimum 80% fill factor for maximum sensitivity to defects.
  • The technique has a ± 10% variance in call accuracy assessments.

Eddy Current Testing (ECT, including Eddy Current Array): Tube Inspections for Reliable Heat Exchangers

KAOTHEEM has been serving the oil and gas, petroleum and petrochemical, chemical, power generation, pipeline and potash industries since 2016.

As one of the indigenous NDT companies in Africa, we are owned and operated by our Highly Trained Employees and Team of Professionals, Inventors & Technologist Partners across the globe.

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Email: info@kaotheem.com

Phone: (+234) 813 927 2948

Website: www.kaotheem.com

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