Pulsed Eddy Current

Corrosion under insulation (CUI) is one of the largest problems in the petrochemical industry.

Previous methods of inspection were limited to single points of inspection or required removal of insulation, resulting in excess cost and time allocation. This is why Versa Integrity Group is bringing you the next generation of CUI inspections.

What is Pulsed Eddy Current (PEC)?

Pulsed Eddy Current (PEC) is an advanced NDE process that utilizes the principle of electromagnetic induction. Not unlike conventional Eddy Current, PEC applies a magnetic field to a conductor which is then moved close to another conductor. Distortions in the Eddy Current indicate a flaw in the material. The major difference between Pulsed Eddy Current and conventional Eddy Current is the ability of PEC to measure the electromagnetic response to several different frequencies in one step. This provides an opportunity to gather information from a range of depths.

Advantages of PEC

Introducing the reinvention of Pulsed Eddy Current

Versa Integrity Group is leading the way in cutting edge technology. We have joined forces with Eddyfi to bring their newest and most innovative technology to your doorstep. The Lyft is Pulsed Eddy Current reinvented, and allows the inspector to do corrosion mapping without the need to remove insulation.

Our inspectors can pinpoint damage mechanisms such as erosion and corrosion through up to 6 inches of insulation and temperatures ranging from less than -240 degrees to 930 degrees fahrenheit.

With Pulsed Eddy Current taking such a giant leap forward, Versa is proud to stand behind the Lyft. This technology allows for greater speed and accuracy as well as allowing the technician to spend little time calibrating. Calibration takes only 30 to 45 seconds, giving you reliable and repeatable results. Similar systems in the past have taken much longer and are less accurate overall.

Pulsed Eddy Current (PEC) Services

  • Carbon steel structures: -240°F to 930°F
  • Dynamic scanning up to 3" per second
  • Pipe diameter down to 4"
  • Test for CUI through insulation up to 6" thick
  • Test nominal wall thickness of carbon steel up to 1.5"
  • Accurate within +/-10%
  • Repeatable results
  • Corrosion scab measurement capabilities
  • Detects ID and OD indications
  • Built in encoder for accurate flaw locations
  • Perform point scans or C-scan
  • Not affected by wet insulation
  • Faster than previous technology
  • 3 sizes of probes for optimal accuracy
  • Calibration not user dependent
  • Easy to read reports with detailed C-scan maps

Please contact our office for more details on the services we perform.

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