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NDT & testing

Corrosion Under Insulation & PEC

Pulsed eddy current uses an electromagnetic transient response to screen for wall loss through suitable non-conductive insulation and weather protection.

Corrosion Under Insulation & PEC — photograph placeholder

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Understanding the technique

Pulsed eddy current uses an electromagnetic transient response to screen for wall loss through suitable non-conductive insulation and weather protection. It helps focus insulation removal and detailed inspection.

Where it adds value

Insulated pipes, vessels and structures susceptible to corrosion under insulation.

The purpose is to provide evidence that supports a defined asset decision: prioritizing maintenance, investigating degradation, assessing serviceability or documenting equipment condition. The examination is planned around the asset's operating context and the information needed by the owner.

Inspection outputs

Screening maps and areas prioritized for detailed examination or insulation removal.

Planning considerations

PEC gives an averaged response over a probe footprint. Material, insulation thickness and nearby features influence results; local pitting may require other methods.

From scope to decision

Review the asset

Provide equipment identification, drawings, material details, operating conditions and previous inspection records where available.

Agree the examination plan

Confirm the inspection objective, accessible locations, coverage, acceptance basis, site arrangements and reporting requirements.

Document and evaluate

Review recorded findings against the agreed scope, identify any coverage limitations and define the need for further inspection or engineering assessment.

Project questions

What information helps define a quotation?

Share the asset type, location, quantity, inspection objective and desired schedule. Drawings, previous reports and access information help the team prepare a realistic scope.

Can this technique be combined with other services?

Yes. Complementary examination or engineering assessment may be needed to characterize relevant findings. The combination depends on damage mechanisms, material, geometry and the decision required.

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Clarity for your next
integrity decision.

Tell us about your asset, location and inspection objectives. Our team will help define the right scope.

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