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Wall Thinning – HRSG LFET

Wall Thinning – HRSG LFET

The Low Frequency Electromagnetic Technique (LFET) can detect and quantify wall thinning on HRSG finned tubes from the outside surface through the fins. As the LFET scanner moves along the tube surface, it measures the strength of the return signal that is transmitted into the tube by the scanner’s exciter coil. This technology is able to detect both localized and general wall loss such as pitting, under deposit corrosion and flow accelerated corrosion.


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