Technical Inspection Services
Heat Exchanger
The inspection of heat exchangers encompasses the assessment of the tubes found in a variety of assets including shell-and-tube heat exchangers, steam generators, boilers, coolers, feedwater heaters, and condensers. The most common defect that asset owners and inspection companies search for are pitting and corrosion, longitudinal cracks, circumferential cracks especially at the tubesheet, erosion, fretting and metal loss. Detecting these defects early enables optimal performance and of course the prevention of critical failure.
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The Inspection of heat exchangers encompasses the assessment of the tubes found in a variety of assets including shell-and-tube heat exchangers, steam generators, boilers, coolers, feedwater heaters, and condensers. These key assets are common in the oil, gas, petrochemical, power generation and nuclear industries. Heat exchanger tubes are typically small in diameter and numerous, some bundles containing as few as five tubes while others as many as 50,000. Tubing can be straight or curved, and typically require specific probes to inspect from the inside of the tube.
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Ferrous Tubing
Ferrous tubes are common in the shell-and-tube heat exchangers of the oil, gas, and petrochemical industry, among others, where inspection companies typically use RFT, NFT, NFA, MFL, and IRIS in various combinations to maintain efficiency.

Non-Ferrous Tubing
Non-ferrous metals, like Inconel, are used to make tubes that are non-magnetic and offer a better resistance to corrosion and stress craking

NDT of Heat Exchanger Shells
In order to determine remaining life assessments, ultrasonic corrosion mapping of the inlet end of a heat exchanger is imperative. This risk-based assessment promotes maintenance programs and ideal repair strategies. Eddyfi Technologies is offering a solution that allows in-service examinations.
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