OIS uses ECT (including Remote Field and Near Field technique) to detect pits, corrosion, erosion,
cracking, and others, in carbon steel (RFT) stainless steels, brass, titanium, Inconel, copper, copper-nickel, and other non-ferrous tubes.
The tubes must be free of obstructions. However, the cleaning required is minimal.
Tube inspection (Eddy Current ET – Remote Field RFT – Near field NFT)
Application
- The tubes within heat exchangers and boilers are subjected to high temperatures, pressures, and corrosive environments, making them susceptible to degradation over time.
- Eddy Current (ET) inspection is widely employed for the examination of these tubes due to its ability to detect and characterize surface and near-surface defects such as corrosion, erosion, cracking, and wall thinning.
Advantages
- This technique is fast with up to 1 m/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.
Personnel Qualifications:
- Our inspectors are highly qualified, holding certifications at Level 2 in accordance with the SNT TC 1A system. In Eddy Current ET for Tube inspection.
- This qualification process ensures that our personnel possess the necessary knowledge, skills, and expertise to perform all eddy current testing (ET / RFT / NFT).
Equipment:
Equipped with following equipment:
- NORTEC 600D (OLYMPUS)
- OLYMPUS tube probes for ET/RFT/NFT applications in different tube material, diameters and thickness.
- Calibration tubes with artificial flaws (notches, SDH, holes…) for different materials, application and thickness.