Critical defect detection and characterization during petrochemical plant shutdowns is non-negotiable. Remote-field testing (RFT) technology is a standard method for inspecting carbon steel heat exchanger tubing, but the technology has its limits. Critical defects like pitting, corrosion, and baffle wear can be hidden underneath or near support plates and are nearly impossible to distinguish from the support plate signal itself using RFT technology. Even a single petrochemical heat exchanger can contain ove
Source: NDT
