HOW INFERIOR UT PROCEDURES AND PRACTICES ON PRESSURE VESSELS COST $1 MILLION IN TURNAROUND REPAIRS - CASE STUDY 1 OF 2

摘要

The ultrasonic testing method is an excellent volumetric diagnostic tool for examining ASME pressure vessel welds. As with any non-destructive examination (NDE) method, the application must be performed properly in order to provide reliable and accurate results. This case study is intended to provide a more user-friendly explanation of a presentation that was given during the 7th Biennial API Inspection Summit, entitled, "Unreliable UT Examination of Category 'D' Nozzle Welds". The purpose of this case study is to shine light on some very common industry problems that can be fixed with a better understanding of what is actually required.