![]() ![]() Data storage: It is essential to store the data during the inspection cycle for regulatory purposes.Īll these specific constraints are addressed by AUT.Ĭalibration block containing flat-bottom holes (FBH) and other reference reflectors (ASTM 1997). This means characterizing the weld as accept/reject, almost in real time.ģ. Data analysis: Data needs to be analyzed before moving to the next weld. Offshore, the time may only be two minutes, but moving is not required.Ģ. Time: Onshore, the inspection cycle (mount scanner, scan, return, remove scanner, drive to next weld) is under four minutes. There are a number of specific constraints related to the construction cycle:ġ. AUT offers better inspection detection and sizing, plus lower reject rates. Over the past several years, AUT (automated ultrasonic testing) has started to supplant radiography for gas pipeline weld inspection around the world. Due to the demanding construction cycle, it is important that any defect in the welds be detected and analyzed very quickly. Then, they are rapidly inspected, coated, and buried. Pipes are girth-welded on site, typically using automated welding. Gas pipelines are made of high-strength steel and operate at a significant percentage of yield strength. * Very flexible for different pipe diameters, wall thicknesses, and weld profiles * Weld-to-weld inspection time of less than four minutes for 36-inch pipe ![]() Meets or exceeds ASTM E-1961, DNV2000 OS-F101, and API 1104 codes: Automated ultrasonic inspection of pipeline girth welds using phased arrays. ![]()
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