Description
Remote Field Array technology works with a variety of ferrous pipe detections (steel, cast iron, ductile cast iron), and defects as shallow as 20% from the wall thickness. Technology performance depends largely on 3 factors: pipe material, probe fill factor (the relation between the exterior diameter of the probe and the interior diameter of the pipe) and probe stability within the pipe. Probes are also sensitive to ID and OD defects. Other tools may be used to distinguish identification defects from OD defects, much like remote visual inspection. A general traction speed of 5 meters per minute is employed.
