... for tubes with helical feeding and inspection in partial immersion
Large tubes with diameters from 15 mm up to 610 mm can be inspected in partial immersion with the ECHOGRAPH-RPS.R testing system. Water-filled test chambers are located underneath the tubes and hold several probe batteries. While the probes remain fixed, the pipes move along the test chambers with a helical motion. Various probe orientations lead to the detection of all flaw types and a measurement of the wall thickness.
See pdf document for more details.