Testing Tube

Eddy Current, Ultrasonic or Flux Leakage techniques can be used to inspect welded, extruded, and seamless tubing. The choice depends on the nonconforming conditions you wish to detect, the size, including wall thickness, and the characteristics of the material. MAC and MA Nordic instruments can handle a range of metal materials with a uniform cross section, including squares, rectangles, hex and round in cut lengths or continuous production. Carbon steels, stainless alloys, copper, aluminum, titanium and all other non ferrous metals can be inspected.

A system designed for automated testing of seamless, low-alloyed, carbon steel pipes with a diameter range of 60.3 to 220mm and maximum wall thickness of 25mm includes the Echomac® ultrasonic, Rotoflux® longitudinal and transverse flux leakage, and demagnetizer inspection equipment.

The electromagnetic flux leakage portion of the system covers a combination Rotary Transverse and Rotary Longitudinal Flux Leakage test system for detecting longitudinal and transverse defects on the OD or ID of heavy walled pipe. The combination of a relatively high rotary speed and a number of transverse detectors mounted on each probe allows the transverse system to perform as if you had an array of many detectors in fixed positions all around the tube.

After passing through the transverse test station, the pipe enters the Rotary Flux Leakage tester where testing is done for longitudinal ID and OD defects and holes. This system uses two sets of detector arrays with fourteen detectors in each array. Once the flux leakage portion of the inspection system is completed, the material is then passed through a demagnetizer to remove any residual magnetism left in the pipe.

The ultrasonic portion of this system is for the on-line testing of casing pipe, green pipes, and coupling stock pipes after heat treatment (quenching and tempering/normalizing) & straightening. This tester utilizes a seal-less design which reduces maintenance. This particular rotary has fourteen transducers and rotates at 850 RPM. This configuration will allow the testing for internal and ID flaws.

Extension adaptors for the ultrasonic transducers are being used to test smaller diameter tubes. In order to guarantee optimal testing of smaller diameter tubes (diameter ≤ 100mm), a set of shorter focus transducers are used as well. A water package is included to provide a sufficient source of clean water to the rotary. Speed of test ranges up to 35 m/min with 120% scanning, fully satisfying the API 5CT / ISO 11960 (L2) specification.

Also available are paint markers, feed systems, inlet and outlet conveyors, sorting systems, conductor control panels, and resilient environmental cabinets in various configurations, to house MAC’s corresponding electronics to complete the test system.

For more information on multi test systems for inspecting tube, a free demonstration, or to speak to a representative in your area, please feel free to contact us via info@manordic.com.