NON-DESTRUCTIVE testing company Applus RTD has launched a new inspection technology range it says can complete a full inspection of LNG storage tank welds in a single scan movement.

The Applus RTD Rayscan Tankscan is a real-time digital radiographic inspection system which produces a high quality image of each weld.

The system is an advance on current radiography methods, since no chemical processing of film is required and a steady scanning system is used for dynamic examination.

The system is suitable for both horizontal and vertical welds and its rigid frame helps maintain alignment between the X-ray source and the digital line detector, the company said.

This more efficient process can save operator budgets by reducing the amount of time consumed examining each weld, as well as the number of operators required.

Applus RTD technology director Rienk de Vries said the system improved the performance of radiography inspection at a speed that was more suited to the welding process.

“With the current, static methods, much time is involved in the handling and positioning of the equipment, and often additional processing is required,” he said.

“This revolutionary technology allows for a steady scanning movement instead of static exposures gained through conventional radiographic methods. This has a positive impact on the overall inspection speed, meeting the image quality requirements set by the industry.”

Mr de Vries said the product has been designed to avoid vibrations, with a rigid frame and support wheels.

A safe working distance of only three metres from the frame is also achieved with a protective shield surrounding the X-ray source, beam and detector.

“Ensuring the integrity of the infrastructure being used in the global energy industry is critical to the success of exploration and production activity and it is of paramount importance to Applus RTD that we not only contribute to improved standards, but set the bar within the NDT arena,” he said.