Using digital Real Time Radiography to assess hidden pipe corrosion

Radiography

Our technicians enjoy thinking on their feet. NDT Group is often sought out when the most obvious solution is not tenable. 

A recent enquiry from a medical equipment supplier meant our team had to employ some significant lateral thinking. The result was a well-executed inspection and a very happy Client.

Who is Meditek?

Meditek supplies and instals equipment for the healthcare industry. It plans and instals medical equipment for hospitals, laboratories, and educational facilities. It also provides consultancy services, healthcare facility planning, project management, scoping and hospital management. They reached out to us through our website. 

The Problem

The medical equipment supplier informed us that they had concerns with a pipe that lay underneath the hospital within access tunnels that they helped manage. There was a build-up of scale on the outside of the pipework, which suggested that there were more significant issues hidden below the scale. They needed an NDT company to assess the extent of the damage so that they could determine whether to replace the pipe or not. 

The situation was made more complex because of the thickness of the pipeline wall.  The pipeline is made of copper material and is only 2mm thick. This would make typical Ultrasonic inspection unsuitable for determining the extent of the damage.

Our Solution

Our team decided that they were best to avoid Ultrasonic testing and use a different method altogether. We proposed to inspect the copper pipework using Digital “Real-time” Radiography

Digital “Real-time” Radiography (RTR) is a non-destructive testing technique that uses X-rays to create a digital image that is displayed instantly on a screen. The method is particularly suited to situations where corrosion on pipework is suspected but is not visible due to other materials covering the area. These other materials can include insulation, or in this instance, scale. 

This technique would enable us to “see” underneath the scale, detect any defects and identify the cause of the scale build-up.

The Result

The Client was pleased with the outcome of the inspection. We were able to produce a report that detailed the condition of the pipe underneath the scale. The client was then able to gauge the condition of the pipework underneath the areas of scale and ultimately make a decision on whether or not the pipework should be replaced. 

There were additional benefits. The digital nature of the radiography set meant that the images were created instantly. With traditional radiography, time is required to process the film, which makes for a longer inspection time. With the RTR set, processing time was not required, and our client was pleased that the inspection could be completed quickly. 

There was also an environmental benefit. Traditional radiography requires the use of many consumables – chemicals to process the film and replacement films, themselves. With digital radiography, these consumables are not required and there is much less waste being produced.

The Client was pleased with the outcome of the inspection. We were able to produce a report that detailed the condition of the pipe underneath the scale. The client was then able to gauge the condition of the pipework underneath the areas of scale and ultimately make a decision on whether or not the pipework should be replaced. 

Responsive testing that delivers assurance that your equipment is safe.

Contact us for a quality testing service with a fast report turnaround. We can respond to any challenge.

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