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NDT.net Issue - 2009-08 - NEWS
NDT.net Issue: 2009-08
Publication: e-Journal of Nondestructive Testing (NDT) ISSN 1435-4934 (NDT.net Journal)

Phoenix launches new edition PWR scanners

Phoenix Inspection Systems Ltd69, Warrington, United Kingdom

Phoenix Inspection Systems has launched new, updated versions of two of its nuclear power plant inspection scanners. Both SAGE and APSIS are designed specifically for use on pressurised water reactors (PWRs) and have proven track records within the industry.

SAGE is used for the inspection of pipe and nozzle welds and in the latest revision, MAXI-SAGE has been designed to inspect critical welds on the primary circuit. The scanner can be assembled in less than 10 minutes to minimise the time operators spend in contaminated areas. It allows for the simple interchange of probes, allowing greater flexibility to use different numbers and configurations.

Cable management has been improved and a modular system has been adopted so the same axial drive unit can be used on pipes of different diameters, minimising the duplication of parts. The scanner has also been modified for use with Phased Array probes.

APSIS - the Automatic Pressuriser Surge Line Inspection System is used for testing transition, austenitic and thermal sleeve welds on the pressuriser surge line and the surge line to primary loop welds. It can be deployed with Pulse-Echo, TOFD and Phased Array ultrasonic techniques.

The original APSIS was designed for Doosan Babcock, then Babcock Energy, over 12 years ago for use in testing EdF s fleet of 40 reactors and is still in active service today.

The updated version includes improved environmental protection for the DC servomotors whilst maintaining their simplicity to access and change. It also incorporates weight-saving measures to make it easier to transport the scanner to and from the inspection area. One thing that has not been altered is the ease with which the APSIS can be assembled - it takes less than ten minutes to mount and be ready for operation.

Neil Hankinson, project manager at Phoenix, said: Both SAGE and APSIS have really stood the test of time which validates the original design concepts. These latest versions retain all the successful attributes of the original scanners. The enhancements we have introduced will make them even more user friendly and allow for simpler maintenance, improved reliability and smoother scanning performance.

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