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COBRA Scanner FAQs

1. What is the minimum wall thickness that can be inspected with the COBRA on the smallest diameter pipe size?

We can't give an exact number for the wall thickness. It is too closely related to the defects, material type, noise in the material, and the operator's ability. The customers need to make their own tests because we cannot guarantee the performance for their specific applications. Small diameters lose a lot of power on each skip and thin wall pipe required multiple steps to cover wide welds. This combination can become a problem with very small and thin pipes. Unfortunately, we cannot give a number that will work in every situation without being too conservative.

2. Is the COBRA scanner AUT code compliant?

A definite "yes "! Scanners and instruments are one part of an overall procedure or process, which has been written to comply with the various codes. They contain features such as scan speed, encoder capability, instrument linearity, software options, and data recording that make up the equipment portion of the overall process.

COBRA helps you achieve inspection compliance for:
- ASME CC 2235
- ASME B31.3 CC 181
- ASME B31.1 CC 179

3. Can the COBRA scanner inspect pipe-to-component welds?

Yes, if the straight portion on each side of the weld is long enough, it is possible to carry out the inspection using two probes. If not, the scanner can be dismantled to perform the inspection from one side of the weld.

4. What is the straight-pipe length needed on each side of the weld to perform an inspection with the Cobra?

59 mm of straight pipe is needed for each side. From the center of the weld, the dimension needed on each side is: 59 mm + half of the weld width.

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