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Technical Discussions
17:37 Nov-07-2019
Inspection of Process pipes into a guard pipe

Dear Sirs;

We have designed a piping system that include a guard pipe containing 4 process pipes (all pipes made of SS 316L) as you may see in the attached file.

Final client has asked if it would be possible to perform a corrosion /loss of thickness inspection of process pipes in some specific areas obtained from the stress analysis. Does anybody know any technique that allow this kind of inspection without cutting guard pipe?

In the attached file you may find dimensions and configuration of pipes

Thanks in advanced

17:39 Nov-07-2019
Re: Inspection of Process pipes into a guard pipe
In Reply to eng at 17:37 Nov-07-2019 (Opening).

Download Dimension _ Configuration

I forgot the attached file.
NDT Inspector,
Vietnam, Joined Jul 2009, 37


NDT Inspector,
Joined Jul 2009
21:55 Nov-07-2019
Re: Inspection of Process pipes into a guard pipe
In Reply to eng at 17:39 Nov-07-2019 .

Can you do RT thickness measurement at 2 directions (90 degree)? You can use outside diameters of the process pipes for reference comparator to determine the wall thicknesses.
Another option would be use IRIS for tube inspection.


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