Misalignment Pipes Standards

[crankPT]

Hello,

I'm a very recent technician as a quality control in shipbuilding industry taking focus in pipe systems.
So in order to do a better examination and learn more, i've been trying to find some standards or guidelines that tell me wich tolerance a misalignment in pipes unions, coupling... might have.

In BV and DNV-GL standards i can't find nothing in concrete, so can you help me?

 

[zeusfaber]

You might be better off looking at vendor literature for the type of couplings that are in use.

A.

 

[crankPT]

You're right...for example for straub couplings the vendor provides a technical manual that tells misalignments. But in butt welds or fillet welds, is there something in IACS or something?

 

[gerhardl]

You will get a lot of references from the net using combination search words : pipe alignment tolerances welding.

Use also the same for eng-tips internal search engine.

Best luck.