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Pipe Stress Nomograph

Pipe Stress Nomograph

Pipe Stress Nomograph

(OP)
Folks,
I work for a pharma consultancy and we have a pipe stress analysis procedure that determines any stress analysis cases and what level of analysis is required.
We've recently revised our procedure to take account of low temp activities and I'm in the process of re-issuing across the group.

In the procedure we include a pipe stress nomograph. This is used to indicate how long a pipe leg has to be to 'absorb' the expansion in a perpendicular run. The nomograph we have is pretty old and is hard to read. I'm unable to find a replacement online and I'd like to be able to reference the original document in my procedure. (I've attached a pdf for info).
Does anyone recognise this? Could you tell me where I might be able to find another version of it. This one is for CS - is there a St St version out there?
Any assistance or direction would be very valuable. If there's an excel or similar software file that determines this then this would be more useful.

Thanks in advance,

James.

RE: Pipe Stress Nomograph

Hi James,
The quality looks quite good.  I have never seem any better. It matches the approximate accuracy of the output. I don't believe that there is anything particular about the nomograph.  It will probably be based on the guided cantilever formula.  It might be simpler to create a spreadsheet to solve it. You could then add stainless steel.  Just don't report the results to 3 decimal places!

RE: Pipe Stress Nomograph

Hi James,
          Just some observations. Surely if the procedure "your" procedure then you shopuld know the reference for the nomograph and have checked the results it gives from a quality perspective. It would appear to be un-professional to incorporate a nomograph into "your" procedure if the origin is unknown.

 

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