Line List Info on Piping ISOs?
Line List Info on Piping ISOs?
(OP)
I am trying to update my company's ISO template to include more information from the line list. In my experience, it increases the efficiency of the spool drafters to have most info on the ISO already. I am getting some push back from my boss who doesn't think that it is necessary to put all the info, however he does not have any experience with fabrication ISOs. I try to show him some reference ISOs from big name firms and company's and he is still hesitant. I know most of the info is tied back to the spec, but would it really be that bad to have the info on the ISO too? I have seen thousands of ISOs from every major company and they all do it a little differently and just in my personal opinion I liked having it on there because it made my job quicker and more efficient. See below for a list of my current template info.





RE: Line List Info on Piping ISOs?
The downside is that the iso now serves so much purposes/disciplines that it can become a bit overwhelmed by data. From your example I would e.g. leave the design code out, as the line spec already has this defined, and doesnt really add much for the people fabricating and installing the spool. The other values from your png attachment are however all present on our iso's as well.
All in all I would say you need to decide what should be on there, based on the the purposes of the drawing, and disciplines involded. Also, try to input you're data as much as possible on 1 place; having multiple locations where you (e.g.) define your design temp. can easily lead to mistakes (2 different values for 1 parameter). We prevent this by having 1 line list database, and linking our P3D/CAD database to that file.
RE: Line List Info on Piping ISOs?
If for some reason you must show more than once, be sure that your project specifications define which location's information shall prevail in case of discrepancy and also require that anybody noting such a discrepancy submit a clarification request to project management in writing.
Reaction to change doesn't stop it
RE: Line List Info on Piping ISOs?
RE: Line List Info on Piping ISOs?
And a north arrow.
Reaction to change doesn't stop it
RE: Line List Info on Piping ISOs?
RE: Line List Info on Piping ISOs?
RE: Line List Info on Piping ISOs?
RE: Line List Info on Piping ISOs?
RE: Line List Info on Piping ISOs?
'DGray' and 'PPD'. Hmmm...
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I'm the SPED admin (among other things).
Paul
RE: Line List Info on Piping ISOs?
RE: Line List Info on Piping ISOs?
RE: Line List Info on Piping ISOs?
here is another slant on the subject.
When you consider ALL the different people who use the Piping Isometric and the many reasons for that use, you will lean towards more information than less. With that in mind I agree with your list with the exception of Design Temp and Pressure as has been noted.
- I would add the Hydro Test Pressure
- Once the Piping Material Spec is created and Approved then the Design P&T is not normally used by anyone or needed.
- People who want less information on the Piping Isometric have never been at the jobsite doing a Punch-List at the top of a Fractionation Tower and some key point is only on the Line List.
I support your idea on this subject. However, being retired for 17 years I don't know what my former company (Fluor) is doing today but I know what we did back then.
Sometimes its possible to do all the right things and still get bad results
RE: Line List Info on Piping ISOs?
RE: Line List Info on Piping ISOs?
In the "old days", information duplication could be a real problem unless rigorous work processes were enforced.
RE: Line List Info on Piping ISOs?
I've seen different opinions on this subject. BI is right as well, except that nowadays automazation allows us, when applied and managed correctly, to define data at one place and then reference it at multiple other places; therefore reducing the paperwork.
RE: Line List Info on Piping ISOs?
Reaction to change doesn't stop it
RE: Line List Info on Piping ISOs?