Using AutoPIPE’s Tools> Model Consistency Check or when performing an Analysis you may encounter one or more of the the following messages:
How to correct a Tee modeled with 1 segment for ½ the header and the branch piping with a separate segment connected as the other ½ of the header piping ?
Note: The highlighted section is segment D and the ½ header in grey is segment E.
One cause for the warning message is a tee that was modeled incorrectly. Navigate to the point in question for inspection and to correct the warning message.
AutoPIPE Tee should be constructed using one of two methods:
1. The header is one segment and the branch is a separate segment.
2. Three individual segments connected to the same point.
1. when coping / pasting between models only the initial paste to point is connected correctly. Any additional node points will need to be connected manually using same technique below. To find all the disconnected pairs, use AutoPIPE command, “Coincident Node Tolerance (0- no check)” = (enter value > 0.00), and then "Coincident Node Checker". A report will be displayed showing all the pairs of node point with in the tolerance values that are not connected.
2. Suggest to refrain from modeling a A Tee component as 1 segment for ½ the header and the branch piping with a separate segment connected as the other ½ of the header piping as indicated by the image above
3. For issues related to Just a straight run of pipe, see steps 1 thru 8.
4. Consider turning on color Map for Segments. This will make it much easier to understand segment connections.
See that AutoPIPE automatically connected segment E to Segment N at D09
Again confirm segment direction using the keyboard arrows or review the points grid.
Once more, notice that AutoPIPE will automatically connect Segment D to Segment E and for a Tee.
If the Consistency Check report does not present a warning or error related to a tee modeled as mentioned in the original state above, no further modifications would be necessary. AutoPIPE has a convention on the backend to distinguish header from branch for the calculations.
One of the reasons why to fix this tee even if not required would be to clearly know what results belong to the header or branch piping.
:Tee modeled as 1 segment for ½ the header and the branch piping with a separate segment connected as the other ½ of the header piping. When reviewing the results for segment, user needs to remember that one segment is both header and branch.
However when Tee was modeled as 1 segment for header and separate segment for branch piping. Easier to know one segment is header piping and second segment is branch piping.
Tee, Cross, or Branch Piping Components - Modeling Approaches