> For the complete documentation index, see [llms.txt](https://help.auxalia.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.auxalia.com/plant-tools/plantspecdriven/how-to-use/use-cases/editing-line-segment-properties-pid/inserting-symbols-pid/understanding-assigning-pipe-spec-data-pid/assign-pipe-spec-data.md).

# Assign Pipe Spec Data

This chapter describes how you can assign Pipe Spec Data to a single symbol.

Let's use the example from the previous chapter where we removed the assigned Pipe Spec Data.

![](https://2994090777-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FZH2AGHzvPfBW7YdaaGc0%2Fuploads%2Fgit-blob-a914ebc5a2d52cc67541e95e4c7c89be72f517d6%2FUse-Cases-0239.png?alt=media)

We use **Assign Catalog Data** from the context menu again.

![](https://2994090777-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FZH2AGHzvPfBW7YdaaGc0%2Fuploads%2Fgit-blob-53c6d8324d366dd284e7db4d72cee68c00a76c77%2FUse-Cases-0241.png?alt=media)

The **Part Selection** dialog opens and we see the available parts. If there is just one part available, you simply click on **Assign Catalog Data**. If you have multiple choices, you select the part and then click on the assign button.

![](https://2994090777-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FZH2AGHzvPfBW7YdaaGc0%2Fuploads%2Fgit-blob-3147119057e7a209d6cda8ac582d70bcdac73082%2FUse-Cases-0242.png?alt=media)

Next AutoPipe may show a dialog in case multiple flanges are available. Here you also select the flanges for each AttachmentPoint/Port and click on **Assign.** If you click on **Cancel**, then no flanges symbols will be inserted.

The handling of flanges and fasteners is explained under [Understanding AutoPipe (P\&ID)](/plant-tools/plantspecdriven/how-to-use/use-cases/editing-line-segment-properties-pid/inserting-symbols-pid/understanding-autopipe-pid.md) and [Understanding Fasteners (P\&ID)](/plant-tools/plantspecdriven/how-to-use/use-cases/editing-line-segment-properties-pid/inserting-symbols-pid/understanding-fasteners-pid.md).

![](https://2994090777-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FZH2AGHzvPfBW7YdaaGc0%2Fuploads%2Fgit-blob-6720c2eca1c90c5b01724c68169e833212f17615%2FUse-Cases-0243.png?alt=media)

Now we see that Pipe Spec Data have been assigned to the valve and the flange symbols, its Pipe Spec Data, and the fasteners appear again.

![](https://2994090777-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FZH2AGHzvPfBW7YdaaGc0%2Fuploads%2Fgit-blob-e09ebb798a21d6d2a64da2b9e579b18b292d2574%2FUse-Cases-0244.png?alt=media)-