To Configure Size Ranges

1. In the Piping workspace, click Manage tab Style & Display panel Style Manager drop-down Routing Preference Definitions .
2. Select a routing preference.
3. In the right pane, click the Preferences tab.
4. For Part, select a part type.

   The part list contains all the unfiltered parts in the pipe catalog for the part type.

   • If you select *NONE* for a part type during pipe layout, the software prompt you to choose a part during pipe layout if a part type is needed to satisfy the layout geometry.
   • If you select a part without any sizes in common with one or more other parts, the other parts are reset to *NONE*, and you must make a new selection. In this situation, you are notified of the affected parts, so you can confirm or cancel the part selection.
5. To specify the upper and lower limits for a size range, do the following:

   If you want to specify ...	then ...
   the upper limit	select a size for Size Upper Limit. You can select from the list of nominal sizes that are common to all of the selected parts in the size range. If a subsequent size range exists, its lower limit is changed based on the upper limit you selected for the current size range. If you need to select a larger size than is allowed in the list of choices, select different parts for the size range.
   the lower limit	change the value for Size Upper Limit for the preceding size range. The lower limit of Size Range 1 is always defined by the selected parts in the range.

   Tip: You can switch the order of 2 size ranges by changing the upper limit of one range so that it is larger or smaller than the other.
6. Enter a description for the size range, if desired.
7. Add a range to designate a new size range.

   The new size range is appended to the list of ranges. Its lower limit is the next catalog size up from the upper limit for the preceding size range, and its upper size limit is the largest catalog size.

8. To delete a range, select the name of the size range, and click Remove Size Range.
Note: It is possible to create and save an invalid size range. For example, specifying an upper limit that is already in use by another size range could invalidate the size range. If a size range is invalid, *Invalid Size Range* is specified for Size Upper Limit in the routing preference definition, and the sizes in that range are unavailable nominal sizes on the Properties palette.