Minimum Tangent Length Table

This section provides a brief overview of the Minimum Tangent Length definition table.

The minimum tangent length definition table lists all the pipes, tubes or other routables available to the user within a pipe specification.

The table shows all sizes and certain other parameters. For each pipe specification, you need to create (or modify the sample) a table listing the materials and other attributes permissible in your project.

Note: Values in the pipe reference tables are independent of the values you enter in the discrete list tables.

In Project Resource Management, this definition table should be assigned to:

The Minimum Tangent Length Table item in the resource table of Piping/Tubing Design Resources.

This section describes the customization options of the minimum tangent length definition table.

A typical minimum tangent length table is shown below.

To customize the table, enter a line in the spreadsheet for each standard and nominal size in every material that you use.

Important: Any material you specify in the minimum tangent length table must exist in the database. There is a specific procedure for creating material - you must use this procedure and save the material in the database first. See the Infrastructure/Material Editor User's Guide for more information. The name in the DS_Material column must match the name in the database. Also note that material names in the database must be unique. If you have two entries with the name nickel in the database then, when you are routing a nickel pipe, you will get an error message and material will not be applied to the pipe.

For applications that have flexible routing, you should add a second table for flexible pipes and tubes and associate it in PRM.

This section explains where to find the sample resource file.

The default location of XXX_XXX_MinimumTangentLength.xls is

..\startup\EquipmentAndSystems\Piping\Specification\

and then the relevant specification, such as SS150R.