Minimum Straight Length

Overview

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

The Minimum Straight Length table maps some attributes of the pipes/tubes with the allowed minimum straight lengths between two bends.

Note: Values this table are independent of the values you enter in the discrete list tables.

In Data Setup, this table should be assigned to:

when using file-based tables, the Minimum Tangent Length Table item in the resource table of Piping/Tubing Design Resources.
when using Engineering Specification objects, a specification in the resource table of Piping/Tubing Specification Resources.

Rule Customization

This section describes the customization options of the Minimum Straight Length table.

File-Based Table

A typical Minimum Straight Length file-based table is shown below:


V_Standard (string)	DS_Material (string)	V_NominalSize (string)	DS_BendRadius	DS_MinTangentLength
SSTL	Aluminum	3/16in	0.376in	1in
SSTL	Aluminum	1/4in	0.5in	1in
SSTL	Aluminum	5/16in	0.626in	1in
SSTL	Aluminum	3/8in	0.75in	1.125in
SSTL	Aluminum	1/2in	1in	1.5in
SSTL	Aluminum	5/8in	1.25in	1.875in
SSTL	Aluminum	3/4in	1.5in	2.25in
SSTL	Aluminum	1in	2in	3in
SSTL	Aluminum	1 1/4in	2.5in	3.75in
SSTL	Aluminum	1 1/2in	3in	4.5in
SSTL	Aluminum	2in	4in	6in
SSTL	Aluminum	2 1/2in	5in	7.5in
SSTL	Aluminum	3in	6in	9in
SSTL	Nickel	1/4in	0.75in	1.5in
SSTL	Nickel	5/16in	0.939in	1.5in
SSTL	Nickel	3/8in	1.125in	1.5in
SSTL	Nickel	1/2in	1.5in	2in

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


Parameter	Type	Importance	Input / Output	Description
V_Standard	String	Required	Input	Used for filtering
DS_Material	String	Required	Input	Used for filtering
V_NominalSize	String	Required	Input	Used for filtering
DS_BendRadius
DS_MinTangentLength			Output

Important: Any material you specify in the minimum straight 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. For more information, see the 3DEXPERIENCE Native Apps and the Material Definition User's Guide . 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 apps that have flexible routing, you should add a second table for flexible pipes and tubes and associate it in Data Setup.

Engineering Specification Table

A typical Minimum Straight Length Engineering Specification table is shown below:


Nominal Size	Outside Diameter	Material	Material Category	Minimum Straight Length
3/16in	0.1875in	AL_2017A T4	Aluminum	1in
1/4in	0.25in	AL_2017A T4	Aluminum	1in
5/16in	0.3125in	AL_2017A T4	Aluminum	1in
3/8in	0.375in	AL_2017A T4	Aluminum	1.125in
1/2in	0.5in	AL_2017A T4	Aluminum	1.5in
5/8in	0.625in	AL_2024 T3	Aluminum	1.875in
3/4in	0.75in	AL_2024 T3	Aluminum	2.25in
1in	1in	AL_2024 T3	Aluminum	3in
1 1/4in	1.25in	AL_2024 T3	Aluminum	3.75in
1 1/2in	1.5in	AL_2024 T3	Aluminum	4.5in
2in	2in	AL_2024 T3	Aluminum	6in
2 1/2in	2.5in	AL_2024 T3	Aluminum	7.5in
3in	3in	AL_2024 T3	Aluminum	9in
1/4in	0.25in	Nickel	Nickel	1.5in
5/16in	0.3125in	Nickel	Nickel	1.5in
3/8in	0.375in	Nickel	Nickel	1.5in
1/2in	0.5in	Nickel	Nickel	2in

The columns definitions are as follow:


Column Name	Column Type	Link to Table	Link to Column
Nominal Size	Nominal size	Nominal Size	Nominal Size
Outside Diameter	Length	Outside Diameter	Outside Diameter
Material	Material	Material	Material
Material Category	String	Material	Material Category
Minimum Straight Length	Length	-	-

The table has the following attributes:

Standard
Max temperature
Min temperature
Max pressure
Min pressure
Fluid
Fluid category

Sample Resource File

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.

Where Used


Used in this app	When	Is seen as
Piping & Tubing 3D Design	Routing pipes	Table Browser dialog box