The Pipe Bending Elongation Per Spec rule under the Piping Materials Class Rules node (the PipeBendingElongationPerSpec sheet in the Piping.xls workbook) defines the amount of "stretch" that occurs to the pipe length during the piping bending process. You can define the "stretch" length by doing one of the following:
Specifying the amount of pipe elongation per unit of bend angle for each applicable nominal piping diameter and bend radius.
Specifying the pipe elongation values at a specific bend angle for each applicable nominal piping diameter and bend radius.
Specifying the pipe elongation values using a combination of the two methods.
The information defined here are the exceptions per piping materials class to the default pipe bending elongation information defined on the Pipe Bending Elongation.
Bend Angle (Required)
Enter the bend angle for which the pipe bending elongation applies.
Nominal Piping Diameter (Required)
Enter the pipe diameter for which the flared pipe information applies.
Nominal Piping Diameter Units (Required)
Enter the unit of measurement, in or mm for example, for the value in the Nominal Piping Diameter column.
Pipe Bend Radius (Required)
Enter the pipe bend radius. Be sure to include the units of measurement when defining this value.
Pipe Elongation Unit Bend Angle (Required)
Enter the elongation of the plain piping due to the bending process per unit of bend angle. This value is the factor in the following equation: Elongation = Factor * Bend Angle.
Pipe Elongation (Required)
Enter the elongation value of the plain piping due to the bending process as an absolute value for a specific bend angle.
Spec Name (Required)
Type the name of the piping material class for which you are defining the pipe bending elongation information. The piping materials class that you enter must be defined on the Piping Materials Classes.