The Service Limits Rule node (the ServiceLimits sheet in the Piping Specification.xls workbook) specifies the temperature and the corresponding pressure that define the boundaries of acceptability for a piping materials class.
By entering service limit values for a piping materials class, the software will force users who route pipe to enter temperature and pressure information for the pipe run. Only by forcing users to enter temperature and pressure information can the software comply with the service limits that you defined here.
The software does not prevent you from defining testing pressures and temperatures that exceed the service limit pressure and temperature defined here.
Nominal Piping Diameter From (Optional)
Define the lower bound nominal piping diameter for which this service limit applies.
Nominal Piping Diameter To (Optional)
Define the upper bound nominal piping diameter for which this service limit applies.
Nominal Piping Diameter Units (Optional)
Specify the units for the Nominal Piping Diameter From and Nominal Piping Diameter To columns. For example, type in for inches or mm for millimeters.
Enter the pressure service limit. Include the unit of measure, psi or kPa for example, when defining this value.
Spec Name (Required)
Type the name of the piping materials class for which you are defining a service limit. The piping materials class that you enter must be defined on the Piping Materials Classes.
Enter the temperature service limit. Include the unit of measure, F or K for example, when defining this value.