Administrative and Geographical Use of Selectors

In addition to bolt-specific type and diameter, you can further refine bolt selection by setting the Bolt specification level (BSEL) on a branch member. BSEL stores a value that can be used to satisfy a BSEL selector in the Bolt Specification.

For example, if the pipe specification requires the same flange to use black bolts indoors and galvanized bolts outdoors, set BSEL on the flange to IN or OUT, and include entries for both bolt sets in the bolt specification.

If the values at the two ends of a joint are inconsistent, the system:

• Generates an error message

• Outputs a material description of "Bolts undefined" for that joint (with zero item code, size, and quantity)

• Continues detailing

A further application is the selection of isolation kits. A flange may require an isolation kit for certain duties but not others. The kit may require longer bolts to accommodate insulating washers. Setting a different flange BSEL value can cause the system to select a Bolt SPCOM that has an SBOLT including insulating washers in its additional items arrays.

You can assign multiple value to a single valve, but all values must be defined. Spaces are required, and UNSET is not a valid value. Assign the appropriate values to each flange based on the required bolting configuration.