Tube SHOP Flag

Isodraft takes the SHOP flag setting for tube from the specification. If the SHOP flag is not specified, the default is FALSE. It is most probable that the user will want small bore tube to be treated as an erection item (SHOP FALSE) and larger bore tube to be treated as a fabrication item (SHOP TRUE). It is also important that spool isometrics have tube with SHOP TRUE.

To access tubes with the same bore, schedule, material, ., yet with SHOP TRUE at one point and FALSE at another, it is necessary to have two tube SPCOMs. These will have identical lines in the specification except for their SHOP column entries and their names. The user does not want to have two different item codes for the same tube on the isometric, so the names should be identical up to a suffix delimiter (a colon ‘:’ by default). Isodraft will ignore the suffixes and the items will be totaled together on the Material list.

In this example, the first tube SPCOM will be selected by default and this has SHOP TRUE. To select the second SPCOM, with SHOP FALSE, use one of the following commands in the design module:

SEL LSTU WITH SHOP FALS

SEL HSTU WITH SHOP FALS

SEL TUBE WITH SHOP FALS

If the lines in the specification were reversed, then tube would be selected with SHOP FALSE by default and would need to be selected specifically with SHOP TRUE for spool isometrics. It is recommended, therefore, that the user arranges the lines for tubes with SHOP FALSE first for small bores and SHOP TRUE first for large bores.