Bolting Tables

The Bolt Table hierarchy contains information describing the nature of the bolted connections of Piping Components in a project. Although the Bolt Table is part of the Catalog database, and so must be set up using Paragon, it has been designed for the exclusive use of Isodraft and so is described in detail in Isodraft Reference; only a summary is presented here. Element creation and attribute setting is done in the usual way.

The Bolt Table hierarchy is illustrated below:

The element types are as follows:

• BTSE - the Bolt Set is the administrative element for Catalog component bolting information. It owns Bolt P-point (BLTP) elements.

• BLTP - the Bolt P-point stores the bolting information for an individual bolt for a particular type of flange. It has the following attributes:

  NUMBER	-	the bolt hole number in the bolt circle
  BDIA	-	the bolt diameter
  BTHK	-	the bolt length
  BTYPE	-	the type of bolt

• BLTA - the Bolt Table is an administrative element.

• BLIS - the Bolt List is an administrative element which groups together Standard Bolt (SBOL) elements.

• SBOL - the Standard Bolt element. This has the attributes:

  NSTD	-	a pointer to a non-standard length array
  BITEM	-	additional bolt items to be used when calculating bolt length
  BITL	-	the lengths of the additional bolt items

• LTAB - the Length Table holds a number of Diameter Tables.

• DTAB - the Diameter Table stores information on standard bolt lengths, held as a string of values in its BLEN attribute. DTAB is accessed from the NSTD attribute of the SBOL element.