LOOSEFLANGEALLOWANCE

Function:

Allows the user to specify an additional length of tube on cut tube to compensate for field-fitted welds and loose flanges, where the ALLO attribute has not been set.

Description:

If a cut pipe list has been specified using the CUTPIPELIST command, Isodraft automatically includes a site fitting allowance in each calculated cut pipe length which terminates in:

• A flange with its LOOSE attribute set to TRUE (that is, a loose flange)

• An element of generic type WELD which has the symbol key WF (that is, a field-fit weld)

The allowance is taken from the value of the ALLO attribute for the weld or flange, if set. If the value of ALLO is not set (or zero), the allowance defaults to 150mm. The default allowance can be altered using the LOOSEFLANGEALLOWANCE command.

The fabricator and/or erector can be informed of the in-built allowance by means of a message in the title block area.

Note: The dimension shown on the isometric drawing is the actual designed dimension.

Examples:

LOOSE 4 INCH

Adds 4 inches to tube length for each field-fitted weld or loose flange with no ALLO value set.

LOOSE 0

No additional tube length added for field-fitted welds or loose flange.

Command Syntax:

>--- LOOSeflangeallowance --- <uval> --->

Querying:

Q LOOSeflangeallowance

Q OPTions