Minimum Tube and Rod Lengths and Maximum Bend Angles

Note: All references to pipe components and tube in this section apply equally to hanger components and rod.

In order to warn you about potential problems in the practical assembly of pipework sections, the data consistency checks output a diagnostic message if the length of tube joining any pair of components is less than a prescribed minimum. The minimum allowed will normally be dependent upon the tube diameter. An incorrectly positioned ATTA (off the implied tube) may also give rise to a ‘minimum tube length’ error.

You will also be warned if the design angle for a variable-angle bend or elbow exceeds a prescribed maximum.