Structure-to-Pipework Connections

Piping models may be linked logically to the Structural model by means of cross-references between the Connection Reference (CREF) attribute of a Fitting on the Structure and the Head or Tail Reference (HREF/TREF) of a Hanger on the Pipework. A Fitting may be regarded, therefore, as the Structural equivalent of an Attachment Point (ATTA) in Pipework design.

For connection type compatibility, the Connection Type attribute (CTYA) of the Fitting must match the Connection Type (HCON/TCON) of the Hanger.