DIn this example we will add trunnions onto elbows (aka stanchions) in a line of 12"STD piping. If the trunnion is a pipe section users have the option to define and model it as either a structural pipe section which will not be code checked for stresses, or define it as a pipe section which by default will be code checked.
First, we will import an 8"STD section of piping using Define>Pipe sections and Define>Pipe property sets as covered in the CSiPlant tutorial and other sections of this Wiki. When defining a Pipe property set for the trunnion, make sure there are no contents as the trunnion support does not carry fluids.