Hello,
I look that in the release 2013 of Plant3D this problem is not solve.
When I create any element, elbow for example, and set the type of connection PL in both ports. Add it to spec, copy to project, update toolpalet, insert elbow... elbow work correctly: in properties both ports are PL.
After this I go to Spec Editor, open catalog, select this elbow, mark the option that all ports have the same options, and change from PL to SW for example. Substitute this modify elbow in the spec, substitute spec in the project, update the toolpalet, insert elbow. And in this case only is changed to SW the first port, the second is PL...
In 2013 release in case of valves is not hapen.
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Yury Bogdanov
ASIDEK(Grupo CT) - Partner Directo de Autodesk
Barcelona (Spain)