At the end of my last article, “AutoCAD® Plant 3D and P&ID 2017.1 & 2018 - Spec Driven P&ID Project”, I mentioned that I would next tackle the addition of Pinch, Knife and Rotary Valves to both the P&ID Pipe Spec Object Mapping and the Plant 3D P&ID Object Mapping. In case you do not recall, the reason we need to cover this for the P&ID Spec Driven Project is because those valves are on the tool palette but as seen in this image they do not have a background hatch. If you look back at the previous article, in the Project Settings, I pointed out that the pinch valve was displayed in grey text because it had not been mapped. The same is true for the knife and rotary valves. Since they have not been mapped, the spec verification ignores these components and treats them no different than it would equipment, instrumentation or other components that are not in your specifications.