Invalid NPD Equivalency - Intergraph Smart 3D - Help - Hexagon

Intergraph Smart 3Dx Help
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English
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Intergraph Smart 3D
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3Dx
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Smart 3D Version
13.1

Meaning: No nominal piping diameter (NPD) equivalency rule was found to allow the two ports of different NPDs to be mated.

Recovery: Change the NPD on one of the ports, or modify the NPD Equivalency Rule data in the catalog.