some exists integration among PVelite and PDMS?

Emerson,

There is not direct interface between PV Elite and PDMS. But, using the CADWorx Equipment product from our company, you can export the vessel in to AutoCAD environment. It is saved as *.dwg file format. Then, you might be able to import the AutoCAD file in to PDMS.

In AutoCAD format, it keeps the intelligence of the vessel (diameter, thickness, nozzles etc.) In PDMS format you will probably only have the geometry.