You will not find a legal, full version of PipePhase available for public download.

Links seamlessly with other tools like the PRO/II process simulator and Microsoft Excel via the SIM4ME Portal. Step-by-Step PIPEPHASE Tutorial

To effectively learn PIPEPHASE, you can access various training manuals and tutorial documents that cover everything from basic installation to complex network simulation. Available Tutorials and Guides

Sites claiming to offer a "PipePhase tutorial download" (often bundled with a cracked installer) are almost always: