PI Integrated Systems is a leader in providing easy to use plant design solutions for the process and petrochemical industry.

PI's FlexCAD family of equipment layout and piping design software provides highly productive 3D & 2D solutions to both owner/operators and EPC's in the design, construction and operations of process plants. 

Simply put, FlexCAD software was created by pipers for pipers. Our products have been used for over 11 years, by over 3500 of some of the most demanding pipers in the business. They have used and tested our products, and told us what they need to do their job better.

We listened, and the result is a family of products that work like you to fast track your design, and help you bring your projects in on-time and under-budget. The FlexCAD family of products includes FLOW, PIPE, ISO/SPEC, and STEEL and runs on AutoCAD R2000 through R2007.

Our piper friendly approach to development means that you can load the software and achieve productivity in 24 hours or less. Many of our customers have been introduced to FlexCAD through our free 30-day trial, and we are now offering you the same opportunity.