The following video is a new enhancement added to AutoPIPE V8i 09.06.00.15 with the ability to create a Ring Main (Circular Header) using a new wizard. See AutoPIPE online help for complete details on this new feature.
Tutorial - Ring Main Wizard
Michael Kelleher, European Boiler Manufacturer
"All in all I found the Ring Main Modelling feature a fantastic modelling improvement.
The user interface is good. The increased ease of use and reduction in output time is great. Most importantly the creation of circular ring mains is far more accurate than previously."