Dear all, Welcome to this post. I have a question. I have a main piping loop around a cylindrical vessel for which stress analsysis is dont and supported properly. Additonal six loops are to be installed in that main loop. This additional weight is coming on the main piping loop. The additional small size pipe loops are connected to the vessel nozzles. We need to support this additional load of pipe and valves. mY QUESTION is: Is it required to do the analysis for the main as welll as sub loop pipes? Or only additional piping loops can be modelled and analysed? Kindly suggest.