All pure pipe tray modules without valve accessories shall be connected together for pressure testing

Thread Content

Just like in school, whenever the poster takes a bath, all sorts of ideas come to mind{:3_69:} Recently, while carrying out pressure testing, I had a strange idea related to pressure testing while taking a bath last night; I’ve written it down for the experts here to give their feedback{:3_61:} Those of us accustomed to working with process modules usually connect pipelines with similar pressures and similar pressure-testing media together when conducting pressure tests. The preparation of the pressure testing packages is also carried out through subcontracting following these principles, which helps to protect valves, non-removable instrumentation, and other such components. But stepping outside this way of thinking, what if we only conduct pressure testing on the pipeline of the land-based process module (PAR)? The characteristic of PAR is that it has a very large number of pipes, no valves (or only a few if any), and no instruments (or only a few if any) ； Since the welding method used is the same, pre- and post-weld inspections have been carried out, as well as NDT and heat treatment tests, this means that the quality of the welds is consistent and meets the required standards. Could we consider joining together all the pipelines that do not have valves or instrumentation components for pressure testing, using the highest possible pressure for such testing? ； The most obvious advantage of doing this is that it greatly reduces the workload associated with preparing the pressure testing packages, and it also speeds up the pressure testing process in the construction department. {:3_53:} In this way, for a duct module, except for a few pipelines equipped with valves, all the remaining pipelines are wrapped together; pressure testing is completed in one go, with the pressure being set according to the highest pressure within them. The pipeline with valves only needs to be pressure-tested separately in the end. Dear HaiChuan experts, please take a look and see if it’s feasible{:3_60:}