Can the purging and pressure testing step be omitted?
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Can the purging and pressure testing step be omitted? In the construction of engineering projects, in order to speed up the project timeline, can the purging and pressure testing step be omitted? If it cannot be omitted, then what should be done? It seems quite complicated – where does the air used for purging come from, how are the pipes connected, and what is the sequence of purging? Whether to use water or gas for pressure testing, and how to connect the pipes – these are all issues. . If this task is to be carried out seriously, it is likely that a written plan will need to be prepared. However, it seems that the effort isn’t worth it – it’s too complicated, especially when a thorough and detailed approach is desired, covering every pipeline and every piece of equipment. . . Also, should this work be done by the construction team or by the project owner?
It is essential; otherwise, it could severely impact production. Such programs are already well-developed; just find a similar project and make some modifications
I saw the workers on site preparing to use a hose with a diameter of 12 mm for purging and pressure testing – it’s ridiculous! With all those devices and pipes, and such large diameters, using such a small hose… Do you think it’s meant for supplying instrument air, or is it used to blow away dust from one’s clothes?
It’s also possible to check whether the pipelines are connected; for example, some temporary blind flanges or rubber gaskets used to prevent dirt from getting in might have been forgotten and not removed； It is possible to apply pressure and then release it, performing oscillatory purging.
It would be great if someone dares to sign. But who would wear a thunderhead? According to the contract, it is usually the construction party that carries out these tasks, with the approval of the project owner. But in the end, it still has to pass the inspection.
To be completed jointly by both Party A and Party B. There must be a written plan. First the parts, then the whole.
System pressure testing and purging are both essential after the installation of the equipment; otherwise, it will pose safety risks of varying degrees to the equipment and instruments. In particular, system pressure testing is an effective way to assess the tightness and strength of the equipment and pipelines, and it must not be omitted or ignored, as failing to do so will result in significant operational risks for the facility! In terms of division of labor, the developer takes the lead in planning and implementation, while the construction party provides support.
Blowing is an essential procedure after the pipeline installation process is completed; it removes slag, electrode stubs, iron oxide, and spatter from the pipes. Failing to carry out this step can lead to varying degrees of damage to the valves in the pipelines, as well as contamination of the materials transported.