Design pressure
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Why must the design pressure of pressure pipelines be greater than or equal to the design pressure of pressure vessels? Is the operating pressure of the container lower than that of the pipeline?
There’s no such requirement, right? A few days ago, the design institute came for a discussion and also mentioned this issue: the pressure of the equipment can be higher than that of the pipes. However, during the review, the experts required them to make changes, stating that the pipeline pressure could not be lower than the pressure of the equipment. I don’t understand.
Basically, the design pressure for pipelines is supposed to be higher than that of storage tanks. Pipelines lack any kind of buffer; they are subjected to pressure as soon as the pump starts operating. In contrast, storage tanks always have some buffer space, unless they are filled to capacity. Therefore, it makes sense that the design pressure for pipelines should be higher than that of storage tanks