Questions about pipeline pressure rating
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The pipeline numbers on the flow chart are: 20-P31026-9SX05; 12-P32008-2SX04. The suffixes 9SX05, 2SX04, 3SX03 at the end of these numbers indicate the pressure rating of the pipelines. This is the first time I’ve seen this notation style, so I would like to know what the pressure values correspond to for each of them. Is there a table?
Go and check the project’s material specification sheet, the pipe class specification, or the title page of the schematic diagram, the P&ID Legend.
When looking at a flowchart, the first things to examine are the legend and the instructions; for symbols that are not standard numbering symbols, there are definitely corresponding explanations
There is a legend explaining it; it is said to be the pipeline pressure rating, but it does not specify which exact level of pressure. . .
I’ve checked the design specifications; these are all practices followed by the design firms, not **standards** or industry standards
Look at the overall process piping instructions; there are detailed markings on them. With something like this, it’s impossible to give an answer
Look at the explanations in the basic design documents for your pipelines. The suppliers of various process packages use different coding for pipeline numbers.
As mentioned above, it’s necessary to check the homepage image and so on