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Labeling issues in PID diagrams

2019-09-06View Original

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The pipeline drawings from Sinopec East China Design Institute lack legends, and it’s not possible to determine the meaning of F7, G10, and B19 in the boxes below. Please advise
Reply #22019-09-06
Flange, gasket, bolt; the number follows
Reply #32019-09-06
Watch it a few more times and you’ll understand; there are serial numbers on the picture, right?:lol
Reply #42019-09-06
Also, this is called a piping ISO diagram, not a P&ID diagram. P&ID, including P=Piping and Instrument control.

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