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English Translations » 【管道阀门技术圈】 » In a P&ID diagram, how are various valves numbered?

In a P&ID diagram, how are various valves numbered?

2017-09-26View Original

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I would like to ask everyone: on P&ID diagrams, self-acting control valves are denoted as TCV, FCV, etc. So how are pneumatic control valves numbered – as TV and FV? If so, then how is the pneumatic ball valve coded? Finally, how is the breathing valve coded? I’d like some advice.
Reply #22017-09-26
The numbers of pneumatic control valves such as TV, FV, LV, PV, etc. should match the corresponding measurement parameter tag numbers. Refer to the standard HG/T20505-2014.

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Translated at 2026-07-21 04:22:15

Original: https://bbs.hcbbs.com/thread-1847150-1-1.html

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