Do solenoid valves and flow meters need tag numbers?
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Are tag numbers required for electromagnetic valves, flow meters, pressure gauges, and level gauges installed on equipment, facilities, and pipelines? Are there any relevant standard requirements?
Of course, it's necessary for visual management
We didn’t add any ourselves; the dedicated solenoid valve and flow meter come with nameplates at the time of manufacturing. The standard solenoid valves do not have any additional markings
Should some local pressure gauges and level gauges be added as well?
Is this **mandatory? Are there any corresponding standards and regulations?
Valves, flow meters, pressure gauges, and level gauges installed on equipment, facilities, and pipelines should be labeled with tag numbers to facilitate management and maintenance; such labeling is required even in the absence of specific regulatory mandates.
Tagging with identifiers is mainly used for separate management; in the case of automatic systems, it’s best to include identifiers for control purposes, though they’re not necessary if not required, but including them facilitates management