Do pressure gauges and pressure transducers in pressure vessels require mandatory inspection?
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Safety Supervision (Shanghai) is under strong pressure this year to reform the regulations regarding mandatory inspections; there are specifications and standards specifying which pressure-containing devices in chemical plants require such inspections.
Anything on pressure vessels can be listed, but since a free inspection is required, the application submitted to the technical supervision department must be reviewed.
All require mandatory inspection; if an organization has the appropriate qualifications, it can conduct the inspection itself.
New regulations state that pressure transmitters do not require mandatory inspection
The pressure gauge must be sent to the quality supervision bureau for mandatory inspection. Pressure transmitters are generally not used
The pressure gauges on pressure vessels are subject to mandatory inspection; companies with the necessary qualifications can carry out this inspection themselves, while those without such qualifications must send the vessels to a specialized inspection agency