Use of pressure vessels
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A pressure vessel is currently in use, and the medium, temperature, and pressure under operation differ from those specified in the design – are any procedures required? Which standards, laws, or regulatory requirements impose such demands? Please help, thank you!
In TSG21-2016, P46.5.2 covers modification and major repairs. You have changed the operating parameters, the medium used, the purpose, etc. For the procedures, see clause 5.1 above.
It should be classified as the modification and repair of pressure vessels
Dear owner, don’t listen to the nonsense written above; pressure vessels that fall within the scope of the \"Catalogue of Special Equipment\" require procedures such as obtaining a use registration certificate, while those not listed in the catalogue are not subject to any regulation. Changing operating parameters refers to going beyond the ranges permitted by design or approved for testing; using them within those ranges does not constitute changing operating parameters at all, as it is allowed. The parameters governing the operation of pressure vessels also keep changing; you can’t just decide to carry out modifications just because the temperature rises a few degrees in summer
It depends on how you make the changes regarding the medium used. If the design specifies R717 or R22, then when switching between these two mediums, make sure that they meet the relevant regulatory standards. If your design originally used air and now it’s changed to nitrogen, it depends on your preference; anyway, I’ve never seen anyone do this.
Operating parameters are defined as a range, and variations within that range cannot be considered modifications; otherwise, all equipment in China would be undergoing continuous illegal modifications and being used illegally.
So you need to ask the original poster what exactly the difference is that he’s talking about. Changing the medium’s temperature and pressure usually means it’s being used for something else
It’s excessive for the 5th floor to say things like “The person in charge shouldn’t listen to the nonsense from above.” If it falls under the category of renovation, what the 2nd to 4th floors said is completely correct.
The original poster had better explain the situation in more clarity and detail. Otherwise, there’s no way I can help you