Let’s think about it and ask everyone: is a working pressure of up to 9.5 Mpa and a design pressure of 10 Mpa acceptable?
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Let’s think about it and ask everyone: is a working pressure of up to 9.5 Mpa and a design pressure of 10 Mpa acceptable?
It is possible; the design pressure of 10 Mpa is higher than the maximum operating pressure of 9.5 Mpa, thus meeting the safety requirements. .
If there is a safety valve, the selection of the design pressure should be based on the appendix of GB150.1; if there is no safety valve, then there are no strict requirements, but the chosen value will still be on the low side.
The design pressure need only be no lower than the operating pressure. However, considering factors such as airtightness testing and safety accessories, there needs to be a pressure difference; otherwise, it is not possible to design the pressure for the safety accessories
Without safety attachments, it should still work
It is indeed a bit too small; it’s too close to the level of work stress
Okay, I just feel it’s too close
It is possible without a safety valve. For specific details, the poster can refer to Table 4.0.2 in HG/T20580-2020 to make the determination.
It is sufficient if the design pressure is higher than the maximum pressure; it is recommended to consult the regulations regarding pressure vessels and consider the volume – values above 10 MPa fall into a different category and require special registration.
The answer first: Not necessarily. The design pressure depends on various factors, such as operating temperature, properties of the medium, and working environment. Focusing on pressure alone is inappropriate and unsafe.