Expert, could you help check if there’s something wrong with the nameplate?
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Expert, could you help check if there’s something wrong with this nameplate? The modified equipment does not have a safety valve; would it be better to allow the operating pressure to be higher than the design pressure? Also, should the hydrostatic test pressure be calculated based on the maximum allowable operating pressure or the design pressure?
Design pressure > Test pressure > Maximum operating pressure
The maximum operating pressure indicated on this nameplate is likely not specified in the design drawings; the manufacturer used a slash to indicate that no requirement exists. It’s not 1.0MP. The pressure for the withstand voltage test is calculated based on the design pressure
There’s a slash for the maximum operating pressure; it should be left empty, theoretically
There should be no problem with this; the hydrostatic test is carried out based on the design pressure
For us, the maximum operating pressure is the design pressure, and the hydrostatic test is carried out based on a design pressure of 150
There is no problem with the nameplate: This device does not have a safety valve, so the maximum allowable operating pressure is taken as the design pressure. The hydrostatic test pressure is calculated based on the design pressure.
Now his maximum allowable operating pressure is higher than the design pressure.
【Maximum design pressure】 is a slash. If not, then it should be 1.0 MPa.