In the flange pressure and temperature comparison table, do pressure and temperature refer to design parameters or operating parameters?
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The working temperature is 250℃, the design temperature is 300℃, the working pressure is 0.87Mpa, the design pressure is 0.96Mpa, and the material is 16Mn. What pressure level should I choose? Ask for answers
Choose P27, 16kg class.
Select according to your design parameters, not based on working parameters.
What you provided is gauge pressure, but the design selection should be based on the maximum allowable working pressure. This standard is a bit confusing.
It should be the design parameters. The table attached by the poster cannot meet the design parameters.
If it cannot meet the design requirements, take a look at the data of PN25
Please tell me, what is the correct design process for this kind of problem? The first is how to screen useful information, the second is how to secondary process useful information as design conditions, the third is how to design and which specifications to refer to, and the fourth is how to judge whether the design requirements are met. I hope to be able to answer them one by one and give a more rigorous design process for your reference.
According to the design parameters, 25% of the allowable stress needs to be reserved for the GC1 pipeline.
I don't know whether you are the designer or the user. Pipes generally comply with 20801, and different types of standards are also different.