Instrument conditions: Design temperature and design pressure are determined.
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Hello everyone: As the title suggests, when the process engineering department puts forward requirements to the instrumentation department, it comes to the design temperature and design pressure for the instruments. Given the maximum operating temperature and maximum operating pressure, what is the relationship between the design temperature and design pressure, respectively, and these maximum values? For example, by how much is the design pressure higher than the maximum operating pressure? How was it determined? I hope any fellow travelers who know the answer will kindly share their insights.
The design pressure is generally 20% higher than the maximum operating pressure...
According to the proposal of 20570, the temperature and pressure in the same pipeline.