Specifications used in the pipeline material grade table
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As shown in the pipeline material grade table, how are the temperature and pressure determined for a specific grade? Are there any guidelines?
This temperature and pressure are determined based on the material of the pipeline. The specific determination is calculated using a formula. Flange equivalent formula.
Are there any existing standards that define the temperature and pressure of pipelines?
The design pressure and temperature are conditions specified by the process engineering team, used to calculate the pipe wall thickness and the pressure rating of flanges. The temperature value indicates that flanges with such a pressure rating can be used at XXX temperature under XXX pressure
I’m just asking whether there are standard definitions for flanges of this pressure rating that can be used at XXX temperature under XXX pressure
It’s simple; just refer to the flange temperature and pressure gauge
Some HG/T 201615-2009 standards correspond to the American standard ASME B16.5, while HG/T 20592-2009 standards correspond to European standards