Is a DN40 methanol pipeline considered a pressure pipeline?
Thread Content
With the new definition of pressure pipelines, where the nominal diameter has been changed from 25 to 50, 1. Does a methanol pipeline with DN40 qualify as a pressure pipeline? 2. Does 5 kg of compressed nitrogen with DN100 count as a pressure pipeline?
Which standard should be referred to for the classification of pressure pipelines?
I’ve been in this field for years, and it’s still all basic questions. If the moderators are at this level, how can the forum not be trash?
It is not a pressure pipeline. The definition of pressure pipelines can be found in the Catalogue of Special Equipment. The latest classification can be found in the \"Catalogue of Licenses for Special Equipment Production Units\", and the relevant TSG standards are still under revision.
According to the pressure pipeline design codes, the second one is definitely a pressure pipeline. First, it is necessary to check whether the temperature is above the standard boiling point; in other words, to see if gas is generated in large quantities within the liquid.
Pipelines under 40 should not require inspection
May I ask, who hasn’t gone through the process of moving from a beginner to an expert?…
You’re so skilled; then don’t be stingy. You’ve already written so many words of criticism – it won’t hurt to type a few more correct words either.
Study hard* to improve your knowledge and skills. Don’t get involved in other people’s affairs; you don’t have the right to challenge me right now
None of them are pressure pipelines; refer to the catalog of special equipment