Is the nominal pressure of the flange for equipment connection identical to the nominal pressure of the pipeline it is connected to?
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This post was last edited by wpw121 on 2010-6-24 at 13:29. Is the nominal pressure of the flange used for connecting the device the same as that of the pipeline it is connected to? Is the former one a grade higher than the latter?
We use a pressure of 6 kilograms, with both ports designed for a pressure of 16 kilograms
Comrades, let’s talk about it – is this topic really meaningless?
Reply to 1# wpw121: The flanges are generally the same, but the pressure rating of the pipes may vary. The pressure rating of the equipment connections is usually higher than that of the pipe system
It is the same in most cases, but sometimes it differs. Firstly, for custom-designed equipment produced by this company, the flanges at the pipe ends are determined based on the process requirements, and they must match the pipeline grade specified in your flow diagram, unless you have special requirements. If it is a fixed-type device, it might differ, but in most cases it’s pretty much the same. The advantage of setting equipment is that it comes with matching flanges, so no additional flanges are generally required. If the pressure rating of the equipment flange differs significantly from the flange pressure rating specified in your pipeline standards, then you need to be careful. First, conduct a calculation, and then modify the side that has the issue.
They can be the same or different; sometimes, due to standard requirements, it is necessary to use flanges of a higher grade. For example, in the case of spherical tanks, it is important to pay attention to the matching of flanges