Which standard does the flange I need belong to?
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I’m seeking help from experts – I want to know which standard this flange belongs to. [Flange inner diameter: 100, outer diameter: 200, hole spacing: 165, thickness: 25] What the heck is this?
What type of flange is this? Looking at the parameters, they are quite similar; I don’t know the type, so there can be no difference
This post was last edited by COLORZERO on 2017-1-7 at 13:01. If I’m correct, it should be the sight flange
If it is design data, the standard number of the flange used should be specified in the overall design document. Listing such data makes it impossible to confirm.
You’re right; it is indeed the sight glass flange for the reactor. I’ve checked many manuals but couldn’t find out which standard it follows – HG or GB? Thank you
Decide for yourself whether to use the new standards or the old ones; HGT 21619-21620: Viewports for pressure vessels; NBT 47017-2011: Viewports for pressure vessels
Yes, there are many flange standards – electrical standards, chemical industry standards, national standards, and so on, each with its own corresponding standards