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English Translations » 【管道阀门技术圈】 » Which standard should be referred to for selecting the bolts

Which standard should be referred to for selecting the bolts and nuts of jacket flanges?

2019-04-04View Original

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Which standard should be referred to for selecting the bolts and nuts of jacket flanges? Are there any specific specifications for bolt length?
Reply #22019-04-04
What is a jacket flange? Loose flange? It is specified in HG/T20613
Reply #32019-04-06
Are you referring to reducing flanges? For example, DN50/100 means the inner diameter of the flange is φ50, the outer diameter is 220 (for DN100-1.6Mpa), and the bolt hole diameter is 180 (for DN100-1.6Mpa)… Is that what you mean? If so, simply use the bolt and nut dimensions for DN100
Reply #42019-04-07
Just follow the standard corresponding to the flange you have chosen!

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Translated at 2026-07-21 04:16:49

Original: https://bbs.hcbbs.com/thread-2637036-1-1.html

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