Whether the long-neck flange of pressure vessels is equipped with a short section

2018-03-30View Original

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Clause 6.5.2 of NB/T47021 stipulates that long-neck butt-welded flanges must be connected to a section of tube segment. But I’ve seen that in many cases, especially with heat exchanger tube boxes, long-neck butt weld flanges are used to connect directly to the head – is that acceptable?

Reply #22018-03-30

Please refer to https://bbs.hcbbs.com/forum.php?mod=viewthread&tid=1214619&extra=&page=1

Reply #32018-03-30

Thank you:handshake

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Whether the long-neck flange of pressure vessels is equipped with a short section

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