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English Translations » 【管道阀门技术圈】 » Are there any standards to refer to for official blind flang

Are there any standards to refer to for official blind flanges of DN600 and above?

2022-07-04View Original

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Are there any standards to refer to for formal blind flanges above DN600?
Reply #22022-07-04
The maximum DN for petrochemical blind flanges is 600; oil quick-opening blind flanges are available in sizes larger than DN600. For details, refer to SYT 0556-2018, Technical Specifications for Quick-Opening Blind Flanges
Reply #32022-07-05
Among the standards set by the Ministry of Chemical Industry, it seems that only in the American standard HG/T20623 for large flanges are there flange covers with a diameter exceeding DN600; I don’t recall any such provisions in the national standards.

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Translated at 2026-07-23 17:16:23

Original: https://bbs.hcbbs.com/thread-3366771-1-1.html

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