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English Translations » 【静设备】 » HG/T21518-2014: Which 6-kilogram flange should be used for m

HG/T21518-2014: Which 6-kilogram flange should be used for manhole covers?

2022-03-07View Original

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According to the HG/T21518-2014 standard for manholes, the upper flange specified is 20592-09. However, for the flange standard 20592, there is no DN600 size available for necked flat-weld flanges. The flange standard with a pressure rating of 6 kilograms for manholes of size 600 is not available; which one should be chosen? Should we still use the 10-kilogram flange size specified in 20592-2009?
Reply #22022-03-08
It is recommended to use PN10 grade

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Translated at 2026-07-23 17:51:32

Original: https://bbs.hcbbs.com/thread-3309028-1-1.html

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