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English Translations » 信息处理 » Issues with the swivel-type quick-opening manhole cover

Issues with the swivel-type quick-opening manhole cover

2009-03-09View Original

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The HG/T21527-2005 standard rotary cover supply quick-opening manhole is selected; the boiler inspection agency requires the installation of a safety interlock device. I’m not sure if it’s needed?
Reply #22009-03-09
Look at which boiler inspection agency it is!
Reply #32009-03-09
The idea is that it is best to take this into consideration, so as to ensure that the quick-opening manhole can only be opened under zero pressure conditions.
Reply #42009-03-09
It’s best to be able to keep it, and safety must also be taken into account

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Translated at 2026-07-28 04:05:45

Original: https://bbs.hcbbs.com/thread-409956-1-1.html

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