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Rotating cover manhole

2012-03-28View Original

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Under what circumstances are rotary cover manholes used? ，。 ，。 ，。 ，。 ，。 ，。 ，。 ，。 ，。 ，。 ，。 ，。
Reply #22012-03-28
Rotary lid manholes are suitable for spaces with limited space, as mentioned in HG/T20583-2011
Reply #32012-03-28
It seems to me that in the case of manhole flanges mounted on the enclosures of vertical equipment, an inclined surface is also required. If a hinged cover is used, it could cause people to fall, posing a safety risk; in such situations, a rotary cover should be chosen instead

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Translated at 2026-07-25 18:37:47

Original: https://bbs.hcbbs.com/thread-980075-1-1.html

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