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Use of electric ball valves

2010-10-16View Original

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Electric ball valves have the following operating states: R or L, M or A. Can’t the opening be adjusted manually in R mode? In state L, can the opening degree only be adjusted when it is in state M? Please provide a detailed explanation.
Reply #22010-10-16
It can be operated manually even after a power outage; when there is power, there’s no need to operate it manually
Reply #32010-10-17
By manual, I mean operation in the local mode, with live electrical power. Is it necessary to turn off the power for completely manual operation?

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Translated at 2026-07-24 23:10:46

Original: https://bbs.hcbbs.com/thread-746171-1-1.html

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