For the control valve FOL, it remains in its set position when there is no air flow; so what is its state when power is cut off?
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This post was last edited by Yu Wei on 2020-2-14 at 11:01. The control valve FOL has an opening degree of 50; it remains at this level when the air supply is stopped. What is the state during a power outage when there is no wind, and what is the state during a power outage when wind is present?
Personally, I think: 1. The design must meet the process requirements; 2. In the event of a sudden power outage, the valves generally lack the energy needed to operate, so they should remain in their position before the power went out. If the process requirements dictate otherwise, then appropriate design measures need to be implemented；