Can electric ball valves achieve a fault FC state?
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For the ball valves in power plants, is it possible to set up an FC fault shutdown function? Why? Thank you!
I’m not very familiar with control systems. In the case of an electric ball valve, in a fault condition such as a power loss, it becomes impossible to drive the ball valve to close. Is it then necessary to have another set of power-driven devices available?
I’m not very familiar with control systems. In the case of an electric ball valve, in a fault condition such as a power loss, it becomes impossible to drive the ball valve to close. Is it then necessary to have another set of power-driven devices available?
It’s possible, but dual power supply is required; check GB50770
This can use a dual-cylinder valve to control the valve state in the event of a failure and loss of air pressure