Hi,
I want to build a process dealing with non corrosive gas where the valves will switch their positions every hour (max). So in order to minimize the energy consumption, I was wondering if there is any kind of valves which require energy only during the position switching and not during all the time where the valve is open (if the valve is normally closed)
Regards
I mean like an actuated on/off valve which will stay in the last position (on or off) when no current is applied, so with no "normal" position
Dear Sebastien,
Yes valves can be set up to only use power to open and shut them. Even that power requirement can be eliminated by replacing the controller with operator carrying a wrench. But power required to switch valve positions is not normally a significant part of the energy required for most processes that I am familiar with,
Valves usually cause additional pressure drop across the line they are in and as a result cause a pump or compressor to work a little harder (and consume more power) than they would need to if there was no valve.
I think we need a better description of he process in order to determine the impact of a valve choice on the overall energy requirement for the process.
I Hope this his helpful;.
Best Regards
Rick
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