Power controlled Valves

[Xadhoom]

I found i really would like to be able to use controlled valves. Both NC or NO would be great so i can chose which to use, for best power performance.

uses i can see is to regulate water levels in reservoirs or equalize pressure in settlement when you are producing less then optimal oxygen. an atmo or hydro switch that switches said valve on/off with power cord.

[Moggles]

As a current solution you could try a filter in line before a valve. Use the existing pressure switches to toggle power to the filter. If it is powered down no substance will pass in to the valve.

[Kasuha]

Both can be made using filters. NC valve at the top, NO valve at the bottom. In the NO case you want to set the filter to something that will not come to it.

It is also possible to make a contraption where both switch to open and switch to closed state use only limited amount of power, but it's complex and needs to use one element as blocking medium. That one might deserve its own building with two power outlets, one to open, the other to close.