Water delivery system

[albitcaban]

Hi everyone,

So I'm trying to build a water delivery system for mice. The idea is that every time an input is received microliters of water will be delivered to the mouse. For this I'm going to need a solenoid valve to receive the signal and let the microliters come out. The output I'm using is for 28 volts but I can't seem to find any solenoid valve for liquid that works for 28v, most say between 12 and 24v. Would the 28v signal still work in those lower voltage solenoids or do you guys have any ideas of what I could do?

[LarryD]

"The output I'm using is for 28 volts . . ."

Then use 12 or 24v instead of 28.

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We really need to is what the output is from, a relay, BJT, MOSFET etc.

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The 28V can be converted to 12 or 24 volts then you can use a 12 or 24V solenoid.

[LarryD]

You could get a 200ml syringe and operated it with a geared motor or a stepping motor that is geared down.

OR a 300ml syringe:

OR a 500ml syringe: