Brewery Keg Washer - Project Rec

i'm looking make keg washer controlled arduino. i've messed arduino briefly , have little experience type of stuff school don't know lot it. i've done plenty of pid controller type setups, nothing this. have 9 motor operated ball valves , 2 air solenoid valves i'll controlling. have uno controller got starter kit , looks i'll need relays in order hit power requirements ball valves (9-24v) , 12v 2 solenoid valves.

each of these process steps require opening 1 or more of valves , require turning on pump (120v 15amps startup, 9 running):

1. rinse keg water
2. purge water out of keg co2
3. pump cleaner through keg (non-caustic)
4. purge cleaner out of keg co2
5. rinse keg water
6. purge water out of keg co2
7. pump sanitizer through keg
8. purge sanitizer out of keg co2
9. pressurize keg

depending on keg size i'll have 2 different circuits of , ideally have 2 different buttons on front of panel start each size. 

can guys recommended controllers, relays , other parts need? if can recommend code great. once have example can fill in code needed control different valves.

thanks!
derek

quote from: dguggenb on dec 05, 2017, 07:42 pm

if can recommend code great. once have example can fill in code needed control different valves.

thanks!
derek

you test code on breadboard using led's show each state.

relay boards may not needed , simple fet's may depending upon exact requirements of each device.

edit

do ball valves need driven in both directions or have spring return when unpowered ?

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