12V Water solenoid valve

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Joined: Fri Sep 01, 2017 8:15 am
Location: Severna Park, MD
PostPosted: Fri Sep 22, 2017 3:21 pm
New to RA here and I'd like a little advice on how to operate a 12V 3/4" water solenoid valve.

I have plumbed my tank to so that I have a (semi) permanent siphon in order to perform no bucket water changes into a deep sink in an adjacent room from my setup.

I have purchased a Reef Angel Star controller and would like to know the best (proper) way to operate the valve. I'm still searching for the current draw of these valves on Amazon, but that doesn't seem to be listed in the descriptions.

I see four options, but not sure which is correct (if any):

1. Valve wired directly to an I/O port. (I/O expansion module???)
2. I/O port wired to a relay and a separate power source to operate the valve. (I/O expansion module???)
3. Wire the valve to a port on a Power Control expansion module.
4. Wire a relay to a port on a Power Control expansion module and, as in 2, a separate power source to operate the valve.

Any advice would be greatly appreciated.
Try to learn something about everything and everything about something... Thomas Huxley
210gal DT, 50gal sump, Jebao DCP 10000 return (just water for now), DIY built stand.

Posts: 11927
Joined: Fri Mar 18, 2011 6:47 pm
PostPosted: Fri Sep 22, 2017 4:43 pm
can you use a socket on the relay box?
Plug a 12vdc power supply to activate the solenoid.
Roberto.
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Posts: 8
Joined: Fri Sep 01, 2017 8:15 am
Location: Severna Park, MD
PostPosted: Sat Sep 23, 2017 2:44 am
Thanks Roberto. That'll work. To drain water, I'll be opening two of these valves simultaneously; both can be on the same power supply. Additionally, for the fill, it'll be a solenoid valve and a pump and I can use the same method. I'm thinking I'll need more than 8 outlets anyway so a Relay Expansion wouldn't be extra. :)

And I did see these posts:

viewtopic.php?f=3&t=6477&p=54922&hilit=Power+Control+Expansion#p54922

viewtopic.php?f=7&t=6349&p=54228&hilit=Power+Control+Expansion#p54228
Try to learn something about everything and everything about something... Thomas Huxley
210gal DT, 50gal sump, Jebao DCP 10000 return (just water for now), DIY built stand.

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