Reef safe Solenoid valve. WHere to get them??
 

I'm building a PLC controlled ATO for all my tanks. The goal is to have independent RO/DI fill control for my 4 tanks out of a reservoir, and control the RO/DI unit to auto flush and fill the reservoir. The Float switches I have seen, and aquired before on Ebay(If anyone has a bunch to sell, I'm looking) But where am I to get 120V solenoids that will be reef safe??? I estimate I will need atleast 6 of them, so hopefully they are not $50ea+ LOL

Thx for your help

I used a sprinkler controll valve (for automatic sprinkler systems) picked up at local plumbing shop for $25.00 only runs on 12v dc works like a charm (all plastic, no metal) best part is it needs power to open so if anything fails it fails to the closed position avoiding floods or pumping too much water into your system.

Why not use low voltage inputs or magnetic switches to the PLC and 115 outputs out of the water.

Which PLC.

I have a Siemens LOGO I want to run for the water sys. Working on a AB SLC500 for the main tanks lighting etc too, Mayby, maybe Omron, I dunno. I just don't feel the need to have to run relays and a separate 24v elec sys for in tank stuff. Space is ALLWAYS a premium, that most people know. All the pumps are 110, the float switches, well, the ones I have are sealed really well, no worries on voltage leakage. I will be controlling 4 tanks ATO and the Res Fill /RO unit off the LOGO controller.

IF 24v are substantiallly cheaper, then I may put in a rack of relays.

Don't LOGO's typically run on 5v to 24v inputs? I use prox switches rated for those parameters.

*tagging along*

I'm interested in reef safe solenoids for a different reason though... I may want to use them to do a surge system. Can anyone post a link to some reef safe solenoids if they've seen them online?

LOGO's are either 12/24 or 120/230. I got a 230 RL for a steal on ebay. Might have some more 230 RC's coming too. RC's have a clock and calender in them. You could do Lighting cycles with a RC. Thats the next plan :D

so why not just put in a GFCI breaker to supply the solenoid power supply....and done....or am I missing something?

check these guys out.....

http://www.ascovalve.com/

Thanks, very helpful... I don't think I'll be able to find a 1" solenoid for corrosive fluids though :wink: They do have a 3/4" one but part of the housing on it is brass.

They will have anything you need for any application....teflon ....stainless....they got it all

Nothing to do with GFCI, in fact, I dont run them. Just more personal preference

But I am just looking for 1/4" solenoids, 120v that can be used for the RO water and won't contaminate it. May have found some with www.plastomatic.com

Asco also has plastic body valves.....you name it


here is the catalog.....and they are great people to deal with

http://www.ascovalve.com/Application...o_catalog.aspx

Cool I'll check the catalog. If I can find a suitable solenoid, I'm going to try it for my surge system. Thanks very much! :biggrin:

I like rainbird valves. You can use your own controller, or any sprinkler controller they make.
http://www.rainbird.com/golf/products/valves/pesb-r.htm

Asco way to expensive and Rainbird looks like they only offer larger valves, 1/2" and above???



One question, Is Stainless OK for contact with the RO/DI??? I have found lots o little stainless valves that might work great

These guys sell a 1/4" solenoid with john Guest fittings on each end. I've used them and they work perfectly well.

http://www.fishbowl-innovations.com/product/solenoid

Very nice!! I think my rodi is getting an upgrade!

Mine too LOL
Thanks Brad.:smile:

Thanks Brad! Thats just what I've been looking for!! :biggrin:

Group buy for discount .... ?

I'd be in for that :biggrin:

edit: I sent them an email to see what kind of discount we could get and the minimum number of units.

any idea if the fishbowl solenoid can be used with gas (CO2)?

If the discount is good, I'll be in for a bunch, 5+ Might have a couple other avenues too. I have found some manufactures of vales like these. Just waitin on email replies. If I can get them form a OEM for cheap, you bet I will be ordering lots for everyone. Hmmm, custom water level control buisness???

McMaster (from a post on RC)

Unless they changed, McMaster wont ship to Canada. I tried when I was building my Powdercoating oven. Grrrr....

Model 7877K2 (Avail 1/4" with 12vdc) for $23.61 is a good deal!

The solenoid sold on fishbowl-innovations is from Dema Engineering. Model P462 = 1/4", P463 = 3/8" .. wonder if dema would let someone buy direct?