12v Water valve Solinoid
Submitted: Thursday, Oct 09, 2008 at 06:29
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Boobook2
Has anyone come across a supplier of 12V solinoid taps to open or close a valve so I can join 2 tanks and still keep them seperate if I want to. They currently have manual taps on my van set up, but
the spot is really hard and dirty to get to and I would love to select the tank with a switch.
I have tried google and most, like the ones used for irrigation and domestic sprinklers are 24VAC. Also tried a few caravan suppliers whi don't have such a beast.
Any make / model / supplier / alternative solution would be appreciated. Thanks in advance.
Reply By: JR - Thursday, Oct 09, 2008 at 06:57
Thursday, Oct 09, 2008 at 06:57
Look for solonoids from Sprayer companies - www.mrnozzle.com.au or someone like it
Be aware these use a suprising amount of power when open
JR
AnswerID:
329008
Reply By: Member - Troll 81 (QLD) - Thursday, Oct 09, 2008 at 07:12
Thursday, Oct 09, 2008 at 07:12
Hey,
I am pretty sure that irrigation solenoids are 24v and there is a transformer that takes it down from the mains voltage but there might be some 12v models around or you could just get something that will change it to 24v from your 12v. I stumbled across these guys
Solinoid
AnswerID:
329009
Follow Up By: Member - bungarra (WA) - Thursday, Oct 09, 2008 at 10:23
Thursday, Oct 09, 2008 at 10:23
its not that simple as irrigation solenoids are 24v ac
FollowupID:
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Reply By: Member No 1- Thursday, Oct 09, 2008 at 07:42
Thursday, Oct 09, 2008 at 07:42
else try a 240V with a cheap inverter
AnswerID:
329012
Follow Up By: Member No 1- Thursday, Oct 09, 2008 at 07:45
Thursday, Oct 09, 2008 at 07:45
12 volt stuff
here
FollowupID:
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Follow Up By: Boobook2 - Thursday, Oct 09, 2008 at 11:03
Thursday, Oct 09, 2008 at 11:03
looking workable. I will buy one as a test. The switching might be a pain and the 12v ones are bi stable so may vibrate open. Will see.
Thanks
FollowupID:
596347
Reply By: Member - bungarra (WA) - Thursday, Oct 09, 2008 at 10:32
Thursday, Oct 09, 2008 at 10:32
be careful when choosing your solenoid type as the majority of the irrigation solenoids will not open correctly unless they are under mains pressure...even though they are receiving the current to open ....the pressure on the coming in side is required to overcome the magnetism
in other words if you use the standard irrigation solenoid (24v ac) and are able to change the coil to 12v dc then it may still not work as I gather you want to connect the two tanks to allow for gravitional flow between them..wont work
if you get the little black poly solenoid valve like you see for the trickle irrigation systemes..the ones with the barbed end for pushing into a 19mm hose these will open under mimimal pressure but they are still 24v ac
why dont you just offset a small 12v pump easily accesible and transfer between tanks?...simpler
AnswerID:
329039
Follow Up By: OzTroopy - Thursday, Oct 09, 2008 at 10:50
Thursday, Oct 09, 2008 at 10:50
There may also be a small, affordable bilgepump available from marine outlets.
FollowupID:
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Follow Up By: Boobook2 - Thursday, Oct 09, 2008 at 11:02
Thursday, Oct 09, 2008 at 11:02
A pump arrangement is my back up plan. Good advice about the pressure and opening restrictions.
The ones above that can run on 12VDC are bistable ie can switch with a short voltage burst so that is good for the current but I am worried that they may change with vibrations. I will buy one and check it out for that and low pressure.
The reason I don't want to pump one
tank to another is so I can have one
drinking water and one "whatever we can get" if necessary.
FollowupID:
596346
Follow Up By: Member - Graham H (QLD) - Thursday, Oct 09, 2008 at 12:45
Thursday, Oct 09, 2008 at 12:45
You could always lengthen the pipes and put the manual valve in a more accessible place
FollowupID:
596358
Follow Up By: Member - joc45 (WA) - Thursday, Oct 09, 2008 at 16:09
Thursday, Oct 09, 2008 at 16:09
You're right about the mains pressure; the solenoid only operates a servo diaphragm, which relies on mains pressure.
I had dual fuel tanks in my old Maverick, and there was a 12v changeover solenoid valve in that which didn't require pressure, and it didn't draw all that much current when operated. Not sure of the source, but obviously, they do exist.
Gerry
FollowupID:
596375
Reply By: Member - Paul W (VIC) - Thursday, Oct 09, 2008 at 20:10
Thursday, Oct 09, 2008 at 20:10
i dragged a 12v solenoid out from under
the bench just days ago,will check to see what brand it is and repost.
AnswerID:
329116
Reply By: mark I - Thursday, Oct 09, 2008 at 20:46
Thursday, Oct 09, 2008 at 20:46
I have been using the 24 volt solenoid's on our spray equipment for years running from 12 volt tractors without any problems
Pressure ranges from 15 psi to 100 psi. we put chemicals through them and they seem to last a couple of years. About $25 each from a rural supply outlet that sells spray equipment. Silvan outlets. Here is what i use.
http://www.silvanagcess.com.au/cgi-bin/silvan/search_name_call.cgi?no=1067&prod_div=3
AnswerID:
329126
Reply By: Member - Murray R (VIC) - Thursday, Oct 09, 2008 at 21:42
Thursday, Oct 09, 2008 at 21:42
Boobook2
Hardi is another brand of ag spray unit they also use 12 volt solenoid valves that draw little current as they are continiously rated. A ag supplier that sells farm machinery should have then
Murray
AnswerID:
329137
Reply By: wheeleybin - Friday, Oct 10, 2008 at 07:42
Friday, Oct 10, 2008 at 07:42
www.burkert.com.au
They make a range of DC solenoids for
water and other uses and the main thing you have to be sure of is the
seat is capable of supporting the fluid you use.
They are not cheap but with a gravity feed a broken line and a loss of your main fuel soon outweighs the cost of the valve.
Ian
AnswerID:
329181