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Solenoid Valve for Water Main NJ 07-14-2007
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Posted by mm on July 14, 2007, 7:35 pm

>And I think some
>areas now require a similar smaller device for the washer
>dryer connections,

My dryer failed and I had cold air all over the place. It took a lot
of time and water to wet things up again. <g>

>but it only opens the valves when the
>washer is pulling electric.
>
>google would be a good place to look ;-)
>
>-larry / dallas


Radiant Heat 468x60
Posted by hallerb@aol.com on July 14, 2007, 12:11 pm
> Hello,
>
> I recently installed an alarm system in my home and as part of the
> alarm system want to install a solenoid valve right after my water
> meter. This would allow me to have the alarm turn off the water when
> we leave the house (and forestall a diasater should a pipe break).
>
> I have looked up solenoid valves on Grainger and believe the one shown
> below will work for me:
>
> http://www.grainger.com/Grainger/items/3UK70
>
> My only concern is that there is no technical data if this valve is
> rated for potable water. Does anyone have any experience with this?
>
> Thanks

its normally closed and thus would require power any time you want
water. in a power failure no water either.....



Posted by Toller on July 14, 2007, 12:33 pm

>> Hello,
>>
>> I recently installed an alarm system in my home and as part of the
>> alarm system want to install a solenoid valve right after my water
>> meter. This would allow me to have the alarm turn off the water when
>> we leave the house (and forestall a diasater should a pipe break).
>>
>> I have looked up solenoid valves on Grainger and believe the one shown
>> below will work for me:
>>
>> http://www.grainger.com/Grainger/items/3UK70
>>
>> My only concern is that there is no technical data if this valve is
>> rated for potable water. Does anyone have any experience with this?
>>
>> Thanks
>
> its normally closed and thus would require power any time you want
> water. in a power failure no water either.....
>
Do you seriously doubt they have a standby generator already?



Posted by Jeff Wisnia on July 14, 2007, 12:55 pm
NJ wrote:

> Hello,
>
> I recently installed an alarm system in my home and as part of the
> alarm system want to install a solenoid valve right after my water
> meter. This would allow me to have the alarm turn off the water when
> we leave the house (and forestall a diasater should a pipe break).
>
> I have looked up solenoid valves on Grainger and believe the one shown
> below will work for me:
>
> http://www.grainger.com/Grainger/items/3UK70
>
> My only concern is that there is no technical data if this valve is
> rated for potable water. Does anyone have any experience with this?
>
> Thanks
>

I'm wondering what with the spec "Min. Flow Rate 11.2 GPM" in the
Grainger listing....

My curious mind wants to know what that spec means. Can someone in the
know elucidate on the subject?

Probably worth finding out before you go to the work of buying and
installing it, just to make sure that the valve will remain open when no
one is using water in the house, or if it close, that it will open from
closed when someone turns on a 3 gpm faucet.

And, if you do find it works as exspected it'd be wise to test it on a
regular basis just to make sure nothing has cruded up and keeps it from
closing when needed after a few months of inactivity.

Jeff

--
Jeffry Wisnia
(W1BSV + Brass Rat '57 EE)
The speed of light is 1.98*10^14 fathoms per fortnight.

Posted by dpb on July 14, 2007, 2:14 pm
Jeff Wisnia wrote:
> NJ wrote:
...
>> ...want to install a solenoid valve right after my water
>> meter. This would allow me to have the alarm turn off the water when
>> we leave the house (and forestall a diasater should a pipe break).
...

> I'm wondering what with the spec "Min. Flow Rate 11.2 GPM" in the
> Grainger listing....
>
> My curious mind wants to know what that spec means. Can someone in the
> know elucidate on the subject?
...

Well, I figured I could, but... :)

They're ASCO valves, so went to ASCO site w/ the part number and looked
-- no flow rates at all given in the spec sheet. There's a reference to
an "Engineering Section", but no links and after almost 30 minutes
poking around trying to find it somehow, gave it up...

So, no real answer.

There is a required minimum operating pressure differential (to overcome
the inertia/drag of the solenoid when open to close it), so I suppose
it's possible there's the requirement to generate that.

That is, of course, conjecture.

Overall, methinks OP is over-engineering a solution to a non-problem,
creating others in its place... :)

I'm interested in his proposed control input(s)/logic.

BTW, it appears a reasonable choice for ASCO of valve family using their
selection engine. Their only NSF-rated potable solenoid valves are
limited to 1/4-3/8" so that's not possible from them even if OP wanted
to pay the (undoubtedly sizable) premium for it.

--

Page 3 of 5       < 1 2 3 > last >>
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