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Solenoid Valve for Water Main NJ 07-14-2007
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Posted by NJ on July 14, 2007, 10:38 am
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


Posted by Edwin Pawlowski on July 14, 2007, 11:22 am

> 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
>

The valve body is brass so I see no reason it would not be rated for potable
water.



Posted by Rick Blaine on July 14, 2007, 12:07 pm

>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?


Interesting idea... You'll have to hook it up through a relay of sorts as your
alarm system won't be able to supply the current required directly. That's a
Normally Closed valve, so loss of power will also cut off your water supply.
That's probably a good thing as well. Please post a followup as to how it works
out for you.

--
"Tell me what I should do, Annie."
"Stay. Here. Forever." - Life On Mars

Posted by dpb on July 14, 2007, 12:41 pm
Rick Blaine wrote:
>
>> 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).

What's the input to know there's a pipe broken?

....

> Interesting idea... You'll have to hook it up through a relay of sorts as your
> alarm system won't be able to supply the current required directly. That's a
> Normally Closed valve, so loss of power will also cut off your water supply.
> That's probably a good thing as well. ...

Not if he has a fire suppression system.

Would also be kinda' inconvenient in case of loss of power (winter ice
storm, say), although if has permanent backup power I guess it's doable.

It's not clearcut to me from information provided which would be better
choice...

If the worry is for vacation, etc., I'd be far more inclined to simply
put a quarter-turn isolation valve in a convenient place and be done w/
it. Particularly as it isn't at all clear how he would determine when a
break requiring isolation has occurred.

--

Posted by Edwin Pawlowski on July 14, 2007, 4:07 pm

>
> I'd be far more inclined to simply put a quarter-turn isolation valve in
> a convenient place and be done w/ it.

A plumber would call that a "ball valve"



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