Whole house 24v shutoff valve


  #1  
Old 10-15-15, 08:29 AM
U
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Whole house 24v shutoff valve

Can you recommend a whole house shutoff valve?
Details:
24 volt, 3/4 mpt (prefered but sweat is fine), max pressure 45 to 50 PSI tops, normally closed.
Thanks in advance.

More details:
This valve will actuate often. My well feeds a cistern/booster pump and this valve will be used to keep the cistern from overflowing.
 
  #2  
Old 10-16-15, 10:07 AM
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I don't have a specific manufacturer/model to recommend, but most (all?) electric valves are designed to operate for a decent period of time. Sprinkler valves are the first that come to mind, though residential ones are often built cheaply (low-price wins). There are much higher quality 'commercial' sprinkler valves which will be more reliable, and more expensive.

Be sure you deal with the eventuality of the valve failing, either open or closed. Whether it's due to some gunk interfering with the seal, or the solenoid failing, it will happen at some point. If it just means some overflowing and wasted water, it's not a huge deal. If it's going to cause flooding, or extended overflowing that you wouldn't notice, you'll want some kind of backup (two valves in series), or flood alarm to let you know of the issue.
 
  #3  
Old 10-17-15, 10:18 AM
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These may be dumb questions, but is your pump feeding something besides the cistern? If not, will the pump be damaged by running with no "outlet"?

A second sensor, higher in the cistern, could activate an audible and/or visual to annunciate an over-fill (for any reason).
 
 

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