Auto shutoff Valve on Loss of Pressure
Auto shutoff Valve on Loss of Pressure
(OP)
I have some property in South America and we loose water at least once a week. Once the water returns, we need to flush the system for at least 10-15 minutes to clear all the dirt/mud out (as they do repairs, it get's filled with earth). We don't drink from this source....
I'd like to not have to flush this in our sinks/showers or toilets (if someone's not paying attention), plus, we'd like to install a reservoir barrel to keep some water available....which takes water on low level automatically.
Is there a valve that will close on loss of pressure and needs to be manually reset? I'd install a diverter just upstream of this valve to flush the system outside of the home after the 'loss of pressure' valve closes. Once flushed, I would manually reset the valve. Incoming line to the property is 20 or 25mm PVC.
I'd like to not have to flush this in our sinks/showers or toilets (if someone's not paying attention), plus, we'd like to install a reservoir barrel to keep some water available....which takes water on low level automatically.
Is there a valve that will close on loss of pressure and needs to be manually reset? I'd install a diverter just upstream of this valve to flush the system outside of the home after the 'loss of pressure' valve closes. Once flushed, I would manually reset the valve. Incoming line to the property is 20 or 25mm PVC.
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RE: Auto shutoff Valve on Loss of Pressure
RE: Auto shutoff Valve on Loss of Pressure
RE: Auto shutoff Valve on Loss of Pressure
1) 3 way ball valve with upstream pressure switch
2) Relief valve set at desired pressure. When low or no pressure, no flow to your house. Still requires separate flush/drain and still a risk that once pressure returns, it'll flush dirt downstream
3) Might be able to do something clever using a piston with water pressure on one side and compressed air on the other to keep a normally closed valve to your house open when there is pressure and closed on low pressure. Once the air has been lost on the de energise stroke it needs to be mechanically filled again. This will prevent forward flow of dirt when pressure returns
RE: Auto shutoff Valve on Loss of Pressure
ditto your standby water source - use some float switches and a set of solenoid valves.
You might find something already packaged together, but I've only seen it for gas supplies so far.
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RE: Auto shutoff Valve on Loss of Pressure
I had thought of the pressure switch and solenoid...but we loose electric quite often too! I suppose make it a fail open valve, or fail close with a manual bypass for when we loose electric. We're up in the mountains in S. America. I was surprised we even had city/municipal water....
Now the hard part is finding parts down there....
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RE: Auto shutoff Valve on Loss of Pressure
Loss of power, either loss of power or loss of pressure latches closed
http://www.asco.com/ASCO%20Asset%20Library/asco-se...
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Also: If you get a response it's polite to respond to it.
RE: Auto shutoff Valve on Loss of Pressure
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