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11-12-2009, 08:06 PM #6
Re: Hermetic Pump Diferential Presostat
Please se page 5 of following documents
http://www.hantech.com/documents/PDF/HP237.pdf
As you can see the HP conection is before the check valve. So when you have a buble of gas inside the pump or a loss of pressure , the static head of the pump plays a minor role
I don't find a good criterio to ajust the differential pressure
I appresiate your comments
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