Can someone please explain, why do we need a pressure vessel along with a jockey pump?
Do you have a standard section reference for the requirement??
Or some other reference for the requirement??
Is this a plain water fire sprinkler system?
This is a high pressure water mist system, the jockey pump is already there.
I just need to know for my understanding, as to why the jockey pump comes with a pressure vessel..
Not a water mist person
Appears there are different set ups
To include one that has pressure on the system piping at all times,,
And the jockey pump is there for that only, maintain the pressure??
Are you referring to a surge type pressure vessel? Contractors max out the pressure ratings when they choose a fire pump, normally to the point at which the jockey pump stops at 165 psi and starts at 155 psi. So in a fire pump room that has no air conditioning what happens when the temperature rises and falls 50 degrees in one day? The system pressure can rise above 200 psi. The jockey pump isn't designed to lower the pressure. The pressure vessel acts as a surge tank to alleviate this excess pressure.
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