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Fire Hydrants

Question asked by on May 25, 2019
Latest reply on Jun 6, 2019 by kristofer.klefbohm

Hi, Till now I have confusion regarding the function of the private fire hydrant which is with two hoses (2 1/2") and 4" pumper outlet, as:

01- it is mentioned in NFPA 24 that is used for delivering water to the fire department truck so the residual pressure will be 20 PSI, but I find a lot of design engineers making the minimum residual pressure for it 100 PSI. 


so I have two questions 

01- what is the function of the fire hydrant.

02- how to calculate the required flow and pressure for it.