deluge pipe line modification-

[chanax]

there is a small modification in deluge pipeline (existing) .is it required to do hydraulic calculation again.as per nfpa what are the requirments

 

[LittleInch]

Read the nfpa code docs. They tend to be very prescriptive, but a common sense approach would be that unless the flow has increased by >10%, you don't need to re-do the analysis.

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