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Standpipe  hydraulic calculation

Question asked by schoi on Jun 29, 2020
Latest reply on Jul 8, 2020 by schoi

When you have a Class I standpipe system with four additional required standpipe riser in each exit stair way, you will have 500 GPM for the first two hydraulically remote outlet of standpipe plus 250 GPM each for the remaining two standpipe.  You will have 1000 GPM per section 7.10.1.1.1  and section 7.10.1.1.3 of 2013 NFPA 14.  Per section 7.8.1 of 2013 NFPA 14 , you need to meet 100 psi requirement.  In hydraulic calculation per section 7.10.1.2 of 2013 NFPA 14, you need to show 1000 GPM at 100 PSI for the standpipe.  Is this correct? Thanks

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