Pete & Ed, Thank you this answers the questions I had, and we're good to go with the correct supply size. As Steve said, the distance is actually pretty short from the FDC to the first standpipe, so it was only about 10 PSI we were talking about.
Here are everyone else's answers as well Art: Its a separated occupancy with the lower four floors being a mix of parking, retail, and residential. Upper four stories are residential. its a diesel pump with city suction. 4 standpipes. Tom: Yes, two FDCs near hydrants. AHJ requires Storz connections, so my Siamese question was not applicable. Single 5" Storz at each FDC location is what the AHJ wanted. Thank you everyone for your input and help on this. Benjamin Young On Fri, Nov 17, 2017 at 4:18 PM, Ed Kramer <[email protected]> wrote: > Ben, > > > > Sections 7.7.2, 7.12.3, and 7.12.3.1 should have the answers to your > questions, but may not be the answers you’re looking for. > > > > Ed > > > > > > *Ed Kramer* > > Bamford Fire Sprinkler Co., Inc. > > 5134 Merriam Dr./Shawnee Mission, KS 66203 > > Phone: 913-432-6688 <(913)%20432-6688> Fax: 913-432-5294 > <(913)%20432-5294> Cell: 785-766-4894 <(785)%20766-4894> > > [email protected] > > > > > > > > *From:* Sprinklerforum [mailto:[email protected]. > org] *On Behalf Of *Ben Young > *Sent:* Friday, November 17, 2017 10:05 AM > *To:* [email protected] > *Subject:* FDC sizing on wet automatic standpipes > > > > I'm not lucky enough to be able to treat the FDC on a wet automatic > standpipe as supplemental am I? > > We have a building with a combined sprinkler and standpipe system that's > wet automatic. Building is 8 stories, but separated. etc. etc. > > Since the standpipe is wet automatic, the FDC isn't the only supply > source, so do we still have to calculate it hydraulically? Total standpipe > demand is 1000 GPM > > We're using NFPA 14, 2013 edition. > > Basically, I'm trying to figure out if its OK to run 4" to the FDC and use > a single Siamese instead of 6" piping to a 4-way or two Siamese connections. > > > Benjamin Young > > _______________________________________________ > Sprinklerforum mailing list > [email protected] > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler. > org > >
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