And 2 FDC’s within 150’ of hydrants for a high-rise? Not to digress but I’m finding piping from FDC’s to feed mains not according to code more and more. You’re not supposed to have any valves between the FDC and the Standpipes with only Standpipe Isolation Valves being allowed.
From: Sprinklerforum [mailto:[email protected]] On Behalf Of Art Tiroly Sent: Friday, November 17, 2017 2:52 PM To: [email protected] Subject: RE: FDC sizing on wet automatic standpipes Is this a residential or light hazard 8 story building? Do you have a 1000 gpm fire pump from city water? Electric or diesel? Reliable power with no outages? 3 - 4 or more standpipe risers? Then you can get answers. Art Tiroly ATCO Fire Protection/Tiroly 24400 Highland Rd CLE 44143 216-621-8899 216-570-7030 cell From: Sprinklerforum [mailto:[email protected]] On Behalf Of Ben Young Sent: Friday, November 17, 2017 11:05 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 <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient&utm_term=icon> Virus-free. <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient&utm_term=link> www.avast.com
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