Basement sprinklers, old buildings. Having your only escape route out of the basement be back up the stairs is not always comfortable. Can you imagine doing it in a pre-scba era?
I'd much rather pump it up from the outside. Best Bruce > On Nov 6, 2015, at 11:31 AM, rongreenman . <[email protected]> wrote: > > There are a couple of old buildings in Seattle that I know of with basement > only systems and no automatic water supplies (although equipped with > regular sprinklers) that must be pumped. I wonder if that was a common > practice back in the later part of the nineteenth and early twentieth > centuries. If so I can see a requirement for a FDC. Today I wonder how > often FDs pump sprinkler systems when they could be using those resources > (hydrants and pumpers) for their hoses.And if never (or even seldom) that > then leads to the question of why do we still have FDCs for sprinkler > systems. There are probably many very good reasons I'm not considering, I > don't and never have humped hoses, but I don't see any. And if there is no > reason for an FDC (particularly on a building that could qualify as 13R) > then why else would we need to have pipe that withstands 175 psi working > pressure (discounting combination systems that don't regulate the sprinkler > tie in to 130 psi or less). Then I would think PEX without the FDC would > work in 13R. Rhetorical questions of course as the FDC is required. > >> On Fri, Nov 6, 2015 at 10:49 AM, Pete Schwab <[email protected]> wrote: >> >> I am not aware of any Pex piping available for NFPA 13R. The Pex product >> cannot meet the 175 PSI requirement at higher temperatures. NFPA 13D allows >> 130 PSI at 120° which allows Pex. >> The only other plastic product listed (FM Approved) for fire protection >> that I am aware of is Aquatherm red pipe. >> >> http://www.aquatherm.com/aquatherm-red-pipe-polypropylene-sprinkler-piping >> >> >> Peter Schwab >> VP of Purchasing and Engineering technologies >> >> Wayne Automatic Fire Sprinklers Inc. >> 222 Capitol Court >> Ocoee, Fl 34761 >> >> Mobile: (407) 468-8248 >> Direct: (407) 877-5570 >> Fax: (407) 656-8026 >> >> www.waynefire.com >> >> >> >> >> >> >> >> -----Original Message----- >> From: Sprinklerforum [mailto: >> [email protected]] On Behalf Of Matt Grise >> Sent: Friday, November 06, 2015 10:30 AM >> To: [email protected] >> Subject: pex for 13R >> >> Has anyone developed pex piping for 13R applications? Is anyone pursuing >> that? >> >> Thanks! >> >> Matt Grisé PE*, LEED AP, NICET II >> Sales Engineer >> Alliance Fire Protection >> 130 w 9th Ave. >> North Kansas City, MO 64116 >> >> *Licensed in KS & MO >> >> 913.888.0647 ph >> 913.888.0618 f >> 913.526.7443 cell >> www. AFPsprink.com >> >> >> _______________________________________________ >> Sprinklerforum mailing list >> [email protected] >> >> http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org >> >> _______________________________________________ >> Sprinklerforum mailing list >> [email protected] >> >> http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org > > > > -- > Ron Greenman > Instructor > Fire Protection Engineering Technology > Bates Technical College > 1101 So. Yakima Ave. > Tacoma, WA 98405 > > [email protected] > > http://www.bates.ctc.edu/fireprotection/ > > 253.680.7346 > 253.576.9700 (cell) > > Member: > ASEE, SFPE, ASCET, NFPA, AFSA, NFSA, AFAA, NIBS, WSAFM, WFC, WFSC > > They are happy men whose natures sort with their vocations. -Francis Bacon, > essayist, philosopher, and statesman (1561-1626) > > A problem well stated is a problem half solved. -Charles F. Kettering, > inventor and engineer (1876-1958) > _______________________________________________ > Sprinklerforum mailing list > [email protected] > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
