Galvanized pipe allowed this..not anymore Section 22.4.4.7 in the 2010, changed in 23.4.4.7.1 for the 13 Ed.
-----Original Message----- From: Ben Young [mailto:[email protected]] Sent: Thursday, June 11, 2015 9:37 AM To: [email protected] Subject: Re: C factor for Pre-Action Off the top of my head, I think it was only for non-interlocked systems... maybe single-interlock as well? Benjamin Young On Thu, Jun 11, 2015 at 12:34 PM, Matt Grise <[email protected]> wrote: > I heard that once upon a time, you were allowed to use C=120 for calcs > in a pre-action system (maybe with FM design?). > > Has anyone else heard of this? > > 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 > 913.927.0222 cell > www. AFPsprink.com > > _______________________________________________ > Sprinklerforum mailing list > [email protected] > > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkl > er.org > _______________________________________________ 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
