Does the fire pump supply the site hydrants? Site fire flow and fire sprinkler demand are two independent entities.
Travis Mack, SET MFP Design, LLC "Follow" us on Facebook: https://www.facebook.com/pages/MFP-Design-LLC/92218417692 Send large files to MFP Design via: https://www.hightail.com/u/MFPDesign Sent from my iPhone > On Dec 5, 2014, at 7:29 PM, <[email protected]> <[email protected]> > wrote: > > I think I agree with you, but to be very specific, let's assume I'm designing > a new building on a greenfield site which is served by a public water system. > The building is type V construction, 600,000 square feet and fully protected > with ESFR sprinklers. Table B105.2 indicated a fire flow rate of 8000 GPM, > reduced to 4000 GPM for sprinkler credit, at minimum 20psi. My question is, > WHERE is this 4000 GPM at 20 psi measured? At the city water main connection? > Or at the fire pump discharge? > > Mark at Aero > 602 820-7894 > > Sent from my iPhone > >> On Dec 5, 2014, at 7:17 PM, "Cahill, Christopher" <[email protected]> >> wrote: >> >> Neither. It's the flow you need for a building. You might get it from a >> muni or private. Absolutely nothing to do with sprinklers except you get a >> reduction if building is sprinklered. >> >> >> Chris Cahill >> Fire Protection Engineer >> Burns & McDonnell >> 952-656-3652 >> [email protected] >> >> >> -------- Original message -------- >> From: [email protected] >> Date:12/05/2014 8:12 PM (GMT-06:00) >> To: [email protected] >> Subject: A Poll of the Experienced >> >> Over this weekend I'd like to ask the opinion of those forumites experienced >> in the reading and understanding of the "International Fire Code" on the >> topic of "Fire Flow" described in Chapter 5, and further prescribed in >> Appendix B. Is the available flow rate and residual pressure referenced, >> intended to describe these values of the municipal or private water supply >> available to the building site? Or, the minimum output of any fire pump >> associated specifically with the automatic sprinkler system in the building? >> Any takers? Questions? Clarifications? >> Thanks for any answers. >> >> Mark at Aero >> 602 820-7894 >> >> Sent from my iPhone >> >> _______________________________________________ >> 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 > _______________________________________________ > 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
