It does supply the sprinkler systems through the site fireline. It has a full size bypass around the fire pump. In addition the site fireline has a second connection directly to the city water system via a backflow device.
Mark at Aero 602 820-7894 Sent from my iPhone > On Dec 5, 2014, at 9:06 PM, "Travis Mack" <[email protected]> wrote: > > 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 _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
