I believe that meets the scope and intent of chapter 5 of the IFC. I just want the experts to tell me if I'm right or wrong. I wasn't trying to be evasive, I didn't want to bias the poll. I'd like to get Roland, Steve, John, Ron and anyone else who represents an unbiased expert opinion to chime in and take a position. If possible, directly to my email, and on official letterhead would be greatly appreciated. Thanks all for your effort and patience.
Mark at Aero 602 820-7894 Sent from my iPhone > On Dec 5, 2014, at 9:49 PM, "Travis Mack" <[email protected]> wrote: > > I must not be asking the question right because you aren't answering. But, > what I think you said here is that you have a site fire loop that feeds > hydrants and sprinklers. The site fire loop has two connections to a city > water system and the pump has a full size bypass. > > The civil guys should be calculating this stuff, but if the city system can > supply the 4000 gpm at 20 psi then the fire pump should only need to be sized > for the sprinklers. That is at least how I see it. > > 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 9:33 PM, <[email protected]> <[email protected]> >> wrote: >> >> 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 > _______________________________________________ > 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
