Yes, hydrants fed from the pump/tank is one unanswered question in this equation.
We need details in order to provide guidance. Craig L. Prahl, CET Fire Protection CH2MHILL Lockwood Greene 1500 International Drive Spartanburg, SC 29304-0491 Direct - 864.599.4102 Fax - 864.599.8439 CH2MHILL Extension 74102 [email protected] -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Todd - Work Sent: Tuesday, September 03, 2013 11:00 AM To: [email protected] Subject: Re: Fire Pump with storage tank Unless otherwise specified, a tank is sized based on the maximum sprinkler demand, plus any hose streams fed from the pump (inside hose stations, standpipes, fire hydrants, etc), times the duration. And that is useable water. If no hose flow is taken off the pump, it does not have to be included in pump sizing. I would not think fire flow would matter unless hydrants are fed by the pump. Todd G Williams, PE Fire Protection Design/Consulting Stonington, CT www.fpdc.com On Sep 3, 2013, at 10:51 AM, Steven Scandaliato <[email protected]> wrote: > Chris, I'm curious, is that in the March 2013 edition of the UFC? > Where is that coming from? > > Steven Scandaliato, SET CFPS > 520.971.2322 Cell > > > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of > Cahill, Christopher > Sent: Tuesday, September 03, 2013 8:47 AM > To: [email protected] > Subject: RE: Fire Pump with storage tank > > The 150% part of the question makes me wonder if this is military. If > so since Feb. 2013 you do size for 150% of the pump (or demand x time > whichever is higher which is always the 150% of the pump, seeing as > how you can't go past 140% of a pump for design, well unless you want > to put in a lot of small pumps.) > > Chris Cahill, PE* > Senior Fire Protection Engineer > Burns & McDonnell > 8201 Norman Center Drive > Bloomington, MN 55437 > Phone: 952.656.3652 > Fax: 952.229.2923 > [email protected] > www.burnsmcd.com > > Proud to be one of FORTUNE's 100 Best Companies to Work For *Registered in: > MN > > > > > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of > [email protected] > Sent: Tuesday, September 03, 2013 9:42 AM > To: [email protected] > Subject: RE: Fire Pump with storage tank > > Don't forget about Fire Flow as referenced in the IFC section 507. > You'll need to call the local responding fire department and ask what > method they have approved for determining fire flow. > > This is a value related to flow (gpm) and duration (hours) for manual > fire fighting. It is very often overlooked by fire protection > designers because it's not in NFPA 13. > > This value can have significant impact on your tank and pump selection. > > Craig L. Prahl, CET > Fire Protection > CH2MHILL > Lockwood Greene > 1500 International Drive > Spartanburg, SC 29304-0491 > Direct - 864.599.4102 > Fax - 864.599.8439 > CH2MHILL Extension 74102 > [email protected] > > > > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of > Jeremy Frazier > Sent: Tuesday, September 03, 2013 10:19 AM > To: [email protected] > Subject: Fire Pump with storage tank > > When you size a tank, do you size it for 150% of the fire pump demand > or just the sprinkler demand? Would you also need to include the hose > stream if there is no inside hose stations? This is the first time > I'm doing one of these, and I would hate to get this wrong. > > > > > > Jeremy Frazier > Designer > > Cavalier Fire Protection > > P:571-931-1004 > > F:571-931-1010 > > > > _______________________________________________ > 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-firesprinkl > er.org _______________________________________________ > 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-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
