I agree, but you would still have to account for the required hose allowance (i.e. 100, 250, 500) prior to the fire pump if there are hydrants present. With tanks and other stored water sources without hydrants you would not have too. If the FD hooks up to those hydrants and takes out 250 then your supply to the pump would be 250 short if not accounted for.
Thanks, Eric Tysinger CET NICET III - 108988 Designer Wayne Automatic Fire Sprinklers, Inc. 4370 Motorsport Drive Concord, NC 28027 p: (704)782-3032 x1751 f: (704)795-6838 C: (239)633-9703 -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of [email protected] Sent: Tuesday, October 05, 2010 4:15 PM To: [email protected] Subject: RE: Hose Demand If there's no place on the system side of the pump to connect a hose, either a system hose valve inside or hydrant outside there is no need to calc the hose demand. It says if the system SUPPLIES SPRINKLERS ONLY you don't need to factor hose stream in when sizing the pump. Size the pump based on Sprinkler flow demand only. Craig L. Prahl, CET Fire Protection Specialist Mechanical Department CH2MHILL Lockwood Greene 1500 International Drive Spartanburg, SC 29304-0491 Direct - 864.599.4102 Fax - 864.599.8439 [email protected] http://www.ch2m.com -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Matthew J. Willis Sent: Tuesday, October 05, 2010 3:52 PM To: [email protected] Subject: RE: Hose Demand 12.8.2 Where pumps taking suction from a private fire service main supply sprinklers only, the pump need not be sized to accommodate inside and outside hose. Such hose allowance shall be considered in evaluating the available water supplies. Unless you are sizing a pump, I do not think so. Matt Matthew J. Willis, CET Automatic Fire Sprinklers Norred Fire Systems L.L.C. 318-387-1134 Voice 318-816-1087 Mobile 318-387-1163 Facsimile [email protected] > >-----Original Message----- > >From: [email protected] > >[mailto:sprinklerforum- [email protected]] On Behalf Of Brian > >Harris > >Sent: Tuesday, October 05, 2010 2:46 PM > >To: [email protected] > >Subject: RE: Hose Demand > > > >Matt- > >On this particular project the calculations will not work with the > >existing pump if hose stream is figured in, without the hose stream > >the system will work. Can 12.8.2 be applied? > > > >Brian Harris > >FDFP Inc. > > > > > >-----Original Message----- > >From: [email protected] > >[mailto:[email protected]] On Behalf Of Matthew J. > >Willis > >Sent: Tuesday, October 05, 2010 3:40 PM > >To: [email protected] > >Subject: RE: Hose Demand > > > >It says the Pump need not be sized to accommodate..., looks like all > >other hose/calculations may apply. > > > >R/ > >Matt > > > > > > > > > > > >Matthew J. Willis, CET > >Automatic Fire Sprinklers > >Norred Fire Systems L.L.C. > >318-387-1134 Voice > >318-816-1087 Mobile > >318-387-1163 Facsimile > >[email protected] > > > >> >-----Original Message----- > >> >From: [email protected] > >> >[mailto:sprinklerforum- [email protected]] On Behalf Of > >> >Brian Harris > >> >Sent: Tuesday, October 05, 2010 2:35 PM > >> >To: [email protected] > >> >Subject: Hose Demand > >> > > >> >If I have a system with a pump that is fed from a private fire > >> >main as described in 3.8.1.11 (2007) am I allowed to exclude the > >> >hose stream > >from > >> >the calculations per 12.8.2? > >> > > >> > > >> > > >> >Brian Harris > >> > > >> >First Defense Fire Protection > >> > > >> >11957 Ramah Church Road > >> > > >> >Huntersville, NC 28078 > >> > > >> >Phone: 704.948.3506 > >> > > >> >Fax: 704.948.3507 > >> > > >> >Nicet # 128476 > >> > > >> > > >> > > >> > > >> > > >> > > >> > > >> >======= > >> >Email scanned by PC Tools - No viruses or spyware found. > >> >(Email Guard: 7.0.0.21, Virus/Spyware Database: 6.16010) > >> >http://www.pctools.com/ ======= > >> >_______________________________________________ > >> >Sprinklerforum mailing list > >> >[email protected] > >> >http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum > >> > > >> >For Technical Assistance, send an email to: > >> >[email protected] > >> > > >> >To Unsubscribe, send an email to:Sprinklerforum- > >[email protected] > >> >(Put the word unsubscribe in the subject field) No virus found in > >> >this incoming message. > >> >Checked by AVG - www.avg.com > >> >Version: 9.0.862 / Virus Database: 271.1.1/3178 - Release Date: > >10/05/10 > >> >01:34:00 > > > >_______________________________________________ > >Sprinklerforum mailing list > >[email protected] > >http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum > > > >For Technical Assistance, send an email to: [email protected] > > > >To Unsubscribe, send an email > >to:[email protected] > >(Put the word unsubscribe in the subject field) > > > > > > > > > > > >======= > >Email scanned by PC Tools - No viruses or spyware found. > >(Email Guard: 7.0.0.21, Virus/Spyware Database: 6.16010) > >http://www.pctools.com/ ======= > > > > > > > > > > > >======= > >Email scanned by PC Tools - No viruses or spyware found. > >(Email Guard: 7.0.0.21, Virus/Spyware Database: 6.16010) > >http://www.pctools.com/ ======= > >_______________________________________________ > >Sprinklerforum mailing list > >[email protected] > >http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum > > > >For Technical Assistance, send an email to: [email protected] > > > >To Unsubscribe, send an email > >to:[email protected] > >(Put the word unsubscribe in the subject field) > > > >No virus found in this incoming message. > >Checked by AVG - www.avg.com > >Version: 9.0.862 / Virus Database: 271.1.1/3178 - Release Date: > >10/05/10 01:34:00 _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [email protected] To Unsubscribe, send an email to:[email protected] (Put the word unsubscribe in the subject field) _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [email protected] To Unsubscribe, send an email to:[email protected] (Put the word unsubscribe in the subject field) _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [email protected] To Unsubscribe, send an email to:[email protected] (Put the word unsubscribe in the subject field)
