Way overkill...so with a K of 14 and a density of only .2 ....are you sure you are not overflowing the sprinklers? Theres something where missing..just doesn't sound right.
Steven Scandaliato, SET CFPS 520.971.2322 Cell -----Original Message----- From: sprinklerforum-boun...@lists.firesprinkler.org [mailto:sprinklerforum-boun...@lists.firesprinkler.org] On Behalf Of Greg McGahan Sent: Monday, September 23, 2013 5:57 AM To: sprinklerforum@lists.firesprinkler.org Subject: Re: old 14.5k ecoh brass upright There are 8 heads in the room spaced at 20 x 20 - reducing the hose stream does not get us where we need to be. The 80 gpm per head is killing the deal and I cannot make it work without extensive revamping...A little overkill just for 3 painted heads I think. However, legally I don't see a leg to stand on unless we can find the exact same heads to replace them with. I can't even replace the uprights in an adjacent room with the 14.0's and move the 14.5's ( I know that isn't even legal anymore) to work either. STUCK On Sun, Sep 22, 2013 at 8:48 PM, Steven Scandaliato <scandali...@outlook.com > wrote: > How big is the storage room? Is it just 3 heads or how many total. > Doing a set of supply calcs and showing how much density is going to > be provided if just those 3 sprinklers go off would be a strong > argument...how big is the room? > > Steven Scandaliato, SET CFPS > 520.971.2322 Cell > > -----Original Message----- > From: sprinklerforum-boun...@lists.firesprinkler.org > [mailto:sprinklerforum-boun...@lists.firesprinkler.org] On Behalf Of > Scott A Futrell > Sent: Sunday, September 22, 2013 6:39 PM > To: sprinklerforum@lists.firesprinkler.org > Subject: RE: old 14.5k ecoh brass upright > > Sometimes...just sometimes, the AHJ might accept reduced hose streams > if you can get the calcs to work otherwise. It might be worth the try. > 1) they shouldn't need hose except for mop up and 2) it shouldn't take > all the sprinklers operating in the design area to control it, so if > everything works as programmed a few sprinklers will control it and > the FF's will have enough water to mop up. > > Scott Futrell > > (763) 425-1001 x12 Office > (612) 759-5556 Cell > > > -----Original Message----- > From: sprinklerforum-boun...@lists.firesprinkler.org > [mailto:sprinklerforum-boun...@lists.firesprinkler.org] On Behalf Of > Greg McGahan > Sent: Sunday, September 22, 2013 6:53 PM > To: sprinklerforum@lists.firesprinkler.org > Subject: Re: old 14.5k ecoh brass upright > > We can't make the curve period..if we change the K factor > > On Sep 22, 2013, at 6:47 PM, "rongreenman ." <rongreen...@gmail.com> > wrote: > > > Did the AHJ require that ever popular 10% cushion in the original > > calcs. Do you make the curve without the 10% cushion if required? > > > > > > On Sun, Sep 22, 2013 at 4:37 PM, Greg McGahan > > <g...@livingwaterfp.com> > wrote: > > > >> We need to replace 3 painted heads in an existing storage room that > >> currently has 14.5 k heads. Going to the closest Equivalent head > >> changes the K factor to 14.0 and it makes enough of a difference > >> that the calks no longer work.. > >> > >> Even if we replace all of the heads in that area with 14.0's it > >> will not work. Does anyone happen to have these laying around? > >> > >> Question - if we can't find them, what should we do? The calcs do > >> not work due to a combination of a slightly degraded water supply > >> and being incorrectly calculated by the original installing > >> contractor - we have the original drawings and they used a .15 > >> density throughout the building instead of the required .20. (yes- > >> even when originally installed). The difference is only a few > >> pounds, but it goes from slightly positive to negative. The AHJ has > >> closed his ears and eyes and said "get the painted heads replaced". > >> > >> Thanks for your help. > >> Greg > >> _______________________________________________ > >> Sprinklerforum mailing list > >> Sprinklerforum@lists.firesprinkler.org > >> > >> http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firespri > >> nk > >> ler.org > >> > > > > > > > > -- > > Ron Greenman > > Instructor > > Fire Protection Engineering Technology Bates Technical College > > 1101 So. Yakima Ave. > > Tacoma, WA 98405 > > > > rgreen...@bates.ctc.edu > > > > http://www.bates.ctc.edu/fireprotection/ > > > > 253.680.7346 > > 253.576.9700 (cell) > > > > Member: > > ASEE, SFPE, ASCET, NFPA, AFSA, NFSA, AFAA, NIBS, WSAFM, WFC, WFSC > > > > They are happy men whose natures sort with their vocations. -Francis > > Bacon, essayist, philosopher, and statesman (1561-1626) > > _______________________________________________ > > Sprinklerforum mailing list > > Sprinklerforum@lists.firesprinkler.org > > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprin > > kl > > er.org > > _______________________________________________ > Sprinklerforum mailing list > Sprinklerforum@lists.firesprinkler.org > > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkl > er.org _______________________________________________ > Sprinklerforum mailing list > Sprinklerforum@lists.firesprinkler.org > > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkl > er.org > > _______________________________________________ > Sprinklerforum mailing list > Sprinklerforum@lists.firesprinkler.org > > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkl > er.org > -- Greg McGahan Living Water Fire Protection, LLC <http://www.livingwaterfp.com> 1160 McKenzie Road Cantonment, FL 32533 850-937-1850 fax 850-937-1852 _______________________________________________ Sprinklerforum mailing list Sprinklerforum@lists.firesprinkler.org http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org _______________________________________________ Sprinklerforum mailing list Sprinklerforum@lists.firesprinkler.org http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
