Per a conversation with SS, we cna use the table in 6..2.3.1 whcih lumps the K-factors together. I can hang my hat on the fact that a Nominal 14.0 k factor encompasses the 14.5 currently installed. So we are changing the three heads and moving on.
Thanks, Greg On Mon, Sep 23, 2013 at 7:45 AM, Brad Casterline <[email protected]>wrote: > Can you use paint remover on the heads? > > -----Original Message----- > From: Greg McGahan [mailto:[email protected]] > Sent: Monday, September 23, 2013 6:57 AM > To: [email protected] > 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 < > [email protected] > > 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: [email protected] > > [mailto:[email protected]] On Behalf Of > > Scott A > > Futrell > > Sent: Sunday, September 22, 2013 6:39 PM > > To: [email protected] > > 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: [email protected] > > [mailto:[email protected]] On Behalf Of > Greg > > McGahan > > Sent: Sunday, September 22, 2013 6:53 PM > > To: [email protected] > > 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 ." <[email protected]> > > 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 <[email protected]> > > 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 > > >> [email protected] > > >> > > >> http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprink > > >> ler.org > > >> > > > > > > > > > > > > -- > > > Ron Greenman > > > Instructor > > > Fire Protection Engineering Technology Bates Technical College > > > 1101 So. Yakima Ave. > > > Tacoma, WA 98405 > > > > > > [email protected] > > > > > > 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 > > > [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 > > > > _______________________________________________ > > Sprinklerforum mailing list > > [email protected] > > > > > > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.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 > [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 > -- 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 [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
