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
