Tony, Just use one valve. How big are thee booths? We have booths out hee big enough for jetliners with their own systems and we don't worry about separating the mixing rooms from plenums from spray areas. Car paint booth equals about 6 or eight heads in the booth, one or two n the mixing room, one two in the plenum, a couple in the underfloor duct and one in the stack. Not worth the cost of separate valves and the tampers and the wiring and the....
On Thu, Nov 11, 2010 at 3:47 PM, Coastal <[email protected]> wrote: > Hello A.P.Silva, > > I have seen several booths like that around here. They all have a dry > chemical system in the Booth, Pit, Pit Duct and Mix rooms. Sprinklers in the > structure above the booth. > > Thursday, November 11, 2010, 6:15:57 PM, you wrote: > >> Okay, if the literal meaning of the code was taken for my earlier question >> regarding the requirement of valves, a valve would be required for each >> spray booth and mixing booth. Most replied to this question using common >> sense, and said one valve should be enough, and I agree. Can't the same >> approach be used here? I need to find out the exact depth of the plenum. For >> now I'm assuming it is about 2 feet deep. Say it is 2 feet deep. It is a >> concrete pit on top of which the spray booth with open grate floor will sit. >> Won't you say the pit will quickly fill with water that is falling above the >> grated floor? Also I'm thinking, installing piping below the floor is not >> going to be very easy. This type of spray booth can't be common, but there >> must be others that have come across one. Actually I have, several years >> ago, but can't remember what was done. If there is anyone that have come >> across this situation, I'd like to know what they did. > >> Thanks, > >> Tony > >> -----Original Message----- >> From: [email protected] >> [mailto:[email protected]] On Behalf Of Ron Greenman >> Sent: November 11, 2010 12:22 PM >> To: [email protected] >> Subject: Re: Paint spray booth > >> And I concur with all. Yes to sprinklered and no to CC heads but not because >> it is non-combustible, but because it is part of the duct/plenum assembly. > >> On Thu, Nov 11, 2010 at 11:17 AM, <[email protected]> wrote: >>> The spray area needs to be sprinklered. The spray area is the booth >>> and the entire run of duct work (plenum). > >>> John Hoffman P.E. | Fire Protection Engineer | Facility Engineering >>> Services, KCP, LLC - Burns & McDonnell Engineering | National Nuclear >>> Security Administration's Kansas City Plant | Operated by Honeywell >>> FM&T | 2000 E. 95th St | Kansas City, MO 64131 | ph 816-997-7213 | >>> [email protected] > > > >>> From: "A.P.Silva" <[email protected]> > >>> To: <[email protected]> > >>> Date: 11/11/2010 12:28 PM > >>> Subject: RE: Paint spray booth > >>> Sent by: [email protected] > > > > > > >>> Thanks, my thoughts are the same, but wanted to see how the rest >>> interpreted the code, as it is a bit ambiguous. > >>> Another question on spray booths. This is a downdraft booth. The booth >>> floor will be a open mesh steel grill, with a concrete air plenum >>> below it. The air from the booth will exhaust into the air plenum >>> below floor level and up thru' an exhaust duct. My question is will >>> the air plenum below the floor level, have to be sprinklered, based on >>> a open grate flooring, over 4 feet wide? Or not sprinklered, based on >>> over 70% open, open-grid ceiling? > >>> If required to be sprinklered, and the space is less than 3 feet high, >>> will combustible concealed space sprinklers be required. The space is >>> non-combustible and the quick response CC heads are not listed for >>> extra hazard applications. Will that suffice to argue for using >>> standard sprinklers, although the spray pattern may not be optimal? > >>> Tony > >>> -----Original Message----- >>> From: [email protected] >>> [mailto:[email protected]] On Behalf Of Ron >>> Greenman >>> Sent: November 10, 2010 4:11 PM >>> To: [email protected] >>> Subject: Re: Paint spray booth > >>> One for all. The purpose is the same as a for a cooking line with >>> water. To shut down the sub-system for head changing (scheduled >>> maintenance or emergency maintenance) without needing to shut down and >>> drain the entire system. You could possibly get push back from an AHJ >>> wanting one per hood but I'd argue my point and then if that failed >>> argue to avoid a separate one for mixing room. > >>> On Wed, Nov 10, 2010 at 2:54 PM, A.P.Silva <[email protected]> wrote: >>>> NFPA 13, 2007 section 21.4.1.5 : The sprinkler system for each spray >>>> area and mixing room shall be controlled by a separate, listed >>>> indicating valve(s), operable from the floor. > >>>> I have two spray booths and a mixing booth side by side. Can one >>>> valve supply the three booths or are three valves required, one per >> booth? > >>>> Tony > >>>> _______________________________________________ >>>> 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) > > > > >>> -- >>> 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: >>> AFSA, SFPE, ASCET, NFPA, NFSA, AFAA, ASEE, NIBS, WSAFM, WFC > >>> They are happy men whose natures sort with their vocations. -Francis >>> Bacon, essayist, philosopher, and statesman (1561-1626) >>> _______________________________________________ >>> 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) > > > > >> -- >> 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: >> AFSA, SFPE, ASCET, NFPA, NFSA, AFAA, ASEE, NIBS, WSAFM, WFC > >> They are happy men whose natures sort with their vocations. -Francis Bacon, >> essayist, philosopher, and statesman (1561-1626) >> _______________________________________________ >> 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) > > > > -- > Best regards, > Charles Thurston > Coastal Fire Protection > Coastal mailto:[email protected] > > _______________________________________________ > 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) > -- 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: AFSA, SFPE, ASCET, NFPA, NFSA, AFAA, ASEE, NIBS, WSAFM, WFC They are happy men whose natures sort with their vocations. -Francis Bacon, essayist, philosopher, and statesman (1561-1626) _______________________________________________ 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)
