Yes, after rereading the question, the answers did get away a bit. I believe his suggestion would be acceptable as long as it was balanced at the point of connection.
Bobby Gillett Sr. Project Manager Key Fire Protection, Inc. (731) 424-0130 office (731) 424-9285 fax (731) 267-4853 cell www.keyfireprotection.com -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Ron Greenman Sent: Wednesday, February 01, 2012 11:50 AM To: [email protected] Subject: Re: What's wrong with this? here's Vince's original question: Existing center fed tree systems.... risers are all together in one place.... need rack sprinklers. Why can't the adjacent roof system (and its control valve) be used to supply in rack sprinklers? Note "systemS," suggesting more than one. "RiserS," also suggesting more than one. Since (I think..."adjacent roof system") the racks are in the same area of coverage of the overhead and there was no mention of number of racks, square footage of racks, height of racks, commodity, etc., why all the reading in of more than is there? Why the need for a separate riser for the racks (that was the question) if they can be covered within the rules from the overhead systems. Calc the rack demand, add it to the system at the point of deviation, calc the total back to the street. It works or it doesn't. If it does it doesn't need a separate riser or a separate control valve at the diversion point (except for convenience). But Vince didn't ask about good practice, he asked about rules. Am I missing something? Have I overlooked a change to the code? On Wed, Feb 1, 2012 at 8:09 AM, Bobby Gillett < [email protected]> wrote: > But with the separate control valves at the base of riser (as indicated in > 8.16.1.6) you could protect 40,000ft² per In Rack System, correct? > > Bobby Gillett > Sr. Project Manager > Key Fire Protection, Inc. > (731) 424-0130 office (731) 424-9285 fax > (731) 267-4853 cell > www.keyfireprotection.com > > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of Roland > Huggins > Sent: Wednesday, February 01, 2012 9:59 AM > To: [email protected] > Subject: Re: What's wrong with this? > > There's also a nice drawing portraying it in the Handbook. > > An additionally problem is that you would be likely exceeding your > system maximum since you have now combined your two systems. Despite > the fact that we use to do that for hose connections but that was > explicitly allowed and had a different function. > > Roland > > On Feb 1, 2012, at 3:55 AM, Bobby Gillett wrote: > > > NFPA 13 2010 - 8.16.1.6 , 8.16.1.6.1, 8.16.1.6.2, 8.16.1.6.3 > > > > Bobby Gillett > > Sr. Project Manager > > _______________________________________________ > Sprinklerforum mailing list > [email protected] > http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum > > ----- > No virus found in this message. > Checked by AVG - www.avg.com > Version: 2012.0.1913 / Virus Database: 2109/4779 - Release Date: 02/01/12 > > _______________________________________________ > Sprinklerforum mailing list > [email protected] > http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum > -- 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 They are happy men whose natures sort with their vocations. -Francis Bacon, essayist, philosopher, and statesman (1561-1626) -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://fireball.firesprinkler.org/mailman/private/sprinklerforum/attachment s/20120201/15cbd164/attachment.html> _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum ----- No virus found in this message. Checked by AVG - www.avg.com Version: 2012.0.1913 / Virus Database: 2109/4779 - Release Date: 02/01/12 _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum
