Ed, Two plow points for extra hazard (four for extra) because the rules were changed ror 10/2010 edition.
On Tue, Oct 4, 2011 at 5:16 PM, Ed Vining <[email protected]> wrote: > Please help. I am confused about this thread. > > Why are two orifices required? > > Why is it being said that the flow from an 11.2k would be different from > the > flows from two 5.6k's. My old fashioned math says they would be the same. > > > Ed Vining > 4819 John Muir Rd > Martinez CA 94553 > 925-228-8792 > Cell 787-0465 > > > On Tue, Oct 4, 2011 at 2:48 PM, Cory Power <[email protected]> wrote: > > > The reason I'm asking is because it is an ordinary hazard system and in > > the plans they spec the inspectors test routing to a hub drain in a > janitors > > closet. It would be much easier to have one 11.2k orifice above the hub > > drain than two 5.6 k's. > > > > > > -- > > Cory Power > > P& P Sprinklers Ltd > > 6 Main Rd > > Chapel Arm, NL A0B 1L0 > > Ph: (709) 592-2029 > > Fax: (709) 592-2019 > > > > > > On 10/4/2011 6:07 PM, Justin Reid wrote: > > > >> The Q=k*sqrt(p) math says that it should be equal flow with equal > >> pressure. > >> I guess you would have slightly less pressure with the 11.2 since there > is > >> more flow(friction). > >> > >> I just had an issue yesterday trying to get a flow valve to trip with a > >> remote test (one head) and thought the same thing (to look at using two > >> heads). > >> > >> Good luck, > >> > >> Justin Reid > >> > >> > >> > >> > >> On Tue, Oct 4, 2011 at 1:13 PM, Cory Power<[email protected]> > wrote: > >> > >> Just wondering if anyone have used an 11.2 K Orifice to substitute for > >>> two > >>> 5.6 k heads on an OH1 Dry Inspectors test? Shouldn't it be equivalent? > >>> > >>> -- > >>> Cory Power > >>> P& P Sprinklers Ltd > >>> 6 Main Rd > >>> Chapel Arm, NL A0B 1L0 > >>> Ph: (709) 592-2029 > >>> Fax: (709) 592-2019 > >>> > >>> -------------- next part -------------- > >>> An HTML attachment was scrubbed... > >>> URL:<http://fireball.**firespr**inkler.org/mailman/**< > http://firesprinkler.org/mailman/**> > >>> private/sprinklerforum/****attachments/20111004/c48f4ae4/** > >>> **attachment.html<http://** > fireball.firesprinkler.org/**mailman/private/ > >>> **sprinklerforum/attachments/**20111004/c48f4ae4/attachment.**html< > http://fireball.firesprinkler.org/mailman/private/sprinklerforum/attachments/20111004/c48f4ae4/attachment.html > > > >>> > > >>> ______________________________****_________________ > >>> Sprinklerforum mailing list > >>> Sprinklerforum@firesprinkler.****org <Sprinklerforum@firesprinkler.** > >>> org <[email protected]>> > >>> http://fireball.firesprinkler.****org/mailman/listinfo/**** > >>> sprinklerforum<http://** > fireball.firesprinkler.org/**mailman/listinfo/** > >>> sprinklerforum< > http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum> > >>> > > >>> > >>> -------------- next part -------------- > >> An HTML attachment was scrubbed... > >> URL:<http://fireball.**firesprinkler.org/mailman/** > >> > private/sprinklerforum/**attachments/20111004/53f36606/**attachment.html< > http://fireball.firesprinkler.org/mailman/private/sprinklerforum/attachments/20111004/53f36606/attachment.html > > > >> > > >> ______________________________**_________________ > >> Sprinklerforum mailing list > >> Sprinklerforum@firesprinkler.**org <[email protected]> > >> http://fireball.firesprinkler.**org/mailman/listinfo/**sprinklerforum< > http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum> > >> > > -------------- next part -------------- > > An HTML attachment was scrubbed... > > URL: <http://fireball.**firesprinkler.org/mailman/** > > private/sprinklerforum/**attachments/20111004/655dd34b/**attachment.html< > http://fireball.firesprinkler.org/mailman/private/sprinklerforum/attachments/20111004/655dd34b/attachment.html > > > > > > > > > ______________________________**_________________ > > Sprinklerforum mailing list > > Sprinklerforum@firesprinkler.**org <[email protected]> > > http://fireball.firesprinkler.**org/mailman/listinfo/**sprinklerforum< > http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum> > > > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: < > http://fireball.firesprinkler.org/mailman/private/sprinklerforum/attachments/20111004/f0f671e9/attachment.html > > > _______________________________________________ > 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/attachments/20111004/688b0b17/attachment.html> _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum
