NFPA 14 Table 8.3.1.3 indicates a 2½" angle valve to be 31 equiv ft of pipe. You can use HW to figure out friction losses from there.
Duane Johnson, PE Program Manager Division of the Fire Marshal (Support Contractor) Office of Research Services National Institutes of Health 301-496-0487 "Protecting Science - One Sprinkler at a Time" -----Original Message----- From: Vince Sabolik [mailto:[email protected]] Sent: Thursday, April 05, 2012 12:02 PM To: [email protected] Subject: RE: k -- WHAT? Forward flow testing for a BFP So I guess what I'm looking for is a performance K factor. At 11:56 AM 4/5/2012, you wrote: >Um, Ron? According to that chart a 2.5" angle >valve will flow 9.9gpm at 100psi. I don't >think that's quite in accordance with HW. > >If you are flowing 250 through the valve at >100psi, it has a K of 25.0, no? But they can >flow more ... K at 350gpm/100psi would be 35 ... What are you trying to do? > >Steve > > > >-----Original Message----- >From: [email protected] >[mailto:[email protected]] On Behalf Of Ron Greenman >Sent: Thursday, April 05, 2012 8:49 AM >To: [email protected] >Subject: Re: k -- WHAT? > >http://www.westerndynamics.com/Download/friclossfittings.pdf > >On Thu, Apr 5, 2012 at 8:46 AM, Seidl Jamie D. <[email protected]> wrote: > > > Are you looking for friction loss through a valve, or are you looking > > to flow a certain amount of water at a certain pressure? > > > > -----Original Message----- > > From: [email protected] [mailto: > > [email protected]] On Behalf Of Vince Sabolik > > Sent: Thursday, April 05, 2012 11:45 AM > > To: [email protected] > > Subject: k -- WHAT? > > > > Good morning -- > > > > Anyone have an approximate K value for a 2½" hose valve? > > > > > > > > > > Vince Sabolik, West Tech Fire Protection, Inc. > > 11351 Pearl Road / Strongsville, Ohio > > 44136 440 238-4800 Fax 440 238-4876 > > ____________________________________________________________________ > > > > > > -------------- next part -------------- An HTML attachment was > > scrubbed... > > URL: < > > http://fireball.firesprinkler.org/mailman/private/sprinklerforum/attac > > hments/20120405/bddfbfe1/attachment.html > > > > > _______________________________________________ > > Sprinklerforum mailing list > > [email protected] > > http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum > > _______________________________________________ > > 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, WFSC > >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/20120405/48e6124f/attachment.html> >_______________________________________________ >Sprinklerforum mailing list >[email protected] >http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum >_______________________________________________ >Sprinklerforum mailing list >[email protected] >http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum Vince Sabolik, West Tech Fire Protection, Inc. 11351 Pearl Road / Strongsville, Ohio 44136 440 238-4800 Fax 440 238-4876 ____________________________________________________________________ -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://fireball.firesprinkler.org/mailman/private/sprinklerforum/attachments/20120405/f8fc3614/attachment.html> _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum
