Highest flow test I have physically measured from a public system was 212psi static with 195psi residual at about 1,725gpm more or less, if I recall correctly. This from a 2 1/2" port; all of these are theoreticals ...
Steve L. -----Original Message----- From: sprinklerforum-boun...@firesprinkler.org [mailto:sprinklerforum-boun...@firesprinkler.org] On Behalf Of Ed Vining Sent: Monday, April 09, 2012 11:23 AM To: sprinklerforum@firesprinkler.org Subject: Re: k -- WHAT? My beat up old 14th Edition of the Fire Protection Handbook shows a Figure 11.6J (Taken from Chemical Engineers' Handbook). The curve goes off the chart with 1400 gpm at about 63 psi from a 2 1/2" hydrant butt. Table 11-6B shows a theoretical discharge of 1490 gpm (interpolated) at 63 psi, and1884 gpm from 2 1/2" smooth bore nozzles. All are far cry from a 2 1/2" hose valve, but neither looks like anywhere close to a k factor of 25. Ed Vining 4819 John Muir Rd Martinez CA 94553 925-228-8792 Cell 925-787-0465 On Mon, Apr 9, 2012 at 8:39 AM, dradha <dra...@gmail.com> wrote: > Hello Vince > the K value for 2.5inch hose valve is 25 for a flow(as per NFPA) of > 250gpm at 100psi. > > Regards > DR > > > On Thu, Apr 5, 2012 at 9:14 PM, Vince Sabolik <vi...@wtfp.net> wrote: > > > 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/**attachments/20120405/bddfbfe1/**attachment. > > html< > http://fireball.firesprinkler.org/mailman/private/sprinklerforum/attac > hments/20120405/bddfbfe1/attachment.html > > > > > > > ______________________________**_________________ > > Sprinklerforum mailing list > > Sprinklerforum@firesprinkler.**org > > <Sprinklerforum@firesprinkler.org> > > http://fireball.firesprinkler.**org/mailman/listinfo/**sprinklerforu > > m< > http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum> > > > > > > -- > D Radhakrishnan > -------------- next part -------------- An HTML attachment was > scrubbed... > URL: < > http://fireball.firesprinkler.org/mailman/private/sprinklerforum/attac > hments/20120409/e6033bee/attachment.html > > > _______________________________________________ > Sprinklerforum mailing list > Sprinklerforum@firesprinkler.org > http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://fireball.firesprinkler.org/mailman/private/sprinklerforum/attachments/20120409/d3d8ce76/attachment.html> _______________________________________________ Sprinklerforum mailing list Sprinklerforum@firesprinkler.org http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum _______________________________________________ Sprinklerforum mailing list Sprinklerforum@firesprinkler.org http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum
