Thanks Trevor. I like graphs. I'm a slow learner but i dont let that stop me. On Oct 1, 2016 4:11 PM, "Brad Casterline" <[email protected]> wrote:
> Wow Ron thanks! > That pow thing blows my mind but that's ok. > I might seem overly sensatitve about this but it is one of the two or > three 'light bulb' moments I've had in my sprinkler career. I don't know if > you have heard designers say things like, "suddenly it just clicked", or > not. I have, but I guess I'm the only one who heard gravity click with > sprinkler calcs. Before that Q,K,P was so mysterious, although I could > sleep at night, it was fitfull. > > Thanks again man, > > Brad > On Oct 1, 2016 3:54 PM, "rongreenman ." <[email protected]> wrote: > >> Brad- >> >> 919gpm using the standard formula by hand. The only trick is the square >> root of P which may have to be bracketed if it's not one you know. I can >> use a simple calculator for that though. Took about 45 seconds with a >> calculator with a square root function. A couple of minutes if i need to >> bracket and less than the 45 seconds if its a square root I know (like for >> 30). >> >> And here is the calculator tape for the truly annal: >> >> pow(30,1/2) * 6.25 * 0.9 * 29.83 >> = 919.04421883382455 >> >> 2.5 squared is just one of those I have memorized. >> >> On Sat, Oct 1, 2016 at 1:35 PM, Trevor Spain <[email protected]> >> wrote: >> >>> If you need to be able to print a report or save a report as a pdf, >>> download the free hydrant flow test program from here: >>> >>> http://igneusinc.com/files/files.html >>> >>> Trevor Spain >>> >>> >>> On 10/1/2016 2:03 PM, Mark Phillips wrote: >>> >>>> http://www.firehydrant.org/info/hycalc.html >>>> >>>> Love it and used it for years >>>> >>>> >>>> Sent from my Verizon 4G LTE Droid >>>> On Oct 1, 2016 2:52 PM, Travis Mack <[email protected]> wrote: >>>> Follow the formula in the standards. >>>> >>>> 29.83 x hydrant coefficient x pumper modification x diameter x diameter >>>> x sqrt (pitot pressure) >>>> >>>> Keep it all simple. No need to overcomplicate everything. >>>> >>>> There are even several apps to put in your phone to do this stuff. >>>> Keep it all simple. >>>> >>>> Travis Mack, SET >>>> MFP Design, LLC >>>> "Follow" us on Facebook: https://www.facebook.com/pages >>>> /MFP-Design-LLC/92218417692 >>>> Send large files to MFP Design via: >>>> https://www.hightail.com/u/MFPDesign >>>> >>>> Sent from my iPhone >>>> >>>> On Oct 1, 2016, at 11:35 AM, Brad Casterline <[email protected] >>>> <mailto:[email protected]>> wrote: >>>> >>>> >>>> My pleasure Jeff, thanks for saying. >>>> >>>> On Oct 1, 2016 1:32 PM, "Jeff Normand" <[email protected]<mailto: >>>> [email protected]>> wrote: >>>> Thanks for sharing Brad. >>>> >>>> On Sat, Oct 1, 2016 at 1:28 PM, Brad Casterline <[email protected] >>>> <mailto:[email protected]>> wrote: >>>> >>>> Say it's a 2.5" butt (small, smooth and well rounded my personal >>>> favorite) so C=.9. >>>> >>>> ((2.5/24) ^2) * PI = .034 ft^2. >>>> .034 * .9 = .0307 ft^2. >>>> >>>> Say pitot = 30 PSI. >>>> 30/.433=69.284 ft (h). >>>> v=(2gh)^.5=(2*32.2*69.284)^.5=69.8 ft/sec. >>>> .0307 ft^2 * 69.8 ft/sec = 2.05 ft^3/sec, * 7.48 * 60 = 920 GPM. >>>> >>>> That's not too shabby! >>>> >>>> Brad >>>> >>>> _______________________________________________ >>>> Sprinklerforum mailing list >>>> [email protected]<mailto:Sprinklerforum >>>> @lists.firesprinkler.org> >>>> http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-f >>>> iresprinkler.org >>>> >>>> >>>> >>>> _______________________________________________ >>>> Sprinklerforum mailing list >>>> [email protected]<mailto:Sprinklerforum >>>> @lists.firesprinkler.org> >>>> http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-f >>>> iresprinkler.org >>>> >>>> _______________________________________________ >>>> Sprinklerforum mailing list >>>> [email protected]<mailto:Sprinklerforum >>>> @lists.firesprinkler.org> >>>> http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-f >>>> iresprinkler.org >>>> _______________________________________________ >>>> Sprinklerforum mailing list >>>> [email protected] >>>> http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-f >>>> iresprinkler.org >>>> >>>> >>>> >>> _______________________________________________ >>> Sprinklerforum mailing list >>> [email protected] >>> http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-f >>> iresprinkler.org >>> >> >> >> >> -- >> Ron Greenman >> >> 4110 Olson Dr., NW >> Gig Harbor, WA 98335 >> >> [email protected] >> >> 253.576.9700 >> >> The Universe is monstrously indifferent to the presence of man. -Werner >> Herzog, screenwriter, film director, author, actor and opera >> director (1942-) >> >> _______________________________________________ >> Sprinklerforum mailing list >> [email protected] >> http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum- >> firesprinkler.org >> >>
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