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]> wrote: > > My pleasure Jeff, thanks for saying. > >> On Oct 1, 2016 1:32 PM, "Jeff Normand" <[email protected]> wrote: >> Thanks for sharing Brad. >> >>> On Sat, Oct 1, 2016 at 1:28 PM, Brad Casterline <[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] >>> http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org >>> >> >> >> _______________________________________________ >> Sprinklerforum mailing list >> [email protected] >> http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org >> > _______________________________________________ > Sprinklerforum mailing list > [email protected] > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
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