Thanks Forum For Your Invaluable insights I have always used the same method (average) and was wondering if there was something I've been missing In the book.
George Medina Jr. Sr. Fire Sprinkler Designer 95-1015 Ka'apeha Pl. Mililani, HI 96819 808-388-5974 CL# -----Original Message----- From: Bob Knight <b...@firebyknight.com> To: sprinklerforum@firesprinkler.org Sent: Tue, Apr 20, 2010 11:29 am Subject: RE: Calc Area George, he way I do this is to average the lengths between heads. For example, you ave a branch line with 6 heads. They are spaced 8', 12', 9', 11', 7', & 0' apart. The average will be 9.5' applying the 1.2 rule (assuming 1500 f) you will have 4.89 (round up to 5) heads per line. If you use the reatest distance of 12' you end up with only 3.87 (round up to 4) heads per ine. If you chose to use the least dimension of 7' you will end up with .63 (round up to 7) heads per line. 7 seems like to many and 4 looks like ot enough. This is why I average the distance between heads in a case such s yours. Bob Knight, CET 660 Hill Rd elba, Idaho 83641 208) 318-3057 208) 495-2057 fax o...@firebyknight.com ww.firebyknight.com -----Original Message----- rom: sprinklerforum-boun...@firesprinkler.org mailto:sprinklerforum-boun...@firesprinkler.org] On Behalf Of George Medina r ent: Tuesday, April 20, 2010 12:41 AM o: SprinklerFORUM@firesprinkler.org ubject: Calc Area f I am calculating a tree type system using the area/design method, and ave several different lengths between sprinklers on a branch line. Would I se the longest length to determine the amount of prinklers on a branch line. I have always used an average (which I've robably been wrong all these years). 1.2vdesign area S = Distance between sprinklers on branch line .2vdesign area S = Distance between sprinklers on branch line George Medina Jr. o virus found in this outgoing message. hecked by AVG - www.avg.com ersion: 9.0.801 / Virus Database: 271.1.1/2820 - Release Date: 04/19/10 0:31:00 _______________________________________________ prinklerforum mailing list prinklerfo...@firesprinkler.org ttp://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: supp...@firesprinkler.org To Unsubscribe, send an email to:sprinklerforum-requ...@firesprinkler.org Put the word unsubscribe in the subject field) _______________________________________________ Sprinklerforum mailing list Sprinklerforum@firesprinkler.org http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: supp...@firesprinkler.org To Unsubscribe, send an email to:sprinklerforum-requ...@firesprinkler.org (Put the word unsubscribe in the subject field)
