At least far enough to make the calc work, and stop short of a new tap. Do not forget to subtract velocity pressure where it is not acting.
-----Original Message----- From: Brad Casterline [mailto:[email protected]] Sent: Monday, April 04, 2011 12:40 PM To: [email protected] Subject: RE: Design solution needed "...because of utilities and other obstruction that's in the way." Would this still be true if you replaced the 1 1/4" with bigger pipe in the same location? Brad Casterline, NICET IV Project Manager Fire Protection FSC, Inc. P: 913-722-3473 D: 816-841-8732 [email protected] www.fsc-inc.com Engineering Solutions for the Built Environment -----Original Message----- From: Todd Williams [mailto:[email protected]] Sent: Monday, April 04, 2011 12:35 PM To: [email protected] Subject: RE: Design solution needed Probably the only obstructions to bringing in a new main that would make a pump and tank viable are railroad tracks, a river or a crevasse. Work up the cost on the P&T and tell them it is either this or bring in a new underground. 1-1/4" copper is not going to cut it. The P&T may sound crazy, but stupider things have prevailed. >I'm designing a system for a small restaurant, the kitchen is a OH-I occupancy, and the dining area is a LH occupancy, the available static pressure is 106 psi residual 62 psi with 751 gpm. My problem is that the incoming service is a 1¼", and to bring in a larger service is very expensive because of utilities and other obstruction that's in the way, the GC suggested that we put in a tank and booster pump, to me it sounds crazy to install a tank and pump for a building that's less than 4000 sq. ft. when you have available city pressure. > > > >Any ideas how to go about this, please advise. > > > >Best Regards, > > > >Joel Chaim | Nicet level II > > Todd G. Williams, PE Fire Protection Design/Consulting Stonington, CT 860.535.2080 www.fpdc.com _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [email protected] To Unsubscribe, send an email to:[email protected] (Put the word unsubscribe in the subject field) _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [email protected] To Unsubscribe, send an email to:[email protected] (Put the word unsubscribe in the subject field) _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [email protected] To Unsubscribe, send an email to:[email protected] (Put the word unsubscribe in the subject field)
