I figured the question was based on a pump being capable of producing up to 150% of rated flow. That would have nothing to do with sprinkler system design.
Craig L. Prahl, CET Fire Protection CH2MHILL Lockwood Greene 1500 International Drive Spartanburg, SC 29304-0491 Direct - 864.599.4102 Fax - 864.599.8439 CH2MHILL Extension 74102 [email protected] -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Cahill, Christopher Sent: Tuesday, September 03, 2013 10:47 AM To: [email protected] Subject: RE: Fire Pump with storage tank The 150% part of the question makes me wonder if this is military. If so since Feb. 2013 you do size for 150% of the pump (or demand x time whichever is higher which is always the 150% of the pump, seeing as how you can't go past 140% of a pump for design, well unless you want to put in a lot of small pumps.) Chris Cahill, PE* Senior Fire Protection Engineer Burns & McDonnell 8201 Norman Center Drive Bloomington, MN 55437 Phone: 952.656.3652 Fax: 952.229.2923 [email protected] www.burnsmcd.com Proud to be one of FORTUNE's 100 Best Companies to Work For *Registered in: MN -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of [email protected] Sent: Tuesday, September 03, 2013 9:42 AM To: [email protected] Subject: RE: Fire Pump with storage tank Don't forget about Fire Flow as referenced in the IFC section 507. You'll need to call the local responding fire department and ask what method they have approved for determining fire flow. This is a value related to flow (gpm) and duration (hours) for manual fire fighting. It is very often overlooked by fire protection designers because it's not in NFPA 13. This value can have significant impact on your tank and pump selection. Craig L. Prahl, CET Fire Protection CH2MHILL Lockwood Greene 1500 International Drive Spartanburg, SC 29304-0491 Direct - 864.599.4102 Fax - 864.599.8439 CH2MHILL Extension 74102 [email protected] -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Jeremy Frazier Sent: Tuesday, September 03, 2013 10:19 AM To: [email protected] Subject: Fire Pump with storage tank When you size a tank, do you size it for 150% of the fire pump demand or just the sprinkler demand? Would you also need to include the hose stream if there is no inside hose stations? This is the first time I'm doing one of these, and I would hate to get this wrong. Jeremy Frazier Designer Cavalier Fire Protection P:571-931-1004 F:571-931-1010 _______________________________________________ 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 _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
