That's only part of it: you size the tank for the greater of (sprinklers + HSA) or the fire flow demand, whichever is greater when calculated as flow x duration.
Steve L. -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Jack Carlson Sent: Monday, May 13, 2013 10:31 AM To: [email protected] Subject: RE: Sizing tanks with hydrants? Yes - Tank serves sprinklers and hydrants NFPA 13 2010 edition Figure 11.2.3.1.1 .20/1500 Table 11.2.3.1.2 250 hose for 60 minutes min (assume remote supervision) Jack W. Carlson, SET Triple "A" Fire Protection Office - 251.649.2034 Fax - 251.649.2037 Cell - 706.247.5050 -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Bobby Gillett Sent: Monday, May 13, 2013 1:19 PM To: [email protected] Subject: Sizing tanks with hydrants? When sizing a water storage tank feeding a fire pump for a new facility with multiple sprinkler systems and fire hydrants, do you have to include any type of allowance for the hydrants? The tank will be the sole source of supply for all (rural area). There will be no hose stations or standpipes, only interior sprinkler systems - OH Group II with monitored alarms. Typically this would be an 18,000 gallon tank minimum (.20x1500x60 mins). I don't see anywhere that requires this, just making sure. Thank you in advance. Bobby Gillett Sr. Project Manager Key Fire Protection, Inc. (731) 424-0130 office (731) 424-9285 fax (731) 267-4853 cell <http://www.keyfireprotection.com> www.keyfireprotection.com _______________________________________________ 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
