Kudos for asking the question instead of guessing! If you have access to sprinkler age archives, Roland Huggins wrote a great article on tank sizing several years ago that would be a great reference. In the meantime, there are two schools of thought when it comes to sizing a tank. The conservative approach is sprinkler demand x required duration (which is based on hazard). The hose allowance can be sticky. If the tank is your sole source of water supply then you need to include the hose allowance as well. The same table includes the duration you are looking for. Also, call a tank supplier and they will be happy to help...
Steven Scandaliato, SET CFPS 520.971.2322 Cell -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Jeremy Frazier Sent: Tuesday, September 03, 2013 8:19 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
