May 2013 Great article too
Mark -----Original Message----- From: Sprinklerforum [mailto:[email protected]] On Behalf Of Roland Huggins Sent: Tuesday, April 26, 2016 2:46 PM To: [email protected] Subject: Re: Forward Flow for a Backflow Preventer - Character set not allowed I did an article in Sprinkler Age (2013 but not sure which issue) on ow to calculate it as well as other options for the forward flow test. Roland Roland Huggins, PE - VP Engineering American Fire Sprinkler Assn. --- Fire Sprinklers Saves Lives Dallas, TX http://www.firesprinkler.org <http://www.firesprinkler.org/> > On Apr 26, 2016, at 10:15 AM, James Crawford <[email protected]> wrote: > > I know this has been discussed but can’t seem to find it. > > > > NFPA #13 (2013) 8.17.4.6.1 Means shall be provided downstream of all > backflow prevention valves for flow tests at system demand. > > > > We have a small office system, system demand 160 gpm, we have 100 psi > static pressure, the system has a 2 ˝” riser so a 1 Ľ” drain, how much > water can we get out of an 1 Ľ” drain? > > > > Is there anything out there to help determine the size and or number > of outlets required to forward flow at different system demands? > > > > > > Thank you > > > > > > James Crawford > > Phaser Fire Protection Ltd. > > Phone 604-888-0318 > > Fax 604-888-4732 > > Cel 604-790-0938 > > Email [email protected] > > > > _______________________________________________ > Sprinklerforum mailing list > [email protected] > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkl > er.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
