The latest issue of Sprinkler Age has an article addressing how to calculate the flow for exercising the BFP. You certainly don't need six 2-1/2 hose valves. Approximately what pressure do you have at the riser when flowing the system demand (without hose demand unless you have INSIDE hose connections).
Roland Roland Huggins, PE - VP Engineering American Fire Sprinkler Assn. --- Fire Sprinklers Saves Lives Dallas, TX http://www.firesprinkler.org On May 13, 2013, at 12:45 PM, Ralphy Henderson <[email protected]> wrote: > I have an 8" riser with BFP with a system demand of 1500 gpm. I was > going to provide a test header consisting of (6) 2 1/2" hose valves for > the forward flow testing of the backflow preventor but then starting > wondering if there were any other means or devices out there that could > achieve the same flow? Fewer pieces would be nice. What are you guys > using out there? > _______________________________________________ > 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
