We have verified the churn pressure does not exceed the component rating. Thanks for the discussion on NPSH. I have a draft calculation that evaluates the tank water height and difference of head pressure over time and it sounds like that is overcomplicating the calc.
Karen On Fri, Jun 13, 2014 at 12:47 PM, Roland Huggins <[email protected]> wrote: > Don’t forget that you also look at the churn pressure (so as not to exceed > the max rating of components) at the highest gradient point. > Roland > Roland Huggins, PE - VP Engineering > American Fire Sprinkler Assn. --- Fire Sprinklers Saves Lives > Dallas, TX > http://www.firesprinkler.org > On Jun 13, 2014, at 8:49 AM, [email protected] wrote: >> Karen, >> >> We are required to use the "lowest gradient elevation" as the highest point >> for calculations (see NFPA 22). The lowest tank gradient is usually the >> point where the water may drop before refill begins. >> >> from never-ending meetings in Las Vegas, >> >> Cecil Bilbo > _______________________________________________ > 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
