Maybe the push to change was to stop any K-Factor War between manufacturers. I have heard it said there was an RTI war and that is why the makers stopped publishing the RTI in the data, i.e., "this head activates the square root of X feet-seconds faster than this one so it has to be better". But with K-factors it is more noticeable because the numbers in the calc sheets are all 2 or 3 decimal places "accurate", so why shouldn't K be?
-----Original Message----- From: Roland Huggins [mailto:[email protected]] Sent: Tuesday, September 24, 2013 4:50 PM To: [email protected] Subject: Re: old 14.5k ecoh brass upright I think it was the 99 edition when it was changed so it has been awhile. Roland Huggins, PE - VP Engineering American Fire Sprinkler Assn. --- Fire Sprinklers Saves Lives Dallas, TX http://www.firesprinkler.org On Sep 24, 2013, at 1:11 PM, Brad Casterline <[email protected]> wrote: > ya ok thanks John, and Roland I was just looking at that section, thanks. I > guess the manufacturer publishes the nominal K-factor in their data, even > though I have not seen it called that. It has been quite a while since I > have used 5.62 or 8.2 instead of 5.6 and 8.0, and it seems this change from > specific to nominal is the reason! _______________________________________________ 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
