Sprinklers included Duraspeed on the frame into about 1977, then the similar sprinkler included F950 on the frame.
Scott (763) 425-1001x12 Office (612) 759-5556 Cell -----Original Message----- From: Sprinklerforum [mailto:[email protected]] On Behalf Of John Corcoran Sent: Tuesday, June 17, 2014 1:57 PM To: [email protected] Subject: RE: Guessing age of system Reply Courtesy of Tyco's 'The Station House' newsletter, February, 2006, volume 4, issue 1: The Grinnell "Duraspeed" sprinkler, a staple in the industry through the early 1990's made its introduction in 1931 (patented in 1932) - the same year in which tests showed quartzoid bulb sprinklers to be more heat sensitive than their solder link counterparts. John Corcoran Globe Fire Sprinkler Corporation -----Original Message----- From: Sprinklerforum [mailto:[email protected]] On Behalf Of [email protected] Sent: Tuesday, June 17, 2014 2:54 PM To: [email protected] Subject: Re: Guessing age of system Reply Steve, et al: I do believe the F950 Duraspeed was introduced in the 1930's... Regards to All- Jerry [email protected]_ (mailto:[email protected]) Jerry D. Watts, SFPE President & Co-Founder ACCENT FIRE ENGINEERING INT'L. Ltd. Santa Fe, New Mexico USA (800) 503.1961 In a message dated 6/17/2014 12:51:10 P.M. Mountain Daylight Time, [email protected] writes: Anyone know when Grinnell first started making the F950? Also, what vintage would we guess a 4" thrd X 2-1/2" thrd X 4" flg tee to be? Steve _______________________________________________ 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 _______________________________________________ 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
