I just modeled it and it turned out like Ron (and everyone else) said. 250F is not ambient at the ceiling, right? Heads don't go from ambient to popping the instant air at the activation temp hits them, it takes a while, and a sustained heat flowing on them. The difference in the heat-up time is RTI (ft-sec)^.5
Brad On Feb 18, 2016 1:42 PM, "Bruce Verhei" <[email protected]> wrote: > Jerry > > I'd also have a concern about corrosion. It sounds reasonable that warm > moist air condensing on the heads would cause them to wet throughout the > day. > > Best > > > > On Feb 18, 2016, at 11:15, Michael Hill <[email protected]> wrote: > > > > Do not have NFPA 13 in front of me, but there is a section that allows > you > > to use SR heads if there are no QR heads in the temperature that you > need. > > > > Mike Hill > > > > -----Original Message----- > > From: Sprinklerforum [mailto: > [email protected]] > > On Behalf Of Jerry Van Kolken > > Sent: Thursday, February 18, 2016 2:12 PM > > To: [email protected] > > Subject: Sprinkler Temp Vs. Response type > > > > I have a situation where there is a parts steam cleaner that will put out > > 250 deg. Steam when opened to remove parts. The sprinklers in the area > are > > quick response type. I want to put Extra High temp heads (325 deg) over > the > > cleaner, but I can only find them in standard response at that temp. Am I > > being over cautious with that high temp of rating? And would all the > heads > > in the area have to be changed to standard response type? > > > > > > > > Jerry Van Kolken > > > > Millennium Fire Protection Corp. > > > > 2950 San Luis Rey Rd. > > > > Oceanside, CA 92058 > > > > (760) 722-2722 FX 722-2730 > > > > > > > > We Have Moved Please update your records with the new address > > > > > > > > _______________________________________________ > > 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
