Do them all the time. There are a few situations where they are a better and/or cheaper solution that dry.
And note the FP is higher than the boiling point of water for pure stuff. I'd like to see the FP mixed 50/50. Yes I know spraying may change things. But really a sprinkler spray is more larger droplets than fine mist. Would like to see that testing too. Chris Cahill, P.E. Fire Protection Engineer Sentry Fire Protection, Inc. 763-658-4483 763-658-4921 fax Email: [email protected] Mail: P.O. Box 69 Waverly, MN 55390 Location: 4439 Hwy 12 SW Waverly, MN 55390 -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of [email protected] Sent: Thursday, October 22, 2009 3:45 PM To: [email protected]; Richard Mote Subject: Re: Report: Antifreeze sprinkler system may have contributed to fatalexplosion Why is there an antifreeze system inside a building? Not knowing what was used in the system, here is the info from the ethylene glycol MSDS: Section 5: Fire and Explosion Data Flammability of the Product: May be combustible at high temperature. Auto-Ignition Temperature: 398°C (748.4°F) Flash Points: CLOSED CUP: 111°C (231.8°F). (Tagliabue.) Flammable Limits: LOWER: 3.2% Products of Combustion: These products are carbon oxides (CO, CO2). Fire Hazards in Presence of Various Substances: Slightly flammable to flammable in presence of open flames and sparks, of heat. Non-flammable in presence of shocks. This looks like antifreeze systems need to be investigated by NIST to determine the dangers. Thank You Rahe Loftin, P.E. Region 7 - GSA Office - 817-978-7299 Fax - 817-978-8644 Cell - 817-371-3102 "Richard Mote" <rich...@rowespri To nkler.com> <[email protected]> Sent by: cc sprinklerforum-bo un...@firesprinkl Subject er.org Report: Antifreeze sprinkler system may have contributed to fatal explosion 10/22/2009 03:18 PM Please respond to sprinklerfo...@fi resprinkler.org; Please respond to Richard Mote <rich...@rowespri nkler.com> Say What? http://www.sierrasun.com/article/20091020/NEWS/910169995/1066&ParentProfile= 1051 _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [email protected] To Unsubscribe, send an email to:[email protected] (Put the word unsubscribe in the subject field) _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [email protected] To Unsubscribe, send an email to:[email protected] (Put the word unsubscribe in the subject field) _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [email protected] To Unsubscribe, send an email to:[email protected] (Put the word unsubscribe in the subject field)
