>From a parasite: As stated here before, pressure, orifice size, concentration or proximity to fire and sprinkler, location, and source of ignition ALL play parts. Yes, in Minnesota we have documented cases of AF systems controlling fires in several garages attached to 13D or 13R systems.
Scott -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Greg McGahan Sent: Wednesday, September 22, 2010 8:18 PM To: [email protected] Subject: Re: Anti Freeze for commercial Having worked in every facet of this industry except the supply side, I can tell you that there have been many cases of "if a little is good, then more is better". We have also seen antifreeze pumped in systems and then the water turned on in order to complete the filling. This was one method demonstrated to me when I was a helper. Pressure, orifice size and concentration undoubtedly play a part. Do we have data on successful fire sprinkler operation with antifreeze systems? Greg On 9/22/2010 7:54 PM, Chris Cahill wrote: > In theory the FDC negates this good idea of pressure vs. concentration. In > reality FDC aren't used but we live in the theoretical world far, far too > often. > > Chris Cahill > > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of Thom > Sent: Wednesday, September 22, 2010 6:45 PM > To: [email protected] > Subject: RE: Anti Freeze for commercial > > Rod: > > It very well turn out that glycol 70/30 works fine at say 45-50Psi and you > can only use 50/50 when pressure is over 60Psi or something like that. The > same with glycerine. The is a starting end head pressure part of this story > that needs to be worked out, not just the concentration. If 50/50 will work > under all pressures up to 175, What will work at pressures less than 110 or > 60???? > > I think there needs to be a lot more study, before we get anywhere near the > "Definative" answer we need to not feel EXPOSED! > > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of Rod DiBona > Sent: Wednesday, September 22, 2010 5:00 PM > To: [email protected] > Subject: RE: Anti Freeze for commercial > > I hear ya George. I am sure that I will learn more next week in Rhode > Island. Yet another reason to go to every convention. Truth is that we > commonly mix glycol 70/30 out here and Marty tells me for over 30 years with > no reported problem. I look forward to hearing and seeing the facts. At the > end of the day we will get through it and I do have confidence that the > right decision will be made. Just wondered if we knew with reasonable > certainty that the antifreeze was the cause. Questioning why we haven't seen > these in the past; or if we had, was there a different diagnosis? Read the > report from FSI. Interesting and well done but I have some questions. Maybe > they get answered next week! See you down there. > > Rod DiBona > Rapid Fire > > > _______________________________________________ > 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) -- Greg C. McGahan Living Water Fire Protection, LLC. 1160 McKenzie Road Cantonment, FL 32533 850-937-1850 Fax 850-937-1852 _______________________________________________ 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)
