The Academy is running a webinar on this topic with some of the best minds, from the Best Practices group. Rather timely for this thread. http://www.fsi-bp.org/HomeOpen.aspx?id=1260 takes you to a Best Practices article on AF; much more during the webinar. glc
Webinar: Designing Around Antifreeze The Panelists for this live broadcast are: Cecil Bilbo, Academy of Fire Sprinkler Technology Top Myers, Myers Risk Services Paul Johnson, Fire Sprinkler Industry Best Practices https://www1.gotomeeting.com/register/898182904 The NFPA Standards Council recently prohibited the use of antifreeze in newly installed fire sprinkler systems that protect dwelling units. This effectively took away the only option that many installing contractors believe they have when installing pipe in colder regions of the world. You'll learn the history behind the decision to temporarily ban antifreeze in some new systems. This broadcast will discuss how your company should be responding to the situation. We will discuss the different options available to ensure piping stays warm enough not to freeze. We will also discuss the myths about and solutions for insulating pipe. We will cover the rules for dry systems in Residential Occupancies and introduce the latest technologies for this application. Title: Designing Around Antifreeze Date: Thursday, October 7, 2010 Time: 11:00 AM - 1:00 PM CDT -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Chris Cahill Sent: Wednesday, September 22, 2010 8:55 PM To: [email protected] Subject: RE: Anti Freeze for commercial 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) _______________________________________________ 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)
