Terri, Long time since we have talked. Just wanted to add one more aspect to anti-freeze systems.
I would be cautious as to the use of what NFPA 13 calls "e factors" in Table A.22.4.4.5.1. These do not necessarily equate to an HW C factor. This only happens at certain flows. On top of that, NFPA 13 has you using the old '40s Moody Diagram to find the Friction Factor. Here in the 21st Century, it can be calculated directly. Rahe Loftin Sent from my Blackberry ----- Original Message ----- From: "Terri Leyton" [[email protected]] Sent: 07/09/2010 10:55 AM MST To: <[email protected]>; <[email protected]> Subject: RE: Anti-Freeze Ever see the movie Groundhog Day? Happy Friday all. T Terri Simmons Leyton PROTECTION DESIGN & CONSULTING Ph: 858-751-2930 - ext. 101 Fax: 858-751-2933 Cell: 619-871-8450 Knowledge of what is possible is the beginning of happiness. --George Santayana -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of [email protected] Sent: Friday, July 09, 2010 10:47 AM To: [email protected] Subject: Re: Anti-Freeze So if I understand we have the same problem covered by 3 standards and at this point the 3 committees voted for different solutions. Great Chris Cahill Sent from my Verizon Wireless BlackBerry -----Original Message----- From: Roland Huggins <[email protected]> Sender: [email protected] Date: Fri, 9 Jul 2010 10:26:23 To: <[email protected]> Reply-To: [email protected] Subject: Re: Anti-Freeze Technically there are not yet any TIA's. There are only several TIA's in being processed. There are two on 13D: one saying a ban (call it a moratorium) and the other allowing a 50% concentration by volume. There are the same two on 13R. NFPA 13 initial saw only an initial TIA on 50% but a second was submitted immediately thereafter but the due date lagged the first a tad. KEEP IN MIND THAT NFPA 13 IS ONLY ON RESIDUAL UNITS The initial outcome was: 13D: passed a moratorium and rejected the 50% 13R: rejected both 13: passed a 50%. The outcome of the recirculation ballot will be known early next week as well as coordination with the second TIA on 13. THEN the TIA's will be reviewed by the NFPA Standards Council at the Aug (3rd to the 5th) meeting to determine what will be issued as an official TIA. Roland On Jul 9, 2010, at 9:05 AM, Gregg Fontes wrote: > I have reviewed the July 2010 TIA, so if you have a system that is > in design > as we speak, if you use a 50% or less factory premixed solution, it is > acceptable? The revised TIA, I think states that it is? > > Thanks, > Gregg Fontes > Cen-Cal Fire Systems, Inc. > 209-334-9119 _______________________________________________ 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) _______________________________________________ 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)
