Very good idea. One of our designers brought this up yesterday and I thought it could be a good idea but was once again caught up on it being a listed / approved method. Truthfully if FM signs off on it that is all we would need. Probably another good idea to run by them. Thanks!
Rod -----Original Message----- From: sprinklerforum-boun...@firesprinkler.org [mailto:sprinklerforum-boun...@firesprinkler.org] On Behalf Of David de Vries Sent: Thursday, May 06, 2010 4:04 PM To: sprinklerforum@firesprinkler.org Subject: Re: Large vertical antifreeze system Thinking outside the box, how about a set-up like an elevated tank? Run a parallel line, smaller diameter connected at the top and bottom of your supply main and put a small circulating pump in it to keep the stuff moving. May cut down on the gelling at very cold temps problem and the separation, if in fact that is a problem. Chris, so is the pre-mixed stuff like homogenized milk? Won't separate? Dave David A. de Vries, P.E., CSP Firetech Engineering Incorporated --- On Thu, 5/6/10, Ron Greenman <rongreen...@gmail.com> wrote: From: Ron Greenman <rongreen...@gmail.com> Subject: Re: Large vertical antifreeze system To: sprinklerforum@firesprinkler.org, "Rod DiBona" <r...@rapidfireinc.com> Date: Thursday, May 6, 2010, 4:44 PM Rod, Did a retrofit to an older residential high rise that had open to the exterior stairwells with dry class one pipes. When the high rise retro ordinance took effect the choices were it will be a wet class three but the the stairwell can be fully enclosed and heated or left open (the residents liked the view of the lake) and the pipe protected. The latter was chosen and the pipe was heat traced, insulated, and shielded with an aluminum wrapper. We're not too cold here (never below the teens) so we figured that there'd be enough heat migration for the valve bases and so far (over twenty years) so good. This approach might work for you since you don't have the pesky hose valves every twelve or so feet and you terminate in heated enclosures. Way better than anti-freeze in my estimation. On Thu, May 6, 2010 at 2:23 PM, Rod DiBona <r...@rapidfireinc.com> wrote: > I Am wondering if anyone has an opinion on a large ( 8" pipe) vertical > antifreeze system. The piping would go straight up a silo almost 300'. Do > you think that there would be an expediated 'separation' problem? I know it > is not the preferrable option but we are wondering if it is an option at all. > This is in cold country. We have 7 deluge systems in a valve house at the > bottom of the silo. We are currently looking at running seven parallel runs > of galv sch 40 up the silo and the down the conveyors. If we could run one > antifreeze filled line up the silo and put the valves in the heated head > house that would save a lot of money. My gut tells me No but thought I would > run it up the flagpole. Appreciate your thoughts. > > Rod DiBona > Rapid Fire > Sent from my BlackBerry Smartphone provided by Alltel > _______________________________________________ > Sprinklerforum mailing list > Sprinklerforum@firesprinkler.org > http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum > > For Technical Assistance, send an email to: supp...@firesprinkler.org > > To Unsubscribe, send an email to:sprinklerforum-requ...@firesprinkler.org > (Put the word unsubscribe in the subject field) > -- Ron Greenman Instructor Fire Protection Engineering Bates Technical College Tacoma, WA Member: AFT WA 4184/AFL-CIO, SFPE, ASCET, NFPA, AFSA, NFSA AFAA, NIBS, WSAFM, WFC _______________________________________________ Sprinklerforum mailing list Sprinklerforum@firesprinkler.org http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: supp...@firesprinkler.org To Unsubscribe, send an email to:sprinklerforum-requ...@firesprinkler.org (Put the word unsubscribe in the subject field) _______________________________________________ Sprinklerforum mailing list Sprinklerforum@firesprinkler.org http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: supp...@firesprinkler.org To Unsubscribe, send an email to:sprinklerforum-requ...@firesprinkler.org (Put the word unsubscribe in the subject field) _______________________________________________ Sprinklerforum mailing list Sprinklerforum@firesprinkler.org http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: supp...@firesprinkler.org To Unsubscribe, send an email to:sprinklerforum-requ...@firesprinkler.org (Put the word unsubscribe in the subject field)
