Our experiences have been that almost always the really old pipe holds pressure better than new pipe and looks better inside than the new stuff that has been in use for a few years.
We recently took out some pipe that was 99 years old and it looked like w inside. Interestingly enough, the pipe was black and in a building 3 blocks off of the Bay, and was not even rusty on the outside. The building was an old warehouse without conditioned air. In a new building this close to the bay, the pipe would be rusty in days. Greg Living Water Fire Protection, LLC 1160 McKenzie Road Cantonment, FL 32533 850-937-1850 Fax: 850-937-1852 -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Ron Greenman Sent: Monday, June 18, 2007 9:05 AM To: [email protected] Subject: Re: Reuse of existing sprinkler pipe Rahe, If I'm not mistaken new steel pipe is C140 or C150 and the 100/120 is an average to account for deterioration over the projected life of the pipe (50 years, again if I'm not mistaken). In the real world I've seen 100 year old pipe as smooth as the day it was made and 5 year old pipe that looked like the inside of a cave. On 6/18/07, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote: > Todd et al, > As an additional note, what C-factor do you use for calculating the > existing pipe? > > Thank You > > Rahe Loftin, P.E. > Region 7 - GSA > Office - 817-978-7299 > Fax - 817-978-8644 > Cell - 817-371-3102 > > > > > > "Todd Williams - > work" To > <[EMAIL PROTECTED]> [email protected] > Sent by: cc > sprinklerforum-bo > [EMAIL PROTECTED] Subject > er.org Re: Reuse of existing sprinkler > pipe > > 06/18/2007 08:14 > AM > > > Please respond to > [EMAIL PROTECTED] > resprinkler.org > > > > > > > As far as re-using pipe that has been taken down, In general most of > it goes to scrap, especially if a demo contractor takes it down > and/or there is evidence of corrosion or MIC. On a practical note, > not all of the pipe in my client's shops is new, so some used stuff > it out there. This especially hold true for oddball pipe and > fittings, such as 3-1/2". As far as I know, most of it is used for > things like drops or where the unusual stuff applies and not for use > on new installations. I don't necessarily police that stuff if I'm > doing shop drawings for a contractor, so I can't say for sure what > everyone does. > > For pipe that is up there, it's re-used all the time. When an > addition is putting on an existing building and the plan is to > connect to the existing system, you don't remove all of the existing > and replace it as well. If you priced a job that way, you'd never get > the contract. > > The contractors amongst us could speak for the pressure testing and > warrantee issues better than I. > > At 08:44 AM 6/18/2007, you wrote: > >Both > > > >Rahe Loftin > > > > > > > >----- Original Message ----- > >From: "Todd Williams - work" [EMAIL PROTECTED] > >Sent: 06/18/2007 08:26 AM AST > >To: [email protected] > >Subject: RE: Reuse of existing sprinkler pipe > > > > > > > >I'm getting a little confused. Are we talking about re-using pipe > >that remains in place or has been taken down and someone wants to put back > up? > > > > > >At 08:19 AM 6/18/2007, you wrote: > >>No way would I reuse 25 year old pipe or permit it to be reused on a > >>project of mine. Per 13 you can't reuse heads that have been removed > >>either. > >> > >>If you take down 25 year old pipe it should be scrapped. IMHO I would > >>not want to sign my name to that warranty. Plus, I would only warranty > >>that part of the system I touched, never the entire thing. > >>Guaranteeing someone else's work is risky. > >> > >>It would be like putting a new engine in your car and then putting the > >>old oil in it from the previous one that blew up. It might work for a > >>while but who knows. It isn't worth taking the risk. Do it right the > >>first time. > >> > >> > >>Craig L. Prahl, CET > >>Fire Protection Group > >>Mechanical Department > >>CH2MHILL > >>Lockwood Greene > >>1500 International Drive > >>PO Box 491, Spartanburg, SC 29304-0491 > >>Direct - 864.599.4102 > >>Fax - 864.599.8439 > >>[EMAIL PROTECTED] > >>http://www.lg.com > >> > >> > >>-----Original Message----- > >>From: [EMAIL PROTECTED] > >>[mailto:[EMAIL PROTECTED] On Behalf Of > >>[EMAIL PROTECTED] > >>Sent: Sunday, June 17, 2007 4:14 PM > >>To: [email protected] > >>Subject: Reuse of existing sprinkler pipe > >> > >>Dear forum, > >>What is the consensus about reusing existing sprinkler piping in a 25 > >>year old system. The question here is, what is the typical design for > >>providing new pipe and sprinklers in some parts of a building but using > >>the existing pipe for the rest of the system and still warranting the > >>entire system - existing and new? > >> > >>What about taking out existing 25 year old pipe and relocating it for > >>use in another area? > >> > >>Thank You > >> > >>Rahe Loftin, P.E. > >>Region 7 - GSA > >>Office - 817-978-7299 > >>Fax - 817-978-8644 > >>Cell - 817-371-3102 > >> > >> > >>_______________________________________________ > >>Sprinklerforum mailing list > >>[email protected] > >>http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum > >> > >>To Unsubscribe, send an email > >>to:[EMAIL PROTECTED] > >>(Put the word unsubscribe in the subject field) > >>_______________________________________________ > >>Sprinklerforum mailing list > >>[email protected] > >>http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum > >> > >>To Unsubscribe, send an email to:[EMAIL PROTECTED] > >>(Put the word unsubscribe in the subject field) > > > >Todd G. Williams, PE > >Fire Protection Design/Consulting > >Stonington, Connecticut > >860-535-2080 > >www.fpdc.com > >_______________________________________________ > >Sprinklerforum mailing list > >[email protected] > >http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum > > > >To Unsubscribe, send an email to:[EMAIL PROTECTED] > >(Put the word unsubscribe in the subject field) > > > > > >_______________________________________________ > >Sprinklerforum mailing list > >[email protected] > >http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum > > > >To Unsubscribe, send an email to:[EMAIL PROTECTED] > >(Put the word unsubscribe in the subject field) > > Todd G. Williams, PE > Fire Protection Design/Consulting > Stonington, Connecticut > 860-535-2080 > www.fpdc.com > > _______________________________________________ > Sprinklerforum mailing list > [email protected] > http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum > > To Unsubscribe, send an email to:[EMAIL PROTECTED] > (Put the word unsubscribe in the subject field) > > > > > _______________________________________________ > Sprinklerforum mailing list > [email protected] > http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum > > To Unsubscribe, send an email to:[EMAIL PROTECTED] > (Put the word unsubscribe in the subject field) > -- Ron Greenman at home.... _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum To Unsubscribe, send an email to:[EMAIL PROTECTED] (Put the word unsubscribe in the subject field) _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum To Unsubscribe, send an email to:[EMAIL PROTECTED] (Put the word unsubscribe in the subject field)
