Could you run the piping above the ceiling and then use stainless drops into the space?
Matt Grisé PE*, LEED AP Sales Engineer Alliance Fire Protection *Licensed in KS & MO 913.888.0647 ph 913.888.0618 f 913.927.0222 cell www. AFPsprink.com -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of [email protected] Sent: Wednesday, November 17, 2010 11:24 AM To: [email protected]; [email protected] Subject: RE: Specialty piping? NO SS is not out of the question, just looking for any viable options as in every case SS for process makes money, SS for sprinklers is an overhead cost. Clients want cheap for overhead costed systems, they don't care as much what they spend for systems that make money. This is not a kitchen, but an industrial processing plant. Plenty of combustible commodities going into the mix in various phases of production. Final product not combustible. OH would be appropriate for the hazard and is agreed upon by Underwriter as well. LH, not a chance. Most likely we will be using SS. Craig L. Prahl, CET Fire Protection CH2MHILL Lockwood Greene 1500 International Drive Spartanburg, SC 29304-0491 Direct - 864.599.4102 Fax - 864.599.8439 CH2MHILL Extension 74102 [email protected] -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Chris Cahill Sent: Wednesday, November 17, 2010 12:12 PM To: [email protected] Subject: Re: Specialty piping? So the process piping is SS but that won't work for the sprinkler pipe? I've done a couple SS jobs in small areas and they weren't bad. $ for sure but not as bad as I originally would have guessed. As far as plastic I think some place it was mentioned obstructed construction. That would scare me a bit. Smooth clg would be better. Tighten up spacing for sure. Many of the plastic fire testing when the pipe 'melted' a fine spray was created and suppressed the test fire. Or so I was told. Think linear suppression system. So it not a complete rupture type failure. And are we really in agreement a commercial/industrial kitchen is OH. Seriously everything is metal with usually limited ingredients and finished products. Now a few plastic pallets seals the OH but could be a case around where LH is appropriate. The plastic pipe then becomes more acceptable. I also believe plastic is semi-common in acid dip tank areas. And finally the chemical plant where they make and bottle the stuff has solved this problem. I'd be very comfortable using what they use for process piping as long as it's pressure appropriate and metallic. Chris -----Original Message----- From: Todd Williams <[email protected]> Sender: [email protected] Date: Wed, 17 Nov 2010 11:48:41 To: <[email protected]> Reply-To: [email protected] Subject: Re: Specialty piping? FWIW, In the early to mid 80's, the company I was working for was asked to look at a room with an extremely corrosive environment (I believe OH2 occupancy). Galvanized pipe would rot in approximately 9 months. We were asked for a solution. This new stuff had come on the market called CPVC. Although it was not approved for that occupancy, we got the manufacturer and AHJ's to sign off on using it. We figured the worst that could happen is that it ate away and we would have to replace it again in a few months. Although the occupants of that mill are long gone, the pipe survived without damage and is still in service. Heads were wax coated. Probably not applicable nor could get everyone to sign off, but it is food for thought. At 03:08 AM 11/17/2010, you wrote: >The wash down procedure they are speaking of is Bleach, ranging from >3% to 12.5%. That stuff will eat stainless sheet metal, black pipe, >galvanized pipe (not as fast as black) and I expect copper. We have >had limited success using a spray on galvanized coating from the >NAPA parts house. The very limited work we have done in food plants >did not include stainless pipe. > >-------------------------------------------------- >From: <[email protected]> >Sent: Tuesday, November 16, 2010 10:36 AM >To: <[email protected]> >Subject: Specialty piping? > >>Got a food mfgr facility. Owner states that wash down procedures >>will eat carbon steel, even galvanized. Is stainless pipe & ftgs. >>the only option? The area will be OH II, concrete tee >>construction. All process equipment is SS. >> >>Craig L. Prahl, CET >>Fire Protection >>CH2MHILL >>Lockwood Greene >>1500 International Drive >>Spartanburg, SC 29304-0491 >>Direct - 864.599.4102 >>Fax - 864.599.8439 >>CH2MHILL Extension 74102 >>[email protected] >> >>_______________________________________________ >>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) Todd G. Williams, PE Fire Protection Design/Consulting Stonington, CT 860.535.2080 www.fpdc.com _______________________________________________ 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)
