Black pipe has a protective coating and the more expensive seems to have a better coating. These are usually of a varnish type. Remember that those slings of Hyundai black steel 53 & 54 came here on a boat.
On Wed, Mar 17, 2010 at 12:13 PM, <[email protected]> wrote: > The appendix of 13 (A.8.16.4.2.1) does give some commentary for certain > conditions where "If corrosive conditions are not of great intensity and > humidity > is not abnormally high, good results can be obtained by a protective coating > of red lead and varnish or by a good grade of commercial acid-resisting > paint. The paint manufacturer's instructions should be followed in the > preparation of the surface and in the method of application." > > But the point being that pipe exposed to the weather is to have some sort of > protection. If you take this literally it appears to leave no option for > non-protected black steel pipe in exposed conditions. > > > > > Craig L. Prahl, CET > Fire Protection Specialist > 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.ch2m.com > > > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of John Denhardt > Sent: Wednesday, March 17, 2010 2:44 PM > To: [email protected] > Subject: RE: Exterior dry system piping under canopy > > I agree with Ron. Just because it is outside under a canopy would not mean > it has to be galvanized. I think a lot has to be where the building is > located. I would be perfectly happy with a coat of paint on the piping in an > area where occasionally the pipe might be exposed to the elements. > > > John > > John August Denhardt, P.E. > Strickland Fire Protection Incorporated > 5113 Berwyn Road > College Park, Maryland 20740 > Office Telephone Number: 301-474-1136 > Mobile Telephone Number: 301-343-1457 > FIRE SPRINKLERS SAVE LIVES > > > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of Ron Greenman > Sent: Wednesday, March 17, 2010 2:49 PM > To: [email protected] > Subject: Re: Exterior dry system piping under canopy > > I think it's ambiguous because it is ambiguous. I wouldn't have a bit of > trouble worrying about black piper exposed to weather in Arizona or Saudi > Arabia. Might get a surface rusting but that's protective. I might, on the > other hand, be horrified of the thought of using anything but that stuff that > has the zinc impregnated into the outer layers of the steel rather than as > just a coating (don't want to name it and be accused of advertising a > product) on a North Sea offshore oil platform, even for inside stuff. All is > situational. > > On Wed, Mar 17, 2010 at 11:38 AM, Bobby Gillett > <[email protected]> wrote: >> I was in FL at one time a few years ago, could be the same one. >> >> Not the same, but still good. >> >> Bobby Gillett >> Sr. Project Manager >> Key Fire Protection, Inc. >> (731) 424-0130 office (731) 424-9285 fax >> (731) 267-4853 cell >> [email protected] >> >> >> >> -----Original Message----- >> From: [email protected] >> [mailto:[email protected]] On Behalf Of Chris >> Cahill >> Sent: Wednesday, March 17, 2010 1:35 PM >> To: [email protected] >> Subject: RE: Exterior dry system piping under canopy >> >> Oooops, nah, it's all different if it's not here. I have to drive >> through TN next month to get to FL. It's not all the same "down there", lol. >> >> Must be the other Bobby, yeah that's my story. >> >> Chris >> >> -----Original Message----- >> From: [email protected] >> [mailto:[email protected]] On Behalf Of Bobby >> Gillett >> Sent: Wednesday, March 17, 2010 1:29 PM >> To: [email protected] >> Subject: RE: Exterior dry system piping under canopy >> >> No no, Bobby is in TN. and this is a fully covered canopy. - beam & >> purlin construction. >> >> Bobby Gillett >> Sr. Project Manager >> Key Fire Protection, Inc. >> (731) 424-0130 office (731) 424-9285 fax >> (731) 267-4853 cell >> [email protected] >> >> >> >> -----Original Message----- >> From: [email protected] >> [mailto:[email protected]] On Behalf Of Chris >> Cahill >> Sent: Wednesday, March 17, 2010 1:26 PM >> To: [email protected] >> Subject: RE: Exterior dry system piping under canopy >> >> I don't see it as that clear. '02-8.15.3.2.3 Where corrosive >> conditions exist OR the piping is exposed to weather...... >> >> So I guess it depends on the definition of "exposed to weather". One >> could say outside period. Bobby is in FL, I imagine ambient air is a >> little moister and perhaps saltier even inland than here in the flooded >> tundra. >> >> Or I guess it could mean gets rained on so with a cover maybe not >> exposed to weather. >> >> I know open parking ramps don't fair well here with black nor do wash >> bays inside. Generic store front canopy a little grayer. >> >> Chris Cahill, P.E. >> Fire Protection Engineer >> Sentry Fire Protection, Inc. >> >> 763-658-4483 >> 763-658-4921 fax >> >> Email: [email protected] >> >> Mail: P.O. Box 69 >> Waverly, MN 55390 >> >> Location: 4439 Hwy 12 SW >> Waverly, MN 55390 >> -----Original Message----- >> From: [email protected] >> [mailto:[email protected]] On Behalf Of John >> Denhardt >> Sent: Wednesday, March 17, 2010 12:39 PM >> To: [email protected] >> Subject: RE: Exterior dry system piping under canopy >> >> It is not required to be galvanized per NFPA 13. >> >> John >> >> >> John August Denhardt, P.E. >> Strickland Fire Protection Incorporated >> 5113 Berwyn Road >> College Park, Maryland 20740 >> Office Telephone Number: 301-474-1136 Mobile Telephone Number: >> 301-343-1457 FIRE SPRINKLERS SAVE LIVES >> >> >> -----Original Message----- >> From: [email protected] >> [mailto:[email protected]] On Behalf Of Bobby >> Gillett >> Sent: Wednesday, March 17, 2010 1:44 PM >> To: [email protected] >> Subject: Exterior dry system piping under canopy >> >> I have a dry system (non-FM in TN) under an exterior canopy. Is there >> somewhere it states the pipe and fittings are to be corrosion >> resistant (ex. >> Galv.)? I thought somewhere it stated for preact it had to be >> regardless, but I can't find that either. Maybe I'm pulling an old >> spec from a project out of my brain as the last two I've done have >> required galv. piping per the spec book. >> >> >> >> >> >> Bobby Gillett >> >> Sr. Project Manager >> >> Key Fire Protection, Inc. >> >> (731) 424-0130 office (731) 424-9285 fax >> >> (731) 267-4853 cell >> >> <mailto:[email protected]> >> [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) >> >> _______________________________________________ >> 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) >> >> No virus found in this incoming message. >> Checked by AVG - www.avg.com >> Version: 9.0.791 / Virus Database: 271.1.1/2752 - Release Date: >> 03/17/10 02:33:00 >> >> _______________________________________________ >> 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) >> >> No virus found in this incoming message. >> Checked by AVG - www.avg.com >> Version: 9.0.791 / Virus Database: 271.1.1/2752 - Release Date: >> 03/17/10 02:33:00 >> >> _______________________________________________ >> 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) >> > > > > -- > Ron Greenman > Instructor > Fire Protection Engineering > Bates Technical College > Tacoma, WA > > Member: > SFPE, ASCET, NFPA, AFSA, NFSA AFAA, NIBS, WSAFM, WFC > _______________________________________________ > 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) > -- Ron Greenman Instructor Fire Protection Engineering Bates Technical College Tacoma, WA Member: SFPE, ASCET, NFPA, AFSA, NFSA AFAA, NIBS, WSAFM, WFC _______________________________________________ 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)
