Hello Jamie.seidl, I have used it for underground in 13R, Too bad I have a customer with 200 feet of 3" sitting in a barn on his property going bad from exposure due to him not building the other 4 cabins it was to feed.
Monday, July 30, 2012, 11:16:16 PM, you wrote: > I believe blaze master is listed for UG, too bad 3" is special > order... If you've got the time Greg, CPVC is probably the easiest way to go. > Jamie > Sent from my iPhone > On Jul 30, 2012, at 7:12 PM, Ron Greenman <[email protected]> wrote: >> If you follow the gas piping rules you'd use coated black steel, threaded, >> with 10 mil (maybe more, I don't recall without a book to reference) >> wrapping around the fittings, then tarred (again I think). Or, special >> dispensation from your local Pope, and use Blazemaster while underground. >> Comes in 3" (I believe that's what you'd said you were planning to use, is >> not under any threat from fire underground, doesn't corrode, and flows >> better. The kicker is not being listed for the purpose though I'd bet only >> because it hasn't been tested for this application. >> On Mon, Jul 30, 2012 at 3:59 PM, Mark Sornsin <[email protected]>wrote: >>> Greg: >>> NFPA 13 forbids steel pipe underground, with the exception of 'dry' FDC >>> piping. In that case you are allowed to use galvanized. Don't recall all of >>> the specifics (like if wrapping is required). But to your point the >>> problem is corrosion - the galvanizing doe, then tsn't help much >>> underground. However, I don't know why a properly wrapped pipe couldn't do >>> just fine underground. Except that 'properly wrapped' may be too difficult >>> to achieve...? There may be too much risk of an Achilles heel in the form >>> of an unprotected surface somewhere along the run. >>> So how about cut-grooved ductile iron instead? >>> Mark A. Sornsin, PE| Fire Protection Engineer >>> Ulteig Engineers, Inc.| Fargo, ND >>> [email protected] >>> -----Original Message----- >>> From: [email protected] [mailto: >>> [email protected]] On Behalf Of Gregory Lindholm >>> Sent: Monday, July 30, 2012 3:10 PM >>> To: SprinklerFORUM >>> Subject: Galvanized underground main >>> I think I have seen this before, but could not find it. >>> We need to run a wet main underground from one building to another. They >>> are about 15' apart. The main will be 7' deep to get below frost. We plan >>> to run 3" galv. sch. 40 with galv. grooved fittings. There will only be 2 >>> ell & 4 couplings underground, and plan to wrap it with what the plumber >>> use to wrap underground. >>> Is there anything wrong with this idea, either code or common sense? >>> Greg Lindholm >>> -------------- next part -------------- >>> An HTML attachment was scrubbed... >>> URL: < >>> http://fireball.firesprinkler.org/mailman/private/sprinklerforum/attachments/20120730/e7a4d52d/attachment.html >>> _______________________________________________ >>> Sprinklerforum mailing list >>> [email protected] >>> http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum >>> _______________________________________________ >>> Sprinklerforum mailing list >>> [email protected] >>> http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum >> -- >> Ron Greenman >> Instructor >> Fire Protection Engineering Technology >> Bates Technical College >> 1101 So. Yakima Ave. >> Tacoma, WA 98405 >> [email protected] >> http://www.bates.ctc.edu/fireprotection/ >> 253.680.7346 >> 253.576.9700 (cell) >> Member: >> ASEE, SFPE, ASCET, NFPA, AFSA, NFSA, AFAA, NIBS, WSAFM, WFC, WFSC >> They are happy men whose natures sort with their vocations. -Francis Bacon, >> essayist, philosopher, and statesman (1561-1626) >> -------------- next part -------------- >> An HTML attachment was scrubbed... >> URL: >> <http://fireball.firesprinkler.org/mailman/private/sprinklerforum/attachments/20120730/390475fc/attachment.html> >> _______________________________________________ >> Sprinklerforum mailing list >> [email protected] >> http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum > _______________________________________________ > Sprinklerforum mailing list > [email protected] > http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum -- Best regards, Charles mailto:[email protected] _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum
