Rick, I presume you're looking at this from a code issue and not a cost one. You may want to take at the requirements for buried black steel gas line. I believe the sleeve for this has to be 10 mils thick with the joints wrapped with 10 mils of pvc tape and then sealed with the goo. And it's been a long time (1979) since I've dealt with plumbing so my numbers may be way off. Try your plumbing code for guidelines relative to protecting like piping.
On Mon, Jun 22, 2009 at 1:31 PM, Matsuda, Richard<[email protected]> wrote: > NFPA-13, 2007 edition, paragraph 10.1.3, allows internally galvanized > steel pipe for underground use for the fire department connection if > "coated and wrapped". > > Does the bituminous coating requirement apply to the entire length of > the piping or does it apply only to the bolts and joints? The handbook > provides some explanation, but it is vauge. The pipe manufacturers that > I have contacted have indicated that coating for "externally" galvanized > piping is not necessary. They state that the coating should be applied > to only the bolts and joints and the entire piping should be > poly-wrapped. > > Any opinions? > rick matsuda > city of dallas, building inspection dept. > > _______________________________________________ > Sprinklerforum mailing list > http://lists.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 _______________________________________________ Sprinklerforum mailing list http://lists.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)
