IDOD
Infused layer? Sent from Outlook Mobile On Fri, Feb 19, 2016 at 8:27 AM -0800, "rongreenman ." <[email protected]> wrote: But in Europe you can use that pipe that has the zinc somehow layered into the pipe during the manufacturing process (not alloyed). I can't recall the name and I don't think they ever got a listing, nor do I know enough metallurgy to describe what they do. but it is supposed to be dramatically better than dipping or plating the surface. On Fri, Feb 19, 2016 at 1:02 AM, å... .... wrote: > Prescriptively, I see no problem. > > > Your client will not be getting much effect-for-their-hard-spent-euro with > the galvanization. > At least that is the summation from the field data with smaller diameter > pipes. > Galvanized pipe fails just as fast as black steel, because of imperfections > in the galvanization application (e.g. pinhole leaks or cracks when pipe is > handled). If this is a water supply pipe to a fire pump, then perhaps the > pressure will be low enough to justify an HDPE pipe. HDPE will require > intensive support, but some areas are predicting 50-100 year life for this > pipe. Another alternative pipe is GRE, which manages somehow to withstand > hogging and sagging on FPSO's, though I have heard of some of these > applications letting go. > > Regarding the freeze prevention, there has to be a better solution than > heat tape, such as circulating a small flow, but as for certain on this > point, I do not absolutely know. > > > Scot Deal > Excelsior Risk/Fire Engineering > _______________________________________________ > Sprinklerforum mailing list > [email protected] > > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org > -- 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) A problem well stated is a problem half solved. -Charles F. Kettering, inventor and engineer (1876-1958) _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
