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
