I'm thinking there could be several steel pipes out there that are corrosion resistant, either due to alloy or to coating, but I coyuldn't say in dyna thread would be amomgst them.
On Mon, Apr 29, 2013 at 12:12 PM, Gregory Lindholm <[email protected]> wrote: > NFPA 13 - 2013, section 8.3.4.4 states that K 4.2 heads can be used on dry > pipe systems if the piping is corrosion resistant or internally galvanized. > I have somebody telling me that Allied Dyna-Thread has a corrosion > resistant coating which conforms to 8.3.4.4, which I disagree with, but is > there a steel pipe that is corrosion resistant but not galvanized? > Greg Lindholm > _______________________________________________ > 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) _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
