I'd like to ask a question especially to other specifiers out there. Interested in galvanized pipe, particularly on dry systems.
We all know the valid arguments, reasons, and ever-growing evidence against the use galvanized pipe on dry systems. I always find it curious FM Global is still hanging on to it (although it says galvanizing must be applied after roll-grooving).
While the case for nitrogen systems is becoming stronger, and even more cost-effective, I have not seen it going there yet except on military applications, and generally-speaking, owners are not warming up to it yet (maybe I should be a better salesperson). Owner learning-curve is a factor.
At the time of this writing (mid-2021) are other specifiers requiring nitrogen systems across-the board?
Are you requiring schedule 40 pipe on dry systems? Galvanized?
(See also: https://www.meyerfire.com/blog/why-are-dry-pipe-sprinkler-systems-so-difficult )
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