Can carbon steel, zinc plated or galvanized pipe instead of stainless steel and other approved corrosion-resistant materials for water mist applications be used for water mist systems?
The general answer is “NO”. However, for water mist systems using nozzles with relatively large orifices comparable to those of spray nozzles, electro galvanized steel piping may in some cases be accepted by some authorities having jurisdiction, provided that piping is approved for its use and that regular inside inspections are undertaken.
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