What Factors Increase the Frequency of Corrosion Related Leaks in Dry (Pre-Action) Fire Sprinkler Systems?

Warm oxygen and pooled water increase the chances of corrosion.

  1. Each time the compressor cycles on it introduces warm, moist oxygen into the fire sprinkler piping. More oxygen equals more corrosion. More corrosion equals more leaks.
  2. Condensate water from the compressor is acidic and it accelerates the corrosion reaction.
  3. Each pool of trapped water within the dry pipe system is a potential source for corrosion to occur, so every trip event will cause additional corrosion. 

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