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What is a sprinklers “K-factor”?

April 26, 2017k-factor sprinkler

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What is a sprinklers “K-factor”?

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The K-factor is the nozzles’s / sprinkler’s constant at a given volume flow rate and is generally calculated with a formula: K = Q / √ p K = sprinkler’s / nozzle’s constant Q = volume flow rate (l/min) p = pressure at the sprinkler / nozzle (bar) examples: K-factor 57 = 171 l/min / √ 9 bar K-factor 80 = 240 l/min / √ 9 bar K-factor 115 = 345 l/min / √ 9 bar Generally the thread (DN) is associated with a K-factor.