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<p>Watermark: Fire Safety Academy logo icon, 70 px, 45 % opacity</p> <p><b>New page</b></p><div>== Summary ==<br /> A dry pipe sprinkler system in stand-by (left) and after one sprinkler has opened (right). Based on Fleming (2002), p. 4-72 and Hopkins et al. (2005), p. 15.<br /> <br /> Original vector illustration for [[Dry pipe sprinkler system]], level 2 Intermediate.<br /> <br /> * Source basis: Fleming (2002), p. 4-72 (air or nitrogen pressure holds valve closed, opening sprinkler lets air escape, valve operates); Hopkins et al. (2005), p. 14 (40 °F minimum for wet pipe), p. 15 (water flows out of sprinklers that have opened)<br /> * Alt text: Two panels of a sprinkler system: left, air-filled pipes and a closed dry pipe valve; right, one sprinkler open over a fire and water flowing to it.<br /> <br /> == Licensing ==<br /> New drawing by Fire Safety Academy. © Fire Safety Academy.</div>

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