SHOCK TO THE SYSTEM A surprising innovation in in rack sprinkler design reduces installation costs significantly without sacrificing protection We re kind of blowing the top off of everything we ve done in the past says FM Global s Senior Research Engineer Kristin Jamison The new guidelines are based on a three year research project utilizing small inter mediate and large scale testing as well as fire modeling technology that is continuously being developed by FM Global The new design is based on a primary understanding of how fire develops within a storage rack as well as how the water flow from in rack sprin klers interacts with a fire It also takes a revolutionary approach by using quick response high K factor sprinklers The higher the K factor the more water can flow through the sprinkler These high K factor sprinklers have been designed for and deployed in ceiling level sprinkler projection but are not generally used or tested for in rack sprinklers Recently completed FM Global research has led to a new under standing of how in rack sprinklers can be deployed in high rack storage facili ties to maximize protection and reduce cost The research is part of FM Global s overall business strategy to advance fire pro tection and help clients minimize property loss The new guidelines offer FM Global clients better simpler more cost effective and flexible in rack sprinkler options The new protection guidelines greatly reduce the number of in rack sprinklers needed maximize their vertical spacing and reduce installation costs by more than 40 percent when compared to today s in rack sprinkler design guidelines The guide lines were unveiled publicly in FM Global Property Loss Prevention Data Sheet 8 9 Storage of Class 1 2 3 4 and Plastic Commodities 14 REASON ISSUE 2 2015

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