Transcription of Pocket Guide to Automatic Sprinklers
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Sixth EditionPocket Guide to Automatic SprinklersPocket Guide to Automatic Sprinklers *A Guide to Automatic sprinkler systems to assist the fire service in training for and fighting fire in sprinklered facilitiesSixth Edition* This Guide is not intended to be used to design sprinkler of ContentsIntroduction ..5 SprinklersOperation .. 6 Types of systems ..6 Alarms ..9 Types of Sprinklers ..9 Other types ..14 Discharge coefficients ..17 Temperature ratings ..18 sprinkler sensitivity ..20 Control valves ..22 Where Sprinklers Are Needed ..25 Commodity Classification ..27 Common Causes of sprinkler System Failure ..29 sprinkler Piping and Spacing ..31 Water supplies for Automatic Sprinklers (Fig . 1) ..32 33 This Pocket Guide is made available for informational purposes only in support of the insurance relationship between FM Global and its clients. This information does not change or supplement policy terms or conditions.
Upright sprinklers are designed for installation on the top of sprinkler piping, with the deflector positioned above the orifice . This is the most common orientation for control-mode sprinklers . Pendent sprinklers are installed on the underside of piping, with the deflector located below the orifice . This orientation
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