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UL 2351
New product
UL 2351 Spray Nozzles for Fire-Protection Service
standard by Underwriters Laboratories, 06/04/2004
More info
Full Description
Please note: All interim revisions for this edition available at time of your purchase will be included.Spray Nozzles for Fire-Protection Service
UL 2351
1 Scope
1.1 These requirements cover automatic and non-automatic (open) type water spray nozzles for installation in accordance with the Standard for Installation of Sprinkler Systems, NFPA 13, and the Standard for Water Spray Fixed Systems for Fire Protection, NFPA 15.
1.2 Nozzles are categorized by the discharge coefficient "K" of the orifice, water discharge angle or pattern, type of coating or plating, and other factors that have a bearing on their application. Automatic nozzles are also categorized by operating temperature rating.