The system design and installation are governed by NFPA 15, Water Spray Fixed Systems for Fire Protection. Preaction systems. A preaction system uses closed nozzles. The piping integrity is ...

Installation guidelines such as NFPA 15, Standard for Water Spray Fixed Systems for Fire Protection and NFPA 13, Standard for Installation of Sprinkler Systems, are also applicable. To meet the ...

Installation guidelines such as NFPA 15, Standard for Water Spray Fixed Systems for Fire Protection and NFPA 13, Standard for Installation of Sprinkler Systems, are also applicable. To meet the ...