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 ...

Unlike a water spray system that is designed strictly as exposure protection, the water mist system is a fire suppression system. NFPA 15 Standard for Water Spray Fixed Systems for Fire Protection ...

Rochester’s water main system, known as the Holly system, is more than 150 years old and remains one of only two such systems in the United States. The Holly system, named after inventor Birdsill ...

NFPA 25 addresses water-based fire protection systems such as sprinkler, standpipe and hose, fixed water spray, private fire hydrants, water mist, and foam water systems. The standard does not ...