UL Standard for Safety Dry Pipe and Deluge Valves for Fire-Protection Service (Seventh Edition; Reprint with Revisions Through and Including May 18@ 2017)
These requirements cover valve equipment intended for installation in piping systems to supply water automatically to dry pipe@ deluge@ and preaction sprinkler systems for fire-protection service. Valves covered by these requirements may be a differential type@ latched-clapper type@ low-differential type@ or a combination of these types. The valves covered by these requirements are intended for installation and use in accordance with the following standards: a) Standard for Low-@ Medium-@ and High-Expansion Foam@ NFPA 11. b) Standard for the Installation of Sprinkler Systems@ NFPA 13. c) Standard for the Installation of Standpipe and Hose Systems@ NFPA 14. d) Standard for Water Spray Fixed Systems for Fire Protection@ NFPA 15 e) Standard for the Installation of Foam-Water Sprinkler and Foam-Water Spray Systems@ NFPA 16