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ANSI/CAN/UL/ULC 1091:2022
Butterfly Valves for Fire-Protection Service - Published Date: April 20, 2022
1.1 These requirements cover butterfly valves intended for use in piping systems supplying water for fire-protection service. 1.2 The valves covered by these requirements are intended for installation and use in accordance with the Standards for: a) Low, Medium and High Expansion Foam, NFPA 11; b) Installation of Sprinkler Systems, NFPA 13; c) Installation of Standpipe and Hose Systems, NFPA 14; d) Water Spray Fixed Systems for Fire Protection, NFPA 15; e) Foam-Water Sprinkler and Foam-Water Spray Systems, NFPA 16; f) Installation of Stationary Pumps for Fire Protection, NFPA 20; g) Water Tanks for Private Fire Protection, NFPA 22; and h) Installation of Private Fire Service Mains and Their Appurtenances, NFPA 24.
Underwriters Laboratories [ul]