UL 262:2018-09 Gate Valves for Fire-Protection Service

UL 262:2018-09 Gate Valves for Fire-Protection Service. 1.1 These requirements cover gate valves intended for installation in piping systems supplying water for fire-protection service. Gate valves covered by these requirements are of the outside-screw-and-yoke type or of the nonrising stem type, the latter for installation either above or below ground. 1.2 The gate valves covered by these requirements are intended for installation and use in accordance with the Standards for: a) Low 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) Deluge Foam-Water Sprinkler and Foam-Water Spray Systems, NFPA 16; f) Installation of Centrifugal Fire Pumps, NFPA 20; g) Water Tanks for Private Fire Protection, NFPA 22; and h) Installation of Private Fire Service Mains and Their Appurtenances, NFPA 24. 2 Components 2.1 Except as indicated in 2.2, a component of a product covered by this standard shall comply with the requirements for that component. 2.2 A component is not required to comply with a specific requirement that: a) Involves a feature or characteristic not required in the application of the component in the product covered by this standard, or b) Is superseded by a requirement in this standard. 2.3 A component shall be used in accordance with its rating established for the intended conditions of use. 2.4 Specific components are incomplete in construction features or restricted in performance capabilities. Such components are intended for use only under limited conditions, such as certain temperatures not exceeding specified limits, and shall be used only under those specific conditions. 3 Units of Measurement 3.1 Values stated without parentheses are the requirement. Values in parentheses are explanatory or approximate information. 4 Undated References 4.1 Any undated reference to a code or standard appearing in the requirements of this standard shall be interpreted as referring to the latest edition of that code or standard.UL 262 pdf download.