NFPA 22 Standard for WaterTanksfor PrivateFireProtection 2023 NFPA
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22-1 Copyright @ 2022 National Fire Protection Axsociation®. All Rights Reserved. NFPA° 22 Standard for Water Tanks for Private Fire Protection 2023 Edition Technical Cmmitte on Water Tanks. It was issued by the Standards Council on Aμril 14 2022 with This erdition f NFPA 2 Sard fr War Tks for PrieFi Prtetin was meared lythe an effective date of May 4 2022 and sumersedes all μrevimus edlitions. This edition of NFPA 22 was approved as an American National Standard on May 4 2022. Origin and Development of NFPA 22 In 1909 the NFPA Coemmittee on Gravity Tanks develomed the Standard on Grity Tarks. Amencments were considered in 1912 and 1913 aad the stanlad was adoted in 1914 Revised o amenied ediis wee doted in 1915 1917 1918 1919 1922 1926 1928 1930 1931 1933 19 1941 1949 and 1950. The name of the mittee was changed to the Committe on Water Tanks and is emmdatis euled in change adted in 1957 1958 1962 195 1967 1970 1971 197 1976 1978 1981 and 1987. Tanks other than gravity tanks which at that time included concrese reservoirs and alve pits were first covered in 1913 mresure tankx (formerly covered by Standands fr Srinler Sstxs) were s s s e ei amenrled to reflect the expancled se of the standard. The 199S edition μrovided new environmentally friendly requirements for tank-coating systems. T new chamers wereincluied tocoverthe desigun erectin of bolted steel tanks and concrete tanks Iformation e fiberglass tanks also wasincluded These changes along with other editorial changes reflected the current information for water storage tank design. The 196 edition of NFPA 22 consolidated tank care and maintenance information within a single chapter: Further revisics addressed the corosicn resistance of certain tank onents acces into tanks the moeitoring od interal conditions and the structural stresses to which tanks are suljected. e s s ag x sy made. The 1998 edlition further addressed environmental ssues All inspection testing and maintenance requirements were removed and added to the approriate chater od the 1998 edition of NFPA 25 Sfarfarf for the Imsjmtion Testing ond Mazntenence af Wiater-Based Jire Prnterfim Systems. The 2003 edition was changed to coom to the Mel ef Sryle f NPA Tekrical Goitte Dociowends 2000 edlition. Referenced publications were uprdated. Chater 1Accetance test requiremnts wereconsolidated into a ew Chater 17 Accetce The 200 editinrecogized the usef berglareinfced lastic (FRP) tank th aw Test Requirements to improve userdriendliness. The 2013 edition ardded sizingrequirements for break tanks in Chater 4 and sizing proceures requirements fr antivotex mlates were revised Tae 54 was upated to align with cunt insy for pressure tanks in the Chapter 7 annex material. The term suction fank was defined and the standards. requirements to AWWA 100 have heen remowed and reference to AWWA 100 has bee made; The 2018 erlition suhstantially modified Chapterx 5 and 6. In Chamter 5 all duplicate requirements smecific to fire μrotection remain in Chapter 5. In Chamter 5 all duplicate specific to fire protection emain i Chmter.Requirementsforcheck vesin the discharge ipe requirements to AWVA 103 have heen removed and reference to AWVA D103 made; requirements NFPA an Ntial Fie Proteti Ajtin are registere taearks f the Ntial Fice Proteio Aiatin Quiny Mahe 0169.
22-2 WATERTANES FOR PRIVATE FIRE PROTECTION p aa se pe e pg q t os o impairment μrocerures of NFPA 25 to he followed. Chater 16 has added new criteria for electric immersion heaters and the lowest oneday mean temerature map has been removerd in lieu of using calculations to determine tank heating needs. The 2023 edition wasrevised to remove redunlant sections to mrovide clarity Sections related to extermal loads such as wind sow and live load requirements have heenudated to recognize other standards and to relace outlated dsig apprachesTank sizing requirements havebeen udated to esure that um utionresure is cnsiere when esiging water taks Wter tank couctioneatures havebeen uated in line whwly refeenced stanards and ther alicale standars have been recognized by the stanard Additial valve requirements have heen incormorated to imrove mainstainability Filline and suction pige separation distances have been μrovided to revent cavitation in the fire pumβ Erlitorial corrections such as unit conversions were mae where applicable. References have been upcated to the latest applicalble corles and standards 2023Edtion
NFPA 22 2023 私人消防水箱标准 Standard for Water Tanks for Private Fire Protection.pdf
