The purpose of this standard is to provide purchasers, manufacturers, and suppliers with the minimum requirements for wet-barrel fire hydrants for fireprotection service, including materials, design, inspection, testing, marking, and shipping requirements.<\/p>\n
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| 7<\/td>\n | Foreword I.\tIntroduction. I.A.\tBackground.\u2003This standard pertains to wet-barrel fire hydrants that are intended for use in water-supply systems in areas where the climate is mild and freezing temperatures do not occur. ANSI\/AWWA C502, Dry-Barrel Fire Hydrants, pertains to dry-barr I.B.\tHistory.\u2003Previous editions of ANSI\/AWWA C503 were approved by the AWWA Board of Directors in January 1958 (tentative), July 1959, January 1970, June 1975, February 1982, June 1988, June 1997, June 2005, and June 8, 2014. This edition of C503 was appr I.C.\tAcceptance.\u2003In May 1985, the US Environmental Protection Agency (USEPA) entered into a cooperative agreement with a consortium led by NSF International (NSF) to develop voluntary third-party consensus standards and a certification program for direct <\/td>\n<\/tr>\n | ||||||
| 8<\/td>\n | II.\tSpecial Issues. II.A.\tOwnership, Use, and Maintenance.\u2003A fire hydrant is usually a unit of a water utility\u2019s property that is provided for public fire-protection service. However, during fire emergencies, a hydrant is operated by members of a fire department rather than <\/td>\n<\/tr>\n | ||||||
| 9<\/td>\n | II.B.\tAdvisory Information on Product Application.\u2003Hydrants produced according to ANSI\/AWWA C503 are designed to be operated by one person using a 15-in. (380-mm) wrench. The use of a longer wrench or an indefinite extender operated by two or more persons II.C.\tGate Valve.\u2003Installing a gate valve on the branch connection of hydrants is considered good water utility practice. This practice is particularly important for wet-barrel hydrants. Dry-barrel hydrants manufactured according to ANSI\/AWWA C502 are des <\/td>\n<\/tr>\n | ||||||
| 10<\/td>\n | II.D.\tChlorine and Chloramine Degradation of Elastomers.\u2003The selection of materials is critical for water service and distribution piping in locations where there is a possibility that elastomers will be in contact with chlorine or chloramines. Documented III.\tUse of This Standard.\u2003It is the responsibility of the user of an AWWA standard to determine that the products described in that standard are suitable for use in the particular application being considered. III.A.\tPurchaser Options and Alternatives.\u2003The following items should be provided by the purchaser: <\/td>\n<\/tr>\n | ||||||
| 12<\/td>\n | III.B.\tModification to Standard.\u2003Any modification to the provisions, definitions, or terminology in this standard must be provided by the purchaser. IV.\tMajor Revisions.\u2003Major changes made to the standard in this revision include the following: <\/td>\n<\/tr>\n | ||||||
| 13<\/td>\n | V.\tComments.\u2003If you have any comments or questions about this standard, please call the AWWA Engineering and Technical Services at 303.794.7711, FAX at 303.795.7603, write to the department at 6666 West Quincy Avenue, Denver, CO 80235-3098, or email at st <\/td>\n<\/tr>\n | ||||||
| 15<\/td>\n | AWWA Standard SECTION 1:\u2002GENERAL Sec.\u20021.1\tScope Sec.\u20021.2\tPurpose <\/td>\n<\/tr>\n | ||||||
| 16<\/td>\n | Sec.\u20021.3\tApplication SECTION 2:\u2002REFERENCES <\/td>\n<\/tr>\n | ||||||
| 18<\/td>\n | SECTION 3:\u2002DEFINITIONS <\/td>\n<\/tr>\n | ||||||
| 19<\/td>\n | SECTION 4:\u2002REQUIREMENTS Sec.\u20024.1\tPermeation <\/td>\n<\/tr>\n | ||||||
| 20<\/td>\n | Sec.\u20024.2\tData to Be Provided by the Purchaser Sec.\u20024.3\tDrawings or Data to Be Provided by the Manufacturer Sec.\u20024.4\tMaterials <\/td>\n<\/tr>\n | ||||||
| 22<\/td>\n | Table 1\tCopper alloy standards <\/td>\n<\/tr>\n | ||||||
| 24<\/td>\n | Sec.\u20024.5\tGeneral Design Sec.\u20024.6\tDetailed Design Table 2\tMinimum wall thickness for sections of wet-barrel hydrants <\/td>\n<\/tr>\n | ||||||
| 30<\/td>\n | Sec.\u20024.8\tWorkmanship <\/td>\n<\/tr>\n | ||||||
| 31<\/td>\n | SECTION5:\u2002VERIFICATION Sec.\u20025.1\tFire-Hydrant Component Tests Sec.\u20025.2\tProduction Tests <\/td>\n<\/tr>\n | ||||||
| 32<\/td>\n | SECTION6:\u2002DELIVERY Sec.\u20026.1\tMarking Sec.\u20026.2\tShipment <\/td>\n<\/tr>\n | ||||||
| 33<\/td>\n | APPENDIX A Characteristics of National Standard Fire-Hose Coupling Screw Threads <\/td>\n<\/tr>\n | ||||||
| 37<\/td>\n | APPENDIX B <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" AWWA C503-18 Wet-Barrel Fire Hydrants<\/b><\/p>\n |