This standard describes post-type, dry-barrel fire hydrants with compression shutoff (opening against or with the pressure) or gate shutoff for use in fire protection service in all climates, including those where freezing occurs. This standard can be referenced in specifications for purchasing and receiving dry-barrel fire hydrants for fire protection service and can be used as a guide for evaluating materials and designing, testing, and inspecting dry-barrel fire hydrants. The stipulations of this standard apply when this document has been referenced and then only to dry-barrel fire hydrants for water supply service.<\/p>\n
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| 7<\/td>\n | Foreword I.\tIntroduction. I.A.\tBackground.\u2003This standard pertains to dry-barrel fire hydrants that are intended for use in water supply systems in all climates, including those where freezing temperatures occur. Wet-barrel fire hydrants, which are intended for use only in areas wh I.B.\tHistory.\u2003The first edition of this standard was approved on June 24, 1913, as Standard Specifications for Hydrants and Valves. Subsequent revisions to ANSI\/AWWA C502 were approved by the AWWA Board of Directors in 1916, 1937, 1938, 1940, 1943, 1953, 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 it is operated by members of the fire department rather than by wat <\/td>\n<\/tr>\n | ||||||
| 9<\/td>\n | II.B.\tAdvisory Information on Product Application.\u2003Hydrants produced according to ANSI\/AWWA C502 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.\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 <\/td>\n<\/tr>\n | ||||||
| 10<\/td>\n | 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 | ||||||
| 11<\/td>\n | III.B.\tOptional Information (if required by purchaser). <\/td>\n<\/tr>\n | ||||||
| 12<\/td>\n | III.C.\tModification to Standard.\u2003Any modification of 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: V.\tComments.\u2003If you have any comments or questions about this standard, please contact AWWA Engineering and Technical Services at 303.794.7711, FAX 303.795.7603, write to the department at 6666 West Quincy Avenue, Denver, CO 80235-3098, or email at standa <\/td>\n<\/tr>\n | ||||||
| 13<\/td>\n | AWWA Standard SECTION 1:\u2002GENERAL Sec.\u20021.1\tScope Sec.\u20021.2\tPurpose Sec.\u20021.3\tApplication <\/td>\n<\/tr>\n | ||||||
| 14<\/td>\n | SECTION 2:\u2002REFERENCES <\/td>\n<\/tr>\n | ||||||
| 16<\/td>\n | SECTION 3:\u2002DEFINITIONS <\/td>\n<\/tr>\n | ||||||
| 17<\/td>\n | SECTION 4:\u2002REQUIREMENTS Sec.\u20024.1\tPermeation Sec.\u20024.3\tData to Be Provided by the Manufacturer <\/td>\n<\/tr>\n | ||||||
| 18<\/td>\n | Sec.\u20024.4\tMaterials <\/td>\n<\/tr>\n | ||||||
| 20<\/td>\n | Sec.\u20024.5\tGeneral Design Table 2\tHydrant component parts <\/td>\n<\/tr>\n | ||||||
| 21<\/td>\n | Sec.\u20024.6\tDetailed Design <\/td>\n<\/tr>\n | ||||||
| 22<\/td>\n | Table 3\tMinimum wall thicknesses <\/td>\n<\/tr>\n | ||||||
| 24<\/td>\n | Sec.\u20024.7\tHydrant Inlet <\/td>\n<\/tr>\n | ||||||
| 25<\/td>\n | Sec.\u20024.8\tValves <\/td>\n<\/tr>\n | ||||||
| 26<\/td>\n | Sec.\u20024.9\tPacking Glands and Packing-Gland Bolts Sec.\u20024.10\tSeals <\/td>\n<\/tr>\n | ||||||
| 27<\/td>\n | Sec.\u20024.11\tBolts and Nuts Sec.\u20024.12\tWorkmanship <\/td>\n<\/tr>\n | ||||||
| 28<\/td>\n | Sec.\u20024.13\tPainting <\/td>\n<\/tr>\n | ||||||
| 29<\/td>\n | Sec.\u20025.2\tPrototype Testing <\/td>\n<\/tr>\n | ||||||
| 30<\/td>\n | Sec.\u20025.3\tInspection and Nonconformance <\/td>\n<\/tr>\n | ||||||
| 31<\/td>\n | Sec.\u20026.2\tShipment Sec.\u20026.3\tAffidavit of Compliance <\/td>\n<\/tr>\n | ||||||
| 33<\/td>\n | APPENDIX A Characteristics of National Standard Fire-Hose Coupling Screw Thread <\/td>\n<\/tr>\n | ||||||
| 37<\/td>\n | APPENDIX B Uniform Color Scheme for Fire Hydrants <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" AWWA C502-18 Dry-Barrel Fire Hydrants<\/b><\/p>\n |