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AWWA C502-18 Dry-Barrel Fire Hydrants, 2018
- Foreword [Go to Page]
- I. Introduction. [Go to Page]
- I.A. Background. This 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 [Go to Page]
- I.B. History. The 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, [Go to Page]
- I.C. Acceptance. In 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
- II. Special Issues. [Go to Page]
- II.A. Ownership, Use, and Maintenance. A fire hydrant is usually a unit of a water utility’s 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 [Go to Page]
- II.B. Advisory Information on Product Application. Hydrants 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. Chlorine and Chloramine Degradation of Elastomers. The 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. Use of This Standard. It 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. [Go to Page]
- III.A. Purchaser Options and Alternatives. The following items should be provided by the purchaser: [Go to Page]
- III.B. Optional Information (if required by purchaser).
- III.C. Modification to Standard. Any modification of the provisions, definitions, or terminology in this standard must be provided by the purchaser.
- IV. Major Revisions. Major changes made to the standard in this revision include the following:
- V. Comments. If 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
- AWWA Standard
- SECTION 1: GENERAL
- Sec. 1.1 Scope
- Sec. 1.2 Purpose
- Sec. 1.3 Application
- SECTION 2: REFERENCES
- SECTION 3: DEFINITIONS
- SECTION 4: REQUIREMENTS
- Sec. 4.1 Permeation
- Sec. 4.3 Data to Be Provided by the Manufacturer
- Sec. 4.4 Materials
- Sec. 4.5 General Design [Go to Page]
- Table 2 Hydrant component parts
- Sec. 4.6 Detailed Design [Go to Page]
- Table 3 Minimum wall thicknesses
- Sec. 4.7 Hydrant Inlet
- Sec. 4.8 Valves
- Sec. 4.9 Packing Glands and Packing-Gland Bolts
- Sec. 4.10 Seals
- Sec. 4.11 Bolts and Nuts
- Sec. 4.12 Workmanship
- Sec. 4.13 Painting
- Sec. 5.2 Prototype Testing
- Sec. 5.3 Inspection and Nonconformance
- Sec. 6.2 Shipment
- Sec. 6.3 Affidavit of Compliance [Go to Page]
- APPENDIX A [Go to Page]
- Characteristics of National Standard Fire-Hose Coupling Screw Thread
- APPENDIX B [Go to Page]
- Uniform Color Scheme for Fire Hydrants [Go to Page]
