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AWWA C151/A21.51-23 Ductile-Iron Pipe, Centrifugally Cast, 2023
- Foreword [Go to Page]
- I. Introduction. [Go to Page]
- I.A. Background. The purpose of this standard is to provide information to specifiers and users of ductile-iron pipe on the minimum manufacturing requirements of this pipe. This standard includes requirements for laying lengths, dimensional tolerances, ma [Go to Page]
- I.B. History. American National Standards Committee A21 on Cast-Iron Pipe and Fittings was organized in 1926 under the sponsorship of the American Gas Association (AGA), the American Society for Testing and Materials (ASTM), AWWA, and the New England Wate [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. Advisory Information on Product Application. Unless otherwise provided by the purchaser, pipe and accessories shall comply with this standard. Pipe and accessories not complying with this standard shall be replaced by the supplier at the agreed poin [Go to Page]
- II.B. 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 covered by the purchaser: [Go to Page]
- III.B. Modification to Standard. Any modification to the provisions, definitions, or terminology in this standard must be provided by the purchaser.
- IV. Major Revisions. Major revisions made to the standard in this edition include the following:
- V. Comments. If you have any comments or questions about this standard, please call AWWA Engineering and Technical Services at 303.794.7711; write to the department at 6666 West Quincy Avenue, Denver, CO 80235-3098; or email at standards@awwa.org.
- 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 Materials
- Sec. 4.2 Permeation
- Sec. 4.3 General Requirements
- Sec. 4.4 Coatings and Linings
- Sec. 4.5 Tolerances or Permitted Variations [Go to Page]
- Table 1 Maximum minus pipe tolerance
- Sec. 4.6 Pipe Wall Thickness
- Sec. 4.7 Marking Pipe
- SECTION 5: VERIFICATION
- Sec. 5.2 Test Procedures
- Figure 1 Tensile-test specimen
- Figure 2 Impact-test specimen
- Sec. 5.3 Additional Control Tests by the Manufacturer
- Sec. 5.4 Foundry Records
- Sec. 5.5 Additional Tests Required by the Purchaser
- Sec. 5.6 Defective Specimens and Retests
- Sec. 5.7 Basis for Rejection
- SECTION 6: DELIVERY
- Sec. 6.1 Notice of Nonconformance
- Sec. 6.2 Affidavit of Compliance [Go to Page]
- Table 2 Standard dimensions of push-on–joint ductile-iron pipe* and mechanical-joint ductile-iron pipe* (continued)
- Figure 3 Standard laying conditions [Go to Page]
- APPENDIX A [Go to Page]
- Pipe Thickness Required for Different Tap Sizes [Go to Page]
- Table A.2 Pipe thicknesses required for different tap sizes per ANSI/AWWA C800* for standard corporation stop threads with two, three, and four full threads†‡^
- Table A.2 Pipe thicknesses required for different tap sizes as per ANSI/AWWA C800 for standard corporation stop threads with two, three, and four full threads*†^ (continued) [Go to Page]
