AWWA C150 2021

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AWWA C150-21 Thickness Design of Ductile-Iron Pipe

Published By	Publication Date	Number of Pages
AWWA	2021	68

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Description

This standard describes the thickness design of ductile-iron pipe complying with the requirements of ANSI/AWWA C151/A21.51, Ductile-Iron Pipe, Centrifugally Cast. Sec. 4.1 outlines the design procedure, and Sec. 4.2 gives a design example. Sec. 4.3 explains the basis of design. As opposed to using procedures in Sec. 4.1 or Sec. 4.3, the designer may reference Tables 12 through 14 directly. Table 12 lists thicknesses for standard laying conditions and certain depths of cover. Table 13 lists thicknesses for 150 psi-350 psi (1,034 kPa-2,413 kPa) water working pressure. The greater thickness from Table 12 or Table 13 for given trench load or internal pressure should be used. Table 14 lists working pressures and maximum depths of cover for standard laying conditions and standard pressure classes. Table 15 lists special thickness classes of ductile-iron pipe.

PDF Catalog

PDF Pages	PDF Title
9	Foreword I. Introduction. I.A. Background. The purpose of this standard is to provide pipeline designers with a recommended design procedure and associated tabular data necessary to establish the wall thickness(es) required for buried ductile-iron pipe based on the type of pipe em I.B. History. American National Standards Committee A21, Cast-Iron Pipe and Fittings, was organized in 1926 under the sponsorship of the American Gas Association (AGA), ASTM International (ASTM), AWWA, and New England Water Works Association (NEWWA). Betw
10	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
11	II. Special Issues. 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. III.A. Purchaser Options and Alternatives. The following items should be provided by the purchaser: 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, FAX at 303.795.7603, write to the department at 6666 West Quincy Avenue, Denver, CO 80235-3098, or email at standa
13	AWWA Standard SECTION 1: GENERAL Sec. 1.1 Scope
14	Sec. 1.2 Purpose Sec. 1.3 Application SECTION 2: REFERENCES
15	SECTION 3: DEFINITIONS SECTION 4: REQUIREMENTS Sec. 4.1 Procedure for Calculating Thickness
17	Sec. 4.2 Design Example for Calculating Thickness
18	Sec. 4.3 Design Method
20	Sec. 4.4 Explanation of Symbols Used in Design Equations
21	Sec. 4.5 Special Thickness Classes SECTION 5: VERIFICATION SECTION 6: DELIVERY
24	Table 2 Design values for standard laying conditions Table 3 Allowances for casting tolerance
25	Table 4 Reduction factors R for truck load calculations
26	Table 5 Nominal thicknesses for standard pressure classes of ductile-iron pipe