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AWWA C519-25 High-Performance Waterworks Butterfly Valves, 2025
- Foreword [Go to Page]
- V. Comments. If you have any comments or questions about this standard, please call the AWWA Engineering and Technical Services at 303.794.7711; write to the department at 6666 West Quincy Avenue, Denver, CO 80235-3098; or email standards@awwa.org.
- IV. Major Revisions.
- II. Special Issues. [Go to Page]
- II.A. General. The purchaser should carefully evaluate conditions under which a valve is to be operated. The evaluations must include the determination of the hydraulic characteristics of the system in which the valve will be installed and the operation o [Go to Page]
- II.B. Advisory Information on Product Application. This standard does not describe all possible applications or manufacturing technologies. The purchaser should identify special requirements and required deviations from this standard and include appropria
- II.C Valve Discs and Piping Design. The discs of butterfly valves, when in the fully open position, intrude into the adjacent upstream and downstream piping or other adjacent devices. This intrusion can be an issue especially with adjacent pipe interior l
- II.D. Flange Bolt Patterns. The ASME and AWWA flange bolt patterns in sizes 42 in. (1,050 mm) through 60 in. (1,500 mm) are not compatible. Additionally, the ASME B16.47 flanges are generally designed for outside nominal diameter pipe and may not be compa [Go to Page]
- II.E. Permeation. The selection of materials is critical for potable water, wastewater, and reclaimed water service and distribution piping systems in locations where there is the likelihood the valve will be exposed to significant concentrations of pollu
- II.F. Chloramines. 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 specific water treatment disinfection agents. Documented research has sho
- I.A. Background. Butterfly valves are generally used for isolating and/or modulating flow in pipelines carrying liquids and gases. Manufacturers of steel butterfly valves developed tight-closing, polymeric-seated and metal-seated valve options for cooling [Go to Page]
- I.B. History. The need for standardization of high-performance butterfly valves for waterworks service was recognized by AWWA in 2010. [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
- 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 information should be provided 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.
- AWWA Standard
- SECTION 1: GENERAL
- Sec. 1.1 Scope
- Sec. 1.2 Purpose
- Sec. 1.3 Application
- SECTION 2: REFERENCES
- Sec. 2.1 Industry Standards
- Sec. 2.2 Material Specifications
- SECTION 3: DEFINITIONS
- SECTION 4: REQUIREMENTS
- Sec. 4.1 Materials.
- Table 1-A Laying length dimensions: 3–24 in. (75–600 mm), wafer and lugged-wafer body valves [Go to Page]
- Table 1-B Laying length dimensions: 30–60 in. (750–1,500 mm), wafer and lugged-wafer body valves [Go to Page]
- Table 1-C Laying length dimensions: 3–60 in. (75–1,500 mm), flanged valves
- Table 1-D Wafer and lugged-wafer body minimum wall thickness
- Table 1-F Standards for flange drilling patterns, dimensions, and minimum thickness
- Table 2 Actuator application factors (AF)
- Sec. 4.3 Workmanship and Coating
- SECTION 5: VERIFICATION
- Sec. 5.1 Testing by the Manufacturer [Go to Page]
- Table 3 Valve test cycles required
- Sec. 5.2 Notice of Nonconformance
- SECTION 6: DELIVERY
- Sec. 6.1 Marking
- Sec. 6.2 Shipping
- APPENDIX A [Go to Page]
- Installation, Operation, and Maintenance of High-Performance Butterfly Valves [Go to Page]
