AWWA's Comment Period on ANSI/AWWA C507 - Ball Valves, 4 In. Through 60 In. (100 mm Through 1,500 mm) 9/1/23 AWWA solicits public comments on all proposed new AWWA Standards, and on all proposed revisions, reaffirmations, or withdrawals of existing AWWA Standards. The referenced standards project is being considered for approval and the publication of this notice begins the 30-day public comment period for AWWA and ANSI. An electronic public review copy of the attachment can be obtained for review during the comment period by emailing ETS Support . Comments must be submitted in writing to the AWWA contact listed below no later than the last day of the comment period specified herein. Such comments shall be specific to the section(s) of the standard under review and include sufficient detail so as to enable the reader to understand the commenter's position, concerns and suggested alternative language, if appropriate. AWWA’s Comment Period closes on 10/16/23. Send comments to: Jason Hrdlicka 303.347.6285 phone The review copy will be edited for publication and may also be revised as appropriate based on any comments received during the public comment period. Therefore, this copy is not suitable for continued utilization and is intended only for comment purposes. Final publication of the standard may take several months. When it is available, a notice will be published in the official notice section of Journal - American Water Works Association . The standard becomes an effective AWWA standard on the first day of the month following such publication in Journal - American Water Works Association . SCOPE This standard covers gray-iron, ductile-iron, and cast-steel flanged-end, low-leakage, shaft- or trunnion-mounted, full-port, and double- and single-seated ball valves. MAJOR REVISIONS The major revisions made to the standard in this edition include the following: 1. Added the 4-inch valve size. 2. Stainless steel body, ball, and mating metal seat construction using ASTM A743 grades CF8 and CF8M was added. 3. Definitions of elastomer and polymer were added to harmonize with other AWWA documents, and the use of the terms plastic and rubber were reduced or eliminated. 4. Resilient seat mating surfaces were aligned with those of AWWA C504-15 and C516-21. 5. The seat leakage tests were clarified. 6. Added the Appendix B, Sample Certified Test Report. 7. Added the Appendix C, Suggested Specification and Data Sheet.