AWWA COMMENT PERIOD ON AWWA C517, Resilient-Seated Cast-Iron Eccentric Plug Valves

AWWA COMMENT PERIOD ON AWWA C517, Resilient-Seated Cast-Iron Eccentric Plug Valves

May 22, 2026

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 45-day public comment period for AWWA and ANSI. An electronic public review copy of the proposed standard can be obtained for review during the comment period by emailing ETS Support (ETSsupport@awwa.org). 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 Comment Period closes on July 6, 2026.

Send comments to:

Jason Hrdlicka, JHrdlicka@awwa.org

303.347.6266 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 Therefore, this copy is not suitable for continued utilization and is intended only for comment purposes.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 describes resilient-seated cast-iron eccentric plug valves, 3 in. (75 mm) through 72 in. (1,800 mm) in diameter, with flanged, grooved, or mechanical-joint ends, for water, wastewater, and reclaimed water systems having a pH range from 6 to 12 and a temperature range from 33°F to 125°F (0.6°C to 52°C). The minimum design pressure shall be 175 psig (1,208 kPa) for 3-in. through 12-in. (75-mm through 300-mm) sizes and 150 psig (1,034 kPa) for 14-in. through 72-in. (350-mm through 1,800-mm) sizes and a maximum full-open fluid velocity of 8 ft/s (2.4 m/s) based on nominal valve size.

MAJOR REVISIONS Major changes made to the standard in this revision include the following:

1. Added advisory information on finite element analysis in Foreword Sec. II.

2. Added several definitions related to actuators and torque in Sec. 3.

3. Revised actuator requirements in Sec. 4.4.9.

4. Revised cycle test requirements in Sec. 5.2.2.2.