AWWA COMMENT PERIOD ON AWWA C227, Bolted, Split-Sleeve Couplings

AWWA COMMENT PERIOD ON AWWA C227, Bolted, Split-Sleeve Couplings

November 6, 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 December 21, 2026.

Send comments to: Liz Ralph, LRalph@awwa.org 303.347.6177 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 Therefore, this copy is not suitable for continued utilization and is intended only for comment purposes.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 bolted, split-sleeve couplings (couplings) used to join pipe of similar outside diameter. Couplings may be manufactured from carbon steel or stainless steel and are intended for use in systems conveying potable water, wastewater, reclaimed water, or air used in water treatment. This standard covers nominal coupling sizes 3⁄4 in. (20 mm) and larger.

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

1. A new Sec. 4.2.1.1 Certification was added.

2. In Sec. 4.2.7 Special gaskets for electrical insulation, the requirement for boot thickness was removed because there is no technical reason to limit the thickness to 1/8 in.

3. In Sec. 4.3.5 Fasteners, the pressure for a watertight seal was revised to 1.5 times the rated pressure.

4. The reference to ANSI/AWWA C550 Protective Interior Coatings for Valves and Hydrants was deleted from Sec. 4.5.2 Optional coatings for carbon steel couplings, since it is not an appropriate coating and lining for couplings.

5. Sec. 4.6.1 General was revised for clarity.

6. In Sec. 4.6.4.1 General, the sentences on unbalanced forces were deleted.

7. Sec. 4.6.4.2 Procedure was deleted since it was redundant with other sections.

8. Sec. 5.1.1.1.1 Optional non-destructive examination was deleted.

9. Sec. 5.2.3 Purchaser’s proof test was revised and a requirement added for the coupling manufacturer to provide the testing.

10. In Sec. 6.2 Packing and Shipping a requirement was added for packaging of fasteners and gaskets.