AWWA COMMENT PERIOD ON AWWA C207 – Steel Pipe Flanges for Waterworks Service, Sizes 4 In. Through 144 In. (100 mm Through 3,600 mm)

AWWA COMMENT PERIOD ON AWWA C207 – Steel Pipe Flanges for Waterworks Service, Sizes 4 In. Through 144 In. (100 mm Through 3,600 mm)
May 2, 2023

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. 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 17, 2023.

Send comments to:
Liz Ralph
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 Therefore, this copy is not suitable for continued utilization and is intended only for comment purposes.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 ring-type slip-on flanges and blind flanges. The flange pressure limits and the tables that describe them are
1. Ring-type, slip-on flanges (see Tables 2, 3, and 4).
2. Blind flanges (see Table 5).

MAJOR REVISIONS
Major revisions made to the standard in this edition include the following:
1. Updated Sec. I.C. Acceptance in the Foreword with the latest Standards Council language reflecting the addition of reference to NSF/ANSI/CAN 372 and NSF/ANSI/CAN 600.
2. Added “gasket ID” to purchaser options in III.A.
3. The terms “reclaimed water” and “wastewater” were added to Section 3, Definitions.
4. Updated Sec. 4.1.1 Materials and Sec. 4.1.2 Permeation with the latest Standards Council boilerplate language.
5. Revised wording to improve clarity pertaining to gasket assembly stress value in Sec. 4.1.5.
6. Corrected wording in note † at the bottom of Table 2 pertaining to dimension in common with Class 125 cast iron flanges.
7. Corrected wording in note * at the bottom of Table 4 and note ‡ and at the bottom of Table 5 pertaining to other flange types that are similar to Class F flanges.
8. Bolt diameter for 22 in. flange in Table 4 corrected to 1.50 in.
9. In Section 6.1 marking requirements updated.
10. Added two new references to Appendix A Bibliography.