AWWA COMMENT PERIOD ON AWWA C153/A21.53, Ductile-Iron Compact Fittings

AWWA COMMENT PERIOD ON AWWA C153/A21.53, Ductile-Iron Compact Fittings
August 15, 2025

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 September 29, 2025.

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 Therefore, this copy is not suitable for continued utilization and is intended only for comment purposes.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 3-in. through 64-in. (80-mm through 1,600-mm) * ductile-iron compact fittings to be used with ductile-iron pipe or pipe made of other materials with similar outside diameters for conveying potable water, wastewater, and reclaimed water. Minimum working pressures by size range are as follows: 3 in. through 24 in.  (80 mm through 600 mm):  350 psi (2,413 kPa); 30 in.  through 48 in.  (750 mm through1,200 mm): 250 psi (1,724 kPa); and 54 in. through 64 in. (1,400 mm through 1,600 mm): 150 psi (1,034 kPa). Fittings are adequate for the rated working pressure plus a surge allowance of 100 psi or a surge allowance of half the rated working pressure, whichever is less.

Fittings with mechanical joints are listed in this standard for the 3-in.  through 64-in.  (80-mm through 1,600-mm) sizes. The standard also may be used for fittings of these sizes with push-on joints or other joints as agreed on at the time of purchase.

Fittings with push-on joints and flanged joints are listed in this standard for the 54-in.  through 64-in. (1,400-mm through 1,600-mm) sizes. Fittings with flange joints are not discussed in this standard for sizes 3 in. through 48 in. (80 mm through 1,200 mm) because of the importance of standardized center-to-flange face dimensions for these sizes already described in ANSI†/AWWA C110/A21.10.

Fittings with plain ends are listed for bends and reducers of the 3-in.  through 64-in.  (80-mm through 1,600-mm) size range and for tees and crosses of the 54-in. through 64-in. (1,400-mm through 1,600-mm) size range.

MAJOR REVISIONS
The major revisions in this edition of ANSI/AWWA C153/A21.53 are as follows:

1. Add 1/6, 1/12, and 1/64 bend fittings in Table 1.
2. Add 60” fittings in Table 3.
3. Add 60” fittings and revise dimensions throughout Table 4.
4. Add 54”, 60” and 64” fittings in Table 5.