AWWA Standard C153/A21.53-00 (Revision of C153/A21.53-94): Standard for Ductile-Iron Compact Fittings for Water Service
This standard covers 3-in. through 64-in. (76-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 water. Minimum working pressures by size range are given. 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 48-in. 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. The major revisions in this edition of ANSI/AWWA C153/A21.53 include the following: the acceptance clause (Sec. I.C) has been revised to approved wording.