AWWA C 221:2018

This standard describes fabricated steel mechanical slip-type expansion joints having packing chambers for use on pipe with plain, flanged, grooved, or shouldered ends in nominal pipe sizes 3 in. (75 mm)* and larger.
This standard can be referenced in documents for purchasing and receiving fabricated steel mechanical slip-type expansion joints and can be used as a guide for inspection and testing. This standard or sections of this standard apply when this document has been referenced and then only to fabricated steel mechanical slip-type expansion joints.