AWWA ACE92219

Restrained joint pipelines frequently consist of factory-prepared restraining joints of various designs. A common feature of factory-prepared restrained joints is a ring or bead welded to the spigot end of the pipe for the purpose of providing a positive integral thrust restraint. They are made to suit a laying schedule and the pipe is fabricated to various lengths to accommodate the fittings. When problems arise in the field and the lengths must be changed from those shipped from the factory, the factory-welded spigot end must be cut off and a different jointing system must be used. Frequently, the reason for cutting is for the installation of a mechanical joint fitting. Several solutions are given for this type of problem.