Feasibility of Pressure Balanced Joint using Single wire GMAW and Tandem GMAW | Original Article

ABSTRACT:

Currently, plastic lined pipes are used for water injection lines. The pipes are welded using the “weld link” method and are installed by the reeling method. However, for deep water, reeling method is not efficient and if using the “weld link” method for pipe line techniques the production time and installation cost will dramatically increase because there is a joint every 25m  - 50m.The   PBJ to allow shorter pipe sections to be joined at a faster rate and to reduce the installation cost. The results also revealed that both Single wire GMAW and Tandem GMAW can be used to weld the steel pipe incorporating the PBJ with Aero gel blanket of 2.5mm and 5.5mm nominal thickness without deforming the PBJ under the conditions used in the trials