WebThe welding head should be free-moving in its bearings and have a reasonably low inertia, so that good follow-up characteristics, i.e. head movement, can occur when the projections collapse during welding. The machine frame and electrode assembly should be rigid so that flexure, and thus misalignment, is avoided under load. 1pc7VWLvry0o WebCovers the end of a section, attaching around the pipe via a weld, thread, solvent, or solder. Image Credit: Parker Hannifin. Plug. Closes off flow at the end of a section, attaching inside the pipe via a weld, thread, solvent, or solder. Image Credit: Parker Hannifin. Fittings which add or change direction: Elbow Ri3lwoI5ArZ7
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