Rothenberger ROWELD E Series - Page 76

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3.4.10 Increase the pressure until the required bead appears. Fasten the lock device to keep
the joint cool down by itself. Finally open clamps and take out the jointed pipe.
3.4.11 Check visually the joint. The joint should be smooth symmetry, and the bottom of
groove between the beads should not be lower than the pipe surface. The misalignment of
two beads should not exceed 10% of the wall thickness, or the welding is bad.
Common welding Sketch
Long pipe welding
Short flange&Long pipe
Short flange&Pipe fitting
Socket pipe&Long pipe
Elbow pipe&Long pipe