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Tube, Pipe & Fittings

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Soldered Joints:
Reaming

Ream all cut tube ends to the full inside diameter of the tube to remove the small burr created by the cutting operation. If this rough, inside edge is not removed by reaming, erosion-corrosion may occur due to local turbulence and increased local flow velocity in the tube. A properly reamed piece of tube provides a smooth surface for better flow.

Remove any burrs on the outside of the tube ends, created by the cutting operation, to ensure proper entrance of the tube into the fitting cup.

Tools used to ream tube ends include the reaming blade on the tube cutter, half-round or round files (Figure 12), a pocket knife (Figure 13), and a suitable deburring tool (Figure 14). With soft tube, care must be taken not to deform the tube end by applying too much pressure.

Soft temper tube, if deformed, can be brought back to roundness with a sizing tool. This tool consists of a plug and sizing ring.

Figure 12. Reaming: File
Figure 13. Reaming: Pocket Knife
Figure 14. Reaming: Deburring Tool
 

Copper Tube Handbook

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