ND-54 Tube End Notcher is used for cutting and dimpling the branched tube ends to enable the best possible flow characteristics.
The ND-54 is a natural complement to the T-DRILL tee forming system. It cuts a half-moon shaped coupon from each side of the branch tube to provide for full flow and simultaneously presses in a dimple that rests on the rim of the tee and acts as a depth stop. A second dimple 6 mm higher acts as a point of inspection. The result is an inspectable brazed joint with the best possible flow characteristics.
For branch tube sizes 12, 14–16, 18, 22, 28, 35, 42 and 54 mm and for corresponding inch sizes, too.
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