Mhwirth Gmbh

Torsten Kleinen

Hermann Josef Von Wirth

Willi Theo Schmitz

Bernd Wallrafen

A method for separating a pipe comprising a pipe axis, a pipe wall, a pipe interior, an inside pipe circumference, an upper end to be separated, and a lower end, the pipe being anchored in the ground by the lower end, includes providing a cutting assembly comprising at least one water jet nozzle which produces a water jet. The cutting assembly is lowered into the pipe interior through the upper end to be separated down to a separation zone. The pipe is cut with the cutting assembly. The cutting assembly acts progressively against the inside pipe circumference. The water jet, when activated, produces a cut comprising a substantially constant cut width and two complementary conical cut surfaces. The water jet is directed at an angle (&#x3b1;) to a plane which runs perpendicular to the pipe axis so that the cut runs diagonally through the pipe wall.

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Erkelenz, Germany

Torsten Kleinen