The plowing technique is specially suitable for sparsely populated rural areas where long pipelines with few connections are required. Up to now only pressure lines are installed with this technique. Due to the plow design and ist universally adjustable extensions even small, flat waters can be crossed and pipes can easily be installed in enbankments. Applying the plowing technique to install pipes below ground water level has proved to be very economic and environmentally friendly. The terrain should not be fortified and should be free of larger obstacles. Prior to the installation the exact postion of crossing lines and the prevailing soil conditions have to be investigated.

Pipe and cable plow
An all-terrain traction unit (Unimog or tracked vehicle) pulls the plow by aid of a cable winch. Bumpy terrains are levelled by universally adjustable extensions and hydraulically adjustable rubber tyres. At the starting point of the bore path the plow lamella is placed in the starting pit at a level with the installation depth.

Being pulled by the rope, the plow lamella displaces the soil in the pipeline zone, settling the ditch bottom with its own high weight. That way a hollow space for installing the pipe is created. By means of an automatic sanding cart attached to the plow, the hollow space can be filled with sand. Then the pipe is installed on the bottom of the ditch at the desired depth free of any mechanical stress. The pipe and cable plow installs PE and PE-X pipes up to OD 255 mm.

Rocket plow
When using the rocket plow, the installation box is exchanged for a displacement and extending piece. The rocket plow installs PE and PE-X pipes up to OD 335 and ductile cast riron pipes up to ND 250. The pipe is attached directly to the displacement and extending piece and pulled into the hollow space the piece has created. Additional protection pipes, cables and trace bands can be pulled in simultaneously. A bentonite mix can be applied to fill the annulus around the pipe and to minimize the friction. Monitoring the pulling forces affecting the pipe string is possible as well.