A civil engineering company increasingly uses trenchless installation technology. This special technology allows pipes, electrical cables etc to be installed without having to dig trenches. One company specializing in this technology works with the horizontal directional drilling (HDD) method.
A horizontal flushing bore is made in the ground which can be controlled using modern detection technology. Flushing nozzles are attached to the drill head. Bentonite is then fed into the hole through the nozzles. The Bentonite flushes the bore hole to stabilize the bore channel and cool the drill head.
The horizontal flushing bore rig is installed on the company's operation vehicle which also accommodates a Börger Rotary Lobe Pump for pumping the bentonite from the tank to the drill head. The plant engineer emphasized the need for a pump with a long service life, high resistance to wear and one that is very user-friendly in the event of maintenance. The plant engineering company and their customer are highly satisfied with the Börger Rotary Lobe Pump. They have since installed over 100 Boerger Rotary Lobe Pumps in horizontal flushing bore rigs.
|Börger||Rotary Lobe Pump|
|Rated capacity||25 m³/h (110 usgpm/h)|
|Pressure||4 bar (58 psi)|