Horizontal Directional Drilling strain gauge is used for measuring stress, which is subjected HDPE pipe during installation using horizontal directional drilling. HDD technique is used for laying pipelines without disturbing the ground surface. This is accomplished by pushing drilling rod beneath the surface of the ground and then reaming the hole and retracting into the bore hole.

  • Range of different loads
  • Live date with wireless link
  • Robust watertight enclosure
  • Quick setup and instalation

Tensometr KSK - C02
Tensometr LSL - C02

System operation principles

check how the system operates

Drill head, located on the forehead of pushed rods determines the direction of drilling by giving the possibility of its control. With this feature, the drilling machine on the surface is able to perform controlled drilling which ends in a desired spot. Next, drilling head is replaced with a pilot reaming attached to the conduit pipe. Between the reaming head and the pipe to be installed a strain gauge is being located , which is aimed for collecting information of the forces acting on the retractable pipe.

Schemat Tensometr KSK-C02

In addition to the longitudinal load, which the tube is subjected to during insertion into the bore hole, there are also compressive forces caused by the mud pressure from bentonite drilling fluid. The combination of these forces may damage or "strain" pipeline, which inevitably leads to loss of patency or other incidents. Due to the size of the installed pipes we produce a range of strain gauges with different measurement ranges to match the size of the diameter of the pipe installed. These devices have been tested and implemented in all units of the company Jumarpol constructing underground installations using HDD.

Tight-fitting relining technology is used for sealing or repairing existing pipelines. Thanks to the fantastic parameters of pehd pipes, it is possible to repair entire sections of pipelines in a short time and at the same time with a minimal reduction in the diameter of the pipe. A tap with a diameter smaller than the diameter of the existing pipe is installed on the pipe face. A PE pipe of the same diameter as the existing one is then inserted into the tube. By pulling the PE pipe with sufficient force through the tube, the PE pipe stretches, reducing its diameter at the same time. After relining, the tapering is removed and the PEHD pipe returns to its original shape, perfectly filling the hole in which it was inserted, so that the losses in diameter and at the same time throughput are minimal. In this case, the tensometer is mounted on the front of the installed pipe to record the operation. A pipe subjected to too much force loses the effect of elasticity and does not return to its original diameter and at the same time does not meet the required requirements.

Tensometr KSK-C02

Technical specification of the product

  • Permissible strain gauge load force: 10 kN, 63 kN, 100kN, 500 kN (depending on the version)
  • Accuracy: ± 5% of the maximum load
  • Measurement resolution: 0.20%
  • Dimensions - outer diameter: 63mm (10 kN), 110mm (100kN), 330mm (500kN)
  • Dimensions - length: 183mm (10 kN), 240mm (100kN), 330mm (500kN)
  • Unit weight: 1.5 kg (10 kN), 15kg (100kN), 30kg (500kN)
  • Temperature range: -10 ° C to + 50 ° C
  • Battery life: 168 hours
  • Charging time: 10 hours
  • Charging voltage: 5 Volt

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