FAQ#021 – Is the repressurizing hand pump for NATM pressure cells filled by de-aired oil, ready to use? Which kind of oil is used for this purpose?

Yes it is. The pump is filled at factory under vacuum with de-aired oil. For normal use within concrete the oil inside the pump is enough to repressurize 50 pcs. of NATM pressure cells. The oil we use is Edwards Ultra-grade 19 type for vacuum-pump use.

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Sisgeo presents the new MD-Profile IPI with 360° calibration
Discover the next generation of In-Place Inclinometers for geotechnical monitoring!

The new MD-Profile 360° features:

  • new removable pressors available for 3 different tube ID
  • new triaxial calibration over the entire 360° range
  • even stronger connectors

When: 27/05/2025 3:00 PM – 3:30 PM GMT+1
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: English