GEROtherm® FLUXThe conical geothermal probe for greater safety and pressure control


Double-U probe for shallow geothermal use. Resists internal pressure de 43 mm up to PN32@20°C. Resists internal pressure de 53 mm up to PN38@20°C.


The geometry of the foot (U-bend) is identical to that of the double-U probes, although they are made from a special plastic. Optimised probe pipe with an outside diameter of 43mm or 53mm and variable wall thickness made from PE 100-RC.

Products details


  • Polyethylene PE100-RC (RC = resistance to crack) and polyamide PA12


  • Temperature range: -20°C/­+40°C

  • Pressure resistance: up to PN32@20°C
  • Dimensions: de 43mm

  • Pressure resistance: up to PN38@20°C
  • Dimensions: de 53mm

For further product details, please refer to the corresponding Technical datasheet or the Flyer.


  • Pressure-resistant probes de 43mm up to PN32@20°C
  • Pressure-resistant probes de 53mm up to PN38@20°C
  • Optimised hydraulic pressure loss and therefore more efficient overall systems
  • Compatible with the GEROtherm® weight system‎, the GEROtherm® PUSH-FIX impact-resistant sleeve including weight connector and the GEROtherm® UNI-FIX universal weight mounting
  • Optimum heat transfer and performance
  • 100% plastic for better corrosion resistance
  • Significantly improved buckling pressure resistance in the lower section
  • Max. diagonal dimension of 121mm
  • Proven mud container in probe foot (U-bend) with two ribs that make it easier to use a measuring float
  • No need for welding on site
  • Patent No. EP 2 706 308
  • SKZ certified and monitored. SKZ certificate No. A724

Please refer to the corresponding Tender specification for a more detailed product description.

Price list

(For the price list in € please contact our sales team.)


Dimension Pressure resistance Standard lengths
Ø probe foot
Coil dimensions
43 x 3.5-6.5mm up to PN32@20°C 240 - 410 meter 121mm Probes
53 x 4.3-9.2mmup to PN38@20°C260 - 500 meter148mmProbes
Factory certificate as per EN 10204 2.2




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