Drainage cell for rainwater collection and infiltration

The increasing sealing of building areas such as parking lots for supermarkets are problematic especially in heavy rain events. Usage of permeable surfaces like paving stones with wide joints or grass pavers is important to prevent flooding. With the help of these permeable surfaces the accumulating rainwater is quickly drained into the ground. In the layers beneath, it must either be infiltrated quickly or be temporarily stored. XFlow significantly improves the infiltration performance thanks to its wide effective area and the good hydraulic connectivity. In addition, the high storage coefficient compared to typical installations with gravel/ crushed stones improves the characteristic for the temporary storage of rainwater in the operational area.

  • Easy and flexible assembly
  • For all combinations with XFlow 50-L & XFlow 50-S lengthwise and crosswise
  • Improve your permeable areas
  • High stability combined with the best hydraulic properties
  • Reduction of puddles
  • Ideal for high point and traffic loads, also under special vehicles

Fields of application: 

  • Carparks/traffic areas
  • Outdoor storage areas
  • Planted areas/tree tubs
  • Park/Green areas
  • Retaining walls/Building structure
  • Sports areas

Optimisable installation
Xflow 50-L and XFlow 50-S can be combined to optimal effect, even in unusual geometries. The interaction between these two sizes serves to minimise cut waste and shorten assembly times to the same extent.

Improved handling
Fastest assembly – easy onsite handling. XFlow drainage cell feature a convenient plugin system for huge time savings in installation. The various cells can be assembled in any direction

Maximised stability
XFlow drainage cell are made of high performance GRAF compounds. Just the one installation of small thickness between traversable surface and XFlow is enough to safeguard the strength and stability of the drainage cell over decades.

Hydraulic performance
XFlow provides free 3D-hydraulic flows. For infiltration applications water flows directly into the ground. Also other applications are supported by this design e. g. collecting and directing rainwater.


Length [mm]Width [mm]Height [mm]Weight [kg]order no.add to enquiry
50-S (0.16 m², 1.72 ft²)560 (22")280 (11")52 (2")1,2495001
50-L (0.64 m², 6.89 ft²)1120 (44")560 (22")52 (2")4,3495000

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