Infiltration Tunnel

Infiltration Tunnel
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Infiltration Tunnel

Infiltration Tunnel

Key Features

  • The Graf infiltration tunnel has been mainly designed for the use in private and rural areas

  • The system which consists of one or several tunnel modules and two end plates can be extended at will

  • The laying is realized in one or more lines of the same level

  • As the weight of one module is only 11 kilos, the handling of the infiltration tunnel is excellent

  • The surface beyond the tunnels is lorry-bearing which offers versatile possibilities 

  • The infiltration tunnel can be loaded permanently up to 59kN/sqm and thus is also suitable for lorry-bearing

  • 5 years warranty

Product Specs

  • Length: 1160mm

  • Width: 800mm

  • ​​​​​​​Height: 510mm

  • ​​​​​​​Capacity: 300L


Up to 12,000 litres infiltration volume per pallet

Thanks to its special design, the GRAF Infiltration Tunnel can be stacked easily. Consequently, the shipment of up to 40 Infiltration Tunnels on one pallet saves considerable transport and storage costs.

Vehicle loading

For versatility, the surface above the infiltration tunnels can withstand a continuous load of up to 100 kN/m2 and is therefore also suitable for vehicle loading.

​​​​​​​Easy installation

The GRAF Infiltration Tunnels are laid in lines and can be flexibly adapted to specific conditions and to the individual storage volume requested. The installation of the modules is easy, quick and variable. Installation is possible without heavy equipment, as one Infiltration Tunnel weighs just 11 kg. The tunnel modules are simply joined together in a line and two end plates are fitted per line.


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