Graf percolation/infiltration tunnel 1800 Litre capacity - six unit package

Graf 1800 Litre capacity Infiltration tunnels

 6 units complete with 2 end plates, deaeration end and geo membrane to wrap.

Space-saving and good value. Specifically designed for use in private and rural areas.

 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 modual is only 11Kilos, the handling of the infiltration tunnel is excellent.  The surface beyond the tunnels can be loaded permanently up to 3.5 Tonnes/sqm and thus vehicle loading, which offers versatile possibilities for utilisation.

These tunnels are laid in lines and can be flexibly adapted to specific conditions and to the individual storage volume request.  The installation of the modules is easy, quick and variable.  The installation is possible without heavy equipment, as one infiltration tunnel only weights 11Kilos.  The tunnel modules are simply stuck together in one line and equipped with 2 end plates per line.

The Graf Infiltration tunnel is a system which has been particularly designed for infiltration of rainwater and retention respectively.  The structure of the modules allows a space-saving installation close to the surface, even under footprints used by cars.  The calculation according to ATV-A 138 (German standard) or corresponding, country-specific technical regulations in force must be followed for larger projects.  In order to avoid silt accumulation an infiltration filter must be installed.

• The system, consisting of one or more tunnel modules and two end plates, can be expanded as necessary  
• It is laid on one level.
• The lightweight is very easy to lay at only 15 kg.
• In order to facilitate free design of the surface above, the system can be permanently loaded with approx. 3.5 t per m2 and, thus, is suitable for vehicle loading.
• Specifically designed for use in private and rural areas
• Percolation system for extensive percolation of rainwater
• Retention system to relieve public sewer networks
• Replaces conventional drainage pipe with gravel packing
• Saves rain tax

Per Unit: