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The innovative drainage filters by RBM are successfully being used all over the world. They are state of the art and meet international standards as the KOMO® quality certification.

Drainage filter made of polypropylene fiber:
Made of primary or secondary fibers or a mixture of different fiber strength. The PP filter can be adapted to the soil structure, inter alia by changing the fiber thickness the pore sizes are adjusted to match the grain size or the soil. The PP filter meets the new Dutch standard (our certificate number is K4228/04) with various pore sizes (from 350-800 µm) as well as other international standards.

Advantages of PP filters:

  • unlimited service life due to high chemical and biological resistance
  • no moisture absorption of the fiber
  • low hydraulic inlet resistance

Application areas:

  • improvement of agricultural land
  • road construction
  • house construction
  • Construction of sports fields and all other types of drainnage

Coconut fiber drainage filters
Made from loosened coconut fibers with an even pore distribution. The filter has a high water absorption capacity and is well suited for slopes affected by desludging such as clayey-sandy soil.

 

 

Filter types

Coconut fiber 700 filter
The O90 test value of this filter is 700µm and holds back 90% of all soil particles bigger then 700 µm. Coconut fiber filters are degradable after a long time and have been successfully used in areas where there is a high quantity of iron ochre in the soil.
coir fiber 700
PP 450 filter
The O90 Test value of this filter is 450 μm and holds back 90% of all soil particles bigger then 450 μm. It consists of a blend of synthetic fibers and can be used for several soil types and circumstances and is manufactured according to the KOMO® Standard.
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PP 700 filter
The O90 Test value of this filter is 700 μm and holds back 90% of all soil particles bigger then 700 μm. The PP 700 filter consists of a different blend of synthetic fibers than the PP 450 filter and is mainly used for loamy sands, sandy soils and peaty soils. It is manufactured according to the KOMO® standard.
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PP 1000 filter
The O90 Test value of this filter is 1000 μm and holds back 90 % of all soil particles bigger then 1000 μm. The PP 1000 filter consists of coarse high class synthetic fibers and is a nondegradable filter that is mainly used in soils with an high iron ochre content.
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Thin Geotextiles filters
Thin Geotextiles filters used as drainage filters are manufactured by a variety of manufacturers in many versions (Cerex, Typar, knitted sock sleeve).
vermischeinheit