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Filter cartridges

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Technofilter’s standard filter cartridge is a cylinder with the diameter of 70 mm and the height of 250 mm, the cylinder has an inner perforated polypropylene body wrapped around with layers of various filtrating materials. An outer perforated body ensures mechanical strength of the cartridge during filtration, wash out and


The filtration process takes place from the outside to the inside, while the filtrate flows out from the lower part of the inner case (dead-end mode).

Filter Cartridges with the height of 500 mm, 750 mm and 1000 mm are produced on the basis of standard elements. Tightness of connections is provided only with heat sealing without any glues which precludes any extraction of components.

To increase filtration surface area, we use the pleating technology, whereby filter material layers are overlapped with each other and placed as pleats around the inner perforated body.

Technofilter RME Ltd was the first Russian company that developed and applied the pleating technology in production of filter cartridges. Our pleating technology provides an increase in the filtration surface area of a cartridge up to 1 m2  (for an element with the height of 250 mm) giving maximum access of liquid (or gas) to the overall surface of a cartridge and ensuring high lifetime and contamination capacity of a product. In addition to filter cartridges, we produce rolled and filled filter cartridges.

Classification of filter cartridges by particle retention mechanism 

  • Membrane (surface particle retention predominates)
  • Pleated depth (combination of surface and depth particle retention mechanisms)
  • Fiber depth (particle retention occurs in the bulk of filter material)

In addition, the filter cartridges can be classified as hydrophilic (designed to filter liquids) and hydrophobic (for filtration of air, gaseous and non-aqueous media). 

Depending on the type of filter holder, the elements are available with different adapters or without adapter. All adapters are universal and allow the use of filter cartridges produced by Technofilter RME Ltd in various filter holders including ones by other manufacturers. The sealing of the cartridge in the housing is provided by elastic sealing rings made of silicone or other materials compatible with the medium to be filtered.

Mini-cartridge is a smaller version of a standard Filter Cartridge, it has the diameter of 70 mm and the height of 100 mm, 125 mm or 150 mm. Mini-Cartridges are used in the same fields as standard filter cartridges for filtration of smaller volumes.

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