ROKI TECHNO CO.,LTD.

Character of filter structure

Features of the String wound type

糸巻きタイプ図

    Optimal for these needs

  • You want to roughly filter the liquid containing high density of solid or having wide range of particle distribution, or you want to remove gel material.

    Features

  • The structure becomes gradually finer as it goes from the upstream to the downstream of the filter (graded density slope), and the filtration is performed utilizing the thickness of the filter media.

Image of particle distribution before and after filtration

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ロールタイプの特徴

ロールタイプ図

    Optimal for these needs

  • You want to securely trap particular particles having diameter greater than specific size in the liquid having wide range of particle distribution, or you want to remove gel material.
  • Features

  • Several kinds of non-woven fabrics with different fiber diameter are wound in a roll-shape. It is featured by the graded density slope in which the removal rating is rough at the upstream and it becomes finer as the liquid flows to the downstream. The filtration is performed utilizing the thickness of the filter media.

Image of particle distribution before and after filtration

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Surfaceタイプの特徴

Fewatures of the surface type

    Optimal for these needs

  • You want to filter the liquid having narrow particle distribution and containing fewer solids with low pressure loss and for a long time.

    Features

  • The non-woven fabric is processed into a pleated state in order to make the filtration area larger, and the filtration is performed on the surface of the filtration material.

Image of particle distribution before and after filtration

濾過前、濾過後

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デプス・プリーツタイプの特徴

デプス・プリーツタイプ図

    Optimal for these needs

  • You want to filter, efficiently removing gel in the liquid with low pressure loss and for a long time.

    Features

  • By pleating several kinds of non-woven fabrics all together, both excellent filtration purity slope as the advantage of the roll type and wide filtration area as the advantage of the pleated type are realized. The filtration is performed on the surface of the filter material and through the thickness of the filter media.

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Absorbentタイプの特徴

Absorbentタイプ図

    Optimal for these needs

  • You want to selectively absorb and remove specific substances such as chlorine in the liquid (product type: MCK). You want to remove components of turbidity (colloidal substances) or causal substances of deposition (fatty acids or various polyphenol substances) (product type: PEA/ASP).

    Features

  • In addition to the physical filtration performed through the space between the fibers, the filtration is also performed by the absorbent contained in the filter material (active charcoal, diatomaceous earth, pearlite, etc).

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Qflowタイプの特徴

Qflowタイプ図

Optimal for these needs

  • You want to increase the flow with fewer cartridges, or you want to reduce the initial cost and save the space by making the housing smaller.

    Features

    • ROKI TECHNO’s original product, making the inner and outer diameters of the string wound type and the pleated type greater than usual in order to make the flow rate 4 times greater than that of normal cartridges.


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