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These established glass filters of Duran are characertized by a porous medium for filtration both for analytical and preparative labour work. The product range of this high quality porous material ranges from standard filter disks, filter disks with holes or on a glass ring to filter candles.
Filter products of Duran are featured by non-melded and centered processing. Furthermore the surface is untreated. The high capacity of the materials used can be ensured by the Duran specific Hartsinter processing. The following table gives an overview of the different porosity classes of Duran.
|P 250||P 160||P 100||P 40||P 16||P 1.6|
|max Pore Range
|160 - 250||100 - 160||40 - 160||16 - 40||1.6 - 16||1.0 - 1.6|
If you require intermediate sizes, divergent dimensions, geometry or porosity, which are not included in the standard product range, you can also contact us personally.
Gummi sleeves are used to ensure vacuum impervious between filter crucibles and venture. These products are available from Duran and Deutsch & Neumann. Sleeves for filter crucibles of Duran are manufactured out of EP (Ethylen-Propylen-Ter-Polymer) and can be sterilized up to +180 °C. The diameters range from 26 mm to 49 mm.
On the contrary sleeves for filter crucibles of Deutsch & Neumann are made out of gummi elasticum. the outer diameter of these products can be choosen between 26 mm and 49 mm. In the following table shows the different dimensions of the sleeves from Deutsch & Neumann.
|Inner Diameter [mm]||Outer Diameter [mm]||Height [mm]|