Description
VitraPOR® glass filter plate, biplane type, 20 mm diameter with porosity 4 and thickness 2,5 mm ± 0,2 mm is a precision filtration component manufactured from borosilicate glass 3.3. The plate offers ground faces that deliver exact thickness together with a plane-parallel surface, supporting consistent seating and reliable filtration performance in laboratory glassware assemblies. Supplied in packs of 10 pieces, this filter plate from manufacturer ROBU - Stereon is intended for applications requiring controlled pore size and dimensional accuracy. The biplane geometry and defined porosity grade 4 make it suitable for analytical and preparative separation tasks where uniform flow and mechanical stability are essential. Borosilicate 3.3 construction provides the chemical resistance and thermal properties expected in routine laboratory use. Tight thickness tolerance of ± 0,2 mm ensures reproducible fit across multiple setups, while the ground surfaces promote clean sealing interfaces. Ideal for integration into custom filtration apparatus or standard glass filter holders that demand precise, durable frit elements of porosity class 4.
This article is part of Sintered glass filter plates & discs, in Filtration.
Key features
- Pack size: 10 pc(s)
- Product type: VitraPOR® glass filter plate, biplane
- Material: Borosilicate glass 3.3
- Diameter: 20 mm
- Porosity: 4
- Thickness: 2,5 mm ± 0,2 mm
Récemment consulté
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Questions about Filter Disc, bi-plane, 20 mm, Por. 4 Thickness 2.5 mm ± 0.2 mm
What is this article?
Filter Disc, bi-plane, 20 mm, Por. 4 Thickness 2.5 mm ± 0.2 mm is the article on this page. Luminix Health distributes ROBU - Stereon for laboratory use. It sits in Sintered glass filter plates & discs, inside Filtration, in Consommables.
A sintered glass filter is a disc of fused glass particles with a porosity grade, often 0 to 5, from coarse to fine. It is cleaned and reused. The porosity number, not a micrometre guess, is the specification. Hydrofluoric acid and strong alkali attack the glass.
Filtration holds back what is larger than the pores and lets the rest through. Paper is the ordinary laboratory filter. A membrane has a stated pore size and a polymer that must survive the solvent. A syringe filter is that membrane in a housing on a syringe. Glass fibre takes a higher dirt load. Ultrafiltration holds back macromolecules and passes salts. The pore size, the chemical compatibility and the volume are the three choices. Laboratory apparatus around filtration is indexed under ISO laboratory apparatus.
Which category should I open next?
The category is Filtration. The sub-category is Sintered glass filter plates & discs. The catalogue is Consommables.
Shelves beside this one are Filter paper, Syringe filters, Filter cartridges & capsules, Membrane filters, Glass & quartz fibre filters, Bottle-top & vacuum filtration units, Ultrafiltration & concentrators, Filtration accessories, Extraction thimbles and Dialysis tubing & devices.
What should I check before I order?
When this page shows a safety data sheet, use that manufacturer file. Hazard text does not belong in the sales description. For a pack size, a grade or a certificate that is not on the page, send a quote request or contact the team.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.