Description
Filter plate, biplanar, 280 mm, Por. 3 is a VitraPOR® glass filter disc in borosilicate glass 3.3 for laboratory and process filtration. The plate has a diameter of 280 mm, porosity grade 3 and a controlled thickness of 18,0 mm with a tolerance of ± 0,5 mm. Both faces are ground to an exact thickness and a plane-parallel surface, supporting uniform contact and seating in matching holders or filtration assemblies. Offered as a single piece from manufacturer ROBU - Stereon, this biplanar format suits clarifying and general filtration work where a defined pore structure and dimensional accuracy matter. Borosilicate glass 3.3 provides the chemical resistance and thermal behaviour expected in routine laboratory use with aqueous media and many common solvents. The large 280 mm diameter is practical for higher-throughput setups, while porosity 3 covers a medium pore range frequently chosen for particle retention and liquid clarification. Ground, plane-parallel surfaces help maintain even filtration paths across the disc. Suitable for research, quality-control and production laboratories that require durable glass filter media in a precise biplanar geometry.
This article is part of Sintered glass filter plates & discs, in Filtration.
Key features
- Pack size: 1 pc
- Product type: Biplanar glass filter plate
- Brand: VitraPOR®
- Material: Borosilicate glass 3.3
- Diameter: 280 mm
- Porosity: 3
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Questions about Filter Disc, bi-plane, 280 mm, Por. 3 Thickness 18.0 mm ± 0.5 mm
What is this article?
Filter Disc, bi-plane, 280 mm, Por. 3 Thickness 18.0 mm ± 0.5 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 Lab consumables.
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 Lab consumables.
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.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.