Description
VitraPOR® biplanar glass filter plate, 120 mm diameter, porosity 4, is a precision laboratory filtration component manufactured from borosilicate 3.3 glass. With a controlled thickness of 7,5 mm ± 0,2 mm, the plate provides exact dimensional stability for reproducible filtration work. Both faces are ground to deliver a plane-parallel surface finish and uniform thickness across the entire disc. This construction supports even media distribution and reliable sealing in filter holders or custom apparatus. The biplanar geometry and defined porosity grade make the disc suitable for analytical and preparative separations that require chemical resistance together with thermal durability. Supplied as a single piece from manufacturer ROBU - Stereon, the VitraPOR® filter plate integrates readily into standard laboratory filtration setups. Its ground, plan-parallel surfaces minimise variation and help maintain consistent flow characteristics. The combination of borosilicate 3.3 material, precise porosity 4 rating and tight thickness tolerance ensures dependable performance in routine and specialised filtration applications where flatness and dimensional accuracy are essential.
This article is part of Sintered glass filter plates & discs, in Filtration.
Key features
- Pack size: 1 pc
- Product: VitraPOR® biplanar glass filter plate
- Material: Borosilicate 3.3
- Diameter: 120 mm
- Porosity: 4
- Thickness: 7,5 mm ± 0,2 mm
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Questions about Filter Disc, bi-plane, 120 mm, Por. 4 Thickness 7.5 mm ± 0.2 mm
What is this article?
Filter Disc, bi-plane, 120 mm, Por. 4 Thickness 7.5 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 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.
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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Luminix Health distributes this article from the heart of Europe. Delivery across Europe, two to five days when in stock. Standard delivery is free from €250 excl. VAT. Cold-chain goods and dangerous goods under ADR are never included in that free delivery. The terms are in the Shipping Policy. The full brand index is on shop by brand. Who we are is on about us.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.