Description
VitraPOR® biplanar glass filter plate is a precision disc in borosilicate glass 3.3 with a diameter of 350 mm, porosity grade 4 and a thickness of 23,0 mm ± 0,5 mm. Both faces are ground to deliver exact thickness and a plane-parallel working surface, supporting uniform contact and controlled flow across the full filter area. The chemically robust borosilicate 3.3 matrix offers the thermal and mechanical stability expected of laboratory glass filter media, while the defined porosity grade 4 provides consistent retention behaviour for filtration and separation tasks. This large-format VitraPOR® plate from manufacturer ROBU - Stereon is intended for apparatus, custom assemblies and process setups that require a biplanar frit of tightly specified geometry. Ground, plan-parallel surfaces help maintain dimensional accuracy during mounting and use. Supplied as a single piece, the plate suits research, analytical and industrial filtration environments where a durable 350 mm glass filter medium with porosity 4 and controlled thickness tolerance is specified.
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: 350 mm
- Porosity: 4
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Questions about Filter Disc, bi-plane, 350 mm, Por. 4 Thickness 23.0 mm ± 0.5 mm
What is this article?
Filter Disc, bi-plane, 350 mm, Por. 4 Thickness 23.0 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.
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.
How does ordering and shipping work?
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.
Which other categories should I open?
The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.
