Description
The PTFE sealing ring Varispenser 2 is a high-performance sealing component intended for the valve block of Varispenser® 2 and Varispenser® 2x bottle-top dispensers. Manufactured from pure PTFE, the ring delivers excellent chemical resistance and low friction, ensuring reliable sealing under repeated use with a wide range of laboratory reagents. This spare part restores or maintains the integrity of the valve assembly, preventing leaks and preserving dispensing accuracy. Supplied as a single piece, it is dimensioned for direct installation in the corresponding Eppendorf instruments without modification. In analytical, research and quality-control settings the PTFE sealing ring supports consistent liquid handling by safeguarding the critical valve interface against wear and chemical attack. Its inert material properties make it suitable for aqueous, organic and aggressive media commonly encountered in life-science and chemistry laboratories. Regular replacement of this wear part helps extend the service life of the dispenser and reduces the risk of cross-contamination or volume errors. The compact design allows straightforward exchange during scheduled maintenance, keeping bottle-top dispensers operational and ready for precise reagent delivery.
This article is part of Pipette stands, calibration & accessories, in Liquid handling.
Key features
- Pack size: 1 pc
- Material: PTFE
- Type: Sealing ring
- Compatibility: Varispenser® 2/2x
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Questions about PTFE sealing ring Varispenser 2
What is this article?
PTFE sealing ring Varispenser 2 is the article on this page. Luminix Health distributes Eppendorf for laboratory use. It sits in Pipette stands, calibration & accessories, inside Liquid handling, in Lab instruments.
A pipette stand holds piston pipettes upright so liquid does not run into the piston. Calibration accessories and certificates are how a pipette's delivered volume is shown to be inside tolerance. A stand is also a carousel. The certificate belongs to one pipette, identified by serial number.
A piston pipette delivers a set volume of liquid by air displacement or, for viscous and volatile liquids, by positive displacement. A single channel is the ordinary tool. A multichannel repeats the same volume across a row of a plate. A bottle-top dispenser meters reagent from the bottle it sits on. The accuracy is a property of the pipette and of how it is used, which is why calibration and a certificate exist. Piston-operated apparatus is treated under ISO laboratory apparatus. The volume unit sits with the BIPM and NIST.
Which category should I open next?
The category is Liquid handling. The sub-category is Pipette stands, calibration & accessories. The catalogue is Lab instruments.
Shelves beside this one are Single-channel pipettes, Bottle-top dispensers, Multichannel pipettes and Electronic pipettes.
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. Articles in stock ship within 2–5 business days. 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.