Description
Burette valve, side, with PTFE spindle, bore 0 - 3 mm is a laboratory control valve made of borosilicate glass 3.3. It features a PTFE spindle, sealing ring and over-rotation protection that together permit precise adjustment of the passage from 0 to 3 mm. The side-outlet tube has an outer diameter of 8 mm, facilitating connection to burettes and related glass apparatus. Supplied as 1 pc and weighing 0,018 kg net, this side-entry valve is designed for titration setups, volumetric work and fluid-handling systems in which a lateral take-off is advantageous. The borosilicate glass body combined with the PTFE spindle offers a practical material pairing for everyday laboratory media, while the over-rotation safeguard protects the spindle during repeated operation. From manufacturer Rettberg, the valve forms part of the assortment of laboratory stopcocks and shut-off devices employed in analytical, preparative and educational environments. Its side configuration allows compact routing of tubing or joints when space or apparatus geometry requires an angled outlet. The design supports visual confirmation of the bore position and straightforward cleaning, contributing to reliable metering and shut-off performance in research and quality-control applications that rely on glass and PTFE components.
This article is part of Burettes, in Volumetric glassware.
Key features
- Pack size: 1 pc
- Product type: Valves
- Material: Borosilicate glass 3.3 with PTFE spindle
- Bore: 0 - 3 mm
- Tube outer diameter: 8 mm
- Sealing: Sealing ring and over-rotation protection
- Technical Information Sheet:
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Questions about Burette valve, lateral, passage 0 - 3 mm, PTFE-spindle and
What is this article?
Burette valve, lateral, passage 0 - 3 mm, PTFE-spindle and is the article on this page. Luminix Health distributes Rettberg for laboratory use. It sits in Burettes, inside Volumetric glassware, in Labware.
A burette delivers a measured volume through a stopcock, which is how a titration is read. Class A and class AS state the tolerance. The stopcock, glass or PTFE, and the volume of the burette are the choices. A dirty bore changes the delivered volume.
Volumetric glassware is glass that has been calibrated to contain or to deliver one stated volume at a reference temperature. That calibration is the whole point. Class A and class AS have a tighter tolerance than class B. A volumetric flask contains. A pipette and a burette deliver. A measuring cylinder is the coarser reading, used when the volume is not the result. The classes sit under ISO laboratory glassware. The chain back to the unit of volume is the work of the BIPM and of NIST.
Which category should I open next?
The category is Volumetric glassware. The sub-category is Burettes. The catalogue is Labware.
Shelves beside this one are Volumetric flasks, Measuring cylinders, Mixing cylinders and Volumetric accessories & certificates.
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.