Description
Valve stopcock for burette with side bore, manufactured in borosilicate glass 3.3, is designed for use with 25 ml burettes and offers an adjustable valve opening from 0 to 2,5 mm. This precision glass component supports controlled liquid delivery in volumetric titration and related analytical procedures where fine flow regulation is essential. The side-bore stopcock geometry facilitates integration into standard laboratory burette assemblies used in teaching, quality control, and research environments. Constructed from Boro 3.3 glass, the valve combines chemical resistance typical of this glass type with mechanical stability for repeated laboratory handling. Pack size is one piece, with a net weight of 0,0226 kg. Suitable as a replacement or original fitting for 25 ml burettes, the stopcock enables operators to set the valve aperture within the stated 0–2,5 mm range according to the required flow. This valve stopcock from manufacturer Brand is categorised among laboratory valves and stopcocks and is intended for professional volumetric glassware setups that demand reliable side-bore control on 25 ml burettes without additional configuration claims beyond the stated dimensions and material.
This article is part of Burettes, in Volumetric glassware.
Key features
- Pack size: 1 pc
- Material: Borosilicate glass 3.3
- Burette volume: 25 ml
- Valve opening: 0–2,5 mm
- Design: Side bore stopcock
- EAN: 4033378252036
Recently viewed
You may also like
Browse related categories
Category
Sub-category
Catalogue
Brand
Questions about Needle-valve stopcock/bur. lat. stopcock, f. bur.cap. 25 ml valve open.0-2,5 mm
What is this article?
Needle-valve stopcock/bur. lat. stopcock, f. bur.cap. 25 ml valve open.0-2,5 mm is the article on this page. Luminix Health distributes Brand 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.