Description
Valve stopcock for burette with side bore, manufactured in borosilicate glass 3.3, is designed for use with 50 ml burettes and provides an adjustable valve opening from 0 to 2,5 mm. This glass valve component is intended for controlled dispensing in volumetric titration and other analytical workflows where precise flow adjustment on a 50 ml burette is required. The side-bore configuration supports standard laboratory burette assemblies in research, quality-control, and educational settings. Boro 3.3 construction offers the chemical durability associated with this glass grade together with the dimensional stability needed for repeated stopcock operation. The article is supplied as a single piece with a net weight of 0,0221 kg. As a dedicated fitting for 50 ml burettes, it allows the operator to regulate the valve aperture across the stated 0–2,5 mm range to match the desired delivery rate. This valve stopcock from manufacturer Brand belongs to the laboratory valves and stopcocks category and is aimed at professional volumetric glassware systems that specify side-bore control, borosilicate 3.3 material, and compatibility with 50 ml burettes according to the manufacturer data.
This article is part of Burettes, in Volumetric glassware.
Key features
- Pack size: 1 pc
- Material: Borosilicate glass 3.3
- Burette volume: 50 ml
- Valve opening: 0–2,5 mm
- Design: Side bore stopcock
- EAN: 4033378252043
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. 50 ml valve open.0-2,5 mm
What is this article?
Needle-valve stopcock/bur. lat. stopcock, f. bur.cap. 50 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.