Description
Burette stopcock for 50 ml burettes is a solid lateral glass stopcock intended for accurate volumetric titration on larger-capacity glassware. It is equipped with a standard ground joint NS 12,5 and a 1,6 mm bore, conforming to DIN 12541. Fabricated from DURAN tubing, the stopcock combines chemical durability with the dimensional stability required for everyday laboratory use. Delivered as one piece, it serves as a direct replacement part for 50 ml burettes that employ the same NS 12,5 side outlet. The solid-plug construction allows fine control of titrant flow while preserving a tight seal during measurement. Suitable for teaching laboratories, industrial QC and research environments that rely on classical glass burettes, this accessory from manufacturer Witeg restores reliable operation without the need to discard an otherwise serviceable burette body. Standardised geometry guarantees compatibility with DIN-compliant 50 ml burette systems used across analytical chemistry workflows.
This article is part of Stopcocks & valves, in Tubing, hoses & fittings.
Key features
- Pack size: 1 pc
- Joint size: NS 12,5
- Bore diameter: 1,6 mm
- Standard: DIN 12541
- Material: DURAN glass tubing
- Design: Lateral solid stopcock
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Questions about Stopcock for burettes 50 ml
What is this article?
Stopcock for burettes 50 ml is the article on this page. Luminix Health distributes Witeg for laboratory use. It sits in Stopcocks & valves, inside Tubing, hoses & fittings, in Labware.
A stopcock opens and closes a line, or directs it between ports. Glass stopcocks have a ground plug that needs grease or a PTFE key. The bore decides the flow. A two-way and a three-way key are different parts.
Tubing is how a liquid or a gas moves between two vessels without being poured. Silicone stays flexible and survives repeated autoclaving. PTFE resists almost every solvent and is stiff. PVC is the ordinary flexible line for water and for mild aqueous work. The fitting, not the tube, is what usually leaks: the barb, the thread and the stopcock have to match the tube bore. Glass and plastic apparatus around these lines is indexed under ISO laboratory ware.
Which category should I open next?
The category is Tubing, hoses & fittings. The sub-category is Stopcocks & valves. The catalogue is Labware.
Shelves beside this one are Hose connectors, adapters & fittings, PVC, PTFE & other tubing, Silicone tubing and Tubing accessories.
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.