Description
Spare part PTFE stopcock is a replacement component intended for burettes that use a detachable PTFE valve assembly. The stopcock is supplied without tip and incorporates a bore of 2,5 mm for controlled liquid passage during titration. Manufactured from chemically resistant PTFE, it withstands contact with a broad spectrum of aqueous and organic reagents commonly encountered in volumetric analysis. Net weight is 0,014 kg. Offered in packs of 2 pieces from manufacturer Witeg, this spare part enables quick restoration of burette functionality when the original stopcock becomes worn or contaminated. The 2,5 mm bore supports smooth, adjustable flow rates suitable for precise endpoint determination. Compatible with corresponding amber-glass DIN-B burettes that accept removable PTFE stopcocks, the component helps maintain continuous laboratory operation. Clear bore geometry and inert PTFE material ensure reliable sealing and chemical inertness throughout repeated titration cycles in research, quality-control and teaching laboratories.
This article is part of Stopcocks & valves, in Tubing, hoses & fittings.
Key features
- Pack size: 2 pc(s)
- Type: spare PTFE stopcock
- Bore diameter: 2,5 mm
- Configuration: without tip
- Material: PTFE
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Questions about Spare PTFE stopcock without glass tip
What is this article?
Spare PTFE stopcock without glass tip 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. Delivery across Europe, two to five days when in stock. 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.