Description
Witaflo 3 mm is a straight-through high-vacuum valve intended for laboratory vacuum lines and glass apparatus. The valve body is manufactured from DURAN tubing and fitted with a valve stem of pure PTFE, combining chemical resistance with reliable sealing under high-vacuum conditions. Key dimensions include a 3 mm bore, 8 mm leg diameter and 75 mm overall length, terminated with GL 14 screw-thread connections for secure integration into existing glassware setups. Supplied as a single piece, the compact unit weighs 0,044 kg net and is well suited to stopcock and shut-off duties in vacuum manifolds, distillation trains and general laboratory vacuum systems. Categories such as valves, stopcocks and shut-off valves reflect its typical use in research and analytical environments. This Witaflo model from manufacturer Witeg provides a durable PTFE-on-glass solution where clean, grease-free high-vacuum control is required without compromising chemical inertness or dimensional precision.
This article is part of Stopcocks & valves, in Tubing, hoses & fittings.
Key features
- Pack size: 1 pc(s)
- Bore: 3 mm
- Leg diameter: 8 mm
- Length: 75 mm
- Connection: GL 14
- Valve stem: pure PTFE
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Questions about Straight high vacuum valve ''''Witaflo'''',
What is this article?
Straight high vacuum valve ''''Witaflo'''', is the article on this page. Luminix Health distributes Witeg for laboratory use. It sits in Robinets & vannes, inside Tubes, tuyaux et raccords, in Matériel de laboratoire.
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 Tubes, tuyaux et raccords. The sub-category is Robinets & vannes. The catalogue is Matériel de laboratoire.
Shelves beside this one are Raccords pour tuyaux, adaptateurs & raccords, Tuyaux PVC, PTFE & autres, Tuyaux en silicone and Accessoires pour tuyaux.
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.