Description
High-vacuum straight-through valve, 0–6 mm, with PTFE spindle is a precision glass valve for controlled flow in high-vacuum laboratory systems. The valve body is manufactured from borosilicate glass 3.3 and features a fine-thread mechanism with a PTFE spindle that allows smooth, reproducible adjustment of the passage from fully closed to a maximum opening of 6 mm. Tube connections have an outer diameter of 9 mm for straightforward integration into standard glass vacuum lines and manifolds. With a net weight of 0,043 kg the compact straight-through design suits bench-top vacuum apparatus, Schlenk lines and analytical setups where chemical resistance and low outgassing are required. The PTFE spindle provides reliable sealing against the glass seat while remaining inert to many laboratory media. Offered as a single piece from manufacturer Rettberg, this high-vacuum valve supports research and process work that demands fine control of gas or vapour flow under reduced pressure. Pack size is one piece.
This article is part of Stopcocks & valves, in Tubing, hoses & fittings.
Key features
- Pack size: 1 pc
- Passage: 0–6 mm
- Spindle material: PTFE
- Tube connection outer Ø: 9 mm
- Body material: Borosilicate glass 3.3
- Product type: High-vacuum valve
- Technical Information Sheet:
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Questions about High vacuum valve, straight, 0 - 6 mm, with PTFE-spindle,
What is this article?
High vacuum valve, straight, 0 - 6 mm, with PTFE-spindle, is the article on this page. Luminix Health distributes Rettberg 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.