Description
High-vacuum stopcock in one-way form with parallel limbs and hollow glass plug NS 14,5/2,5 mm bore is a specialised laboratory valve manufactured from borosilicate glass 3.3. The design features parallel side arms and a hollow glass plug ground to the NS 14,5 standard with a 2,5 mm bore, making it suitable for high-vacuum applications. This single-piece component weighs 0,054 kg net and enables precise isolation or connection of vacuum lines within glass apparatus. Borosilicate glass 3.3 ensures the necessary chemical resistance and dimensional stability under vacuum conditions. Produced in Germany and bearing the Rettberg ® registered trademark, the stopcock is intended for integration into valve, conical-stopcock and shut-off assemblies used in vacuum distillation, Schlenk lines and analytical vacuum systems. The parallel-limb geometry and standardised joint facilitate compact, leak-tight installations. Supplied as 1 pc(s), it offers reliable one-way flow control for demanding laboratory vacuum work.
This article is part of Stopcocks & valves, in Tubing, hoses & fittings.
Key features
- Pack size: 1 pc(s)
- Product type: High-vacuum stopcock
- Material: Borosilicate glass 3.3
- Bore: NS 14,5/2,5 mm
- Design: One-way form, parallel limbs
- Technical Information Sheet:
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Questions about High vacuum stopcock, hollow glass plug size 14,5/2,5 mm bore, straight
What is this article?
High vacuum stopcock, hollow glass plug size 14,5/2,5 mm bore, straight is the article on this page. Luminix Health distributes Rettberg 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.
