Description
Vacuum shut-off valve 0–15 mm with dual KF DN 25 connections is a removable glass adapter designed for suction-side linking to a double cold trap in vacuum and Schlenk setups. Constructed from borosilicate glass 3.3, it provides a stable, chemically resistant path for controlled vacuum isolation. The assembly includes a 0–6 mm valve plus an olive Ø 10 mm for additional vacuum take-off or venting, together with a KF DN 25 connection to the vacuum line and a transition piece from KF DN 25 to olive Ø 16 mm (internal diameter 9 mm). Flange material is supplied so the unit is ready for immediate installation. With a net weight of 0,455 kg, the compact adapter integrates cleanly into laboratory vacuum manifolds and cold-trap lines. Typical use includes Schlenk apparatus, vacuum distribution and controlled isolation or aeration of glass vacuum systems. Manufactured by Rettberg, this valve supports reliable, leak-tight operation where KF DN 25 geometry and fine manual control are required.
This article is part of Stopcocks & valves, in Tubing, hoses & fittings.
Key features
- Pack size: 1 pc
- Material: Borosilicate glass 3.3
- Connections: 2x KF DN 25
- Valve range: 0–15 mm
- Additional outlet: Olive Ø 10 mm
- Transition piece: KF DN 25 to olive Ø 16 mm (i.d. 9 mm)
- Technical Information Sheet:
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Questions about Vacuum shut-off valve 0-15 mm, 2x flange DN 25
What is this article?
Vacuum shut-off valve 0-15 mm, 2x flange DN 25 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.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.