Description
Vacuum stopper, DURAN®, bent 105° with sleeve/core 29/32 is a ground-glass joint accessory designed for vacuum connections on larger laboratory glassware used in distillation and extraction. The component combines a 105° bend with a 29/32 sleeve/core joint so that vacuum lines can be routed cleanly while maintaining a standard conical seal. DURAN® glass construction provides the dimensional stability expected for repeated assembly and disassembly of ground joints. Offered as one piece weighing 0,070 kg, the stopper matches NS 29/32 ports commonly found on reaction flasks, receivers and intermediate adapters. From manufacturer Lenz, it integrates directly into glass trains that already employ DURAN® jointed components, avoiding the need for size-conversion pieces. Typical laboratory use includes vacuum take-off points, controlled evacuation of apparatus and hose management where a bent geometry reduces mechanical stress on the joint. The defined joint size and bend angle support reproducible set-up of multi-neck systems and closed-process glassware. Pack size is a single unit for straightforward stocking and replacement in distillation and extraction workflows.
This article is part of Rubber & silicone stoppers, in Stoppers, caps & closures.
Key features
- Pack size: 1 pc
- Product type: Vacuum stopper
- Glass: DURAN®
- Bend angle: 105°
- Joint size: sleeve/core 29/32
- Weight: 0,070 kg
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Questions about Vacuum stopper, DURAN®, bent 105°, sleeve/core 29/32, 1 unit(s)
What is this article?
Vacuum stopper, DURAN®, bent 105°, sleeve/core 29/32, 1 unit(s) is the article on this page. Luminix Health distributes Lenz for laboratory use. It sits in Rubber & silicone stoppers, inside Stoppers, caps & closures, in Matériel de laboratoire.
A rubber or silicone stopper is pushed into a mouth. The size number corresponds to a top and bottom diameter. Silicone survives higher temperatures and more autoclave cycles. Natural rubber is attacked by oils and by some solvents.
A closure is the part that decides whether a bottle stays shut and whether the contents attack the seal. A ground-glass stopper matches a ground neck. A screw cap needs the right thread and a liner that survives the liquid. Rubber and silicone stoppers push into a mouth. The liner, not the colour of the cap, is the chemical choice. The vessels they close are indexed under ISO laboratory glassware.
Which category should I open next?
The category is Stoppers, caps & closures. The sub-category is Rubber & silicone stoppers. The catalogue is Matériel de laboratoire.
Shelves beside this one are Screw caps & closures, Ground-joint glass stoppers, Lids & seals and Closures (other).
What should I check before I order?
The technical information on this page is the manufacturer's sheet. Read that, not a rewritten specification.
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.