Description
Conical ground joint stopper NS 29/32 semi-hollow with octagonal grip disc is a precision-engineered laboratory closure made from borosilicate glass 3.3. The semi-hollow design combined with the octagonal grip disc allows secure, easy handling when sealing standard ground-joint glassware of NS 29/32 size. Borosilicate glass 3.3 provides excellent chemical resistance and thermal stability, making the stopper suitable for a broad range of organic and inorganic applications in synthesis, distillation and storage setups. Each unit is supplied as a single piece with a net weight of 0,0616 kg, ensuring straightforward inventory management. This stopper from manufacturer Brand fits tightly into matching conical joints, helping to maintain inert atmospheres or prevent evaporation during reactions and sample holding. The octagonal grip surface improves torque control and reduces the risk of slippage when inserting or removing the stopper, even when wearing gloves. Laboratories requiring reliable, reusable glass stoppers for NS 29/32 apparatus will appreciate the dimensional accuracy and durable material of this component for everyday bench and process work.
This article is part of Ground-joint glass stoppers, in Stoppers, caps & closures.
Key features
- Pack size: 1 pc
- Material: Borosilicate glass 3.3
- Joint size: NS 29/32
- Design: Semi-hollow with octagonal grip disc
- EAN: 4033378280657
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Questions about Conical joint stopper borosilicate glass, NS 29/32, semi-hollow, octagonal grip
What is this article?
Conical joint stopper borosilicate glass, NS 29/32, semi-hollow, octagonal grip is the article on this page. Luminix Health distributes BRAND for laboratory use. It sits in Ground-joint glass stoppers, inside Stoppers, caps & closures, in Labware.
A ground-glass stopper matches a ground neck of a stated joint size. A 14/23 stopper does not seal a 29/32 neck. The stopper is part of the flask's seal, and a chip on the grind is a leak.
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 Ground-joint glass stoppers. The catalogue is Labware.
Shelves beside this one are Screw caps & closures, Rubber & silicone stoppers, Lids & seals and Closures (other).
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.