Description
Conical ground joint stopper NS 34/35 semi-hollow with octagonal grip disc is a high-quality laboratory sealing component manufactured from borosilicate glass 3.3. Designed for standard NS 34/35 conical ground joints, the semi-hollow body and octagonal grip disc provide a secure fit and convenient manual handling during assembly or disassembly of glass apparatus. The borosilicate glass 3.3 material offers strong resistance to chemical attack and good thermal performance, supporting use in a variety of synthetic, analytical and storage applications. Delivered as one piece with a net weight of 0,0902 kg, the stopper integrates easily into existing glassware inventories. Produced by manufacturer Brand, this stopper ensures reliable closure of flasks, reactors and adapters, helping to minimise vapour loss and maintain controlled atmospheres. The octagonal grip disc affords improved leverage and safer manipulation, particularly when working with larger joint sizes or under gloved conditions. Research, quality-control and teaching laboratories that rely on NS 34/35 ground-joint systems will find this durable glass stopper a practical and long-lasting accessory for routine and specialised 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 34/35
- Design: Semi-hollow with octagonal grip disc
- EAN: 4032051012004
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Questions about Conical joint stopper borosilicate glass, NS 34/35, semi-hollow, octagonal grip
What is this article?
Conical joint stopper borosilicate glass, NS 34/35, 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.