Description
Sealing stopper NS 24/29 (Wertex type) is a precision ground-joint component for airtight closure of desiccators fitted with a safety connection. Made from borosilicate glass 3.3, it delivers a dense seal through the standard NS 24/29 joint. A matching washer permits permanent mounting so the stopcock remains firmly attached to the desiccator. Designed specifically for the Wertex-type safety connection, the stopper supports reliable vacuum and drying work in the laboratory. Supplied as a single piece under the DURAN® brand from manufacturer Duran/DWK Life Sciences, it integrates directly with compatible desiccator lids. The robust glass construction maintains seal integrity during repeated use while the standardised joint ensures interchangeability with common laboratory glassware. Typical applications include secure closure of desiccators in analytical, preparative and storage workflows where a leak-free, permanently mountable seal is required.
This article is part of Ground-joint glass stoppers, in Stoppers, caps & closures.
Key features
- Pack size: 1 pc
- Storage temperature: Standard
- Material: Borosilicate glass 3.3
- Joint size: NS 24/29
- Type: Wertex safety connection
- EAN: 4032051033146
- Technical Information Sheet:
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Questions about Safety Stopcock NS 24/29 (type Wertex), for safety outlets
What is this article?
Safety Stopcock NS 24/29 (type Wertex), for safety outlets is the article on this page. Luminix Health distributes DWK Life Sciences 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.