Description
Stopper with NS stopcock NS 29/32 is a laboratory glassware component featuring a standard ground-joint core, integrated stopcock and straight olive for secure, controllable connections in chemical glass apparatus. The NS 29/32 taper provides a robust seal for larger flasks, condensers and adapters used in distillation, vacuum transfer and reaction setups, while the stopcock enables precise regulation of liquid or gas streams and the straight olive accepts tubing for flexible routing. Supplied as a single piece with a net weight of 0,058 kg, the stopper fits modular systems that demand interchangeable ground-joint fittings. From manufacturer Witeg, this item supports efficient assembly of multi-component glass trains in research, quality-control and teaching laboratories. Its compact form combines sealing integrity with flow control in one element, reducing the need for separate adapters and valves. The design is particularly useful in transition and reducing configurations where reliable taper geometry and an accessible olive connection streamline experimental workflows without compromising leak-tight performance under standard laboratory conditions.
This article is part of Ground-joint glass stoppers, in Stoppers, caps & closures.
Key features
- Pack size: 1 pc
- Joint size: NS 29/32
- Configuration: With NS stopcock and straight olive
- Core type: NS 29/32
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Questions about Suction tube, with ST-stopcock, straig
What is this article?
Suction tube, with ST-stopcock, straig is the article on this page. Luminix Health distributes Witeg 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.