Description
Stopper with valve stopcock NS 14/23 is a laboratory glassware fitting supplied with an integrated valve stopcock and a lateral olive. It features a standard ground joint size of NS 14/23, making it suitable for connection within ground-joint assemblies, transition pieces and related glass apparatus. The valve stopcock permits controlled opening or closing of the passage, while the side olive provides an additional tubing connection point. With a net weight of 0,019 kg and a gross weight of 0,019 kg, the stopper is delivered as 1 pc. It originates from Germany, specifically the Baden-Württemberg region, and is offered by manufacturer Witeg. This component belongs to the categories of transition pieces, standard ground-joint reducers and screw couplings, supporting precise fluid or gas handling in analytical and preparative laboratory setups that rely on NS 14/23 joints. The compact design allows straightforward integration into existing glassware trains requiring a stoppered valve outlet.
This article is part of Ground-joint glass stoppers, in Stoppers, caps & closures.
Key features
- Pack size: 1 pc
- Joint size: NS 14/23
- Configuration: With valve stopcock and lateral olive
- Country of origin: Germany
Recently viewed
You may also like
Browse related categories
Category
Sub-category
Catalogue
Brand
Questions about Suction tube, with needle valve stopcoc
What is this article?
Suction tube, with needle valve stopcoc 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.

