Description
DURAN® adapter in stopper form with socket NS 19/26 and cone NS 29/32 provides a compact glass transition for joining laboratory components that have different standard ground joint sizes. Made of borosilicate glass 3.3, the piece reduces from a smaller socket to a larger cone while occupying very little space thanks to its stopper-like geometry. This design is particularly advantageous in dense apparatus arrangements such as distillation columns, multi-neck reactors or vacuum manifolds where conventional adapters would create unwanted bulk. The single-piece unit has a net weight of 0,02 kg and delivers the chemical durability and thermal performance characteristic of high-quality laboratory glass. Offered by manufacturer Duran/DWK Life Sciences, the adapter is intended for reliable connection of glassware parts with mismatched Normschliff dimensions. Its compact reduction capability and secure ground-joint fit make it a practical choice for modular systems used in research, analytical chemistry and preparative work that demand both space efficiency and dependable sealing performance.
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
- Socket: NS 19/26
- Cone: NS 29/32
- EAN: 4032051060579
Recently viewed
You may also like
Browse related categories
Category
Sub-category
Catalogue
Brand
Questions about DURAN® Adapter, stopper type
What is this article?
DURAN® Adapter, stopper type 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.