Description
PTFE seal for cones and sockets NS 14,5/23 provides a reliable solution for connecting standard ground glass components in laboratory settings. This PTFE-based ground joint seal prevents seizing between cores and sleeves while establishing a gas- and liquid-tight barrier. The integrated practical knurled grip enables effortless separation of glass ground joint connections, improving handling efficiency. Vacuum-tight performance is achieved without any sealing grease, making it suitable for clean and sensitive applications. Available in a pack size of 1 pc and featuring a net weight of 0,002 kg, the seal is designed for NS 14,5/23 joints. Laboratory professionals benefit from its chemical inertness and durability when assembling apparatus for reactions, extractions or vacuum work. Produced by manufacturer Rettberg, this accessory originates from Germany and meets the needs of precise glassware systems. It supports contamination-free joints and simplifies the maintenance of multi-piece glass setups in research and quality control environments. Its robust construction ensures repeated use across various experimental protocols without compromising seal integrity.
This article is part of Lids & seals, in Stoppers, caps & closures.
Key features
- Pack size: 1 pc
- Material: PTFE
- Joint size: NS 14,5/23
- Product type: Ground joint seal
- Country of origin: Germany
- Technical Information Sheet:
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Questions about PTFE-seal for cones and sockets NS 14,5
What is this article?
PTFE-seal for cones and sockets NS 14,5 is the article on this page. Luminix Health distributes Rettberg for laboratory use. It sits in Lids & seals, inside Stoppers, caps & closures, in Labware.
Lids and seals are the covers of dishes, jars and tanks: a snap lid, a sealing film, a gasket. The seal is doing the work. A lid that only rests on the rim does not contain a volatile liquid.
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 Lids & seals. The catalogue is Labware.
Shelves beside this one are Screw caps & closures, Rubber & silicone stoppers, Ground-joint glass stoppers 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.