Description
Joint clamps made of PTFE, 14/23 are laboratory accessories for securing standard ground-glass joints of size 14/23 in glassware assemblies. Each clamp is produced from pure PTFE and incorporates fully encapsulated steel springs, combining chemical inertness with dependable mechanical hold. Because the steel springs are completely jacketed, metal does not contact the joint surface, which helps protect glassware during routine assembly and disassembly. The pure PTFE body remains chemically inert and is suitable for use at temperatures up to 280 °C, supporting heated setups as well as ambient work. Offered as a single piece with a net weight of 0,012 kg, this clamp from manufacturer Labbox fits everyday laboratory tasks such as distillation, reflux, and general organic synthesis where reliable joint retention is required. The design suits environments in which aggressive reagents would attack exposed metal hardware, while the PTFE construction keeps the clamp easy to fit and remove. As part of laboratory equipment accessories, these PTFE joint clamps provide a practical fastening option for conical ground joints of the 14/23 standard without introducing reactive metal surfaces into the assembly.
This article is part of Distillation heads, adapters & columns, in Distillation & extraction glassware.
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Questions about Conical head clip, PTFE, 14/23
What is this article?
Conical head clip, PTFE, 14/23 is the article on this page. Luminix Health distributes Labbox for laboratory use. It sits in Clamps & bossheads, inside Stands, clamps & racks, in Labware.
A bosshead grips the rod. A clamp grips the flask or the condenser, usually through two jaws with cork or vinyl faces. Three-finger and two-finger clamps hold different shapes. The jaw opening is the specification.
A stand, a clamp and a rack hold something still so the hands can do the work. A bosshead locks a clamp to a rod. A test-tube rack keeps tubes upright and in an order the operator can read back. The failure is almost always mechanical: the clamp slips, or the rack does not match the tube diameter. The glass they support is indexed under ISO laboratory glassware.
Which category should I open next?
The category is Stands, clamps & racks. The sub-category is Clamps & bossheads. The catalogue is Labware.
Shelves beside this one are Test tube racks, Stands, rods & bases and Stand & rack accessories.
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.

