Description
Three-point clamp DN 25 is a laboratory clamp designed for firm, even fastening of glassware and apparatus fitted with DN 25 connections. Made from aluminium and fitted with stainless steel screws, it delivers a reliable three-point hold suited to cold-trap systems, vacuum manifolds and larger glass joints. The aluminium construction yields a net weight of only 0,121 kg, combining low mass with mechanical stability for convenient handling during apparatus assembly. Stainless steel screws provide lasting clamping force and resistance to laboratory atmospheres at the fastening points. This clamp supports secure joint retention in cooling-trap setups, distillation lines and freeze-drying configurations that employ DN 25 flanges. Offered as a single unit from manufacturer Rettberg and bearing the Rettberg® trademark, it is intended for everyday laboratory clamping tasks. The three-point geometry spreads contact pressure uniformly around the joint, helping preserve alignment and minimise movement under vacuum or temperature changes. Its lightweight yet sturdy aluminium body makes the clamp a practical choice for research, process-development and quality-control laboratories working with cold traps and related glass apparatus.
This article is part of Clamps & bossheads, in Stands, clamps & racks.
Key features
- Pack size: 1 pc
- Material: Aluminium
- Product type: Laboratory clamp
- Connection size: DN 25
- Country of origin: Germany
- Technical Information Sheet:
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Questions about Three-point clamp/Alu DN 25
What is this article?
Three-point clamp/Alu DN 25 is the article on this page. Luminix Health distributes Rettberg for laboratory use. It sits in Clamps & bossheads, inside Stands, clamps & racks, in Matériel de laboratoire.
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 Matériel de laboratoire.
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.