Description
Chain clamp, aluminium, DN 25 is a laboratory fastening accessory sized for DN 25 flange connections on vacuum and process equipment. The aluminium body keeps the clamp light while delivering a firm mechanical hold for standard laboratory couplings used on pumps, traps, manifolds and instrument lines. Packed as one piece, it serves as a practical spare or replacement component for day-to-day laboratory maintenance and system assembly. Aluminium construction aids handling and repeated opening and closing of joints without excessive weight on supporting apparatus. This chain clamp from manufacturer WELCH belongs to the accessories and spare-parts range for laboratory devices, where consistent DN 25 fastening is needed during installation, service or reconfiguration of vacuum paths. The clearly specified nominal diameter supports inventory standardisation across medium-size laboratory flanges. Laboratories can integrate the clamp into existing DN 25 setups as a dedicated aluminium chain-style fastener matching the stated specification, helping maintain organised stocks of connection hardware for professional laboratory environments.
This article is part of Clamps & bossheads, in Stands, clamps & racks.
Key features
- Pack size: 1 pc
- Product type: Chain clamp
- Material: Aluminium
- Nominal size: DN 25
- Form: Single piece
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Questions about Chain Clamp, Aluminium, DN 25
What is this article?
Chain Clamp, Aluminium, DN 25 is the article on this page. Luminix Health distributes WELCH 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.

