Description
Hoffmann pinchcock 40 mm is a laboratory hose clamp for controlled restriction and temporary closure of flexible tubing in analytical and preparative setups. Constructed from nickel-plated brass and fitted with a flap mechanism, it provides reliable mechanical flow interruption without disconnecting lines. The 40 mm format suits common laboratory tubing diameters used in chemistry, biology, and teaching environments. At a net weight of 0,056 kg, the compact unit is easy to position and operate by hand on the bench. Typical uses include hose-clamping duties wherever temporary flow control is needed during sampling, rinsing, or reagent transfer. This Hoffmann-style pinchcock from manufacturer Usbeck combines durable metal construction with a practical flap for clear open and closed positioning. Nickel plating supports everyday laboratory handling while keeping a clean working surface. Supplied as one piece, the clamp integrates readily into existing tubing assemblies and supports routine workflows that rely on simple, tool-free mechanical control of liquid or gas lines in general laboratory practice.
This article is part of Stopcocks & valves, in Tubing, hoses & fittings.
Key features
- Pack size: 1 pc(s)
- Material: Nickel-plated brass
- Design: With flap
- Size: 40 mm
- Type: Hoffmann pinchcock
- Technical Information Sheet:
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Questions about Tubing Clamp Hoffmann 40 mm
What is this article?
Tubing Clamp Hoffmann 40 mm is the article on this page. Luminix Health distributes Usbeck for laboratory use. It sits in Stopcocks & valves, inside Tubing, hoses & fittings, in Matériel de laboratoire.
A stopcock opens and closes a line, or directs it between ports. Glass stopcocks have a ground plug that needs grease or a PTFE key. The bore decides the flow. A two-way and a three-way key are different parts.
Tubing is how a liquid or a gas moves between two vessels without being poured. Silicone stays flexible and survives repeated autoclaving. PTFE resists almost every solvent and is stiff. PVC is the ordinary flexible line for water and for mild aqueous work. The fitting, not the tube, is what usually leaks: the barb, the thread and the stopcock have to match the tube bore. Glass and plastic apparatus around these lines is indexed under ISO laboratory ware.
Which category should I open next?
The category is Tubing, hoses & fittings. The sub-category is Stopcocks & valves. The catalogue is Matériel de laboratoire.
Shelves beside this one are Hose connectors, adapters & fittings, PVC, PTFE & other tubing, Silicone tubing and Tubing 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.