Description
Screw clamp type HOFFMANN with a width of 70 mm in heavy-duty version provides secure and adjustable control of flexible tubing in laboratory fluid systems. Equipped with a flap and constructed from nickel-plated brass, the clamp delivers durable clamping force while resisting corrosion in typical bench environments. The Hoffmann-style screw mechanism permits precise compression of hoses, allowing fine regulation of liquid or gas flow without damaging the tubing. Weighing 140 g, the robust heavy-duty build ensures reliable performance during continuous or repeated use on filtration lines, vacuum setups and general transfer assemblies. This screw clamp from manufacturer Bochem is supplied as a single unit and suits chemistry, biology and technical laboratories that require dependable hose regulation. The 70 mm width accommodates a practical range of common laboratory tubing diameters. Smooth screw action and the protective nickel plating support long service life even under frequent adjustment. Whether used to throttle reagent feeds, isolate sections of a manifold or secure drainage lines, the heavy-duty Hoffmann clamp offers straightforward mechanical control and consistent everyday utility at the laboratory bench.
This article is part of Stopcocks & valves, in Tubing, hoses & fittings.
Key features
- Pack size: 1 pc
- Type: HOFFMANN
- Width: 70 mm
- Version: Heavy-duty
- Material: Nickel-plated brass
- Design: With flap
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Questions about Pinch cock type HOFFMANN, W=70mm, heavy, type
What is this article?
Pinch cock type HOFFMANN, W=70mm, heavy, type is the article on this page. Luminix Health distributes Bochem for laboratory use. It sits in Stopcocks & valves, inside Tubing, hoses & fittings, in Labware.
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 Labware.
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.