Description
Screw clamp type HOFFMANN, B=20 mm is a robust laboratory hose clamp designed for adjustable flow control on flexible tubing. Made from nickel-plated brass and equipped with a flap, the classic Hoffmann configuration provides firm, even compression while protecting hose integrity. The 20 mm B dimension fits a wider selection of laboratory tubing sizes, and the 23,0 g weight keeps the clamp compact and easy to handle. Supplied as a single piece, this model from manufacturer Bochem is well suited to regulating liquid or gas streams in chemical, analytical and process-support applications. Nickel plating enhances corrosion resistance for reliable service under standard laboratory conditions. The screw mechanism allows fine adjustment of flow rate, and the flap simplifies mounting and repositioning. Ideal for temporary isolation, metering or shut-off duties on the bench, in apparatus trains or within fume-hood setups, the clamp delivers consistent mechanical performance for everyday tubing management in research and quality-control environments.
This article is part of PVC, PTFE & other tubing, in Tubing, hoses & fittings.
Key features
- Pack size: 1 pc
- Type: Hoffmann screw clamp
- Jaw width B: 20 mm
- Material: Nickel-plated brass
- Design: With flap
- Weight: 23,0 g
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Questions about Pinch cock type HOFFMANN, W=20mm
What is this article?
Pinch cock type HOFFMANN, W=20mm is the article on this page. Luminix Health distributes Bochem for laboratory use. It sits in PVC, PTFE & other tubing, inside Tubing, hoses & fittings, in Labware.
PVC is the flexible everyday tube for water and mild aqueous liquids. PTFE is the stiff, almost inert tube for solvents. Other polymers sit between them. The bore, the wall and the chemical resistance are the specification, and the tube is cut to length.
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 PVC, PTFE & other tubing. The catalogue is Labware.
Shelves beside this one are Hose connectors, adapters & fittings, Stopcocks & valves, 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.