Description
Dropping funnel with PTFE-plug valve provides controlled liquid addition for laboratory synthesis and sample preparation. This 250 ml version is made from DURAN® glass and carries cylindrical graduation so operators can monitor transferred volumes with ease. A PTFE-plug valve enables dependable open–close action and adjustable flow when reagents must be introduced gradually into flasks or other receivers. Offered as 1 pc and weighing 0,420 kg, the funnel is intended for everyday wet-lab tasks that demand chemical resistance at the valve and clear scale readability on a cylindrical body. DURAN® construction supports thermal and chemical robustness typical of quality laboratory glassware, while the PTFE plug helps maintain smooth operation with many common solvents and aqueous solutions. Mid-scale 250 ml capacity bridges smaller analytical additions and larger preparative feeds. This model from manufacturer Lenz fits standard dropping-funnel applications in research and teaching laboratories. Cylindrical graduation, PTFE-plug shut-off and the 250 ml working volume together give a practical tool for measured, dropwise or continuous delivery without added complexity beyond the stated specification.
This article belongs on Dropping funnels, in Funnels.
Key features
- Pack size: 1 pc
- Product type: Dropping funnel
- Capacity: 250 ml
- Valve: PTFE-plug valve
- Glass type: DURAN®
- Graduation: cylindrical
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Questions about Dropping funnel, with PTFE-plug valve, DURAN®, graduation cylindrical, 250 ml
What is this article?
Dropping funnel, with PTFE-plug valve, DURAN®, graduation cylindrical, 250 ml is the article on this page. Luminix Health distributes Lenz for laboratory use. It sits in Dropping funnels, inside Funnels, in Labware.
A dropping funnel adds a liquid slowly into a closed reaction through a stopcock and usually a ground joint. A pressure-equalising arm keeps the funnel from air-locking. The joint size and the volume are the specification.
A funnel guides a liquid or a powder into a narrower mouth. A filter funnel holds a paper. A Büchner funnel is the flat perforated plate used with vacuum. A separating funnel has a stopcock so two liquid layers can be run off one at a time. A dropping funnel adds a reagent slowly into a reaction. The bore and the stopcock are the parts that matter. This glassware is listed under ISO laboratory glassware.
Which category should I open next?
The category is Funnels. The sub-category is Dropping funnels. The catalogue is Labware.
Shelves beside this one are Funnels (plastic, glass & steel), Büchner & filter funnels, Separating funnels and Powder funnels.
What should I check before I order?
The technical information on this page is the manufacturer's sheet. Read that, not a rewritten specification.
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.