Description
Cylindrical dropping funnel 250:5 ml K+H NS 19/26 with pressure equalisation is a graduated laboratory funnel for controlled liquid addition in synthesis, titration and dosing work. The cylindrical body carries clear graduation marks so volumes can be monitored during transfer, while the integrated pressure-equalisation path keeps internal pressure balanced and prevents vapour lock or irregular flow. Cone and socket joints are standardised NS 19/26 (K+H), ensuring compatibility with common ground-joint glassware trains. A PTFE stopcock plug with threaded stopcock lock provides chemical resistance and secure shut-off; the stopcock bore is 4 mm for reliable delivery of reagents. Offered as a pack of 2 pieces from manufacturer Witeg, this graduated dropping funnel with pressure equalisation supports reproducible organic and analytical workflows where precise, drip-controlled addition is required. The combination of cylindrical geometry, graduation, PTFE stopcock and NS 19/26 joints makes it a practical choice for routine laboratory setups.
This article is part of Dropping funnels, in Funnels.
Key features
- Pack size: 2 pc(s)
- Type: Cylindrical dropping funnel with pressure equalisation
- Capacity: 250:5 ml, graduated
- Joint: cone + socket NS 19/26
- Stopcock: PTFE plug with threaded lock
- Bore: 4 mm
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Questions about Dropping funnel cylindrical 250 : 5ml C+S ST 19/26
What is this article?
Dropping funnel cylindrical 250 : 5ml C+S ST 19/26 is the article on this page. Luminix Health distributes Witeg 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?
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.