Description
DURAN® flat flange lid with centre neck NS 29/32 and nominal diameter DN 100 is a precision cover for large-volume flat flange reaction vessels that serve as practical alternatives to conventional round-bottom flasks. The lid forms the upper half of a two-part vessel system secured by a clamping ring; a gasket or ground-joint grease prevents the ground surfaces from seizing while ensuring a tight seal. Multiple standard ground joints, including the central NS 29/32 neck, allow straightforward combination with dropping funnels, stirrer shafts, condensers and other laboratory components. Manufactured from borosilicate glass 3.3 by Duran/DWK Life Sciences, the component delivers excellent chemical and thermal resistance for demanding preparative work. Flat flange vessels fitted with this lid are well suited to general reactions, distillations, evaporations and drying operations, particularly when solid or highly viscous substances are handled. Robust wall thickness and optimised geometry confer pressure and vacuum resistance, supporting safe operation under elevated temperature conditions with a maximum operating overpressure at 250 °C. Supplied as a single piece, this lid is a reliable choice for chemically and thermally challenging laboratory processes.
This article is part of Reaction vessels & jacketed vessels, in Beakers & flasks.
Key features
- Pack size: 1 pc
- Storage temperature: Standard
- Material: Borosilicate glass 3.3
- Nominal diameter: DN 100
- Centre neck: NS 29/32
- EAN: 4032051030213
- Technical Information Sheet:
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Questions about DURAN® Flat Flange Lid, with centre neck
What is this article?
DURAN® Flat Flange Lid, with centre neck is the article on this page. Luminix Health distributes DWK Life Sciences for laboratory use. It sits in Reaction vessels & jacketed vessels, inside Beakers & flasks, in Matériel de laboratoire.
A reaction vessel is the flask a synthesis actually runs in, sometimes jacketed so a fluid can heat or cool the wall. The joints, the working volume and the jacket connections are the specification. It is not a storage bottle.
A beaker is an open working vessel: easy to pour, poor as a measure. An Erlenmeyer flask has a flat base and a conical wall so a liquid can be swirled without climbing out. A round-bottom flask is for heating under a condenser, because the heat meets a curved wall and the joint at the neck connects to the rest of the glassware. Borosilicate is the glass that survives the temperature change. These forms are listed under ISO laboratory glassware.
Which category should I open next?
The category is Beakers & flasks. The sub-category is Reaction vessels & jacketed vessels. The catalogue is Matériel de laboratoire.
Shelves beside this one are Round-bottom flasks, Beakers, Erlenmeyer flasks, Flat-bottom flasks, Flasks (other) and Beaker & flask 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.