Description
DURAN® flat flange lid DN 120 is a multi-neck laboratory glass lid designed for flat flange vessels in distillation, reaction, and extraction work. Four necks with standard ground joints (NS) are provided: a main centre neck MH NS 29/32, two inclined side necks SH NS 29/32, and one vertical neck NS 14/23. The arrangement supports concurrent fitting of condensers, dropping funnels, thermometers, or stirrer guides on one vessel head. The lid is supplied as 1 pc for use with matching DN 120 flat flange bodies in preparative laboratory assemblies. From manufacturer DWK Life Sciences within the DURAN® range, this component serves modular glass systems where multi-port access is required. At a unit weight of 0,947 kg, it is suited to secure flange connections on medium-scale apparatus. Research and process laboratories benefit from the combination of centre, inclined, and vertical NS necks when configuring flexible reaction or separation setups without changing the vessel head design.
This article is part of Reaction vessels & jacketed vessels, in Beakers & flasks.
Key features
- Pack size: 1 pc
- Product type: Flat flange lid
- Brand: DURAN®
- Flange size: DN 120
- Centre neck: MH NS 29/32
- EAN: 4032051030046
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Questions about Flat flange lid DURAN® 4 necks with NS centre neck, 1 vertical
What is this article?
Flat flange lid DURAN® 4 necks with NS centre neck, 1 vertical 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 Labware.
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 Labware.
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?
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.

