Description
Glass flange, heavy-wall, DN 50 is a sturdy small flange made from borosilicate glass 3.3, designed for reliable connections in laboratory and technical glass apparatus. The heavy-wall construction delivers enhanced mechanical stability while preserving the thermal-shock resistance and chemical inertness of borosilicate 3.3. This DN 50 component serves as a connecting element in glass systems requiring secure joints under vacuum or moderate pressure. Offered by manufacturer Rettberg under the Rettberg® trademark, the flange is supplied as a single piece with a net weight of 0,215 kg. It is well suited for chemical laboratories, research installations and pilot-scale glassware where durable DN 50 flange interfaces are needed. The material ensures broad compatibility with common laboratory chemicals and temperature variations, making the flange a practical choice for building or maintaining borosilicate glass assemblies that demand long-term reliability and dimensional consistency.
This article is part of Hose connectors, adapters & fittings, in Tubing, hoses & fittings.
Key features
- Pack size: 1 pc
- Nominal size: DN 50
- Product type: Small flange
- Material: Borosilicate glass 3.3
- Wall type: Heavy-wall
- Technical Information Sheet:
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Questions about Glass flange, thick-walled, DN 50
What is this article?
Glass flange, thick-walled, DN 50 is the article on this page. Luminix Health distributes Rettberg for laboratory use. It sits in Hose connectors, adapters & fittings, inside Tubing, hoses & fittings, in Labware.
A hose connector or adapter joins two lines, or steps one bore down to another. The barb diameter has to match the tube, and the thread has to match the stopcock or the bottle. Most leaks are a mismatch here, not a hole in the tube.
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 Hose connectors, adapters & fittings. The catalogue is Labware.
Shelves beside this one are PVC, PTFE & other tubing, 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.