Description
Small flange screw fitting DN 50 is a connection component for laboratory and vacuum flange systems, intended for both thick-walled and standard flanges. Made from polyoxymethylene (POM), it combines mechanical strength with good dimensional stability for repeated assembly. The DN 50 nominal size matches common small-flange vacuum apparatus used in research and process laboratories. Net weight is 0,195 kg, keeping the fitting compact while remaining robust enough for routine handling. This screw fitting from manufacturer Rettberg offers a practical polymer alternative where metal fittings are less desirable, supporting secure joins on glass and metal flange interfaces. POM construction resists wear under typical laboratory conditions and helps maintain reliable seating on standard and heavy-wall flanges alike. Suitable for vacuum lines, manifolds and related apparatus, the component simplifies configuration of DN 50 small-flange setups. Supplied as a single piece, it integrates directly into existing installations without additional adapters for the stated flange type.
This article is part of Hose connectors, adapters & fittings, in Tubing, hoses & fittings.
Key features
- Pack size: 1 pc
- Material: Polyoxymethylene (POM)
- Nominal size: DN 50
- Product type: Screw fitting
- Technical Information Sheet:
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Questions about Small flange fitting size 50, for thick-walled and standard flanges
What is this article?
Small flange fitting size 50, for thick-walled and standard flanges 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.
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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.