Description
Vacuum connection adapter NS 45/40 is a precision intermediate piece for laboratory glassware, combining a standard ground joint NS 45/40 with a GL 14 thread, screw connection cap and polypropylene olive of 8,6 mm. Manufactured from borosilicate glass 3.3, it provides a secure and chemically resistant vacuum interface for distillation, filtration and manifold setups. The adapter from manufacturer Rettberg supports reliable hose attachment via the PP olive while the ground joint ensures a tight seal with matching apparatus. Borosilicate glass 3.3 delivers low thermal expansion, high mechanical strength and excellent resistance to common laboratory reagents and thermal shock. With a net weight of 0,134 kg and supplied as 1 pc, the component integrates easily into existing glass assemblies. It is well suited to vacuum lines, rotary evaporator accessories and general laboratory vacuum connections where a durable intermediate piece is required. The combination of precision joint and practical screw-cap olive makes assembly straightforward and leak-resistant under typical laboratory vacuum conditions.
This article is part of Hose connectors, adapters & fittings, in Tubing, hoses & fittings.
Key features
- Pack size: 1 pc
- Joint size: NS 45/40
- Material: Borosilicate glass 3.3
- Thread: GL 14
- Connection: Screw cap with PP olive 8,6 mm
- Product type: Adapter
- Technical Information Sheet:
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Questions about Intermeditate piece, vacuum connection
What is this article?
Intermeditate piece, vacuum connection 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.