Beschrijving
Spherical joint socket KS 35/20 is a grease-free, flexible laboratory glass joint component engineered for spherical ground-joint assemblies. Fabricated from borosilicate glass 3.3, this Rotulex-system socket provides a dependable KS 35/20 interface without grease, helping to minimise contamination and ease cleaning. The spherical form permits slight angular adjustment while preserving seal integrity, making it suitable for vacuum apparatus, distillation trains and complex multi-piece glassware. Delivered as a single piece with a net weight of 0,051 kg, the socket is part of the Rotulex series from manufacturer Rettberg and is designed to mate with the corresponding ball joint. Borosilicate glass 3.3 combines excellent thermal-shock resistance with wide chemical compatibility, supporting organic synthesis, preparative chemistry and routine laboratory work. The grease-free construction is advantageous wherever residue-free joints or frequent reconfiguration are needed. This KS 35/20 spherical joint socket supplies a robust, chemically resistant connection for research and industrial laboratories that require flexible spherical joint technology.
This article is part of Ground-joint glassware (other), in Distillation & extraction glassware.
Key features
- Pack size: 1 pc
- Joint size: KS 35/20
- Material: Borosilicate glass 3.3
- System: Rotulex
- Connection: Grease-free, flexible
- Technical Information Sheet:
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Questions about Spherical joint cup size 35/20, for grease-free ,flexible connection,
What is this article?
Spherical joint cup size 35/20, for grease-free ,flexible connection, is the article on this page. Luminix Health distributes Rettberg for laboratory use. It sits in Slijpstukglaswerk (overig), inside Destillatie- & extractieglaswerk, in Labmateriaal.
This is ground-joint glassware that is not a head, a condenser or a Soxhlet: receivers, blank joints, odd adapters. A ground joint is named by the wide end and the length, such as 29/32. Mismatched joints do not seal, even with grease.
Distillation separates liquids by boiling point. A condenser turns the vapour back into liquid: Liebig, coil and cold-finger shapes differ in how much cooling surface they offer. A still head and a column sit between the flask and the condenser. A Soxhlet extractor washes a solid again and again with the same solvent. Ground joints have a standard size, and the joint, not the flask, is what has to match. The pieces are indexed under ISO laboratory glassware.
Which category should I open next?
The category is Destillatie- & extractieglaswerk. The sub-category is Slijpstukglaswerk (overig). The catalogue is Labmateriaal.
Shelves beside this one are Destillatiekoppen, adapters & kolommen, Koelers and Soxhlet- & extractieapparatuur.
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.