Description
Spherical joint socket KS 64/40 is a Form A laboratory glass component designed for robust spherical ground-joint connections in scientific glassware assemblies. Made from borosilicate glass 3.3, the socket delivers superior chemical inertness and thermal stability required for demanding preparative and analytical work. Its KS 64/40 joint size ensures accurate mating with matching spherical joint balls, while the 170 mm overall length facilitates integration into larger apparatus. The net weight of 0,155 kg reflects a solid yet manageable construction suitable for frequent laboratory use. This joint-connection item is produced in Germany by manufacturer Rettberg and carries the Rettberg ® registered trademark. Typical applications include large-scale distillation systems, vacuum transfer lines, reactor adapters and any configuration where spherical joints provide necessary angular adjustment and reliable sealing. Borosilicate glass 3.3 maintains dimensional accuracy and mechanical strength even after repeated thermal cycles and exposure to aggressive reagents, guaranteeing consistent performance over extended service periods.
This article belongs on Ground-joint glassware (other), in Distillation & extraction glassware.
Key features
- Pack size: 1 pc
- Joint size: KS 64/40
- Length: 170 mm
- Material: Borosilicate glass 3.3
- Form: A
- Technical Information Sheet:
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Distillation & extraction glassware
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Ground-joint glassware (other)
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Questions about Spherical joint cup size 64/40
What is this article?
Spherical joint cup size 64/40 is the article on this page. Luminix Health distributes Rettberg for laboratory use. It sits in Ground-joint glassware (other), inside Distillation & extraction glassware, in Matériel de laboratoire.
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 Distillation & extraction glassware. The sub-category is Ground-joint glassware (other). The catalogue is Matériel de laboratoire.
Shelves beside this one are Distillation heads, adapters & columns, Condensers and Soxhlet & extraction apparatus.
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.