Beschreibung
Spherical joint ball KS 19/9 is a Form B spherical ground joint component made from borosilicate glass 3.3 for laboratory glassware systems that require angular flexibility. It features the KS 19/9 joint size and an overall length of 120 mm, providing a larger connection interface suitable for medium-scale apparatus. The net weight of 0,014 kg balances durability with ease of handling during assembly. Borosilicate glass 3.3 supplies the thermal and chemical resistance expected in distillation, vacuum and reaction applications. Offered as a single piece, the ball mates with matching spherical sockets to create adjustable yet secure joints. Produced by Rettberg, this KS 19/9 component supports standardised interchangeability within spherical-joint glassware and contributes to reliable sealing performance under typical laboratory conditions. Its precise dimensions and robust material make it a practical building block for constructing or maintaining modular glass assemblies in research and process environments.
This article belongs on Ground-joint glassware (other), in Distillation & extraction glassware.
Key features
- Pack size: 1 pc
- Joint size: KS 19/9
- Form: B
- Material: Borosilicate glass 3.3
- Length: 120 mm
- 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 ball size 19/9
What is this article?
Spherical joint ball size 19/9 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 Laborbedarf.
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 Laborbedarf.
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.