Description
Spherical joint ball KS40/25 is a laboratory glassware element for KS-type spherical joint connections in chemical and research apparatus. Made from DURAN tubing, it is sized KS 40/25 with dimensions of 30 x 150 x 2,0 mm and conforms to DIN 12264/1244. The spherical ground ball form permits angular freedom during assembly while enabling a secure, vacuum-capable seal with the corresponding socket. Offered as one piece with a net weight of 0,074 kg, the component is practical for constructing, extending or servicing glass setups that rely on standardised spherical joints. It is produced by manufacturer Witeg for everyday laboratory use where robust borosilicate joints are needed. Typical applications include distillation systems, reaction trains and vacuum apparatus in which movable yet reliable glass-to-glass couplings improve handling and alignment. DURAN glass delivers the chemical resistance and thermal stability expected in routine laboratory work. This KS40/25 ball fits existing KS inventories and supports clean, demountable connections without rigid geometric constraints on the surrounding glassware.
This article is part of Ground-joint glassware (other), in Distillation & extraction glassware.
Key features
- Pack size: 1 pc
- Joint size: KS40/25
- Dimensions: 30 x 150 x 2,0 mm
- Material: DURAN tubing
- Standard: DIN 12264/1244
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Distillation & extraction glassware
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Ground-joint glassware (other)
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Questions about Spherical joints S 40/25
What is this article?
Spherical joints S 40/25 is the article on this page. Luminix Health distributes Witeg for laboratory use. It sits in Ground-joint glassware (other), inside Distillation & extraction glassware, in Labware.
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 Labware.
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.