Description
Spherical joint ball KS64/40 is a laboratory glassware element intended for spherical ground-joint couplings in chemical and process apparatus. Fabricated from DURAN tubing to the KS 64/40 specification, it measures 48 x 150 x 3,2 mm and provides a larger sealing surface than smaller KS sizes. The ball form pairs with a corresponding spherical socket to deliver a flexible, leak-resistant connection that tolerates minor angular offset—useful in distillation columns, multi-neck reactors and modular glass systems where thermal expansion or vibration must be accommodated. Delivered as one piece with a net weight of 0,174 kg, the component is ready for integration into DURAN-compatible assemblies. This spherical joint ball from Witeg supports routine laboratory construction, educational glassware kits and pilot installations that depend on standardised spherical joints. The generous wall thickness contributes to mechanical stability during clamping and repeated use, while the clear glass permits direct observation of flow or reaction progress inside connected apparatus.
This article is part of Ground-joint glassware (other), in Distillation & extraction glassware.
Key features
- Pack size: 1 pc
- Joint size: KS 64/40
- Dimensions: 48 x 150 x 3,2 mm
- Material: DURAN tubing
- Country of origin: Germany
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Category
Distillation & extraction glassware
Sub-category
Ground-joint glassware (other)
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Questions about Spherical joints S 64/40
What is this article?
Spherical joints S 64/40 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.