Description
DURAN® Spherical Joint Ball S 35/25 is a precision glass component made from borosilicate glass 3.3 designed to form flexible spherical ground-joint connections within laboratory glassware systems. Produced to DIN 12244 and DIN 12264, this imperial-size ball permits angular deflection of up to 15° according to joint dimensions, with reduced tightness expected beyond 5°. The nominal size indicates the nominal diameter of the spherical joint. Offered as one piece weighing 0,052 kg net and 0,057 kg gross, the part is intended for incorporation into glass apparatus and is suitable for vacuum service. Ground-joint grease or PTFE sleeves are recommended for sealing; spherical joint clamps fitted with locking screws ensure secure assembly. Greater flexibility of the spherical geometry facilitates easier disconnection. This non-self-supporting glass article from manufacturer Duran/DWK Life Sciences supports construction of articulated laboratory set-ups requiring reliable vacuum-compatible joints with limited movement capability.
This article is part of Ground-joint glassware (other), in Distillation & extraction glassware.
Key features
- Pack size: 1 pc
- Storage temperature: Standard
- Material: Borosilicate glass 3.3
- Nominal size: S 35/25
- Standard: DIN 12244 and DIN 12264
- EAN: 4032051051782
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Category
Distillation & extraction glassware
Sub-category
Ground-joint glassware (other)
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Questions about DURAN® Spherical Joint, ball inches size
What is this article?
DURAN® Spherical Joint, ball inches size is the article on this page. Luminix Health distributes DWK Life Sciences 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.