Description
Long ground joint cone extension NS 29/42 is a laboratory glassware element intended for modular apparatus built on conical standard ground joints. This NS long cone with extension is specified in the PRECISO line for joint size NS 29/42, with an outer diameter of 26 mm, a length of 150 mm and a wall thickness of 2,0 mm. The extended cone geometry aids flexible layout of flasks, condensers and connecting pieces while retaining a dependable ground-glass seal. Pack size is 10 pc(s), and the net weight per piece is 0,049 kg. These components from manufacturer Witeg sit in the standard ground-joint category used throughout chemical and analytical laboratories. NS 29/42 is a larger common joint size, making the extension suitable for higher-capacity or more robust assemblies that still require interchangeability with matching sockets. Defined diameter, length and wall thickness support repeatable fits and stable connections in multi-piece glass systems where dimensional consistency matters.
This article is part of Distillation heads, adapters & columns, in Distillation & extraction glassware.
Key features
- Pack size: 10 pc(s)
- Joint size: NS 29/42
- Series: PRECISO
- Outer diameter: 26 mm
- Length: 150 mm
- Wall thickness: 2,0 mm
Recently viewed
You may also like
Browse related categories
Category
Distillation & extraction glassware
Sub-category
Distillation heads, adapters & columns
Catalogue
Brand
Questions about Cones, full length ST 29/42
What is this article?
Cones, full length ST 29/42 is the article on this page. Luminix Health distributes Witeg for laboratory use. It sits in Distillation heads, adapters & columns, inside Distillation & extraction glassware, in Labware.
A still head, an adapter or a column is the glass between the boiling flask and the condenser. A Vigreux or packed column gives the vapour a surface so a closer-boiling mixture can separate. The joint sizes at both ends have to match the flask and the condenser.
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 Distillation heads, adapters & columns. The catalogue is Labware.
Shelves beside this one are Condensers, Ground-joint glassware (other) 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.