Description
Claisen heads in DURAN® glass with core 14/23 are distillation components used to assemble multi-neck setups for laboratory distillations and related glassware trains. The Claisen configuration provides an additional side arm on the still head, enabling simultaneous connection of a distillation thermometer and further apparatus while maintaining ground-joint integrity. This version is specified for distillation thermometers with a 55 mm immersion length and uses a core joint size of 14/23, matching common small-scale organic and general chemistry glassware. Manufactured in DURAN® borosilicate glass by Lenz, the head supports thermal and chemical resistance expected in standard laboratory distillations, fractionations, and extraction-related assemblies. Supplied as 1 pc with a weight of 0,058 kg, it is a compact component for teaching labs, research benches, and preparative work where interchangeable ground-joint glassware is preferred. The piece fits within glass components for distillation and extraction systems that rely on NS 14/23 joints and thermometer ports sized for 55 mm stems.
This article is part of Distillation heads, adapters & columns, in Distillation & extraction glassware.
Key features
- Pack size: 1 pc
- Product type: Claisen head
- Material: DURAN® glass
- Joint size: Core 14/23
- Thermometer fit: Distillation thermometers 55 mm
- Weight: 0,058 kg
Recently viewed
You may also like
Browse related categories
Category
Distillation & extraction glassware
Sub-category
Distillation heads, adapters & columns
Catalogue
Brand
Questions about Claisen heads, DURAN®, core 14/23, for distillation thermometers 55 mm
What is this article?
Claisen heads, DURAN®, core 14/23, for distillation thermometers 55 mm is the article on this page. Luminix Health distributes Lenz 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?
The technical information on this page is the manufacturer's sheet. Read that, not a rewritten specification.
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.

