Description
PTFE bellows NS 14/23 is a flexible ground-joint connector that unites a male core and a female socket, both in NS 14/23 size, fabricated entirely from PTFE. The corrugated bellows body accommodates angular and axial misalignment between glassware components while maintaining a chemically inert, grease-free seal. Supplied as a single piece with a net weight of 0,021 kg, the unit is well suited to compact distillation bridges, vacuum lines and reaction setups where rigid glass joints would transmit mechanical stress. PTFE construction provides broad resistance to aggressive solvents, acids and bases under typical laboratory temperature conditions. This bellows from manufacturer Witeg is designed for laboratories that require reliable, non-contaminating couplings between NS 14/23 apparatus without intermediate adapters. Direct insertion into matching cones and sockets simplifies assembly of multi-component glass systems. Ideal for organic synthesis, preparative chemistry and analytical sample handling, the PTFE bellows reduces the risk of glass breakage caused by thermal expansion or slight misalignment and supports clean, reusable connections in both routine and advanced workflows.
This article is part of Distillation heads, adapters & columns, in Distillation & extraction glassware.
Key features
- Pack size: 1 pc
- Material: PTFE
- Core joint: NS 14/23
- Socket joint: NS 14/23
- Type: Flexible bellows connector
Recently viewed
You may also like
Browse related categories
Category
Distillation & extraction glassware
Sub-category
Distillation heads, adapters & columns
Catalogue
Brand
Questions about Bellow ST 14/23 PTFE
What is this article?
Bellow ST 14/23 PTFE 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.