Description
BOLA bellows NS 14/23 – NS 14/23 PTFE with pointed folds provide a flexible PTFE link between matching European standard ground joints in compact laboratory apparatus. The bellows are made entirely of polytetrafluoroethylene (PTFE) and feature pointed folds together with sealing rings on the outside of the ground-joint cone, enabling deflection of up to 120° while preserving joint integrity. Both the socket and the cone follow NS 14/23 (European standard), so the connector integrates directly into NS 14/23 glassware trains used for small-scale synthesis, distillation, or vacuum work. Overall length ranges from a minimum of 82 mm to a maximum of 90 mm, offering limited axial travel alongside the angular flexibility of the folds. Net weight is 0,027 kg (gross weight 0,028 kg). Available as one piece from manufacturer Bohlender, this PTFE bellows is intended for laboratory setups that need chemical inertness and joint mobility without additional elastomeric seals in the wetted path.
This article is part of Distillation heads, adapters & columns, in Distillation & extraction glassware.
Key features
- Pack size: 1 pc
- Material: Polytetrafluoroethylene (PTFE)
- Joint size: NS 14/23 socket and NS 14/23 cone
- Design: Pointed folds with external sealing rings on cone
- Deflection: up to 120°
- Total length: 82–90 mm
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Distillation & extraction glassware
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Questions about BOLA Bellows, NS 14/23 - NS 14/23 PTFE, with sharp folds
What is this article?
BOLA Bellows, NS 14/23 - NS 14/23 PTFE, with sharp folds is the article on this page. Luminix Health distributes Bohlender 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.
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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.