Description
PTFE stirrer plug for standard ground joints NS 45/40 is a laboratory fitting that seals and guides a stirrer shaft in larger ground-joint glassware. Made from chemically resistant PTFE, it matches glass joints 45/40, accepts shafts of Ø 10 mm and has a length of 80 mm. The inert polymer interface supports smooth rotation while limiting chemical interaction during synthesis, scale-up trials or process development. Packaged as a single piece weighing 0,200 kg, the plug works with overhead stirrers and laboratory appliances configured for NS 45/40 connections. From manufacturer Bohlender, this item forms part of the accessories-for-agitators category and enables closed-system stirring without restricting shaft movement. PTFE delivers wide media compatibility for research and quality-control laboratories that depend on robust polymer labware. Its larger joint size and defined dimensions allow secure installation in corresponding glass assemblies, helping maintain sealing performance and shaft alignment throughout everyday stirring tasks.
This article is part of Distillation heads, adapters & columns, in Distillation & extraction glassware.
Key features
- Pack size: 1 pc
- Material: PTFE
- Joint size: NS 45/40
- Shaft diameter: Ø 10 mm
- Length: 80 mm
- Weight: 0,200 kg
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Distillation & extraction glassware
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Questions about PTFE stirrer plug for standard ground-, glass joints 45/40, for Ø 10 mm, L 80 mm
What is this article?
PTFE stirrer plug for standard ground-, glass joints 45/40, for Ø 10 mm, L 80 mm 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?
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.

