Description
BOLA replacement glass parts NS 45/40 GL 25 are borosilicate glass spare components featuring a ground joint core and GL thread for laboratory stirring closures and associated apparatus. The larger NS 45/40 standard taper joint delivers a secure, leak-resistant connection to matching ground-joint vessels, while the GL 25 thread accepts common laboratory screw caps and threaded fittings. Fabricated from durable borosilicate glass, these parts combine chemical resistance with thermal stability suitable for everyday use in synthesis, process development and general laboratory work. Supplied as a single piece with a net weight of 0,053 kg, each unit serves as a ready-to-install spare that restores the joint-to-thread interface without exchanging complete assemblies. These BOLA glass parts from manufacturer Bohlender support continuous operation of reactors, reaction flasks and mixing equipment where standardised NS 45/40 geometry and GL 25 threading are specified. Clear sizing—NS 45/40 joint with GL 25 thread—facilitates correct selection and interchangeability within existing BOLA stirring systems and comparable laboratory glassware setups that rely on this joint and thread combination.
This article is part of Distillation heads, adapters & columns, in Distillation & extraction glassware.
Key features
- Pack size: 1 pc
- Product type: Replacement glass part for stirring closures
- Material: Borosilicate glass
- Ground joint: NS 45/40
- Thread: GL 25
- Design: Ground joint core with GL thread
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Distillation & extraction glassware
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Distillation heads, adapters & columns
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Questions about BOLA Replacement Glass Parts, NS 45/40 GL 25 Borosilicate glass
What is this article?
BOLA Replacement Glass Parts, NS 45/40 GL 25 Borosilicate glass 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.
How does ordering and shipping work?
Luminix Health distributes this article from the heart of Europe. Delivery across Europe, two to five days when in stock. 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.
