Description
BOLA grooved sleeves, NS 40/38 PTFE are laboratory ground-joint sleeves produced from polytetrafluoroethylene (PTFE) with external sealing rings. They correspond to the European standard joint size NS 40/38 and are used to seal conical glass joints in synthesis, distillation and analytical glassware. Without a protruding grip collar, the sleeves allow unrestricted fitting of ground-joint clamps and are suitable for vacuum service down to 0,1 mbar. Robust construction supports continuous laboratory duty, while the outer sealing rings remain easy to reach and clean. These BOLA sleeves from manufacturer Bohlender come in packs of 5 pieces and integrate into standard joint assemblies with minimal added mass. Net weight is 0,0008 kg. PTFE contributes chemical inertness and lasting performance under routine lab conditions, making the sleeves a dependable choice for vacuum-tight and everyday conical ground-joint connections without obstructing clamps or bulk hardware.
This article is part of Distillation heads, adapters & columns, in Distillation & extraction glassware.
Key features
- Pack size: 5 pc(s)
- Joint size: NS 40/38
- Material: Polytetrafluoroethylene (PTFE)
- Vacuum rating: up to 0,1 mbar
- Design: External sealing rings, no protruding collar
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Questions about BOLA Sleeves with Ribs, NS 40/38 PTFE
What is this article?
BOLA Sleeves with Ribs, NS 40/38 PTFE is the article on this page. Luminix Health distributes Bohlender for laboratory use. It sits in Grease, boiling stones & sealants, inside Tools & accessories, in Labware.
Grease seals a ground joint. Boiling stones give a liquid a place to start boiling so it does not bump. A sealant does the same job as grease when grease would contaminate the product. They are small, and they decide whether a joint weeps.
The small tools of the bench are what the hand actually holds: a spatula for a powder, forceps for an object that must stay clean, a brush for a narrow neck, a desiccator when a dried sample must not take up water again. None of these reads a measurement. They keep the measurement possible. The apparatus around them is listed under ISO laboratory apparatus.
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The category is Tools & accessories. The sub-category is Grease, boiling stones & sealants. The catalogue is Labware.
Shelves beside this one are Spatulas & spoons, Other lab tools & accessories, Lab furniture, trolleys & storage, Tweezers & forceps, Scissors, scalpels & dissecting instruments, Weighing boats, dishes & paper, Desiccators & desiccant, Timers, stopwatches & calculators, Stationery, books & lab notebooks, Brushes & cleaning tools, Stirring rods, spreaders & glass tools, Cutting & sealing tools and Gas handling & burners accessories.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.