Description
BOLA grooved sleeves NS 71/51 PTFE are ground joint sleeves manufactured from polytetrafluoroethylene (PTFE) with sealing rings on the outside. The design has no protruding grip collar, so ground joint clamps can be used without interference, and the sleeves are suitable for vacuum applications down to 0,1 mbar. Robust construction supports continuous laboratory use, while the accessible sealing rings are easy to clean. Dimensions follow European standard size NS 71/51. Each unit is supplied as 1 pc with a net weight of 0,0028 kg and a gross weight of 0,006 kg. These PTFE sleeves from manufacturer Bohlender provide a practical sealing interface for ground-joint glassware in chemical and analytical work where clamp compatibility and vacuum-tight performance matter. The fluoropolymer body offers the chemical resistance expected of PTFE laboratory fittings and fits standard NS 71/51 joints used across European glassware systems.
This article is part of Distillation heads, adapters & columns, in Distillation & extraction glassware.
Key features
- Pack size: 1 pc
- Product type: Grooved ground joint sleeve
- Material: Polytetrafluoroethylene (PTFE)
- Joint size: NS 71/51 (European standard)
- Vacuum suitability: down to 0,1 mbar
- Design: External sealing rings, no protruding grip collar
- Technical Information Sheet:
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Questions about BOLA Sleeves with Ribs, NS 71/51 PTFE
What is this article?
BOLA Sleeves with Ribs, NS 71/51 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.