Description
BOLA grooved sleeves NS 85/55 PTFE are ground joint sleeves made from polytetrafluoroethylene (PTFE) featuring external sealing rings for reliable laboratory connections. Without a protruding grip collar, they leave full clearance for ground joint clamps and are intended for vacuum service down to 0,1 mbar. The robust build is suited to continuous use, and the sealing rings remain easy to clean because they are readily accessible. Sizing corresponds to European standard NS 85/55. The product is offered as 1 pc with a net weight of 0,0042 kg. From manufacturer Bohlender, these PTFE grooved sleeves support ground-joint assemblies in chemical synthesis, distillation, and analytical glassware setups where clamp compatibility and vacuum performance are required. PTFE delivers the broad chemical resistance typical of fluoropolymer laboratory components and matches common European NS 85/55 joint geometry used in research and quality-control laboratories.
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 85/55 (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 85/55 PTFE
What is this article?
BOLA Sleeves with Ribs, NS 85/55 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.
Which category should I open next?
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.
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.
