Description
BOLA grooved sleeves NS 50/42 PTFE provide a PTFE sealing interface for standard laboratory ground joints. Fabricated from polytetrafluoroethylene, each sleeve incorporates external sealing rings that stay readily accessible for cleaning between runs. Absence of a protruding grip collar means joint clamps can be applied without mechanical interference. The construction supports vacuum applications down to 0,1 mbar and is built for durable, continuous use in the laboratory. Size corresponds to European standard NS 50/42. Supplied as a single piece with a net weight of 0,001 kg, the sleeve is suited to glassware setups that rely on PTFE chemical resistance and stable sealing geometry. These BOLA sleeves from manufacturer Bohlender combine outer sealing rings with a clamp-friendly profile for conical joints. They are commonly selected for distillation, reaction and vacuum apparatus where a cleanable, chemically inert ground-joint sleeve must not hinder the use of standard joint clamps.
This article is part of Distillation heads, adapters & columns, in Distillation & extraction glassware.
Key features
- Pack size: 1 pc
- Material: Polytetrafluoroethylene (PTFE)
- Joint size: NS 50/42
- Vacuum rating: up to 0,1 mbar
- Design: External sealing rings, no protruding collar
Recently viewed
You may also like
Questions about BOLA Sleeves with Ribs, NS 50/42 PTFE
What is this article?
BOLA Sleeves with Ribs, NS 50/42 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.
