Description
BOLA sealing stopper NS 14/23 is a polytetrafluoroethylene (PTFE) laboratory closure featuring a standard ground joint, external sealing rings and a hexagonal handle. Compared with glass stoppers it is easier to dismantle and needs no joint grease, supporting clean, repeatable sealing of small taper joints. The PTFE body offers an inert contact surface for everyday glassware work, while the outer sealing rings help maintain a secure fit at NS 14/23. A hexagonal handle with 19 mm wrench size allows firm, controlled turning when seating or releasing the stopper. Thermal expansion on heating can, in rare cases, stress ground joints, so temperature changes should be considered during use. Supplied as one piece with a net weight of 0,015 kg, the stopper suits compact assemblies that require a lightweight non-glass plug. From manufacturer Bohlender, the BOLA range pairs PTFE construction with a hexagonal grip for convenient handling of NS 14/23 joints in analytical and preparative laboratory setups.
This article is part of Ground-joint glass stoppers, in Stoppers, caps & closures.
Key features
- Pack size: 1 pc
- Product type: PTFE sealing stopper with standard ground joint
- Joint size: NS 14/23
- Material: Polytetrafluoroethylene (PTFE)
- Handle: Hexagonal, wrench size 19 mm
- Sealing: External sealing rings
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Questions about BOLA Stoppers, NS 14/23 PTFE, hexagonal grip
What is this article?
BOLA Stoppers, NS 14/23 PTFE, hexagonal grip is the article on this page. Luminix Health distributes Bohlender for laboratory use. It sits in Ground-joint glass stoppers, inside Stoppers, caps & closures, in Labware.
A ground-glass stopper matches a ground neck of a stated joint size. A 14/23 stopper does not seal a 29/32 neck. The stopper is part of the flask's seal, and a chip on the grind is a leak.
A closure is the part that decides whether a bottle stays shut and whether the contents attack the seal. A ground-glass stopper matches a ground neck. A screw cap needs the right thread and a liner that survives the liquid. Rubber and silicone stoppers push into a mouth. The liner, not the colour of the cap, is the chemical choice. The vessels they close are indexed under ISO laboratory glassware.
Which category should I open next?
The category is Stoppers, caps & closures. The sub-category is Ground-joint glass stoppers. The catalogue is Labware.
Shelves beside this one are Screw caps & closures, Rubber & silicone stoppers, Lids & seals and Closures (other).
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. Articles in stock ship within 2–5 business days. 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.