Description
BOLA screw couplings GL 25 PTFE provide a chemically inert link between two identical GL 25 threads in laboratory fluid handling. The assembly consists of two PPS screw caps rated to +200 °C, a PTFE/FKM seal and a PTFE connecting piece; only PTFE touches the medium. This design is intended for secure, leak-resistant joining of bottles, vessels or adapters that share the same GL 25 thread size. Distance from sealing lip to sealing lip measures 22 mm, offering a compact yet robust connection for preparative and analytical work. Net weight is 0,055 kg. Manufactured by Bohlender, the coupling uses polytetrafluoroethylene (PTFE) for the wetted connector, supporting a wide range of solvents and reagents without metallic contact. Pack size is one piece. Suitable for modular glass and polymer lab systems where GL-thread compatibility, temperature resistance of the caps and exclusive PTFE media contact are essential for reliable day-to-day operation.
This article is part of Screw caps & closures, in Stoppers, caps & closures.
Key features
- Pack size: 1 pc
- Thread size: GL 25
- Material: Polytetrafluoroethylene (PTFE)
- Screw caps: PPS (up to +200 °C)
- Seal: PTFE/FKM
- Length sealing lip to sealing lip: 22 mm
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Questions about BOLA Threaded Couplings, GL 25 PTFE, PPS nuts
What is this article?
BOLA Threaded Couplings, GL 25 PTFE, PPS nuts is the article on this page. Luminix Health distributes Bohlender for laboratory use. It sits in Screw caps & closures, inside Stoppers, caps & closures, in Labware.
A screw cap has a thread and a liner. The thread has to match the bottle. The liner has to survive the liquid: a pulp liner fails in a solvent that a PTFE-faced liner ignores. The colour of the cap is not the specification.
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 Screw caps & closures. The catalogue is Labware.
Shelves beside this one are Rubber & silicone stoppers, Ground-joint glass 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.