Description
BOLA laboratory screw joints GL 14 for hose outer diameter 3,2 mm (1/8) enable reliable tubing connections in laboratory fluid systems. The red screw cap is produced from glass-fibre-reinforced ETFE. Inner components include an ETFE clamping ring with a PTFE sealing wedge and PTFE sealing plate; an extra O-ring is used on joints for hose outer diameters below 3 mm and stays clear of the flow medium. The medium contacts PTFE only, providing very good chemical resistance for transfer and handling tasks. Thread size is GL 14 for hose outer Ø 3,2 mm. Supplied as one piece from manufacturer Bohlender, the fitting has a net weight of 0,005 kg and a gross weight of 0,017 kg. PTFE-facing seals suit chemically demanding lines on glassware and tubing assemblies where an inert wetted path is preferred. The GL 14 format and 3,2 mm hose specification support straightforward integration into standard laboratory setups.
This article is part of Screw caps & closures, in Stoppers, caps & closures.
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Questions about BOLA Laboratory Screw Joints, GL 14 Ø 3,2 mm PTFE inner parts, ETFE cap
What is this article?
BOLA Laboratory Screw Joints, GL 14 Ø 3,2 mm PTFE inner parts, ETFE cap 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.

