Description
PTFE stopcock plug with thread, complete with 3-part stopcock retainer, provides a 2 mm bore and NS 12,5 joint for laboratory stopcock systems. This one-way plug manufactured from polytetrafluoroethylene (PTFE) forms a grease-free alternative when paired with polished DURAN® disposable stopcocks. The three-part stopcock retainer is included, ensuring secure mounting and reliable operation without traditional lubricants. Available from manufacturer Duran/DWK Life Sciences under the DURAN® brand, the component is specifically intended for use with polished DURAN® one-way stopcocks in analytical and preparative glassware. Supplied as a single piece with a net weight of 0,008 kg, it supports clean flow control while reducing contamination risks associated with greases. The threaded PTFE construction offers chemical resistance and straightforward handling for frequent stopcock adjustments. Laboratories benefit from the ready-to-use retainer assembly that maintains plug position during use. Typical applications include grease-free stopcock operation in DURAN® apparatus where precise bore control and secure retention are essential for fluid management and experimental integrity.
This article is part of Rubber & silicone stoppers, in Stoppers, caps & closures.
Key features
- Pack size: 1 pc(s)
- Storage temperature: Standard
- Material: Polytetrafluoroethylene (PTFE)
- Bore: 2 mm
- Joint size: NS 12,5
- EAN: 4032051048775
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Questions about PTFE Key, with thread, with three part retaining device
What is this article?
PTFE Key, with thread, with three part retaining device is the article on this page. Luminix Health distributes DWK Life Sciences for laboratory use. It sits in Rubber & silicone stoppers, inside Stoppers, caps & closures, in Labware.
A rubber or silicone stopper is pushed into a mouth. The size number corresponds to a top and bottom diameter. Silicone survives higher temperatures and more autoclave cycles. Natural rubber is attacked by oils and by some solvents.
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 Rubber & silicone stoppers. The catalogue is Labware.
Shelves beside this one are Screw caps & closures, 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.