Description
Replacement plug NS 29 PTFE is a complete stopcock plug assembly for larger standard ground-joint laboratory glassware. Specified for NS 29,2 with a 10 mm bore, it restores full flow control in stopcocks handling higher throughput of liquids or gases. The PTFE plug is supplied together with the corresponding screw fitting and washer, allowing straightforward installation into compatible stopcock bodies. Chemically inert PTFE ensures resistance to aggressive reagents and solvents while providing low-friction rotation and a dependable seal. Packaged as a single unit with a net weight of 0,11 kg, the set is designed for direct replacement of worn or incomplete original assemblies. This NS replacement plug from manufacturer Witeg supports maintenance of larger distillation apparatus, reaction vessels, dropping funnels and process-scale glassware that rely on interchangeable ground joints. The included screw fitting and washer secure the plug correctly and help maintain sealing performance over repeated use. Research and production laboratories can keep critical glassware operational by exchanging damaged plugs promptly with this ready-to-fit PTFE spare.
This article is part of Ground-joint glass stoppers, in Stoppers, caps & closures.
Key features
- Pack size: 1 pc
- Product type: NS replacement stopcock plug
- Material: PTFE
- Joint size: NS 29,2
- Bore diameter: 10 mm
- Scope of delivery: Incl. screw fitting and washer
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Questions about ST-seperate plug ST 29,2
What is this article?
ST-seperate plug ST 29,2 is the article on this page. Luminix Health distributes Witeg 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.