Description
Disposable stopcock with PTFE plug NS 29/10,0 mm bore is a precision laboratory valve for controlled fluid handling in research and analytical settings. Fabricated from borosilicate glass 3.3, it combines excellent chemical and thermal resistance with a PTFE plug that delivers smooth operation and broad media compatibility. The design incorporates bent tube connections together with a plug retainer that secures the PTFE component against accidental release during use. A 10,0 mm bore paired with the NS 29 ground joint supports efficient flow while ensuring interchangeability with standard laboratory glassware. Net weight is 0,212 kg, yielding a compact yet robust unit suitable for bench-top assemblies. This stopcock from manufacturer Rettberg is well suited to organic synthesis, distillation trains, gas-handling lines and general shut-off duties where inert surfaces are required. Its single-piece construction simplifies integration into complex apparatus and maintains leak-tight performance under typical laboratory vacuum or pressure conditions.
This article is part of Ground-joint glass stoppers, in Stoppers, caps & closures.
Key features
- Pack size: 1 pc(s)
- Material: Borosilicate glass 3.3
- Bore diameter: 10,0 mm
- Joint size: NS 29
- Plug type: PTFE
- Technical Information Sheet:
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Questions about Stopcock, straight bore, PTFE-plug size 29/10,0 mm bore
What is this article?
Stopcock, straight bore, PTFE-plug size 29/10,0 mm bore is the article on this page. Luminix Health distributes Rettberg for laboratory use. It sits in Bouchons en verre à rodage, inside Bouchons, capuchons & fermetures, in Matériel de laboratoire.
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 Bouchons, capuchons & fermetures. The sub-category is Bouchons en verre à rodage. The catalogue is Matériel de laboratoire.
Shelves beside this one are Bouchons à vis & fermetures, Bouchons en caoutchouc & silicone, Couvercles & joints and Fermetures (autres).
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.