Description
Disposable stopcock with PTFE plug NS 14,5/4,0 mm bore is a laboratory shut-off valve built from borosilicate glass 3.3 and fitted with a PTFE plug. It incorporates bent tube connections and a stopcock plug lock to ensure stable seating and controlled flow in glassware assemblies. The NS 14,5 joint with 4,0 mm bore offers a practical intermediate size for connection to standard ground-joint systems in synthesis and analytical setups. Packaged as 1 pc(s) with a net weight of 0,047 kg, the component is prepared for direct integration into laboratory apparatus. This valve from manufacturer Rettberg serves cone-stopcock and shut-off applications where a disposable or easily exchanged unit is required. Borosilicate glass 3.3 constitutes the structural body while the PTFE plug forms the sealing surface. Suitable uses include isolation of reaction vessels, flow regulation in distillation lines and general fluid control tasks that demand NS joint compatibility and chemically inert contact materials.
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
- Plug material: PTFE
- Joint / bore: NS 14,5/4,0 mm
- Connections: Bent tube connections with plug lock
- Technical Information Sheet:
Récemment consulté
Vous aimerez peut-être aussi
Questions about Stopcock, straight bore, PTFE-plug size 14,5/4,0 mm bore
What is this article?
Stopcock, straight bore, PTFE-plug size 14,5/4,0 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.