Description
Replacement plug N hollow NS 14,5 is a hollow ground-glass stopcock plug engineered for laboratory stopcocks and valves that use the NS 14,5 standard taper joint. Conforming to DIN 12541, the Type N design omits threaded stopcock securing and provides a central bore of 2,5 mm for fluid or gas transfer. The hollow body keeps weight low while preserving the sealing surface integrity required for vacuum-tight and pressure-stable connections. Offered by manufacturer Witeg as a dedicated spare, this plug enables quick restoration of worn stopcocks without replacing the complete assembly. It is supplied as one piece with a net weight of 0,01 kg and fits directly into existing NS 14,5 glassware common in organic synthesis, fractionation and general laboratory practice. The precise bore and ground finish support reproducible flow characteristics and reliable seating, making the component suitable for glass workshops, teaching laboratories and research groups that maintain DIN-standard stopcock systems.
This article is part of Stopcocks & valves, in Tubing, hoses & fittings.
Key features
- Pack size: 1 pc
- Type: N hollow
- Joint size: NS 14,5
- Bore diameter: 2,5 mm
- Standard: DIN 12541
- Thread lock: without threaded stopcock securing
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Questions about Stopcock hollow ST 14,5
What is this article?
Stopcock hollow ST 14,5 is the article on this page. Luminix Health distributes Witeg for laboratory use. It sits in Stopcocks & valves, inside Tubing, hoses & fittings, in Labware.
A stopcock opens and closes a line, or directs it between ports. Glass stopcocks have a ground plug that needs grease or a PTFE key. The bore decides the flow. A two-way and a three-way key are different parts.
Tubing is how a liquid or a gas moves between two vessels without being poured. Silicone stays flexible and survives repeated autoclaving. PTFE resists almost every solvent and is stiff. PVC is the ordinary flexible line for water and for mild aqueous work. The fitting, not the tube, is what usually leaks: the barb, the thread and the stopcock have to match the tube bore. Glass and plastic apparatus around these lines is indexed under ISO laboratory ware.
Which category should I open next?
The category is Tubing, hoses & fittings. The sub-category is Stopcocks & valves. The catalogue is Labware.
Shelves beside this one are Hose connectors, adapters & fittings, PVC, PTFE & other tubing, Silicone tubing and Tubing accessories.
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.