Description
The 3-way stopcock according to Czako with capillary joints NS 14,5 is a precision laboratory glass valve intended for directing and isolating gas or liquid streams in multi-path setups. It combines a solid NS plug with capillary connectors sized 8 x 100 mm and a bore diameter of 2,5 mm, and it is manufactured in accordance with DIN 12563. The standardised NS 14,5 ground joint integrates readily with matching conical glassware, supporting leak-tight connections in vacuum lines, inert-gas manifolds and general fluid-handling apparatus. Available from manufacturer Witeg as a single piece, this Czako-type three-way stopcock is suitable for analytical chemistry, preparative work and quality-control laboratories that require compact switching between three ports. The solid plug design promotes a durable seal under repeated operation, while the capillary outlets are dimensioned for narrow-bore tubing and fine control of flow. Typical applications include stopcock and shut-off functions within cone-joint assemblies, vacuum systems and gas distribution benches. With a net weight of 0,064 kg, the component remains easy to handle when building or modifying glass apparatus.
This article is part of Stopcocks & valves, in Tubing, hoses & fittings.
Key features
- Pack size: 1 pc
- Joint size: NS 14,5
- Connector type: Capillary joints
- Capillary dimensions: 8 x 100 mm
- Bore diameter: 2,5 mm
- Standard: DIN 12563
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Questions about Stopcock Czako three-way ST 14.5
What is this article?
Stopcock Czako three-way 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.