Description
3-Way stopcock with PTFE thread NS 14,5 is a precision laboratory valve featuring a T-bore for controlled multi-path flow routing in chemical glassware assemblies. It is fitted with interchangeable NS plugs that incorporate a thread and screw connection, allowing secure locking and straightforward replacement of the sealing element. The stopcock uses a PTFE plug, providing broad chemical resistance for routine laboratory media handling. Overall dimensions are 9 x 100 mm with a bore of 2,5 mm, and the design follows DIN 12554. Net weight is 0,053 kg per unit, supplied as a single piece. This component from manufacturer Witeg integrates readily with matching NS 14,5 ground-joint systems and is suited to vacuum lines, distillation setups, gas manifolds and general fluid-distribution tasks where inert sealing surfaces and standardised joints are required. The threaded plug retention improves operational safety during repeated open-close cycles while maintaining a reliable seal under typical laboratory conditions.
This article is part of Stopcocks & valves, in Tubing, hoses & fittings.
Key features
- Pack size: 1 pc
- Type: 3-way stopcock, T-bore
- Joint size: NS 14,5
- Bore diameter: 2,5 mm
- Dimensions: 9 x 100 mm
- Plug: interchangeable NS-PTFE with thread and screw lock
Recently viewed
You may also like
Browse related categories
Category
Sub-category
Catalogue
Brand
Questions about Stopcock, three-way, ST 14,5
What is this article?
Stopcock, 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.