Beschrijving
Angle stopcock according to Schiff NS 18,8 is a precision laboratory glass valve for directional flow control in chemical apparatus. It combines an NS 18,8 ground joint with a hollow NS glass plug measuring 10 × 110 mm and a 4 mm bore, conforming to DIN 12545. The angled body allows compact routing of vacuum lines, distillation paths and reaction manifolds while maintaining a reliable conical seal when the plug is properly greased. Supplied as a single piece with a net weight of 0,059 kg, the stopcock integrates directly into standard laboratory glassware assemblies. Its hollow-plug design from manufacturer Witeg supports smooth rotation and consistent sealing under typical laboratory vacuum and atmospheric conditions. Chemical resistance of the glass construction makes the valve suitable for organic solvents, aqueous media and many reagents used in synthesis, analytical work and quality-control setups. Ideal for building modular vacuum trains, Schlenk lines or compact reaction systems where space and leak-tight joints are critical, this Schiff-type angle stopcock provides durable, reusable flow regulation without additional fittings.
This article is part of Stopcocks & valves, in Tubing, hoses & fittings.
Key features
- Pack size: 1 pc
- Joint size: NS 18,8
- Plug dimensions: 10 x 110 mm
- Bore diameter: 4 mm
- Standard: DIN 12545
- Design: Angle stopcock with hollow NS glass plug
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Questions about Angled stopcock, Schiff, ST 18,8
What is this article?
Angled stopcock, Schiff, ST 18,8 is the article on this page. Luminix Health distributes Witeg for laboratory use. It sits in Stopcocks & valves, inside Tubing, hoses & fittings, in Labmateriaal.
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 Labmateriaal.
Shelves beside this one are Hose connectors, adapters & fittings, PVC, PTFE & other tubing, Silicone tubing and Tubing accessories.
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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.
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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.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.