Description
Stopcock bridge with 4 NS stopcocks is a specialised laboratory glassware component intended for distillation bridge assemblies. Configured as a single part carrying four NS stopcocks, it enables controlled routing and isolation of vapour or liquid streams during separation work. The compact unit has a net weight of 0,223 kg and integrates with standard ground-joint apparatus commonly used in chemical laboratories. From manufacturer Witeg, the bridge supports modular distillation setups where multiple diversion or shut-off points are required within one assembly. Chemists apply such stopcock bridges in fractional distillation, solvent recovery, and preparative organic work that demand precise flow management. The single-part layout with four NS stopcocks simplifies installation into existing glass trains and reduces the number of separate joints that must be sealed. Originating from Germany, the component meets everyday requirements of research, teaching and quality-control laboratories handling organic or inorganic separations. Supplied as 1 pc, it is ready for direct incorporation into distillation bridges and related apparatus without complex additional fittings. This stopcock bridge contributes to reproducible, well-controlled distillation workflows across analytical and preparative scales.
This article is part of Stopcocks & valves, in Tubing, hoses & fittings.
Key features
- Pack size: 1 pc
- Product type: Stopcock bridge
- Stopcocks: 4 NS
- Configuration: Single part
- Country of origin: Germany
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Questions about Stopcock manifolds with 4 ST-stopcocks
What is this article?
Stopcock manifolds with 4 ST-stopcocks 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.
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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.