Description
1-way stopcock with glass handle NS 19 is a Type N laboratory stopcock equipped with a hollow NS plug and glass handle for controlled flow regulation in chemical glassware. Built to DIN 12541, the valve features a standard ground joint of NS 19 and a bore diameter of 4 mm. The hollow plug design supports smooth rotation within the barrel, and the glass handle provides a firm, chemically resistant grip for everyday laboratory operation. A threaded stopcock retainer secures the plug against unintended movement once the desired position is set. Offered as a single piece with a net weight of 0,057 kg, this stopcock is suited to distillation systems, reaction apparatus and general fluid-handling assemblies that specify a one-way conical valve. The NS 19 joint size aligns with widely used laboratory glass standards, enabling straightforward connection to matching apparatus. This unit from manufacturer Witeg forms part of an established series of precision glass stopcocks for chemical and analytical work. The 4 mm bore permits reliable metering and shut-off of liquids and gases under typical laboratory conditions where DIN-compliant geometry is required.
This article is part of Stopcocks & valves, in Tubing, hoses & fittings.
Key features
- Pack size: 1 pc(s)
- Type: N
- Joint size: NS 19
- Bore diameter: 4 mm
- Handle: Glass
- Plug: Hollow NS plug
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Questions about Stopcock glass grip ST 19
What is this article?
Stopcock glass grip ST 19 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. Delivery across Europe, two to five days when in stock. 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.