Description
Straight-through valve stopcock Economy is a laboratory stopcock for controlled flow regulation in glass apparatus. It features a PTFE spindle together with an integrated sealing system and over-rotation protection, allowing reliable shut-off and fine adjustment across a bore of 0–6 mm. The straight-through geometry supports unobstructed passage of liquids or gases in vacuum lines, distillation assemblies, inert-gas manifolds and general chemical glassware trains. Supplied as a single piece with a net weight of 0,044 kg, the compact unit is easy to incorporate into existing setups. The Economy design from manufacturer Witeg combines practical durability with the chemical resistance of the PTFE spindle against many common laboratory media. Typical use includes analytical and preparative chemistry, process development and teaching laboratories where dependable stopcock performance is required without unnecessary complexity. The over-rotation safeguard helps protect both spindle and glass body during routine handling and repeated open–close cycles, supporting consistent day-to-day operation in research and quality-control environments.
This article belongs on Stopcocks & valves, in Tubing, hoses & fittings.
Key features
- Pack size: 1 pc
- Product type: Straight-through valve stopcock
- Series: Economy
- Spindle material: PTFE
- Bore: 0–6 mm
- Design: Sealing system with over-rotation protection
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Questions about Needle valve ''Economy''
What is this article?
Needle valve ''Economy'' is the article on this page. Luminix Health distributes Witeg for laboratory use. It sits in Stopcocks & valves, inside Tubing, hoses & fittings, in Matériel de laboratoire.
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 Matériel de laboratoire.
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.