Description
Right-angle valve VA 40 ME is an electromagnetically operated stainless-steel shut-off valve with DN 40 KF connection for laboratory and technical vacuum installations. It provides electromagnetic isolation for process lines that benefit from remote or automated control rather than manual handling. Rated for 80–250 V at 50/60 Hz, the valve integrates readily into existing mains control systems across a wide voltage window. The right-angle design supports space-efficient manifold layouts, while KF flanges allow rapid coupling to standard vacuum components. Available as a single piece from manufacturer WELCH, the VA 40 ME serves as an isolation or stop valve in research, analytical and process vacuum environments. Stainless-steel construction supports reliable mechanical performance in everyday laboratory use. DN 40 KF ports match larger KF line sizes, maintaining flow capacity with controlled electromagnetic actuation. This configuration is suited to users requiring a compact, electromagnetically driven right-angle valve in stainless steel with DN 40 KF interfaces and broad 50/60 Hz supply compatibility for automated vacuum systems.
This article is part of Stopcocks & valves, in Tubing, hoses & fittings.
Key features
- Pack size: 1 pc
- Type: Right-angle valve
- Model: VA 40 ME
- Actuation: Electromagnetically operated
- Supply voltage: 80–250 V, 50/60 Hz
- Material: Stainless steel
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Questions about Right-Angle Valve VA 40 ME, Electromagnetically Operated, 80-250V, 50/60Hz, Stai
What is this article?
Right-Angle Valve VA 40 ME, Electromagnetically Operated, 80-250V, 50/60Hz, Stai is the article on this page. Luminix Health distributes WELCH 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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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.

