Beschrijving
Ball valve VK 40 is a brass vacuum component fitted with a KF DN 40 flange connection for reliable isolation and flow control in laboratory and process vacuum lines. Designed for integration into KF small-flange systems, this valve supports routine switching and shut-off duties in research, analytical and industrial vacuum setups. The robust brass body provides durable mechanical performance under typical laboratory vacuum conditions while the standardised KF DN 40 interface ensures straightforward coupling to matching flanges, bellows and tubing. Supplied as a single piece with a net weight of 2,000 kg and gross weight of 2,100 kg, the unit is ready for immediate installation. Manufactured by VACUUBRAND, the VK 40 ball valve belongs to a proven range of vacuum accessories intended for modular system construction. It is particularly suited to applications requiring a compact, manually operable isolation point between pumps, chambers or gas lines. The clear KF geometry simplifies alignment and sealing with standard elastomer or metal gaskets, helping laboratories maintain leak-tight connections during assembly and maintenance. This component contributes to flexible vacuum manifold design without unnecessary complexity.
This article is part of Stopcocks & valves, in Tubing, hoses & fittings.
Key features
- Pack size: 1 pc
- Product type: Ball valve
- Model: VK 40
- Material: Brass
- Connection: KF DN 40
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Questions about Ball valve VK 40, KF40, brass
What is this article?
Ball valve VK 40, KF40, brass is the article on this page. Luminix Health distributes VACUUBRAND 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.
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.
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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.
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.