Description
VS 40C butterfly valve is a stainless-steel through valve designed for KF DN 40 vacuum connections in laboratory and process systems. The compact butterfly design provides rapid isolation and reliable flow control while maintaining a clear passage when fully open, making it suitable for rough- and fine-vacuum manifolds, filtration lines and drying setups. Constructed entirely from stainless steel, the valve integrates directly with standard KF40 flanges and withstands typical vacuum-system operating conditions without additional adapters. Offered as a single piece with a net weight of 1,100 kg and a gross weight of 1,300 kg, it is ready for immediate installation on bench-top or system frames. The VS 40C model from manufacturer VACUUBRAND delivers consistent shut-off performance and low leakage for research and industrial vacuum applications. Its robust butterfly mechanism supports frequent actuation cycles and ensures positive sealing when closed, contributing to stable vacuum integrity across a wide range of laboratory workflows that require DN 40 compatibility and durable stainless-steel construction.
This article is part of Stopcocks & valves, in Tubing, hoses & fittings.
Key features
- Pack size: 1 pc
- Product type: Butterfly through valve
- Connection: KF DN 40
- Material: Stainless steel
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Questions about VS 40C in-line valve, KF40
What is this article?
VS 40C in-line valve, KF40 is the article on this page. Luminix Health distributes Vacuubrand 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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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.