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Techniques & Tools Liquid Chromatography, Technology

Time to Switch It Up?

sponsored by Knauer

In nearly every HPLC and process technology system, switching valves are of essential function. With the Valve Unifier VU 4.1, KNAUER presents a new generation of a valve drive that offers unprecedented flexibility. A powerful motor and smart control allow optimal switching speed and the lowest possible backpressure.

“By producing nearly every part in-house we have full control of the production process. To create the new KNAUER valve technology VU 4.1 we established advanced production technologies, including bores as thin as 0.3 mm and a completely new surface treatment.”

Thomas Müller, Head of Manufacturing at KNAUER.

“Thanks to RFID (radio-frequency identification) technology the VU 4.1 automatically recognizes a mounted valve within seconds. All relevant switching parameters are set to optimum and GLP data are stored. For us in the method development department this feature is extremely valuable as it saves time consuming reconfiguration and prevents misconfiguration,“ says Dr. Kate Monks, KNAUER’s Head of Applications and Academy.

As a long-established supplier of HPLC instruments, KNAUER has decades of experience with switching valves. Controlling the whole chain of production from development to manufacturing, KNAUER is also a reliable OEM manufacturer offering high-quality products made in Germany.

Example of application: Schematic of a two-step purification system, showing the importance of valve switching.

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