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HPLC valves for injection and switching

Due to their compact dimensions, KNAUER valves need very little bench space. Valves are ubiquitous in all HPLC applications. 2-position valves are used mostly for injections, but can be used for complex switching systems as well. Multi-position valves are used for fraction collection, eluent selection or column switching.

KNAUER valve drives feature a short switching time of 150 ms to reduce pressure surges during a run. There are multiple ways of control: Directly via keypad on the device, via software with LAN or RS-232 connection or via analog control.

Electrical valves

AZURA V2.1S valve drive with 6-port valve head

Electrical valves can be used for many HPLC injection and/or switching tasks.

Manual valves

Switching and injection valves by KNAUER are available in a large range of different materials and specifications.

Valve heads

KNAUER offers a wide range of valve heads in stainless steel and PEEK with 1/8" or 1/16" connectors.

Sample loops

Sample loops for preparative or analytical HPLC in PEEK or stainless steel, with different connections, from 2 µl to 150 ml volume. 

Valve PDF documents

Find here manuals and other document about KNAUER valves.

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