Microfluidic Injection Valve


    L-SWITCH™ 6-port/2-position

    The L-SWITCH™ is a 6-port/2-position bidirectional microfluidic injection valve used to handle liquids through different valve ports. It is ideal for precise volume injection or for switching between different fluids, as it allows automation of sample injection in your fluid line.

    Fluigent L Switch
    Main benefits
    • Quick

      Valve actuation time

    • Compact

      Uses minimum bench space

    • Biocompatibility

      Biologically compatible  

    • Accurate

      Low internal volume

    Features of Microfluidic Injection Valve


    Peripheral ports (numbered from 1 to 6) can alternatively be connected to the right or the left channels. The L-SWITCH™ is actuated by a motor that drives a rotor – where the fluidic path is engraved – against a stator – containing the fluidic paths.

    Sample injection

    The L-SWITCH™ microfluidic injection valve enables one to load and inject a precise volume of fluid. By selecting the position of the L-SWITCH™ you will choose when you want to load the fluid and then inject it (using a sample loop). Several sample loops are available from 5 µL to 100 µL.

    Workflow automation

    The valve can be controlled by OxyGEN software for long-term experiments. Create a time-based protocol to set the actuation timing of the valve(s).

    Smart control and automation of your fluidic path

    Discover Fluigent microfluidic valves, a set of compact instruments allowing to complexify and easily handle the fluidic path of your system. Once integrated in the set-up, the valves can be controlled in real-time and even without the requirement of a PC.

    How to perform sample injection with the L-SWITCH microfluidic injection valve?

    The L-SWITCH is a 6-port / 2-position microfluidic injection valve that, combined with Fluigent’s pressure controllers, allows us to inject a small volume of sample into a liquid stream, reducing cost, as well as to run and automate long-term experiments with high reproducibility and reliability. 

    The microfluidic injection valve has 6 inputs and two interchangeable configurations shown on the images below. Each input is connected to a neighbor output, either on the right or the left depending on the configuration.

    Example of use

    By combining the microfluidic injection valve with our cell encapsulation platform, it is possible to work with samples with a reduced volume (e.g. working with cells of limited availability, such as stem cells, primary cells from patients…). It is also ideal for the use of rare cells or expensive reagents with a total volume lower than 500µl/.

    Cell encapsulation platform with a microfluidic-injection-valve
    Fig 1. Cell encapsulation platform with an injection loop (L-Switch position A).
    injection loop microlfuidic injection valve
    Fig 2. Cell encapsulation platform with an injection loop (L-Switch position B). 

    Benefits of the L-SWITCH microfluidic injection valve

    • No overpressure: Switch between 2 flow configurations in less than 100ms
    • No waste: No dead volume and low carryover volume.
    • Biocompatible: High chemical and biological compatibility
    • Reproducibility and Reliability: Perform identical injections 



    Switching time100 ms
    Maximum pressureUp to 7 bar (100 psi)


    Internal volume660 nL
    Wetted materialsPEEK
    Dimensions70 x 90 x 150 mm
    Weight475 g


    Gas compatibilityDry, oil-free gas, air, any non corrosive or non explosive gas
    Liquid compatibilityAqueous solvent, oil, organic solent, biological sample


    Control in real-time, protocol automation, data record and export
    ver. or more recent

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    Software Development Kit

    Custom software application
    ver. or more recent

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    Fluid recirculation