The L-Switch™ is a  bidirectional 6-port / 2 position valve for injection or switching different fluids. It’s configuration make it ideal for recirculation in cell culture.



Easy to setup and use
Chemically and biologically compatible (wetted materials: PEEK)

Working principle

The L-SWITCH™ is a 6-port / 2-position injection valve: Peripheral ports (numbered from 1 to 6) can alternatively be connected the right or the left neighbor.

The L-SWITCH™ is actuated by a motor that drives a rotor – where the fluidic path is engraved – against a stator – hosting the fluidic ports.

cell recirculation valve technology

L-Switch™ positions

sample injection valve

Bidirectionalflow in the L-SWITCH™

Fluid recirculation

The ESS™ L-SWITCH™ can be used as a useful cell culture tool: a small volume of buffer can be recirculated within a closed loop into the chip for several hours or days. Combined with our MFCS™-EZ it can achieve a highly stable flow with a positive impact on the shear stress.


Fluid injection

The ESS™ L-SWITCH™ valve enables you 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 then inject it (using a sample loop).

Several sample loops are available from 5 µL to 100 µL.

volume injection valve on set up



• ESS™ Control software.
• Low internal volume (660nL)
• Automated control
• Usable with or without a sample loop
• No dead volume
• External fittings
• Port-to-port switching: 100ms


• Save time with automation capabilities
• Simplify chip design
• Save bench space
• Maintain sample integrity
• Reduce reagent consumption
• Communicate with external devices


• Maximum applied pressure: 7bar
• Size: 7x9x15cm3
• Weight: 475g
• Power supply; RJ45 to the SWITCHBOARD
• P/N = LSW001 (Product Number)


The ESS™ Control allows to visualize and control the L-SWITCH and other Fluigent valves position in real time. We have also developed many features to simplify routine experiments :

• Ability to record and log the positions of all devices during the experiment.
• Save a set of parameters as a configuration/method.
• Modular display of your devices: the main window can be contracted and expanded.
• Every control can be undocked and displayed in an individual and repositionable compact window.
• Customize the interface, such to include switch names and fluidic ports for ease of identification.

microfluidic valve switching


The Microfluidic Automation Tool (MAT) is an unique program for developing and running time-based experiments. Its drag and drop interface  ensure an easy and rapid protocol creation. It allows Fluigent valve control and thier integration with other microfluidic devices. Combine any ESS platform device with MAT for:

• Benefiting from MAT functions such as repeat, if, wait until, … for the development of complex protocols

• Loading and saving protocols.

• Integrating any Fluigent instrument or other devices (requires TLL signal) in joint process.

software MAT Screenshot

We work daily to create the next generation of in vitro culture platforms.


+34 655 161 691


CEMINEM-Campus Río Ebro