Designed for system integration
Fluigent L-X
[IVLSW1]Sample injection and recirculation microfluidic valve for industry
- Compact
 Fast Fast- Actuation and response time 
- AccurateLow internal volume 
 Automation Automation- Fully automated with in house software or SDK libraries 
The L-X OEM 6 port 2 position valve is a bidirectional microfluidic valve designed for precise sample injection or fluid recirculation in cell culture applications.
Specifications
| Internal volume | 660 | µL | 
| Dead volume | none | |
| Switching time | 100 | ms | 
| Weight | 475 | g | 
| Dimensions | 7x9x15 | mm | 
| Wetted materials | PEEK | |
| Max pressure | 7 | bar | 
| Liquid compatibility | Aqueous solvent, oil, organic solent, biological sample | |
| Port communication | RJ45 | |
| Software control | OxyGen, SDK | 
L-X References
| Name | Part number | Comment | 
|---|---|---|
| Fluigent L-X | IVLSW1 | Sample injection and recirculation microfluidic valve for industry | 
Technical downloads
Fluigent L-X valve features
Precise fluid injection
Several sample loops are available, from 5 µL to 100 µL.
Fluigent software for automation
The L-X microfluidic valve can be controlled by Fluigent software for long-term experiments. Create a time-based protocol to set actuation timing of the valve(s).
A versatile valve
The OEM 6 port 2 position valve can be operated using pressure up to 7 bar (100 psi), and the wetted material is PEEK, a highly chemically and biocompatible material.
Minimized liquid waste
Low port-to-port volume of 660 nL.
Related applications
Fluigent pressure-based flow controllers VS Peristaltic pump
| Fluigent pressure-based flow controllers | Peristaltic pumps | |
| Flow stability | High (<1% variation) | Low (>20% variation) | 
| Response time | High | Medium | 
| Pressure control | Yes | No | 
| Price | Medium-High | Low | 
| Implementation | Requires pressure sources | Easy | 
How to use the L-X device ?
 
Working principle
Peripheral valve ports (numbered from 1 to 6) can alternatively be connected to the right or the left channels. The L-X OEM microfluidic valve is actuated by a motor that drives a rotor – where the fluidic path is engraved – against a stator – containing the fluidic paths.

Fluid recirculation
The L-X 6 port 2 position valve 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 pressure-based flow controllers, it can achieve a highly stable flow rate, allowing to better mimic flow-induced shear stress experienced by cells in vivo.
The figure shows the working principle: fluid is injected from reservoir 1 to reservoir 2 and passes through the L-X. When reservoir 1 is almost empty, fluid is injected from reservoir 2 to reservoir 1, and the port positions of the L-X are switched so that fluid is injected on the same direction, which is usually required for cell culture under flow.
FAQ
How to add the L-X in my experiment and how to connect it?
 
 
 
 
 
- Connect the L-X to the SWITCH EZ port
- Cut the 1/16’’ OD tubing to the desired length, leaving a square-cut face.
- Insert the tubing into a nut until it passes 1.5 – 3mm.
- Insert into a port of L-X, twist until it is tightened. You can pull gently the tubing to verify that it is securely connected to the port.
How to connect a sample loop to the L-SWITCHTM?
How to connect a sample loop to the L-X?
 
 
 
 
 
 
- In order to connect a sample loop to the L-SWITCH™, you will need two nuts and two ferrules, in addition to the sample loop itself (nuts and ferrules are provided with the sample loop).
- Pass one end of the sample loop through a nut.
- Add a ferrule
- Hold the set together and insert it into a port of the L-SWITCH™ (for example, port 1 here).
- Twist until the set is tightened. You can pull gently the sample loop to verify that it is securely connected.
- Repeat these steps for the other end of the sample loop to connect it to another port of the L-SWITCH™ (for example port 4 here).
How can I clean the L-X after use?
You can clean the L-Switch™ in the same way than the Flow Unit.
Besides, Fluigent strongly advises you to use filtered solutions. Wetted materials are PEEK only.
OxyGEN
| Control in real-time, protocol automation, data record and export | 
| ver. 1.0.0.0 or more recent | 
Software Development Kit
| Custom software application | 
| ver. 21.0.0.0 or more recent | 
Expertises & Resources
- 
                                Fluigent Products Datasheets L-X Technical Specifications Download
- 
                                Expert Reviews: Basics of Microfluidics Key considerations for fluidic system integration Read more
- 
                                Fluigent Products Datasheets L-SWITCH™ Datasheet Download
- 
                                Microfluidic Application Notes Peristaltic Pump vs Pressure-Based Microfluidic Flow Control for Organ on Chip applications Read more
 
 
 
