PLSV series GC valve*

The most reliable and durable GC valve 

UNBEATABLE PERFORMANCE

  • 1 million+ cycle in high purity trace gas application and still working
    without noticeable effect on chromatography

  • Result never achieved before with
    a rotary valve

  • Exceed diaphragm valve

The uInProve PLSV series GC valve is a disruptive valve technology achieving both the lifetime of a diaphragm valve and the constant pressure drop and the simplicity of a rotary valve. This new valve technology is based on a reduced sealing surface area offered by the valve’s inserts that replaces the traditional rotor. This revolutionary valve has been designed to respect our most elevated standards that we demand for.

INNOVATIVE INSERT SLIDING VALVE TECHNOLOGY*

  • Reduced surface sealing area that improves leak integrity and reduces the required actuation torque

  • Slidable insert replaces the traditionalrotor

  • Inserts are offered in different materials

  • Constant pressure to flow drop. Resolve diaphragm valve pressure/flow variation

  • Valve inserts easily replacable

  • High resistance to particulate

PLSV series GC valve*

MINIATURE DESIGN

  • Smaller size than any other GC valve available on the market

ACTUATION CONFIGURATION

  • Compact electrical actuator

  • Miniature stepper motor for multiposition or sample stream selection

  • Compact pneumatic actuator

UNIQUE CHARACTERISTICS

  • Available in 4, 6, 10, 12 ports (14 ports optional)

  • Sample stream selection version

  • Internal Sampling loop version

  • Three temperature ranges version available

  • Two pressure ranges version available

  • Insert available in different materials

PURGED LIP SEALING VALVE (PLSV) TECHNOLOGY

ACTUATION PRINCIPLE

INSERT CONFIGURATION

This insert design, which this standard configuration in this valve series, has a sealing surface which is 7 times less then a traditionnal rotary valve. This reduced surface, in combination with our innovative purge concept, result in an increase lifetime and better leak integrity. This unique sliding insert design is what provides a valve with unbeatable performance exceeding rotary and diaphragm valves.

This insert is a variant of our standard insert design. It further
reduces the sealing surface hence less friction, lower actuation
torque and extended lifetime. It is used in the internal
sampling loop and sample stream selection model.

ACTUATOR OPTION

COMPACT PNEUMATIC ACTUATOR

For gas chromatographs that require a pneumatic actuation, this compact design is the perfect choice. Its compact size allow you to fit multiple valves in a single chassis for the most demanding applications.

  • Allow easy replacement for diaphragm valve

  • Operating temperature up to 180oC

  • Stand-off extender available

  • Stand-off extender available

PNEUMATIC ACTUATOR

This actuator is similar to traditional rotary actuators. However, due to our unique valve design which requires less torque compared to traditional rotary valve, it is much more compact.

  • Allow easy replacement for traditional rotary valve

  • Compact dimension

  • Stand-off extender available

  • Optional Hall effect positionning sensor

  • Different brackets available

COMPACT ELECTRICAL ACTUATOR

This actuator has been designed for portable gas chromatographs or where no actuation air is available.


This is the most compact electrical actuator on the market, thanks to our design which requires much less torque compared to traditional rotary valve. Stand-off extenders are also offered for applications where the valve need to be heated.

  • The smallest electrical actuator on the market

  • Perfect for portable gas chromatograph

  • Use in ASDevices GCSense

  • Stand-off extender availablE

SAMPLE STREAM SELECTION ACTUATOR

The uInProve valve is also available in a sample stream selection valve. For this configuration, an actuator based on a very precise stepper motor has been designed.

  • Ultra precise and repeatable positioning

  • Compact dimension

  • Stand-off extender available

INTERNAL SAMPLING LOOP

The same innovative sliding insert design can be used to offer valves with an internal sampling loop. In fact, one of the insert is used as the sampling loop. The insert internal volume is precisely machined to a specific volume. As the insert is made of rigid material, the volume remains constant regardless of the operating conditions, resolving the known issue of diaphragm valve with internal sampling loop. It is well known in the field that the internal sampling loop volume of diaphragm valves varies due to the elasticity of the flexible diaphragm membrane.

  • Micro-Machined to a specific volume

  • Volume constant regardless of operating conditions

  • Available in different materials

  • Available between 0.1 to 2.0 μl Customs size available on request

SAMPLE STREAM SELECTION

The insert sliding concept can be adapted to offer a high performance sample stream selection version. In this configuration, a sliding insert is used to select the appropriate stream while smaller inserts are used to seal the other ports. Due to the unique purge concept, it is impossible to have cross contamination between the streams. This purge system also allows to keep an inert atmosphere inside the valve which is an advantage for hazardous mixtures.

  • No Cross Port contamination with unique purge concept

  • Available in different materials

  • Available 4 to 10 Sample Selection

 PURGE AND TRAP AND SAMPLE CONCENTRATOR

With our dedicated purge and trap valve, release your sample in a much shorter and focused pulse. Traditionnal trap and purge systems are based on a 2 positions valve which means the sample is released while the trap is being heated. With our innovative solution, we offer a 3 steps sequence. The additionnal trap isolation step allows to preheat the trap before releasing its sample. The result is a short and focus sample pulse which improves analytical performance.

  • Release sample in 1 short and focused pulse

  • The first valve dedicated to Purge and Trap

  • Ultra compact design

  • Unsurpassed repeatability and lifetime

  • Improved Purge and Trap performance