Engineers are frequently tasked with designing portable or stationary instruments that have to meet highly demanding size, power and weight limitations. Nothing unusual in that, you might think. Well, yes, except there’s a caveat. These objectives must be met without sacrificing core attributes such as system-level performance and quality.
If you work for an OEM and know this to be a familiar feeling, help is now at hand. Here at The Lee Company we’ve come up with the genvi™ LGV platform, a new generation of versatile and innovative three-port miniature solenoid valves.
During the development phase, our team of expert engineers set about creating a small-footprint solenoid valve that would offer high flow, low power consumption and low leakage across an extensive life cycle (25 million cycles minimum), thus making it perfect for applications such as molecular diagnostics, oxygen delivery, respiration therapy and environmental analysis systems, to list but a few.
Here at The Lee Company we know how to push each sub-component so that it delivers improved performance within a smaller footprint, thus challenging the limitations of current fluidic technologies. Our new genvi™ LGV series is produced using innovative manufacturing techniques to ensure availability in a 10mm package. Moreover, the valve not only delivers unmatched reliability, but an economical price point that makes it highly attractive to design engineers everywhere.
In terms of specification, despite the small size of genvi™, flow capability is up to 40 l/min at 1 bar. Depending on the application, high flow capability can translate into improved efficiencies in sample throughput, increased oxygen delivery or faster venting, for example.
Another attribute is power as low as 318 mW, even during continuous duty operation. Low power consumption reduces system-level heating, which is important for a number of reasons. For instance, when designing a system for processing thermally-sensitive biological samples, power should be minimised to reduce heat and mitigate any risk of damaging the sample. In addition, hand-held instruments, such as portable gas or breath analysers, often don’t have space for fans and heatsinks to aid system cooling, while designers of battery-operated, portable or simply miniaturised systems typically have a very restricted power budget due to battery life or compressor size constraints.
Anyone adopting our genvi™ valves will also enjoy an extremely tight leakage rating (25 μl/min maximum) that reduces compressor demand and further underscores the valve’s ability to provide consistent, long-term operation across a long working life. To explain further, when pressurising a fixed volume within a microfluidic cartridge flowing to a sensor, or sealing off from a patient, leakage rates are critical to ensure no unintended sample volume is lost. This factor is particularly critical in portable devices and thus, the exceptionally low leakage rates of genvi™ translate to reliable, repeatable sample transport, less compressor run time and system-level power savings.
For specific projects, we’re also happy to report that individual performance characteristics can be further optimised in line with customer requirements.
If you’d like to discover more about our genvi™ LGV series solenoid valves and how they can benefit your project, please contact us.