Parker Announces New to World Miniature Proportional VSO® LowPro Valve Delivering High Performance in a Compact Size for Medical Applications

Hollis, NH February 9th, 2016 – The Precision Fluidics Division of Parker Hannifin Corporation, the global leader in motion and control technologies, announces the release of its newest miniature proportional valve VSO® LowPro for OEMs looking for innovation in portability, comfort and manufacturability when controlling the flow rate of inert gases in medical equipment. Just 16mm (0.63in) wide by 14mm (0.55in) tall, the new valve addresses a key requirement for small portable devices where installation space is at a premium, while benefiting from a miniature valve that doesn’t compromise on performance due to size. Typical applications for the new to world VSO® LowPro valve include pressure control, volumetric flow control and pulse dose control in devices such as portable oxygen concentrators, ventilators and patient monitors.

In addition to miniature size, another key requirement for the medical device industry is reliability of operation. The VSO® LowPro is qualified for up to 25 million cycles and offers typical flow rates of up to 50 SLPM with a maximum of 1.5W power at room temperature which allows designers to reduce power or battery size supply. With an orifice of up to 2.03mm and a weight of 12g, the VSO® LowPro, can perform the function of valves three times its size without sacrificing power. VSO® LowPro miniature proportional valve is the definition of efficiency.

Today’s environment is about competitive cost advantages. VSO® LowPro offers a low profile design which simplifies mounting and eliminates cartridge configurations that are complex, expensive and require machining. Engineers can choose between three orifice sizes, three voltage levels and manifold mount accessories to handle air, oxygen or any non-reactive, non-condensing gases, while complying with Reach, RoHS, CE and ISO 15001 regulations.
Parker Precision Fluidics is a market leader in miniature, low power, light weight and high performance fluidic products. More information is available at or email

With annual sales of approximately $13 billion in fiscal year 2015, Parker Hannifin is the world's leading diversified manufacturer of motion and control technologies and systems, providing precision-engineered solutions for a wide variety of mobile, industrial and aerospace markets. The company employs approximately 55,000 people in 50 countries around the world. Parker has increased its annual dividends paid to shareholders for 59 consecutive fiscal years, among the top five longest-running dividend-increase records in the S&P 500 index. For more information, visit the company's website at, or its investor information website at