Miniature Proportional Valves
Parker Precision Fluidics offers a line of miniature proportional valves used in medical devices requiring precision and high performance. These miniature pumps offer a variety of features like a compact efficient design, low power, small size, and light weight ideal for medical device applications like patient monitoring, clinical diagnostics, analytical chemistry, portable gas detection, and medical instrumentation.
Parker Precision Fluidics Miniature Proportional Valve product family consists of the following products:
VSO - Miniature proportional valve provides enhanced flow control for applications where precise control flow control is required up to 56 slpm. The VSO® miniature proportional valve provides precise flow control of gas in proportion to input current. The valve can be controlled with either DC current or pulse width modulation along with closed loop feedback to deliver optimal system performance.
VSO Low Flow - Miniature proportional valve provides enhanced flow control for applications where precise control flow control is required between 0 - 500 sccm. Like the VSO® miniature proportional valve, the VSO® Low Flow miniature proportional valve provides precise flow control of gas in proportion to input current. The VSO® Low Flow miniature proportional valve is ideally suited for manufacturers of Gas Chromatography and Mass Spectrometry equipment.
VSO MI - miniature proportional valve specifically designed for medical device manufacturers. Based upon Parker Hannifin’s benchmark VSO® design, the VSO®- MI miniature proportional valve incorporates thermal compensation to provide precise flow control and stability over a wide operating temperature range. The VSO®- MI miniature proportional valve is oxygen service clean and has been evaluated by registered laboratories to guidelines established within the ISO 10993-1:2009 matrix and USP regulatory standards for bio-compatibility.
MD PRO - Miniature 2-way normally closed (NC) proportional valve that controls gas flow proportionally to input current for flow rates up to 56 slpm. When used with closed loop feedback, the MD PRO is an economical solution that provides repeatable pressure and flow control. The MD PRO is ideal for applications such as respiratory therapy, anesthesia delivery and patient monitoring devices.
Lone Wolf - Miniature proportional valve is a thermally compensated 2-way normally open (NO) proportional valve designed to maintain accurate and repeatable flow over a wide range of media. With the highest performance characteristics of any NO proportional valve available on the market, the Lone Wolf miniature proportional valve is an ideal choice for medical devices and patient monitoring applications that require rapid response along with stable and accurate performance.
VSO Max - High flow miniature proportional valve that provides maximum flow capabilities to 240 slpm while consuming less than two watts of power. The valve delivers a high rate of controllable flow while consuming 25% less power than comparable miniature proportional valves. The VSO®- MAX miniature high flow proportional valve is an ideal solution for applications requiring low hysteresis and fast response, such as ventilators with fresh breathing circuit gas delivery, as well as other medical, analytical, and pathogen detection devices.
HF PRO - Miniature 2-way normally closed (NC) high flow proportional valve that controls gas flow proportionally to input current with flow rates up to 60 slpm at 50 psig. The valve can be controlled with either DC current or pulse width modulation along with closed loop feedback to deliver optimal system performance. The HF Pro miniature proportional valve is an ideal choice for applications that require repeatable pressure and flow control such as respiratory and patient monitoring applications.
VSO LowPro Valves – Designed to offer enhanced flow control for inert gases in applications where typical flow rates reach up to 50 SLPM with a maximum of 1.5 Watts at room temperature. These miniature valves are 16 mm wide by 14 mm tall, with an orifice of up to up to 0.080” (2.03 mm) and a weight of 12 g. They can be inserted into the smallest portable devices to improve performance, size, and weight, and can perform the function of valves three times their size without sacrificing the power.
VSO MAX HP – Miniature high flow proportional valve designed to provide maximum flow capabilities that are greater than 200 slpm @ 45 psi (3.10 bar), while consuming less than two watts of power. This valve is ideal for use in applications where size is important, such as with ventilators, insuflators, anesthesia delivery and monitors, and other mass flow control applications.
For more features and specifications of these different miniature proportional valves, download the catalog.