How does the world’s smallest pressure regulator with solenoid valves works?
An electronic pressure regulator with solenoid valves is a closed-loop system that precisely controls pressure and vacuum by electrical control signals rather than mechanical adjustment. Pressure is dynamically controlled by actuating solenoid valves based on real-time data from an integrated pressure sensor. Staiger applies this idea to its world's smallest pressure regulator, which combines micro solenoid valve technology, integrated sensing, and control electronics into a single ultra-compact unit intended for high-precision OEM applications.
The Staiger pressure regulator comes in two configurations: one with 5 mm on/off solenoid valves and another with 8 mm proportional solenoid valves. Both types are designed for quick reaction, high repeatability, and precise control of pressure and vacuum, making them ideal for laboratory automation, automated pipetting, and nanoliter liquid dispensing.
How does the Staiger pressure regulator work?
The Staiger pressure regulator functions in a closed-loop control system. A target pressure is set via an electrical input signal. An integrated pressure sensor continuously monitors the actual outlet pressure and sends the signal to the control electronics, where it is compared with the setpoint.
If a deviation is detected, the controller activates two micro solenoid valves. The first valve regulates pressure buildup from the supply side, while the second valve controls pressure release or venting. The pressure of the on/off valve variant is controlled via high-speed valve switching. The proportional valve variant controls pressure by continually adjusting the valve opening. As demonstrated in the video, this controlled flow behavior allows for highly dynamic, stable, and repeatable pressure and vacuum management even in very small internal volumes.
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