Humphrey Balanced Servoid

Humphrey Balanced Servoid: the revolution in high flow

The Humphrey Balanced Servoid is the ultimate answer to the demand for a proportional valve that combines extremely high flow volumes with the sensitivity of a precision instrument. Thanks to the revolutionary "balanced" design, the Servoid is insensitive to fluctuations in inlet pressure. Inacom supplies this powerful valve for the most demanding medical and industrial applications.

Pressure-balanced perfection and stability

The biggest advantage of the Humphrey Balanced Servoid is that the internal forces are fully balanced. With conventional valves the solenoid has to fight the incoming air pressure, but with the Servoid the pressure helps maintain a neutral balance.

• Unrivalled flow: The Servoid delivers a considerably larger flow than standard proportional valves of comparable size.
• Low hysteresis: Because there is no internal friction, hysteresis is extremely low. That is why the valve responds immediately and consistently to every change in the control signal.
• High resolution: Even at very high pressures and volumes, the resolution of the control is maintained.

Important difference: Balanced vs. Inert (MIDP)

When selecting the right proportional valve, it is important to look at the medium. Although the Balanced Servoid is superior in flow volume for air and oxygen, it is less suitable for aggressive liquids.

For such critical liquid applications, we refer you to the Humphrey MIDP Proportional Inert Solenoid Valve. The important difference is that the MIDP has an "inert" design in which the medium is fully separated from the mechanism. Where the Balanced Servoid excels in pure power and flow for gases, the MIDP offers the necessary chemical resistance for aggressive media.

Technical specifications Balanced Servoid

Control for maximum precision

To use the full potential of the Humphrey Balanced Servoid, high-quality PWM control is necessary. Inacom recommends ProControl™ driver technology. By setting the dither frequency optimally, any form of static friction is eliminated, resulting in a virtually perfect linear flow curve.

Your partner for advanced pneumatics

At Inacom we understand that the Humphrey Balanced Servoid is often used in systems where precision at high volume is essential. That is why we offer not only the component, but also full technical support in designing your gas system. From prototype to series production, we help you make the right choice between balanced power and inert protection. CAD drawings can be downloaded from the Humphrey website.