ProControl™ Servoid Series: Extremely Precise Control, with High Flow Capacity

Humphrey’s ProControl Servoid Series Balanced Proportional Valve is designed to deliver accurate variable flow control in critical inert gas applications. The high-flow precision design boasts a reputation for outstanding performance for precise output flow, as proven with its history in patient ventilation equipment.

Balanced Proportional Valve Features and Benefits

Our design features a frictionless, flat-spring armature cartridge that supports repetitive actuation and long-term operational success. The frictionless balanced internal construction is repeatable and not affected by variable input pressures.

Features of this 2-port normally closed valve:

Direct solenoid operation
Compatible with oxygen, air and inert gas
Customizable calibrations for flow and pressure requirements
Customizable piping and mounting
High 200 SLPM maximum flow rate
40⁰ to 120⁰ F temperature range
RoHS and REACH compliant
>4% total hysteresis

Product benefits:

Ideal design for precise air and inert gas flow control
Various flow and inlet pressure settings available
Excellent turndown ratios
Cycle repeatability
Low hysteresis
Factory tested to 100+ million cycle life

ProControl Valve Family

The high flow Balanced Servoid resides with the Humphrey ProControl family of proportional valves, including:

Mini, 2-port PV3 and PV10 valves
Small, 2-port PC30
PCD proportional valve driver
MiDP aggressive media flow controller

Our application specialists can help you assess your needs to determine if any of those products can optimize your application performance. For more information about the Balanced Servoid series, download the product literature here.

Experts in Innovation and Customization

Humphrey Products has decades of experience creating standard and custom valve solutions to suit a wide variety of industries and applications. Review our product catalog and contact our technical team for more information about CAD files and specifications.