Skip to main content

Proportional Valve Driver

ProControl™ PCD - Proportional Valve Driver

The easiest benchtop proportional valve controller available today. Set-up, evaluate and operate any proportional valve in minutes.

Humphrey ProControl™ PCD is your versatile valve driver for controlling proportional solenoid valves of one amp or less, regardless of valve manufacturer. It’s compatible with a variety of input signals to accomplish the desired output and drive your valve.  PCD’s user-friendly features allow for quick setup, saving valuable time. A front scroll wheel easily sets each configuration.

View in Online Catalog

Download Technical Data Sheet

ProControl PCD

PCD is compatible with various control logics, such as PLC’s, IOT’s, closed-loop sensor feedback configurations, and a variety of data acquisition systems. Drive your proportional valve through PCD with a 12 or 24V DC power supply.

Many PCD users bench test their proportional valves with PCD set in manual mode, then transition easily to system-level testing using their data acquisition system by “scrolling” PCD to the appropriate setting.

Industries that utilize PCD include biomedical equipment and devices, which require accurate performance and precision repeatability. In industrial environments, PCDs are used due to their rugged, durable packaging. In analytical and laboratory applications, PCDs are used where simplicity and “plug and play” functions, such as sensor calibration, precise motor control or equipment evaluations, are ideal.


PCD features include:

  • Screw-less push-button clamp connectors
  • LCD readout offering real-time feedback
  • Scroll wheel configuration ... no jumpers or potentiometers to adjust
  • Manual setting: Easy control of any proportional valve via a user-friendly scroll
  • Nine pre-programmed settings for easy plug and play of Humphrey ProControl Valves
  • Input options: 0-5 Volts DC, 0-10 Volts DC or 4-20 mA
  • Select output signals from constant current to 1 Amp, or PWM in a variety of frequencies and duty cycles


Check out our PCD video:



Other industry terms for Proportional Valve Driver are Proportional solenoid valve controller, Proportional solenoid valve driver, Proportional solenoid valve evaluator, Proportional solenoid valve operator, PWM proportional solenoid valve controller, Analog proportional solenoid valve controller, Digital proportional valve controller, Data Acquisition valve controller, DAQ valve controller, PWM solenoid valve driver, Pulse Width Modular solenoid valve driver, Benchtop proportional valve controller, Proportional valve tester, Miniature proportional valve controller