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Proportional Valve Driver



  • Proportional Current Output
  • High Resolution Current Output
  • Maintains Current with Change in Coil Resistance
  • Usable in Variety of Electronic Assemblies

Kelly Pneumatics, Inc. offers a Driver Board for its Proportional Valve product line. This driver board converts an input signal proportionally to an output current, driving the attached valve with excellent resolution. The driver board maintains output current at a given input signal,  even when the coil resistance changes with a change in coil temperature, maintaining flow control. Can also be applied to other electronic applications in need of precise current control.


Voltage Required 12 or 24 VDC +/- 10%
Max Current Output < 3 watts ( Mini-Proportional Valve )
< 6 watts ( Midsize Proportional Valve )
varies for other products
Control Signals 0-5 volts, 0-10 volts, 4-20 milliamps
Operating Temp 32-150 °F or 0-65 °C



Terminal Number123
Lead Wire ColorBrown WhiteBlue
FunctionPower Supply VoltageControl SignalGround


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