High Flow Proportional Valve



  • Up to 400 LPM Flow Rate
  • Unique Proportional Valve Design 
  • Easily Cleaned and Maintained
  • Quiet Operation
  • Low Hysteresis Performance
  • Controls Air, Water, and Other Mediums

Kelly Pneumatics, Inc. introduces the High Flow Proportional Valve, which offers the highest flow rates of our proportional valve product line. his valve performs excellently at low or high pressures, and offers low hysteresis performance characteristics with exceptional repeatability. Even at lower input pressures, the high flow valve can reach flows of up to 200-300 LPM. We also offer alternate versions that are resistant to both high and low temperatures, therefore performing consistently in many different environments.


Valve Function2-Way, Normally Closed
Electrical ConnectionFlying Wire Leads
Working Pressure-14.7 to 100 psig (6.8 bar) (standard)
500 psig (custom)
Flow Range0-400 liters per minute of air flow
Orifice Size.125, .156, or .188 inches
Voltage Range0-10 or 0-20 VDC
Port Types1/4" NPT or 1/8" NPT
Seal MaterialBuna-N, Viton, or EPDM
Operating Temp.-40° to 200°F (-40° to 93°C)
Maximum Hysteresis5-8% of full current
Leak RateBubble Tight Seal
Type of OperationDirect solenoid
Filtration40 Micron Recommended
Wetted MaterialsCold rolled stainless steel w/ electroless
nickel plating, brass and 304 stainless steel.
Power8.2 watts (max)



More From This Product Line

Max Flow Rate:32 LPM

Max Flow Rate:140 LPM

Max Flow Rate:300 LPM

Not Sure Which Proportional Valve You Need? Please Tell Us About Your Application. We'll Help You Select the Perfect Valve For Your Project.