Low Hysteresis Proportional Valve



  • 2% Hysteresis 
  • Parallel Valve Design
  • Onboard Voltage Amplifier Available
  • Quiet Operation

Kelly Pneumatics, Inc. offers a Low Hysteresis Proportional Valve with high volume flow capabilities. This valve provides the second-highest flow performance and lowest hysteresis of our proportional valve product line, while still utilizing award winning, single armature design, ensuring virtually frictionless performance and longevity tested at over 100 million cycles. This valve differs from the High Flow Proportional Valve in that it uses a proportional valve and digital valve in parallel. This parallel valve design offers great response times and high flow rates without the increased cost of a large valve housing, making it a good option for those in need of high volume proportional flow at larger hysteresis levels. An optional version incorporating our Valve Driver Board as an onboard device offers manual or electrical control with varying control voltages available.


Valve Function2-Way, Normally Closed
Electrical ConnectionFlying Wire Leads
Working Pressure1 to 100 psig (6.8 bar) (standard)
500 psig (custom)
Flow RangeConsult Factory
Orifice SizeConsult Factory
Voltage Range0-10 or 0-20 VDC
Response Time5 - 10 ms
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 Hysteresis2-3% of full current
Leak RateBubble Tight Seal
Type of OperationDirect solenoid
Filtration40 Micron Recommended
Weight1.0 lbs
Wetted MaterialsCold rolled stainless steel w/ electroless
nickel plating, brass and 304 stainless steel.
Power Supply Voltage12 or 24 volts
Power Required2.5 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.