Low Flow Electronic Pressure Regulator

HighFlowRegulator_Med_trans

Features

  • Vacuum Pressure Control Available
  • Low Volume Precision Pressure Control 
  • Electronic Performance Feedback
  • Quiet Operation
  • Dual Proportional Valve Design
  • Excellent Resolution and Repeatability

Kelly Pneumatics, Inc. offers a reduced cost, single or dual-valve design, Electronic Precision Pressure Regulator with I/P transducer control circuitry. Designed specifically for low volume flow rates, this regulator precisely controls both positive and negative outlet pressure ranges, even during dynamic changes in outlet flow rates. By utilizing either an externally supplied dynamic/static input signal or an on-board adjustable set-point value, the Low Flow Precision Regulator provides exceptional closed-loop, proportional, output pressure control characteristics.

Our regulators offer significant improvements over traditional dual on/off valve electronic regulators. Utilizing our patented proportional valve design for both internal fill and dump valves gives a smooth and accurate output pressure, as opposed to dual on/off valve designs that cause substantial shock waves in the regulated pressure signal. The KPI regulator can replace manual regulators, needle valves, and bleed valves or bleed orifice discreet component systems.

Specifications

Output Pressure Range-14.7 to 100 PSI
Pressure Accuracy+/- 1% or less (Full Span)
Linearity+/- 1% or less (Full Span)
Response Timeless than 250 milliseconds
(as low as 50 ms)
Max Flow Rate6 slpm / .25 scfm @ 100psi
Connections1/8" FPT, 1/4" FPT, 5/32" OD Tube Fittings or #10-32 Female Ports
Weight1.0 lb
Power Required12 or 24 VDC (Wire Leads); 110 VAC (Turnkey)
Current Required90 mA to 180 mA
Control Signal0-5 volts, 0-10 volts or 4-20 mA
Feedback Signal0-5 or 0-10 volts
Manual ControlAdjustable Potentiometer
Operating Temp.32-150 °F or 0-65 °C
Filtration40 Micron Recommended
Wetted MaterialsCold rolled stainless steel w/ electroless
nickel plating, brass and 304 stainless steel.

Wiring Details

WiringDiagram2

* Omitted for Turn-Key Power Supply option

Terminal Number1*234
Lead Wire ColorBrown WhiteBlue Black
FunctionPower Supply VoltageControl SignalGroundFeedback Signal

Dimensions

HFRDims
LFRDims

Performance Characteristics

LowFlowRegulatorCurve2

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