Multi-Turn, High Accuracy, Pressure Regulator

Featured Product from Kelly Pneumatics, Inc.


Kelly Pneumatics, The Precision Pressure Regulator, is a multi-turn, high accuracy, pressure regulator for air and gases. The Precision Pressure Regulator’s unique, dual proportional valve design eliminates bleed to atmosphere, and offers true zero pressure output when deactivated. Internal proportional valves maintain regulated pressure with varying flow rates, meaning changes in supply pressure do not affect the downstream output pressure.

Zero-Bleed Precision Pressure Regulator 
FEATURES
  • No Bleed Rate to Atmosphere
  • High Precision output pressure control
  • Max Flow Capacity of 480 LPM
  • Quiet Operation
  • Bubble tight seal when deactivated; can be used as shut-off valve

The Precision Pressure Regulator, is a single-turn, high accuracy pressure regulator for air and gases. The regulator incorporates two internal proportional valves, offering significant improvements over other mechanical pressure regulators. The Precision Pressure Regulator’s unique, dual proportional valve design eliminates bleed to atmosphere, and offers true zero pressure output when deactivated. The internal proportional valves maintain regulated pressure with varying flow rates, meaning changes in supply pressure do not affect the downstream output pressure. Additionally, an internal microprocessor assists in maintaining precision output pressures during dynamic pressure changes to the system.

The incorporation of the proportional valve design and an internal microprocessor means that the regulated output pressure immediately and accurately adjusts to dynamic changes in supply pressure and flow rates. For many other precision regulators, the regulated pressure rises as the inlet pressure drops, and the regulated pressure drops as flow increases. Our precision regulator maintains extremely high accuracy, even if the inlet pressure fluctuates, or the flow rate changes dynamically. This feature incorporates a microprocessor controlled system that finitely adjusts the internal proportional valves to maintain high accuracy in dynamic conditions.

Specifications
Flow Capacity 480 lpm (at 100 psig supply / 20 psig regulated pressures)
Media Air and Other Inert Gases
Sensitivity 1/8" water (3.2 mm)
Bleed Rate None
Total Gas Consumption None
Effect of Supply Pressure Variation None
Maximum Supply Pressure 160 psig
Operating Temperature -20° to 160°F (-29° to 71°C)
Materials 6061-T6 Aluminum, Acetal, Brass, Delrin, Stainless Steel,
Plated Steel, Buna-N, FKM (Viton), Nylon reinforced mesh,
phenolic plastic (adjustment knob - no contact with medium)
Weight 1.5 lb (635 g)
Port Sizes 1/8" and 1/4" NPT
Output Pressure Range 0-25 psig (1.7 BAR), 0-40 psig (2.7 BAR), 0-60 psig (4 BAR), 0-120 psig (8 BAR), 0-150 psig (10 BAR)
Mounting Options Panel or Bracket Mounted
Power Requirements Includes Power Adapter (supplied via standard U.S. wall outlet)
Wiring Details
WiringDiagram2

* Omitted for Turn-Key Power Supply option

 

Terminal Number 1* 2 3 4
Lead Wire Color Brown White Blue Black
Function Power Supply Voltage Control Signal Ground Feedback Signal

 

Dimensions
RegulatorDimensions