Norgren R73G-3AK-RFG Excelon Regulator - Relieving
Part Number: R73G-3AK-RFG
Quick Summary
Norgren R73G-3AK-RFG general purpose pressure regulator maintains stable downstream pressure in compressed air systems. In practice, engineers grapple with pressure fluctuations, tool performance variability, and dead-ended lines that disrupt automation uptime. While specific certifications for this unit aren’t listed here, Norgren Excelon products typically align with CE requirements and standard industry safety practices, offering reliable regulation and predictable behavior. The model supports inline or modular installation, providing flexible integration with existing panels or future-ready configurations. By delivering precise 0.3–4 bar outlet pressure and tamper-resistant adjustment, it helps reduce set-point drift, improve cycle times, and lower operating costs across manufacturing and process environments. This combination of compact design and robust materials adds value across OEMs and end users alike.
Product Information
Extended Description
R73G-3AK-RFG Norgren: Excelon design allows in-line or modular installation | Balanced valve design for optimum pressure control | Standard relieving models allow reduction of downstream pressure when the system is dead-ended | Push to lock adjusting knob with tamper resistant accessory
Medium
Compressed air
Operating Temperature
-34 ... 80 °C, -29 ... 176 °F
Port Size
3/8" PTF
Gauge Port
1/4" PTF
Adjustment
Knob
Maximum Inlet Pressure
20 bar
Outlet Pressure Adjustment
0.3 ... 4 bar, 4 ... 58 psi
Relieving / Non Relieving
Relieving
Flow
60 dm3/sec, 127 scfm
Materials - Adjusting Knob
Acetal resin
Materials - Body
Diecast aluminium
Materials - Bonnet
Zinc
Materials - Elastomers
Nitrile rubber
Range
R73G
Series
Excelon
Brand
IMI Norgren
R84G-3AK-RFG
Excelon Plus general purpose pressure regulator, 3/8 PTF, 0.3-4 bar, integrated gauge
Feature: Inline or modular installation flexibility allows rapid integration with existing piping or control panels, reducing commissioning time and retrofit costs. Business Impact: Shorter project timelines and lower capital expenditure; Applications: New lines, expansions, or retrofits in automated cells. Feature: Balanced valve design delivers stable pressure control with minimal pulsations, improving tool performance and process consistency. Business Impact: Higher first-pass yields and fewer part rejects due to inconsistent air supply; Applications: Precision pneumatic tooling and conveyance systems. Feature: Relieving model capability enables controlled pressure reduction when a downstream path is dead-ended or isolated. Business Impact: Enhanced safety and system protection, avoiding over-pressure events; Applications: Pneumatic circuits with potential dead-ends during maintenance. Feature: Adjustable outlet pressure from 0.3 to 4 bar with a 20 bar maximum inlet, plus a 1/4" gauge port for monitoring. Business Impact: Precise setpoint control and real-time diagnostics reduce downtime and tuning effort; Applications: Process lines requiring tight pressure bands. Feature: Push-to-lock adjusting knob with tamper-resistant accessory prevents unintended pressure changes. Business Impact:; Improved reliability in busy OEM environments and on the factory floor; Applications: Industrial equipment and robotics cells. Feature: Durable construction with die-cast aluminium body, zinc bonnet, acetal knob, and nitrile elastomer seals withstands demanding environments. Business Impact: Longer service life, lower replacement costs, and predictable performance; Applications: Harsh manufacturing floors and outdoor installations.
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FAQs
The R73G-3AK-RFG is designed for both inline and modular installation, supporting 3/8" PTF main ports and a 1/4" PTF gauge port. This flexibility allows mounting directly on existing piping legs or within pre-wired panels, enabling quick retrofits or scalable automation layouts without sacrificing performance or accessibility for maintenance.
Key specs include 3/8" PTF port size, 1/4" gauge port, outlet pressure range of 0.3–4 bar, maximum inlet pressure of 20 bar, flow around 60 dm3/s (127 scfm), relieving operation, and a knob-adjustment design. The unit is built for compressed air and operates across -34 to 80 °C, supporting robust industrial use.
Yes. This model is a relieving regulator, meaning it is capable of reducing downstream pressure when a line is dead-ended or otherwise isolated. This capability improves safety and protects downstream components from overpressure conditions while maintaining stable regulation during normal operation.
The push-to-lock adjusting knob includes a tamper-resistant accessory that prevents accidental or unauthorized changes to the pressure setpoint. This feature is particularly valuable in busy OEM environments, manufacturing floors, and applications where consistent process control is critical to quality and uptime.
Ideal for automation and manufacturing environments using compressed air, including pneumatic tooling, conveyors, robotics cells, and process lines requiring stable, adjustable pressure. Its inline/modular installation and reliving design support both new equipment and retrofits, delivering predictable performance and reduced total cost of ownership across OEMs and end users.