Norgren R73G-3GK-RFN Excelon Regulator - G3/8 Relieving
Part Number: R73G-3GK-RFN
Quick Summary
R73G-3GK-RFN is a general purpose pressure regulator designed for precise compressed air control in automation lines. When downstream pressure fluctuates or lines dead-end, unregulated systems cause actuator stalling, energy waste, and downtime. Typical Excelon regulators pursue CE compliance, SIL integrity, and rugged IP-rated enclosures to meet safety and reliability expectations. With inline or modular installation, a balanced valve design, and a tamper-resistant knob, it fits into existing lines with minimal rework, delivering improved stability and reduced energy use. This combination supports predictable machine cycles, easier commissioning, and lower maintenance costs over the life of a compressed air system. More efficiency.
Product Information
Extended Description
R73G-3GK-RFN 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
G3/8
Gauge Port
Rc1/8
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-3GK-RFG
Excelon Plus general purpose pressure regulator, G3/8, 0.3-4 bar, integrated gauge
Inline or modular installation enables quick integration into existing pneumatic circuits or new assemblies, reducing commissioning time and field wiring. This flexibility supports faster ROI on automation cells such as robotic pick-and-place lines and packaging conveyors. The balanced valve design minimizes pressure drop and hunting, delivering stable outlet pressure that reduces actuator wear and improves cycle times in CNC machines and clamping systems. The relieving feature protects downstream equipment when a system is dead-ended, lowering the risk of over-pressurization and enabling safer maintenance windows. A knob-adjustment with push-to-lock tamper resistance simplifies commissioning and maintains setpoint integrity on busy production floors. The Rc1/8 gauge port option allows in-line monitoring with standard gauges, while the robust die-cast aluminium body, zinc bonnet, and nitrile elastomer seals support reliability in harsh environments. With a 0.3–4 bar regulation range and a 20 bar maximum inlet, this regulator is designed for continuous operation in demanding industrial applications and long service life in compressed-air networks.
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FAQs
The R73G-3GK-RFN supports both inline and modular installation, allowing quick integration into existing pneumatic circuits or as a modular component in compact control panels. This flexibility reduces wiring and plumbing changes, enabling faster commissioning and easier retrofits in packaging lines, conveyors, and automated tooling setups.
Outlet pressure is adjustable from 0.3 to 4 bar, while the maximum inlet pressure is 20 bar. The regulator controls compressed air reliably within this range, delivering stable performance for most general automation tasks such as clamps, actuators, and grippers.
Yes, the model supports a gauge port option (Rc1/8) for monitoring outlet pressure with standard instrumentation. This is advantageous during commissioning and preventive maintenance, although some configurations may be specified without a gauge port depending on the exact build.
The regulator is designed for industrial use with a wide operating temperature range of -34 to 80 °C (-29 to 176 °F). Its die-cast aluminium body, zinc bonnet, and nitrile elastomer seals provide robust performance in challenging environments typical of machine tools, conveyors, and automated production lines.
The push-to-lock adjusting knob helps prevent unauthorized changes, contributing to consistent process control and reduced downtime. The balanced valve design improves pressure stability, reducing peak wear and energy waste. Inline/modular installation also shortens commissioning time, lowers wiring/plumbing costs, and supports easier field servicing in ongoing production operations.