Norgren R73G-4GT-RSN Excelon pressure regulator - Relieving
Part Number: R73G-4GT-RSN
Quick Summary
Norgren R73G-4GT-RSN is a general purpose pressure regulator designed for compressed air systems in manufacturing and automation environments. It stabilizes downstream pressure, reducing actuator chatter and protecting sensitive valves and cylinders from spikes. The Excelon line emphasizes inline or modular installation, tight pressure control, and reliable relieving in dead-ended conditions. CE conformity and robust construction support industrial compliance, while the potential for SIL-ready configurations supports safety-critical lines. A tamper-resistant push-to-lock adjusting knob reduces adjustment drift during busy shifts. Standard relieving capability helps manage downstream pressure when the system is dead-ended, enhancing overall plant safety. Designed for 20 bar maximum inlet and 0.7–17 bar adjustable outlet, installation is straightforward and predictable.
Product Information
Extended Description
R73G-4GT-RSN 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
G1/2
Gauge Port
Rc1/8
Adjustment
T-bar
Maximum Inlet Pressure
20 bar
Outlet Pressure Adjustment
0.7 ... 17 bar, 10 ... 247 psi
Relieving / Non Relieving
Relieving
Flow
60 dm3/sec, 127 scfm
Materials - Adjusting Knob
Zinc plated carbon steel
Materials - Body
Diecast aluminium
Materials - Bonnet
Zinc
Materials - Elastomers
Nitrile rubber
Range
R73G
Series
Excelon
Brand
IMI Norgren
R84G-4GT-RSN
Excelon Plus general purpose pressure regulator, G1/2, 0.7-17 bar, without gauge
Feature: Excelon design allows in-line or modular installation, enabling flexible layouts and faster wiring. Business Impact: Reduces installation time, minimizes panel space, and simplifies future expansions. Application: Ideal for compact packaging lines, CNC cells, and automation stations where space is at a premium. Paragraph 2: Feature: Balanced valve design delivers precise downstream pressure. Business Impact: Improves actuator precision, extends seal life, and reduces process variability. Application: Use in pneumatic cylinders on conveyors and pick-and-place tools. Paragraph 3: Feature: Relieving model reduces downstream pressure when dead-ended. Business Impact: Prevents pressure spikes and enhances safety. Application: Controllers and tool feeds susceptible to dead-end conditions. Paragraph 4: Feature: Push-to-lock adjusting knob aids tamper resistance. Business Impact: Maintains setpoint integrity across shifts. Application: Manufacturing floors with operator access. Paragraph 5: Feature: Gauge port Rc1/8 and G1/2 port size enable easy monitoring and integration. Business Impact: Facilitates maintenance, calibration, and traceability. Application: Service tasks and modular line expansions in industrial plants. Paragraph 6: Feature: Durable materials—die-cast aluminium body, zinc-plated knob, nitrile elastomers—support longevity. Business Impact: Reduces downtime from wear and leaks, lowers lifecycle costs. Application: Harsh environments and temperature fluctuations across plants.
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FAQs
The R73G-4GT-RSN supports inline or modular installation on G1/2 ports with a dedicated Rc1/8 gauge port for monitoring. To install, mount the regulator in the desired line, connect the G1/2 inlet and outlet, and fit the gauge port optional sensor if you require real-time pressure monitoring. The design minimizes footprint and simplifies retrofits in confined spaces.
This model provides an adjustable outlet range of 0.7 to 17 bar with relieving capability. Relieving ensures downstream pressure can be reduced when the system is dead-ended, protecting equipment from overpressure and reducing risk during process shuts or faults.
Yes. The balanced valve design delivers stable downstream pressure, minimizing oscillations and actuator wear. Combined with inline installation and tamper-resistant adjustment, it supports repeatable performance in packaging, automation, and tooling circuits where precise pressure control is critical.
Excelon regulators are designed for industrial environments with expectations of CE compliance and robust physical protection. Some variants offer SIL-ready configurations for safety-critical applications, and the family commonly supports dependable IP-rated housings. Verify the exact options on the datasheet or with your distributor for your specific model.
Durable die-cast aluminium bodies, nitrile elastomer seals, and zinc-plated adjusters reduce wear and leak risk, lowering maintenance frequency. The tamper-resistant knob preserves setpoints, reducing drift over time. Inline installation also shortens commissioning, leading to faster payback in automated lines and packaging operations.