IMI Norgren R73G-4GK-NFN Regulator - Excelon 0.3–4 bar

Part Number: R73G-4GK-NFN
Manufacturer
Norgren
Part number
R73G-4GK-NFN

Quick Summary

The R73G-4GK-NFN Excelon general purpose pressure regulator delivers precise compressed air pressure control for automation equipment. Many teams struggle with setup drift, tamper risks, and downtime during adjustments. Excelon designs aim for CE compliance and robust reliability, with options that align with SIL-ready safety concepts and IP-rated housings. By enabling inline or modular installation and featuring a tamper-resistant adjustment, this regulator reduces misadjustments and maintenance interrupts. In practice, engineers gain predictable actuator performance across G1/2 piping, supporting consistent pneumatic system behavior and improved line productivity.

Product Information

Extended Description

R73G-4GK-NFN Norgren: Excelon design allows in-line or modular installation | Balanced valve design for optimum pressure control | 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
Knob
Maximum Inlet Pressure
20 bar
Outlet Pressure Adjustment
0.3 ... 4 bar, 4 ... 58 psi
Relieving / Non Relieving
Non-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
T73T-4GA-P1N
Excelon 3/2 modular system shut-off valve, G1/2
4316-52
Porting Block - Excelon 73/74 Series, Connection G1/4"
4315-11
Quikmount pipe adapter
5191-88
Mounting nut
4461-50
Neck Mounting Bracket
4455-51
Tamper Resistant Cover and Wire
4314-51
Quikclamp
4314-52
Quikclamp with wall mounting bracket
4424-50
'Universal' Bracket
Feature: Inline or modular installation capability → Business Impact: Simplifies integration into existing manifolds and new assemblies, reducing installation time by days in multi-spot setups. Application: Automotive assembly lines and packaging equipment benefit from rapid deployment and scalable layout options. The Excelon design supports in-line or modular mounting to fit confined spaces and evolving line layouts. Feature: Balanced valve design for stable pressure control → Business Impact: Improves regulator response and minimizes pressure fluctuation, boosting actuator consistency and reducing cycle time variability. Application: Pneumatic cylinders and grippers in high-speed transfer systems gain repeatable performance even with supply ripple. Feature: Knob with push-to-lock and tamper-resistant accessory → Business Impact: Deters unauthorized adjustments, lowering drift risk and compliance concerns. Application: Safety-critical pick-and-place stations where process integrity is essential. Feature: Gauge port Rc1/8 and stable range 0.3–4 bar → Business Impact: Enables quick local pressure verification and precise setpoint control, cutting maintenance checks and rework. Application: Precision clamping and sliding actuators in automated handling lines. Feature: High-quality materials and non-relieving design → Business Impact: Delivers durable performance in challenging environments, reducing replacement cycles and total cost of ownership. Application: Harsh industrial environments with exposure to oils, coolants, or temperature swings. Feature: 60 dm3/sec flow at 20 bar max inlet and -34 to 80 °C range → Business Impact: Supports higher throughput and broader operating conditions, decreasing bottlenecks in central plants. Application: General pneumatic systems requiring dependable maximum flow and wide temperature tolerance. Compatibility and installation advantages: Works seamlessly with Excelon 73/74 series accessories like T73T-4GA-P1N shut-off valves and 4316-52 porting blocks, enabling modular system expansions and cleaner control architectures. Real-world context: The integrated design minimizes leak paths and simplifies field servicing, a critical factor for plant uptime and ROI.

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FAQs

The R73G-4GK-NFN is designed to integrate with Excelon 73/74 series modular components, including shut-off valves like T73T-4GA-P1N and porting solutions such as 4316-52. This compatibility enables clean, scalable pneumatic manifolds and faster maintenance, reducing wiring or plumbing complexity in control panels and automated lines.
Key specs include a G1/2 port size, Rc1/8 gauge port, adjustment range of 0.3 to 4 bar (4 to 58 psi), maximum inlet pressure of 20 bar, non-relieving operation, and a flow of 60 dm3/s. The medium is compressed air, with an operating temperature range of -34 to 80 °C.
Yes. The Excelon R73G-4GK-NFN is designed for both inline and modular installation, allowing flexible mounting options in compact spaces. This dual capability supports quick reconfiguration on evolving lines and simplifies future expansions without reworking existing plumbing.
Excelon regulators are designed with industry reliability in mind, supporting common regulatory expectations such as CE-compliant construction. For safety-critical applications, consider SIL-capable safety configurations and verify IP rating requirements with your system integrator to ensure alignment with your plant’s safety and environmental standards.
The tamper-resistant knob reduces drift from unauthorized adjustments, lowering maintenance downtime. Its robust materials and non-relieving design contribute to longer service life in harsh environments. In practice, this translates to lower replacement costs, more consistent actuator performance, and faster line productivity, improving total cost of ownership over traditional regulators.