Norgren R73G-4GK-NMN Excelon Pressure Regulator - G1/2
Part Number: R73G-4GK-NMN
Quick Summary
Norgren R73G-4GK-NMN Excelon pressure regulator provides precise pressure control for compressed air systems in automation lines. Engineers often wrestle with unreliable inline installations, pressure drift, and access constraints in modular layouts. The Excelon design supports in-line or modular mounting, with CE-compliant options and SIL-rated configurations available where applicable; verify exact specification in the datasheet. The balanced valve design minimizes flow-induced fluctuations, improving regulation accuracy across varying loads, while the push-to-lock knob and tamper-resistant accessory deter unauthorized adjustments. This combination of robust materials and a compact footprint reduces maintenance costs and supports scalable automation across manufacturing and packaging environments.
Product Information
Extended Description
R73G-4GK-NMN 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 ... 10 bar, 4 ... 145 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
4316-52
Porting Block - Excelon 73/74 Series, Connection G1/4"
T73T-4GA-P1N
Excelon 3/2 modular system shut-off valve, G1/2
4315-11
Quikmount pipe adapter
4461-50
Neck Mounting Bracket
4455-51
Tamper Resistant Cover and Wire
4424-50
'Universal' Bracket
4314-51
Quikclamp
5191-88
Mounting nut
4314-52
Quikclamp with wall mounting bracket
Feature: G1/2 port size with a maximum inlet pressure of 20 bar. Benefit: Standardized connection to common air manifolds reduces installation time and external fittings, enabling faster setup on automated lines. Application: Inline lines and modular manifolds in assembly and packaging equipment. Feature: Outlet pressure adjustment from 0.3 to 10 bar (4 to 145 psi). Benefit: Precise, repeatable regulation across loading conditions minimizes part wear and improves process stability. Application: Pneumatic actuators and end-of-line valves in manufacturing cells. Feature: Non-relieving outlet design. Benefit: Maintains airway pressure at the point of use, improving safety and reducing pressure spikes during transients. Application: Critical control loops in automation and robotics. Feature: Balanced valve design. Benefit: Reduces hysteresis and drift, delivering consistent pressure control under varying flow demands. Application: High-cycle pick-and-place or packaging lines where stability matters. Feature: Push-to-lock adjusting knob with tamper-resistant accessory. Benefit: Prevents unauthorized or accidental pressure changes, reducing downtime and calibration visits. Application: Maintenance environments and controlled production cells. Feature: Durable construction with diecast aluminium body, zinc bonnet, and nitrile elastomer seals. Benefit: Robustness in challenging environments with wide operating temperatures. Application: Harsh factory floors and outdoor installations. Feature: Gauge port Rc1/8 and 60 dm3/s flow rating. Benefit: Enhanced monitoring capability and sufficient flow for multiple actuators without pressure drop. Application: Small to mid-size automation systems requiring reliable air supply.
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FAQs
The regulator fits standard G1/2 piping and can be mounted inline or as part of a modular Excelon system. Use the Rc1/8 gauge port for monitoring, ensure correct orientation, and secure connections with appropriate thread sealant to prevent leaks. Verify the installation against the provided datasheet and installation guide for best results.
Key specs include G1/2 port size, outlet adjustment from 0.3 to 10 bar, maximum inlet pressure of 20 bar, non-relieving operation, flow capacity of 60 dm3/s, and operating temperature range from -34 to 80 °C. The unit uses a balanced valve design for stable regulation and features a knob-adjustment with tamper-resistant options.
Yes. The Excelon design supports both inline and modular installations, enabling flexible deployment across evolving automation architectures. Its compact form, robust materials, and tamper-resistant adjustment enhance reliability in production cells, packaging lines, and process automation environments.
CE compliance is available for European installations, and SIL-rated configurations are offered where applicable. Always verify the exact certification and model options in the datasheet or datasheet PDFs listed in the product downloads to ensure alignment with your regulatory requirements and safety standards.
The push-to-lock knob prevents accidental or unauthorized adjustments, reducing drift and the need for frequent recalibration. This translates to lower maintenance labor, fewer production interruptions, and more consistent pneumatic performance across shifts, delivering measurable ROI in high-volume automation environments.