Norgren R73G-3AK-NFN Pressure Regulator - 0.3–4 bar
Part Number: R73G-3AK-NFN
Quick Summary
Norgren R73G-3AK-NFN pressure regulator is designed to deliver stable compressed air pressure for automation lines. Fluctuating downstream pressure can cause inconsistent actuator performance and longer cycle times. Built on the Excelon platform with a balanced valve design and a push-to-lock knob, it supports inline or modular installation for flexible layouts. The non-relieving configuration protects systems from pressure creep and reduces downstream noise. This model aligns with typical Excelon applications in packaging, robotics, and machine tools, delivering reliable control in tight spaces. Key specs include a maximum inlet pressure up to 20 bar and an adjustable outlet range from 0.3 to 4 bar, supporting durable operation in harsh environments. Durable materials and tamper-resistant options aid long-term maintenance in industrial settings.
Product Information
Extended Description
R73G-3AK-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
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
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
4315-02
Quikmount pipe adapter
4461-50
Neck Mounting Bracket
4455-51
Tamper Resistant Cover and Wire
5191-88
Mounting nut
4314-51
Quikclamp
4314-52
Quikclamp with wall mounting bracket
4424-50
'Universal' Bracket
Feature: Balanced valve design provides precise pressure control. Business Impact: Reduces pressure fluctuations, improving actuator consistency and cycle times. Application: Robotics and packaging lines where repeatable actuation is critical. Feature: Inline or modular installation capability. Business Impact: Design flexibility with existing manifolds and compact spaces, accelerating commissioning. Application: New lines or retrofits in aerospace, automotive, or food & beverage manufacturing. Feature: Push-to-lock knob with tamper-resistant accessory. Business Impact: Simple, secure adjustment reduces inadvertent changes and maintenance calls. Application: Control panels and service rooms in high-traffic production areas. Feature: Non-relieving outlet. Business Impact: Protects downstream components from pressure creep in sensitive circuits. Application: Pneumatic circuits with delicate actuators. Feature: 3/8" PTF port and 1/4" gauge port. Business Impact: Broad compatibility with standard plumbing and monitoring devices. Application: General compressed air systems across multiple industries. Feature: Excelon body materials and seals. Business Impact: Durability in demanding environments lowers replacement costs. Application: Factory floors with vibration and temperature variation. Feature: Max inlet 20 bar; Outlet 0.3–4 bar; Flow 60 dm3/sec. Business Impact: Clear performance envelope supports reliable system design and energy efficiency. Application: High-throughput equipment such as packaging lines and CNC tooling. Feature: Accessory ecosystem (Quikmounts, mounting brackets, tamper-resistant covers). Business Impact: Faster installation, easier maintenance, and scalable mounting options. Application: Panel integration and machine retrofits across industrial facilities.
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FAQs
Installation can be performed in-line with existing piping or mounted modularly using compatible accessories. The Excelon design supports inline flow and easy integration with mounting options such as Quikmount adapters and neck brackets. Ensure correct flow direction, tighten fittings to spec, and verify that gauge ports remain accessible for pressure checks during commissioning.
The regulator provides an adjustable outlet from 0.3 to 4 bar, while the maximum inlet pressure is 20 bar. This combination supports stable control for most standard industrial pneumatic circuits and helps protect downstream actuators from pressure spikes.
Yes, this model is non-relieving, meaning it does not vent excess pressure to atmosphere when the setpoint is exceeded. This helps maintain a clean downstream pressure profile and reduces noise and potential contamination in sensitive pneumatic lines, which is advantageous for precision actuation and enclosed systems.
Key materials include a diecast aluminium body, zinc bonnet, acetal resin adjusting knob, and nitrile rubber elastomers, suitable for compressed air environments. Operating temperature ranges from -34 to 80 °C (-29 to 176 °F). With these specs, the regulator performs reliably in typical factory conditions and within standard industrial cycles.
A range of mounting accessories is available, including Quikmount pipe adapters (4315-02), neck mounting brackets (4461-50), tamper-resistant covers (4455-51), mounting nuts (5191-88), Quikclamp (4314-51), and wall-mount variants (4314-52), plus universal brackets (4424-50). These enable quick, secure installs and scalable configurations for panel or machine-side mounting.