Norgren R73G-4AK-RSN pressure regulator - Relieving
Part Number: R73G-4AK-RSN
Quick Summary
Norgren R73G-4AK-RSN Excelon pressure regulator is a precision device for stable downstream pressure in automated air systems. Fluctuating pressure in lines can cause tool wear, inconsistent outputs, and energy waste, but this regulator helps minimize those risks. The Excelon family supports CE-compliant installations and offers options that align with common IP-rated panels, while SIL-ready configurations can be achieved through system integration. In practice, the unit enables inline or modular installation, compatible with Quikmount and service aids, delivering safer, more reliable pneumatic regulation and improved total cost of ownership for manufacturing environments.
Product Information
Extended Description
R73G-4AK-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
1/2" PTF
Gauge Port
1/4" PTF
Adjustment
Knob
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
Acetal resin
Materials - Body
Diecast aluminium
Materials - Bonnet
Zinc
Materials - Elastomers
Nitrile rubber
Range
R73G
Series
Excelon
Brand
IMI Norgren
4315-03
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
R73G-KITR
Service kit R73G
Feature: Inline or modular installation capability. Business Impact: Reduces installation time and wiring complexity, enabling rapid deployment in new lines or retrofit projects. Application: Ideal for automated assembly cells and packaging lines where space is at a premium. Feature: Balanced valve design for precise pressure control. Business Impact: Improves regulation accuracy, minimizes pressure spikes, and extends tool life with consistent performance. Application: Critical in CNC-guided machining and robotics pneumatic circuits. Feature: Relieving (dead-end relief) capability. Business Impact: Protects downstream components from pressure surges when a line is dead-ended, reducing System downtime. Application: Pneumatic manifolds and safety-critical actuation zones. Feature: Knob adjustment with tamper-resistant accessories. Business Impact: Prevents unauthorized changes, ensuring stable operation and compliance with shop-floor policies. Application: Production floors with multiple shifts or high-turnover maintenance teams. Feature: 1/2" PTF port size with 1/4" gauge port and 0.7–17 bar outlet range. Business Impact: Allows flexible integration with standard pneumatic fittings and gauges, supporting precise setpoints for diverse tools. Application: Industrial automation, robotics, and packaging lines. Feature: Max inlet pressure of 20 bar and 60 dm3/sec flow. Business Impact: Supports high-demand air systems while maintaining efficiency, reducing compressor load. Application: Heavy-duty manufacturing environments and continuous-cycle applications. Feature: Robust materials (diecast aluminium body, zinc bonnet, acetal knob, nitrile elastomers) and accessory ecosystem (Quikmount, mounting nuts, tamper-resistant cover). Business Impact: Enhances durability, ease of maintenance, and modular expandability. Application: Harsh factory floors requiring dependable long-term performance.
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FAQs
The R73G-4AK-RSN is designed for inline or modular installation using standard 1/2" PTF ports. Start by selecting compatible mounting hardware (Quikmount options and mounting nuts) and attach the regulator to a clean, dry air line. Use the 1/4" gauge port for monitoring and adjust with the knob to your target 0.7–17 bar range. Ensure downstream components are rated for the set pressure and verify no kinks in line prior to initial start-up.
This regulator supports a maximum inlet pressure of 20 bar and provides an adjustable outlet range of 0.7–17 bar (approximately 10–247 psi). In practice, set the knob to the desired downstream pressure within this range and monitor with the 1/4" gauge port to ensure stable operation across automation equipment, cylinders, and actuators.
Yes. The Excelon regulator is designed to work with Quikmount pipe adapters and a range of mounting hardware, including Quikclamp, neck mounting brackets, and mounting nuts. This provides flexible, vibration-resistant installation and simplifies retrofits in existing lines without reworking piping.
The R73G-4AK-RSN aligns with common European CE requirements for pneumatic products and supports integration into IP-rated enclosures in typical automation environments. Always verify the exact certifications in the datasheet and with your regional compliance team, as certification scope can vary by region and configuration.
The balanced valve design and reliving function deliver stable downstream pressure and protect downstream tooling, reducing wear and downtime. Tamper-resistant adjustment helps prevent drift from unauthorized changes. Together with modular installation and durable materials, the unit lowers maintenance frequency and extends service life, contributing to lower operating costs and higher line uptime.