Norgren R73G-4GT-RMN Valves & Flow Control - Relieving
Part Number: R73G-4GT-RMN
Quick Summary
Norgren R73G-4GT-RMN Excelon relieving pressure regulator provides precise downstream pressure control for compressed air systems. Engineers often face fluctuating pressure that leads to tool wear, inconsistent machining results, and unplanned downtime. Certification notes include CE marking, RoHS compliance, and SIL-ready configurations available per variant, with exact details provided in the datasheet. The combination of inline or modular installation and a balanced valve design delivers predictable performance, while tamper-resistant adjustment adds security in regulated environments. This delivers tangible business value by improving process stability and reducing maintenance overhead, with easy integration into existing Excelon accessory ecosystems.
Product Information
Extended Description
R73G-4GT-RMN 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
0.3 ... 10 bar, 4 ... 145 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
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
R73G-KITR
Service kit R73G
Feature: Inline or modular installation options. Business Impact: Reduces installation footprint and simplifies retrofits, enabling faster deployment in existing pneumatic networks. Application: Inline machines and modular panel designs benefit from flexible mounting without sacrificing performance. Feature: Balanced valve design for tight pressure control. Business Impact: Improves regulation accuracy, reducing downstream fluctuations and tool wear. Application: Precise control in manufacturing cells and automation lines. Feature: Relieving pressure capability. Business Impact: Protects downstream components during dead-ended events, enhancing safety and system reliability. Application: Pneumatic actuators and tools where dead-end relief is required. Feature: Push-to-lock adjusting knob with tamper-resistant accessory. Business Impact: Prevents unauthorized or accidental pressure changes, ensuring consistent process conditions. Application: Regulated production environments and high-changeover setups. Feature: G1/2 port size and Rc1/8 gauge port. Business Impact: Standard piping compatibility supports quick integration with common compressed air systems. Application: New builds and upgrades across shop floors. Feature: Diecast aluminium body with zinc bonnet and nitrile elastomers. Business Impact: Robust construction withstands factory conditions, lowering maintenance needs. Application: Heavy-use pneumatic regulators in automotive, packaging, and electronics assembly. Feature: Flow capacity 60 dm3/sec (127 scfm) and maximum inlet pressure 20 bar. Business Impact: Adequate capacity for typical automation lines while maintaining margin for peak demand. Application: Medium-scale production lines and equipment feeds.
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FAQs
The R73G-4GT-RMN is designed for inline or modular installation within Excelon systems and works alongside compatible 3/2 valves such as T73T-4GA-P1N, as well as mounting accessories like 5191-88 mounting nut and 4314-51 Quikclamp. This enables flexible retrofits and streamlined panel layouts without additional custom hardware.
Key specs include a G1/2 port size, Rc1/8 gauge port, and an outlet pressure range of 0.3 to 10 bar with a maximum inlet pressure of 20 bar. The device provides a flow capacity of 60 dm3/sec (127 scfm), making it suitable for typical automation and tooling applications in compressed air systems.
Yes. The R73G-4GT-RMN is a relieving model designed to reduce downstream pressure when the system is dead-ended, helping protect downstream components and improve safety in pneumatic circuits and automated lines.
Norgren offers a dedicated service kit for the R73G series, labeled R73G-KITR, which simplifies routine maintenance and part replacements. Regular maintenance, guided by the datasheet, helps sustain regulation accuracy and minimizes unplanned downtime.
The regulator uses a diecast aluminium body, zinc bonnet, zinc-plated adjusting knob, and nitrile rubber elastomers, providing robust performance in industrial environments. It supports inline installation and is compatible with Excelon mounting accessories and standard pneumatic fittings to help ensure long-term reliability.