Norgren R84G-4AK-RMN Pressure Regulator - Relieving
Part Number: R84G-4AK-RMN
Quick Summary
Norgren R84G-4AK-RMN pressure regulator is a precision control device for compressed air systems in automation and manufacturing. It delivers stable outlet pressure across fluctuating supply conditions, helping tools perform consistently and reducing cycle variability. Engineers value its compact Excelon Plus design, including a push-to-lock, tamper-resistant adjustment knob and a lightweight, die-cast aluminum body for easy retrofits in tight spaces. This model is CE-compliant and supported by accessory kits that enable quick mounting, gauge adaptation, and service intervals. By combining robust materials, modular integration, and clear pressure ranges from 0.3 to 10 bar, it supports predictable performance while simplifying maintenance and ensuring regulatory compliance. Ideal for industrial automation, packaging lines, and pneumatic tooling.
Product Information
Extended Description
R84G-4AK-RMN Norgren: Reduced weight and size | A flexible modular system | Push to lock adjusting knob with built in tamper resistant feature
Medium
Compressed air
Operating Temperature
-20 ... 65 °C, -4 ... 149 °F
Port Size
1/2" PTF
Gauge Port
1/8" PTF
Adjustment
Knob
Maximum Inlet Pressure
20 bar
Outlet Pressure Adjustment
0.3 ... 10 bar, 4 ... 145 psi
Relieving / Non Relieving
Relieving
Flow
125 dm3/sec, 265 scfm
Materials - Adjusting Knob
Acetal
Materials - Body
Diecast aluminium
Materials - Bonnet
POM
Materials - Elastomers
Nitrile rubber
Dimensions - Height
167 mm
Dimensions - Length
74 mm
Dimensions - Width
70 mm
Weight
0.59 kg
Country of Origin
United Kingdom
Range
R84G
Series
Excelon Plus
Brand
IMI Norgren
840055-01KIT
Padlock
840055-02KIT
Padlock Hasp
840048-89KIT
Excelon Plus Panel Nut
840100-01KIT
Excelon Plus Gauge Adaptor Kit - 1/8" PTF
840024-50KIT
Excelon Plus General Mounting Bracket
840068-51KIT
Excelon Plus Neck Mounting Bracket and Panel Nut
840014-51KIT
Excelon Plus Quikclamp
840014-52KIT
Excelon Plus Quikclamp with Bracket Assembly
FRLB84-KIT
Excelon Plus R84/B84 Elastomer Service Kit
Relieving regulator with 1/2" PTF inlet and 1/8" gauge port provides safe venting of excess pressure, protecting downstream equipment and maintaining consistent output for sensitive tooling. This translates to fewer unplanned shutdowns and steadier process control in automated lines. The push-to-lock adjusting knob with tamper-resistant design minimizes accidental setting changes during maintenance or in high-vibration environments, reducing drift and re-calibration costs. The Excelon Plus body uses a die-cast aluminum construction and compact dimensions (74 mm L x 70 mm W x 167 mm H) with a light 0.59 kg weight, enabling easy retrofits and streamlined panel mounting in space-constrained cabinets. Compatibility with a broad accessory ecosystem—gauges, mounting brackets, and service kits—reduces installation time and simplifies ongoing maintenance. The regulator operates from −20 to 65 °C with a maximum inlet of 20 bar and outlet adjustment from 0.3 to 10 bar, delivering a flexible, long-life solution for general pneumatic circuits and OEM lines.
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FAQs
Plan for space to accommodate the 74 mm length, 70 mm width, and 167 mm height profile, with room for gauge monitoring via the 1/8 inch gauge port. Use the Excelon Plus mounting brackets kit to secure the regulator in panel or rack setups, ensuring proper alignment with downstream tubing and quick connect fittings.
Key specs include 0.3–10 bar outlet pressure range, maximum inlet pressure of 20 bar, 125 dm3/s (265 scfm) flow capacity, and reliving type operation. Inlet is 1/2 inch PTF and gauge port is 1/8 inch PTF, with operating temperature from −20 to 65 °C, making it suitable for most general automation environments.
Yes, within its rated operating range of −20 to 65 °C and standard Australian/North European industrial environments. The die-cast aluminum body and nitrile elastomer seals provide robust performance, while the reliving design helps manage pressure surges common in manufacturing lines, reducing the risk of downstream contamination or tool damage.
The R84G-4AK-RMN is CE-compliant, aligning with European safety and environmental requirements for pneumatic components. For complex compliance programs, integrate with the Excelon Plus accessory ecosystem to maintain traceability and documentation during commissioning and audits. If SIL or IP-rated configurations are required, verify available variants and coordinate with our technical team about option kits and integration with safety-related control systems.
The tamper-resistant knob minimizes drift between calibrations, reducing rework and maintenance calls. Accessory kits such as service elastomer packs and quick-clamp mounting shorten downtime during routine service. Overall, you gain consistent pneumatic performance, longer tool life, and predictable cycle times, supporting a faster return on investment in automation and packaging applications.