Norgren R84G-4AT-RFN Pressure Regulator - Relieving
Part Number: R84G-4AT-RFN
Quick Summary
R84G-4AT-RFN pressure regulator provides precise air pressure control for compact automation systems. Engineers often wrestle with bulky regulators that add weight and struggle to hold settings under fluctuating demand. This Excelon Plus unit is designed to align with common industry standards, offering safe venting and dependable performance in CE- and IP-related environments when specified. Featuring a 1/2" PTF port and a T-bar adjustment, it delivers reliable control in tight spaces while minimizing panel footprint. For procurement, the solution supports compatibility with mounting brackets and service kits, helping you reduce installation time and improve uptime across automation applications.
Product Information
Extended Description
R84G-4AT-RFN Norgren: Reduced weight and size | A flexible modular system | T-bar adjustment
Medium
Compressed air
Operating Temperature
-20 ... 65 °C, -4 ... 149 °F
Port Size
1/2" PTF
Gauge Port
1/8" PTF
Adjustment
T-bar
Maximum Inlet Pressure
20 bar
Outlet Pressure Adjustment
0.3 ... 4 bar, 4 ... 58 psi
Relieving / Non Relieving
Relieving
Flow
125 dm3/sec, 265 scfm
Materials - Adjusting Knob
Zinc plated steel
Materials - Body
Diecast aluminium
Materials - Bonnet
POM
Materials - Elastomers
Nitrile rubber
Dimensions - Height
186 mm
Dimensions - Length
70 mm
Dimensions - Width
74 mm
Weight
0.79 kg
Country of Origin
United Kingdom
Range
R84G
Series
Excelon Plus
Brand
IMI Norgren
840048-89KIT
Excelon Plus Panel Nut
840100-01KIT
Excelon Plus Gauge Adaptor Kit - 1/8" PTF
840024-50KIT
Excelon Plus General Mounting Bracket
840014-51KIT
Excelon Plus Quikclamp
840014-52KIT
Excelon Plus Quikclamp with Bracket Assembly
840068-51KIT
Excelon Plus Neck Mounting Bracket and Panel Nut
FRLB84-KIT
Excelon Plus R84/B84 Elastomer Service Kit
Feature: Compact, lightweight design of the Excelon Plus regulator reduces panel footprint and overall weight. Business Impact: Enables denser layouts, easier installation, and lower shipping costs for multi-station systems. Application: Ideal for compact pneumatic circuits in control panels and automated tooling. Long-tail keywords: compact pneumatic regulator, Excelon Plus, 1/2 inch PTF, lightweight regulator. Feature: Adjustable outlet pressure from 0.3 to 4 bar with a T-bar knob. Business Impact: Precise pressure setpoints reduce part wear and improve process stability, cutting downtime and waste. Application: Fine-tuned control for gripping, clamping, and tool actuation in automated lines. Long-tail keywords: adjustable pressure regulator, precision pneumatic control, 0.3–4 bar regulation. Feature: Relieving operation ensures safe venting when discharge is required. Business Impact: Enhances system safety and prevents over-pressurization in transient events, boosting reliability. Application: Critical in lines with rapid valve actuation and line clearance. Long-tail keywords: relieving regulator, safe venting, pressure relief. Feature: Robust materials and build: diecast aluminium body, zinc plated steel adjusting knob, nitrile elastomer seals. Business Impact: Durable performance in industrial environments, reduced replacement intervals, and lasting calibration. Application: Suitable for medium-duty automation environments. Long-tail keywords: rugged pneumatic regulator, durable regulator, nitrile elastomer seals. Feature: Comprehensive compatibility with mounts and gauges via Excelon Plus accessory kits. Business Impact: Simplifies installation and service, lowers commissioning time, and supports scalable automation architectures. Application: Works with 840024-50KIT mounting brackets, 840100-01KIT gauge adaptor, and related accessories. Long-tail keywords: mounting kit, gauge adaptor kit, Excelon Plus accessories. Feature: Clear specifications for flow and porting enable predictable performance in system design. Business Impact: Improves sizing accuracy, energy efficiency, and consistency across machines. Application: Suitable for high-flow pneumatic loops and tool feeds. Long-tail keywords: regulator flow 125 dm3/s, 265 scfm, 1/2" PTF port, 1/8" gauge port.
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FAQs
Yes. The regulator features a 1/2" PTF port and a 1/8" PTF gauge port. For convenient gauge integration, use the Excelon Plus Gauge Adaptor Kit - 1/8" PTF (840100-01KIT) along with mounting brackets such as 840024-50KIT to simplify installation and ensure reliable gauge readings in tight panels.
The outlet pressure adjusts from 0.3 to 4 bar (4 to 58 psi) via the T-bar knob. This enables precise control for tooling and actuators, reducing cycle variation and wear. When integrating into a control system, pair with compatible mounting and gauge accessories to monitor and maintain stability across the line.
Operating medium is compressed air, with a range of -20 to 65 °C (-4 to 149 °F). The maximum inlet pressure is 20 bar. This combination supports reliable performance in typical industrial environments while allowing safe venting in relieving configurations for quick system response.
This model is a relieving regulator, which vents excess pressure to atmosphere when the setpoint is exceeded. This feature improves safety and protects downstream components in dynamic pneumatic circuits, particularly where line pressure can spike during tool changes or rapid actuation.
A range of Excelon Plus accessories exist, including Excelon Plus Panel Nut (840048-89KIT), Gauge Adaptor Kit (840100-01KIT), General Mounting Bracket (840024-50KIT), Quikclamps (840014-51KIT, 840014-52KIT), and Neck Mounting Bracket with Panel Nut (840068-51KIT). Elastomer service kits FRLB84-KIT are available for maintenance, ensuring long-term uptime and easy serviceability.