Norgren R84G-3AT-RSN Pressure Regulator - Relieving
Part Number: R84G-3AT-RSN
Quick Summary
Norgren R84G-3AT-RSN pressure regulator is a precision device that maintains stable compressed air pressure for automation systems. This helps eliminate actuator stalling and energy waste caused by fluctuating pressure in busy pneumatic lines. In procurement conversations you’ll want to verify CE compliance, IP protection levels, and SIL safety credentials when integrating with safety-critical systems. The Excelon Plus platform delivers a compact, lightweight package with a die-cast aluminium body and zinc-plated adjusting knob, while offering a flexible modular mounting approach. Tight tolerances and a T-bar adjustment enable repeatable setpoints, reducing commissioning time and overall lifecycle costs in manufacturing environments.
Product Information
Extended Description
R84G-3AT-RSN 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
3/8" PTF
Gauge Port
1/8" PTF
Adjustment
T-bar
Maximum Inlet Pressure
20 bar
Outlet Pressure Adjustment
0.7 ... 17 bar, 10 ... 247 psi
Relieving / Non Relieving
Relieving
Flow
125 dm3/sec, 265 scfm
Materials - Adjusting Knob
Zinc plated steel
Materials - Body
Diecast aluminium
Materials - Bonnet
Aluminium
Materials - Elastomers
Nitrile rubber
Dimensions - Height
186 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
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 pressure regulator with a 0.7–17 bar outlet range enables precise pressure control, reducing system fluctuations and air waste in automation lines. The T-bar adjustment ensures repeatable setpoints, which accelerates commissioning and minimizes process variation. This translates to improved actuator performance and lower energy consumption in high-speed pneumatic circuits. The 3/8" PTF port and 1/8" gauge port provide straightforward compatibility with standard pneumatic fittings, cutting installation time and reducing the need for adapters during panel mounting in compact spaces. A maximum inlet pressure of 20 bar supports diverse plant air networks, while the relieving function protects downstream components from overpressure spikes and potential damage. The Excelon Plus diecast aluminium body and nickel-plated components resist corrosion in demanding environments, extending service life with minimal maintenance. The lightweight construction, combined with ow-profile dimensions, simplifies retrofits and field mounting on existing tooling lines. Compatibility with mounting kits such as 840024-50KIT and neck panel mounts reduces installation complexity, while elastomer service kits FRLB84-KIT streamline maintenance. Industry-standard materials like nitrile elastomers balance performance with resistance to oil and solvents typical in factory air systems. The regulator’s 125 dm3/sec flow supports mid- to high-demand actuation, ensuring reliable performance in production environments. The combination of compact size, modularity, and robust materials makes it a preferred choice for engineers seeking predictable control, fast troubleshooting, and reduced total cost of ownership. Keywords addressed include Excelon Plus regulator, 3/8 inch pneumatic regulator, relieving pressure regulator, T-bar adjustment, panel mounting, and 20 bar inlet.
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FAQs
This regulator uses standard 3/8" PTF ports and 1/8" gauge ports, enabling straightforward integration into most existing pneumatic lines. It supports Excelon Plus mounting brackets and quickclamp options, which streamline panel installation and reduce required tooling. Users benefit from minimal adapter use and a more predictable fit when retrofitting into current housings.
The unit provides an adjustable outlet range of 0.7 to 17 bar with a maximum inlet pressure of 20 bar, suitable for general automation tasks. It relieves excess pressure to protect downstream components and maintain stable actuation. Flow capability is around 125 dm3/sec, supporting consistent performance across typical manufacturing cycles.
Yes. The R84G-3AT-RSN is a relieving pressure regulator, designed to vent excess pressure safely and maintain steady downstream pressure. This makes it particularly suitable for automated lines where rapid response and protection of actuators are critical, reducing the risk of overpressure events and extending component life.
For ongoing reliability, use the Excelon Plus Elastomer Service Kit FRLB84-KIT for elastomer refresh and sealing integrity. Regular inspection of the adjusting knob, gauge port fittings, and mounting hardware is advised. When retrofitting or reconfiguring mounting, reference the 840024-50KIT general mounting bracket and related components to ensure secure installation.
The compact diecast aluminium body, low weight, and modular mounting options reduce installation time and space requirements. The T-bar adjustment provides repeatable setpoints, decreasing commissioning time and variance in performance. Durable materials improve resistance to wear and environmental factors, lowering maintenance frequency and overall lifecycle costs in busy production environments.