Norgren R84G-3GT-RFE Pressure Regulator - Relieving
Part Number: R84G-3GT-RFE
Quick Summary
Norgren R84G-3GT-RFE pressure regulator is designed to deliver precise compressed air control for automation and manufacturing lines. Engineers often battle drift, over-pressure events, and integration headaches when sensors aren’t seamlessly wired into the control loop. The Excelon Plus family combines an integrated electronic pressure sensor, a compact die-cast aluminium body, and a flexible T-bar adjustment to simplify setup and reliability. Regional standards vary, but many users expect CE compliance and robust IP-rated enclosures, with SIL-ready options where applicable. By pairing this regulator with IO-Link capable modules, you gain real-time diagnostics and smoother data flow for Industry 4.0 initiatives, while keeping a lean bill of materials, reducing waste and downtime, and improving process performance.
Product Information
Extended Description
R84G-3GT-RFE Norgren: Reduced weight and size | Integrated electronic pressure sensor | A flexible modular system | T-bar adjustment
Medium
Compressed air
Operating Temperature
-20 ... 65 °C, -4 ... 149 °F
Port Size
G3/8
Gauge Port
Rc1/8
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
NC-ME-4A4B-12DLA
IO-Link master, EtherNet/IP interface
NC-HB-8A5F-12A0A
IO-Link I/O module, Standard
NC-HA-8A5F-12AAA
IO-Link I/O module, Auxillary power
NC-MP-4A4B-12DLA
IO-Link master, PROFINET interface
Feature: Integrated electronic pressure sensor enables real-time monitoring and closed-loop control. Benefit: Reduces wiring complexity and enables faster fault isolation, boosting overall system uptime on automated lines. Application: Packaging and assembly cells that demand tight pressure regulation with digital visibility. Long-tail keywords: integrated sensor regulator, IO-Link ready regulator. Feature: Excelon Plus modular design and compact die-cast aluminium body. Benefit: Space-saving installation with easy retrofits on crowded manifolds and retrofit projects. Application: Small to mid-size pneumatic manifolds in robotics and material handling. Feature: G3/8 port, T-bar adjustment, and weight of 0.79 kg. Benefit: Simple mechanical tuning with repeatable settings and straightforward mounting. Application: Panel-mounted regulators in conveyor systems and machine tools. Feature: Relieving type for safe venting and 0.3–4 bar outlet range (up to 20 bar inlet). Benefit: Quick pressure relief during cycle changes, safer operation, and consistent downstream performance. Application: High-cycle production lines requiring rapid response and accurate pressure control. Feature: Materials – body diecast aluminium, bonnet POM, elastomers nitrile rubber, adjusting knob zinc-plated steel. Benefit: Robust construction with good chemical compatibility and durable adjustment components. Application: Harsh factory environments with routine maintenance. Feature: IO-Link master and I/O module options available for digital integration. Benefit: Enhanced predictive maintenance, remote diagnostics, and streamlined integration into PROFINET/EtherNet/IP-enabled systems. Application: Industry 4.0 deployments and smart factory transitions. These features collectively support measurable improvements in efficiency, compliance readiness, and lifecycle cost reduction, backed by field-proven performance in compressed air systems.
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FAQs
Begin by mounting the regulator on a stable panel or manifold, ensuring the G3/8 port aligns with the supply line and the Rc1/8 gauge port is accessible for monitoring. Set the outlet to the desired 0.3–4 bar range using the T-bar adjuster, and confirm the maximum inlet pressure does not exceed 20 bar. Verify relieving venting is unobstructed and connect any IO-Link modules if digital monitoring is required. Typical installations require minimal additional components and benefit from the compact 186 mm height and 70 mm length to fit tight spaces.
Key specs include a pressure range of 0.3–4 bar with a maximum inlet of 20 bar, flow capacity of 125 dm3/sec (265 scfm), and relief-type operation for fast venting. Medium is compressed air, operating temperature ranges from -20 to 65 °C, and a gauge port Rc1/8. The unit weighs 0.79 kg and uses a G3/8 port with a T-bar adjustment for repeatable setpoints across typical industrial cycles.
IO-Link support is available through compatible IO-Link master and I/O modules listed in the IO-Link section (for example NC-ME-4A4B-12DLA, NC-HB-8A5F-12A0A, NC-HA-8A5F-12AAA, NC-MP-4A4B-12DLA). This enables digital monitoring, remote diagnostics, and easier integration with PROFINET or EtherNet/IP networks, reducing wiring complexity and enabling predictive maintenance in Industry 4.0 projects.
The regulator features a diecast aluminium body, a POM bonnet, nitrile rubber elastomers, and a zinc-plated steel adjusting knob, with a compact weight of 0.79 kg. This combination provides robust mechanical integrity, good chemical compatibility with dry compressed air, and reliable operation within the -20 to 65 °C range, making it suitable for many standard industrial environments.
Regular inspection of the adjusting knob and seals is advised, with attention to elastomer wear under high humidity or contaminated air. The integrated sensor reduces the need for separate wiring, simplifying diagnostics. When used in IO-Link configurations, use the corresponding masters and modules to monitor pressure trends and predict service intervals, which minimizes unplanned downtime and extends equipment life.