Norgren R84G-4GT-RFN Pressure Regulator - Relieving
Part Number: R84G-4GT-RFN
Quick Summary
R84G-4GT-RFN pressure regulator provides precise compressed air control for automation systems. In practice, engineers face space constraints, heavy panels, and slow commissioning that eat into uptime. Certifications customers seek include SIL readiness, CE compliance, and IP protection ratings to ensure safety and conformity in harsh environments. The Excelon Plus family brings a compact, modular design, a lightweight diecast aluminium body, and a simple T-bar adjustment, enabling quicker installation and easier upgrades. This combination supports scalable automation projects while reducing maintenance and total ownership costs across general pneumatic circuits, robotics, and manufacturing lines.
Product Information
Extended Description
R84G-4GT-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
G1/2
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
840048-89KIT
Excelon Plus Panel Nut
840100-02KIT
Excelon Plus Gauge Adaptor Kit - Rc 1/8"
840014-51KIT
Excelon Plus Quikclamp
840014-52KIT
Excelon Plus Quikclamp with Bracket Assembly
840068-51KIT
Excelon Plus Neck Mounting Bracket and Panel Nut
840024-50KIT
Excelon Plus General Mounting Bracket
FRLB84-KIT
Excelon Plus R84/B84 Elastomer Service Kit
Feature → Business Impact → Application: The unit’s compact, lightweight diecast aluminium body reduces panel footprint and overall weight, improving enclosure layout and serviceability in confined spaces across automotive, packaging, and assembly lines. Feature → Business Impact → Application: G1/2 port size ensures compatibility with standard pneumatic tubing and fittings, simplifying integration with existing manifolds and quick-connect systems on complex automation cells. Feature → Business Impact → Application: T-bar adjustment provides fast, repeatable setpoint changes during line-up and changeovers, cutting commissioning time and downtime in high-mix environments. Feature → Business Impact → Application: Relieving function protects downstream components by venting excess pressure, reducing risk of regulator-induced failures in molding, stamping, and conveying lines. Feature → Business Impact → Application: 0.3–4 bar outlet range, 20 bar inlet pressure, and 125 dm3/sec flow support a broad spectrum of general-purpose circuits, enabling reliable control across multiple actuators and zones. Feature → Business Impact → Application: Excelon Plus materials and build—zinc-plated knob, nitrile elastomers, and a robust aluminium body—yield long service life in challenging factory environments, lowering maintenance frequency and part replacement costs. Feature → Business Impact → Application: Modular mounting options and accessory kits (Quikclamps, gauge adapters, mounting brackets) simplify retrofits and expansions, delivering faster installations and consistent performance in evolving lines.
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FAQs
Install begins with selecting the appropriate Mounting Kit from the Excelon Plus range (for example 840014-51KIT Quikclamp or 840024-50KIT General Mounting Bracket). Position the regulator so the T-bar is accessible for adjustment, connect a G1/2 supply line, and attach the Rc1/8 gauge port for monitoring. Use the corresponding panel nut and spacers if space is tight. The modular mounting approach simplifies future expansions and service.
The regulator provides a stable output within 0.3 to 4 bar, suitable for general pneumatic circuits and multiple actuators. With a 20 bar maximum inlet, it tolerates common plant supply fluctuations without overpressurizing downstream devices. The 125 dm3/sec flow (265 scfm) supports moderate to high-demand lines, reducing the risk of pressure drop during peak operation and improving process consistency.
Yes. The Excelon Plus R84G-4GT-RFN combines a compact diecast aluminium body with a modular system, making it ideal for robotic cells and packaging lines where space is at a premium. The T-bar adjustment enables rapid setpoint changes, and the reliving function protects the system from overpressure during dynamic cycles, contributing to higher uptime in high-mix environments.
This product is designed to meet common industrial safety and performance expectations for pneumatic regulators. While specific market certifications depend on regional requirements, customers typically look for CE marking and compatibility with SIL and IP-rated environments. Always verify local regulatory compliance for your application and consider the Excelon Plus family’s documented support for standard industry practices.
Maintenance is simplified by the availability of the Excelon Plus elastomer service kit FRLB84-KIT and modular mounting options, which reduce downtime during seal or component replacements. The lightweight, robust construction minimizes wear, while quick-set pressure adjustment reduces calibration time after changes. Over time, these factors translate to lower maintenance cost and faster return on investment across multiple lines.