Norgren R84G-4AK-RFG Pressure Regulator - Integrated Gauge

Part Number: R84G-4AK-RFG
Manufacturer
Norgren
Part number
R84G-4AK-RFG

Quick Summary

The R84G-4AK-RFG pressure regulator from Norgren delivers precise compressed air control for automation applications. In crowded panels or retrofit projects, its reduced weight and flush-mounted integrated gauge streamline installation and service. The Excelon Plus family is designed to support CE compliance and SIL-ready configurations for critical applications, with robust operation across -20 to 65 C. This model also helps reduce downtime and energy waste through accurate regulation and easy field adjustments. Its flexible modular system enables simple kit-up with Excelon Plus mounting brackets and accessory options. With push-to-lock adjusting knob and tamper-resistant feature, you can maintain control integrity in production lines.

Product Information

Extended Description

R84G-4AK-RFG Norgren: Reduced weight and size | Flush mounted integrated gauge | 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 ... 4 bar, 4 ... 58 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
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Feature → Business Impact → Application: Integrated gauge (flush-mounted) enables rapid on-site pressure verification, reducing diagnostic time and production stops for machine tools and robotic cells. This supports faster changeovers and tighter process windows in high-mix manufacturing. Feature → The regulator’s 0.3–4 bar outlet range and 20 bar maximum inlet provide precise, adjustable pressure control while protecting downstream actuators from over-pressurization. Application: Pneumatic tooling and fine-tuned actuators in assembly lines benefit from reliable setpoints. Feature → Port sizes 1/2" PTF and 1/8" gauge port optimize compatibility with standard pneumatic fittings and diagnostic instrumentation. Application: System integrators gain straightforward panel wiring and easier retrofits in existing air networks. Feature → Push-to-lock knob with tamper-resistant design preserves pressure settings under vibration and incidental adjustment. Application: Critical production lines and safety-conscious environments maintain consistent performance. Feature → Diecast aluminium body with acetal knob, POM bonnet and nitrile elastomers delivers rugged durability and corrosion resistance. Application: Harsh industrial environments and long service life in continuous-operation plants. Feature → Compact dimensions (L 74 mm × W 70 mm × H 167 mm) and weight of 0.59 kg enable simple installation in tight spaces and retrofits. Application: Control nodes on small automation panels and crowded machine enclosures.

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FAQs

Install the regulator using standard 1/2 inch PTF fittings and secure the unit with compatible Excelon Plus mounting brackets. Connect the 1/8 inch gauge port for instrumentation, set the outlet to 0.3–4 bar, and ensure the inlet does not exceed 20 bar. Use the push-to-lock knob to lock the setting after adjustment to prevent drift in vibration-prone environments.
Key specs include medium: compressed air; maximum inlet pressure: 20 bar; adjustable outlet: 0.3–4 bar (4–58 psi); flow: 125 dm3/s (265 scfm); weight: 0.59 kg; operating range: -20 to 65 C; relieving type with flush-mounted integrated gauge for quick verification.
Yes, the unit’s compact diecast aluminium body, tamper-resistant knob and integrated gauge are designed to maintain stable pressure settings in dynamic applications. The modular Excelon Plus design also supports reliable mounting and compatibility with common mounting brackets, aiding vibration resistance in robotic lines.
The data indicates the Excelon Plus family is designed with industry-standard practices, including CE-related compliance and SIL-ready configurations where applicable. For exact certification scope and IP ratings, consult the datasheet or contact Norgren to confirm current certifications for your application.
Maintenance options include Elastomer Service Kits like FRLB84-KIT for elastomer replacement, as well as mounting accessories such as Excelon Plus panel nuts and general mounting brackets. These kits support extended service life, reduce downtime, and help maintain regulator accuracy over its service life.