Norgren R74G-6GK-RFN Pressure Regulator - Without Gauge
Part Number: R74G-6GK-RFN
Quick Summary
R74G-6GK-RFN pressure regulator from Norgren delivers precise downstream pressure control for compressed air systems. In busy production lines, engineers often struggle with set-point drift and gauges that aren’t easily read, which can lead to variability and waste. The Excelon family is designed with CE conformity and robust IP-rated variants, with SIL-ready configurations available on select models to meet broader safety standards. The result is reliable regulation and consistent performance, reducing tool wear and downtime. This combination of inline flexibility and a tamper-resistant knob delivers real business value in OEM panels, automation cells, and retrofit projects.
Product Information
Extended Description
R74G-6GK-RFN Norgren: Excelon design allows in-line or modular installation | Balanced valve design for optimum pressure control | Standard relieving models allow reduction of downstream pressure when the system is dead-ended | Push to lock adjusting knob with tamper resistant accessory
Medium
Compressed air
Operating Temperature
-34 ... 80 °C, -29 ... 176 °F
Port Size
G3/4
Gauge Port
Rc1/8
Adjustment
Knob
Maximum Inlet Pressure
20 bar
Outlet Pressure Adjustment
0.3 ... 4 bar, 4 ... 58 psi
Relieving / Non Relieving
Relieving
Flow
105 dm3/sec, 222 scfm
Materials - Adjusting Knob
Acetal resin
Materials - Body
Diecast aluminium
Materials - Bonnet
Diecast aluminium
Materials - Elastomers
Nitrile rubber
Dimensions - Height
74 mm
Dimensions - Length
170 mm
Dimensions - Width
80 mm
Weight
0.78 kg
Country of Origin
Mexico
Range
R74G
Series
Excelon
Brand
IMI Norgren
4355-51
Tamper Resistant Cover and Wire
4368-51
Neck Mounting Bracket
4314-51
Quikclamp
4314-52
Quikclamp with wall mounting bracket
4324-50
'Universal' Bracket
R74G-KITR
Service kit R74G
R84G-6GK-RFG
Excelon Plus general purpose pressure regulator, G3/4, 0.3-4 bar, integrated gauge
R84G-6GK-RFN
Excelon Plus general purpose pressure regulator, G3/4, 0.3-4 bar, without gauge
Feature: Excelon design allows inline or modular installation, enabling plug-and-play integration across small cells or large networks. Business impact: reduces installation time and spare parts diversity, accelerating time-to-value. Application: ideal for OEM panels, line-side regulators, and retrofit projects in manufacturing facilities. Feature: Balanced valve design delivers steady downstream pressure with minimal drift under changing loads. Business impact: improves process stability and tool life, reducing scrap and rework. Application: critical pneumatic circuits in packaging lines, robotics stations, and material handling systems. Feature: Relieving model protects downstream equipment by venting when the system is dead-ended. Business impact: minimizes risk of over-pressure events and equipment damage, ensuring safer operation. Application: automation lines where backpressure events can occur during stops or maintenance. Feature: Push-to-lock knob with tamper resistant accessory enhances security in shared facilities. Business impact: prevents accidental or unauthorized changes, preserving calibration and extending component life. Application: maintenance rooms, multi-user facilities, and OEM environments with strict change control. Feature: Robust materials and precise specs—acetal adjusting knob, die-cast aluminium body and bonnet, nitrile elastomer seals; operating range -34 to 80°C; inlet up to 20 bar; G3/4 port; Rc1/8 gauge port; 0.3–4 bar output. Business impact: durable performance in diverse environments and simplified procurement through a single, compatible regulator family. Application: general-purpose regulation across a wide range of tooling, machines, and automation cells.
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FAQs
R74G-6GK-RFN supports both inline and modular installation, enabling flexible deployment from compact OEM panels to larger automation banks. Its G3/4 port size and compact foot print simplify integration with standard manifold blocks and existing piping. Compatible mounting options include neck brackets and quick-clamp solutions, which accelerate commissioning and reduce field retrofit effort while preserving a clean, serviceable installation.
Key specs include a G3/4 port size, Rc1/8 gauge port, knob-adjusted outlet from 0.3 to 4 bar, and a maximum inlet pressure of 20 bar. The regulator handles compressed air at temperatures from -34 to 80°C (-29 to 176°F) and provides a flow of 105 dm3/s (222 scfm). It is designed for relieving regulation and supports the Excelon build standard for robust industrial use.
Yes. The R74G-6GK-RFN is a relieving model, engineered to vent downstream pressure when the system is dead-ended, protecting downstream components and reducing the risk of over-pressure events. This makes it well-suited for automation lines and test benches where occasional dead-heading or rapid load changes can occur without compromising safety.
The product family offers a range of mounting and security accessories including Tamper Resistant Covers (4355-51) and neck mounting brackets (4368-51), Quikclamp variants (4314-51/52), and universal brackets (4324-50). A service kit (R74G-KITR) is also available to support routine maintenance and quick field servicing, helping to minimize downtime and extend regulator life.
The combination of a tamper-resistant knob, reliable Excelon design, and available service kits reduces calibration drift and execution downtime, improving line availability and tool life. By delivering stable downstream pressure and quick maintenance, the regulator helps lower scrap rates, shorten changeover times, and lower total cost of ownership over the system’s life.