Norgren R74G-4AK-RMN Excelon Regulator - Relieving

Part Number: R74G-4AK-RMN
Manufacturer
Norgren
Part number
R74G-4AK-RMN

Quick Summary

Norgren R74G-4AK-RMN Excelon pressure regulator provides precise air control for automation and manufacturing processes. Engineers often struggle with unstable downstream pressure when lines dead-end or cycle, leading to tool inconsistency and wasted energy. The Excelon family targets critical standards, with CE compliance, robust IP-rated construction, and SIL-ready compatibility to help ensure safe, reliable operation in harsh environments. This model offers inline or modular installation and a knob-adjustment interface that reduces setup time and misadjustment risk. With a 1/2 inch port and a pressure range of 0.3 to 10 bar, it fits compact control panels while delivering repeatable performance and reduced downtime across high-demand applications.

Product Information

Extended Description

R74G-4AK-RMN 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
1/2" PTF
Gauge Port
1/4" PTF
Adjustment
Knob
Maximum Inlet Pressure
20 bar
Outlet Pressure Adjustment
0.3 ... 10 bar, 4 ... 145 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
Range
R74G
Series
Excelon
Brand
IMI Norgren
4314-51
Quikclamp
4355-51
Tamper Resistant Cover and Wire
4314-52
Quikclamp with wall mounting bracket
4368-51
Neck Mounting Bracket
4324-50
'Universal' Bracket
R74G-KITR
Service kit R74G
R84G-4AK-RMG
Excelon Plus general purpose pressure regulator, 1/2 PTF, 0.3-10 bar, integrated gauge
R84G-4AK-RMN
Excelon Plus general purpose pressure regulator, 1/2 PTF, 0.3-10 bar, without gauge
Feature: Inline or modular installation from the Excelon design enables flexible deployment across both compact control panels and larger modular racks. Benefit: Simplifies retrofits and new builds alike, reducing installation time and space requirements in automated lines. Application: Ideal for inline air regulation in small footprint automation cells and header manifolds. Feature: Balanced valve design delivers stable, repeatable downstream pressure. Benefit: Improves tool accuracy and process consistency, cutting scrap and rework while maintaining energy efficiency. Application: Critical for precision pneumatic feeds to actuators and grippers in pick-and-place systems. Feature: Relieving configuration supports downstream pressure relief when the system is dead-ended. Benefit: Protects equipment and piping from pressure spikes, reducing maintenance costs and downtime. Application: Useful in shutoff scenarios and unmanned cycle operations. Feature: Push-to-lock adjusting knob with tamper-resistant accessory enhances security against unwanted changes. Benefit: Maintains setpoints in environments with multiple operators or controlled processes, ensuring compliance and traceability. Application: Regulated production lines and cleanroom-compatible installations. Feature: Durable construction using diecast aluminium body and bonnet with nitrile elastomer seals and acetal knob. Benefit: Extends service life in demanding environments while resisting wear and chemical exposure. Application: Industrial facilities with frequent cycling and moisture exposure. Feature: Flow capacity and inlet range support common automation workflows—105 dm3/sec (222 scfm) at up to twenty bar inlet. Benefit: Ensures adequate supply for multiple actuators and manifolds without pressure drop, enabling scalable system design. Application: Medium to high-demand pneumatic networks in robotics and packaging lines.

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FAQs

The R74G-4AK-RMN is designed for both inline and modular installation. Use the 1/2 inch PTF ports for the main connections and consider the optional gauge port at 1/4 inch PTF if you need real-time pressure monitoring. Ensure clean, dry air, proper thread sealing, and secure mounting to prevent vibration that could affect setpoint stability.
The regulator provides an adjustable outlet range from three tenths to ten bar. Use the knob to set the desired setpoint within this range; the relieving design helps maintain downstream pressure control even during transient demands, reducing fluctuations and tool inconsistency.
Yes, the Excelon R74G-4AK-RMN family is built with a diecast aluminium body and bonnet and nitrile elastomer seals, offering robust performance in demanding environments. For environments requiring additional protection, consider compliant mounting hardware and certified accessories from the accessory catalog to enhance ruggedness and IP protection as needed.
Verify CE compliance and any region-specific certifications relevant to your installation, and check whether SIL readiness applies to your safety architecture. Always consult the official datasheet for current certification mappings and installation guidelines to ensure regulatory alignment for your application.
The robust Excelon design reduces maintenance frequency through durable materials and tamper-resistant adjustment, leading to lower downtime and fewer calibration events. While exact ROI depends on usage, users typically experience improved tool consistency, lower waste, and reduced energy losses due to steadier downstream pressure in automated lines.