Norgren R74G-6GK-NMN Excelon Pressure Regulator - Non-relieving
Part Number: R74G-6GK-NMN
Quick Summary
Norgren R74G-6GK-NMN Excelon pressure regulator is a compact G3/4 inline regulator for compressed air systems. In busy production lines, fluctuating supply pressure and dead-end conditions challenge actuator performance and equipment life. The Excelon design emphasizes reliability with a balanced valve for stable setpoints, standard relieving options, and a push-to-lock adjusting knob with tamper-resistant accessory. Its inline or modular installation capability, Rc1/8 gauge port, and a rugged diecast aluminium body support fast deployment in control panels and flexible plant layouts. Operating temperature ranges from -34 to 80 °C, and a 20 bar maximum inlet pressure gives designers headroom for common plant-air networks. This combination delivers consistent performance while reducing maintenance and downtime.
Product Information
Extended Description
R74G-6GK-NMN 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 ... 10 bar, 4 ... 145 psi
Relieving / Non Relieving
Non-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
4315-12
Quikmount pipe adapter
4316-52
Porting Block - Excelon 73/74 Series, Connection G1/4"
T74T-6GA-P1N
Excelon 3/2 modular system shut-off valve, G3/4
4324-50
'Universal' Bracket
4314-51
Quikclamp
4368-51
Neck Mounting Bracket
4314-52
Quikclamp with wall mounting bracket
4355-51
Tamper Resistant Cover and Wire
4348-89
Panel Mounting Nut
Feature: Balanced valve design for optimum pressure control → Business Impact: Minimizes downstream pressure fluctuations, improving actuator accuracy and system efficiency → Application: Critical in precision pneumatic controls for robotic cells and packaging lines. Feature: In-line or modular installation capability → Business Impact: Reduces footprint and simplifies integration into existing panels or piping runs → Application: Flexible mounting across plant networks. Feature: Non-relieving configuration → Business Impact: Maintains downstream pressure during dead-end conditions, enhancing process stability and safety → Application: Systems where venting the downstream is undesirable. Feature: Push-to-lock adjusting knob with tamper-resistant accessory → Business Impact: Prevents unintended pressure changes, reducing maintenance events and operator error → Application: Shared control panels and high-traffic maintenance zones. Feature: Gauge port Rc1/8 for testing and monitoring → Business Impact: Facilitates commissioning, diagnostics, and calibration → Application: Routine QA and performance verification. Feature: Durable diecast aluminium body with nitrile seals → Business Impact: Long service life in oily, abrasive environments, lowering replacement costs → Application: Harsh factory floors and continuous operation environments.
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FAQs
The R74G-6GK-NMN supports both inline and modular installations thanks to the Excelon design. Its G3/4 port size and Rc1/8 gauge port simplify integration with standard compressed-air systems, and the rugged diecast aluminium body supports mounting in control panels or directly in piping runs. For flexible mounting, you can utilize adapters like Quikmount 4315-12 as needed.
Key specifications include an outlet pressure adjustment range of 0.3 to 10 bar, a maximum inlet pressure of 20 bar, and a gauge port Rc1/8. The medium is compressed air, with an operating temperature range of -34 to 80 °C. The regulator is non-relieving, providing stable downstream pressure under normal operation and during transient events.
Yes, the R74G-6GK-NMN is non-relieving. This means it does not vent downstream pressure to atmosphere when the setpoint is adjusted or the upstream supply changes, which helps maintain consistent downstream pressure and improves control in sensitive pneumatic lines. It is particularly beneficial in packaged equipment and automation loops where venting could disrupt processes.
The regulator includes a push-to-lock adjusting knob and compatibility with tamper-resistant accessories to prevent unintended set-point changes during operation or maintenance. The robust Excelon construction provides reliable performance in harsh environments, and the option to add tamper-resistant covers enhances safety in shared or visitor-accessible control areas.
With a durable diecast aluminium body and nitrile seals, the R74G-6GK-NMN offers long service life in oily or abrasive plant environments, reducing replacement frequency. Its inline/modular flexibility, ease of commissioning via Rc1/8 gauge ports, and straightforward maintenance lowers downtime, speeds setup, and improves overall system uptime for high-demand pneumatic networks.