Norgren R74G-3GK-NMN Excelon Pressure Regulator - 0.3–10 bar

Part Number: R74G-3GK-NMN
Manufacturer
Norgren
Part number
R74G-3GK-NMN

Quick Summary

Norgren R74G-3GK-NMN Excelon pressure regulator is designed to deliver precise compressed air pressure control in inline or modular installations. Engineers often face pressure drift and space constraints in compact automation skids, and a balanced valve helps keep downstream pressure stable. While product documentation does not list specific certifications, buyers in industrial settings typically look for CE conformity, robust mechanical design, and environmental protection to support safe operation. The Excelon family offers a push-to-lock, tamper-resistant knob for reliable field adjustments, and a non-relieving option suitable for dead-end systems. With a compact aluminium body and compatible mounting options, this regulator delivers consistent performance, reduces maintenance cycles, and supports scalable automation where predictable pressure control translates to efficiency and cost savings.

Product Information

Extended Description

R74G-3GK-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
G3/8
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
T74T-3GA-P1N
Excelon 3/2 modular system shut-off valve, G3/8
4316-52
Porting Block - Excelon 73/74 Series, Connection G1/4"
4315-10
Quikmount pipe adapter
4324-50
'Universal' Bracket
4368-51
Neck Mounting Bracket
4314-51
Quikclamp
4314-52
Quikclamp with wall mounting bracket
4355-51
Tamper Resistant Cover and Wire
4348-89
Panel Mounting Nut
Feature: Inline or modular installation enables flexible mounting and easy retrofits. Benefit: Reduces painel footprint and simplifies upgrades, saving time during system expansion and maintenance. Application: Ideal for control panels and modular pneumatic rigs needing compact, scalable pressure regulation. Feature: Balanced valve design provides stable pressure control under fluctuating supply conditions. Benefit: Delivers consistent downstream pressure, improving tool accuracy and repeatability in precision assembly lines. Application: Robotic grippers and end-effectors where tight tolerances are essential. Feature: Non-relieving operation maintains downstream pressure when the supply changes or is shut off. Benefit: Enhances dead-end protection and process stability, reducing risk of pressure spikes. Application: Industrial automation loops with potential line dead-ends. Feature: Push-to-lock adjusting knob with tamper-resistant accessory ensures secure calibration. Benefit: Prevents drift from accidental adjustments, reducing rework and maintenance frequency. Application: Maintenance-conscious facilities and regulated environments. Feature: Heavy-duty die-cast aluminium body with nitrile rubber elastomer seals delivers durability and a wide operating temperature range. Benefit: Long service life in harsh environments, minimizing replacement costs. Application: Heat-exposed or cold-start conditions in packaging, automotive, and general manufacturing. Feature: Flow capacity of 105 dm3/sec (222 scfm) supports moderate to higher demand pneumatic circuits. Benefit: Maintains performance under peak cycle rates, improving overall line throughput. Application: Conveyors, pick-and-place devices, and tooling stations. Feature: Gauge port Rc1/8 provides optional pressure monitoring for tight process control. Benefit: Enables quick validation of set pressure and system health. Application: Systems requiring visible feedback or diagnostics. _feature: Accessories and compatibility including Excelon 73/74 series options (e.g., 4316-52 porting block, 4315-10 Quikmount adapters) enable streamlined integration into existing manifolds. Benefit: Reduces sourcing complexity and allows plug-and-play upgrades. Application: Retrofit projects and multi-valve manifolds.

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FAQs

The regulator supports inline or modular installation with a G3/8 port and a Rc1/8 gauge port for optional monitoring. Mounting can be accomplished with compatible Excelon brackets (e.g., 4324-50 Universal Bracket) or panel adapters. Confirm space for the knob access, tighten fittings to spec, and connect the Rc1/8 gauge line if you require local pressure indication for set-point verification.
This model provides an outlet pressure adjustment range of 0.3 to 10 bar (4 to 145 psi) with a maximum inlet pressure rated up to 20 bar. It is a non-relieving regulator, suitable for maintaining steady pressure in systems where downstream pressure retention is essential, and it supports flow up to 105 dm3/s (222 scfm).
Yes, its balanced valve design, inline/modular installation capability, and tamper-resistant knob support stable pressure control critical for precision tooling and packaging lines. The 0.3–10 bar range covers common pneumatic needs, while the aluminium body and nitrile seals provide durability in mixed environments typical of automation cells.
Certification details are not listed in the provided data. For definitive information on CE conformity, SIL ratings, IP protection, and other certifications, consult the datasheet (https://cdn.norgren.com/pdf/en_8_200_200_R74G.pdf) or contact the supplier directly. Verify compliance against your plant's regulatory requirements before installation.
Maintenance is simplified by a tamper-resistant knob that maintains calibration and reduces drift. The die-cast aluminium body and nitrile elastomer seals offer reliable service across -34 to 80 C, minimizing replacement costs in typical environments. Regular inspection of the knob, seals, and gauge connections helps ensure consistent performance and predictable ROI from reduced downtime and rework.