Norgren R74G-4AT-RSN Pressure Regulator - Relieving
Part Number: R74G-4AT-RSN
Quick Summary
R74G-4AT-RSN pressure regulator delivers stable downstream pressure for compressed air systems in automation. Engineers often battle pressure spikes and dead-ended lines that disrupt cycles and shorten tool life. While such variability undermines productivity, Excelon's balanced valve design and relieving capability help maintain consistent pressure across demanding loads. Note: Certifications such as CE or IP depend on configuration; verify exact coverage in the datasheet. For buyers, the design translates to reduced maintenance, easier installation, and predictable performance in inline or modular panels. By choosing a regulator that handles up to 20 bar and delivers 0.7–17 bar output, you align with common plant air layouts. That alignment supports scalable automation projects and reduces the risk of rework as processes evolve.
Product Information
Extended Description
R74G-4AT-RSN 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 | Adjustment by T-bar
Medium
Compressed air
Operating Temperature
-34 ... 80 °C, -29 ... 176 °F
Port Size
1/2" PTF
Gauge Port
1/4" PTF
Adjustment
T-bar
Maximum Inlet Pressure
20 bar
Outlet Pressure Adjustment
0.7 ... 17 bar, 10 ... 247 psi
Relieving / Non Relieving
Relieving
Flow
105 dm3/sec, 222 scfm
Materials - Adjusting Knob
Plated steel
Materials - Body
Diecast aluminium
Materials - Bonnet
Diecast aluminium
Materials - Elastomers
Nitrile rubber
Range
R74G
Series
Excelon
Brand
IMI Norgren
4315-03
Quikmount pipe adapter
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
R74G-KITR
Service kit R74G
R84G-4AT-RSG
Excelon Plus general purpose pressure regulator, 1/2 PTF, 0.7-17 bar, integrated gauge
R84G-4AT-RSN
Excelon Plus general purpose pressure regulator, 1/2 PTF, 0.7-17 bar, without gauge
The Excelon R74G-4AT-RSN supports in-line or modular installation, which simplifies panel design and enables retrofits without costly redesigns. Business impact: speed to production, reduced installation risk, and a cleaner piping layout in automation cells. Application: OEMs and integrators deploying compact control panels with 1/2 in PTF supply and 1/4 in PTF gauge monitoring. A balanced valve design provides stable pressure control, improving repeatability for pneumatic actuators and grippers and reducing cycle variability in high-speed lines. Application: food and beverage filling lines, packaging systems, and automotive assembly. Relieving capability protects downstream circuits during dead-end events, lowering the risk of over-pressurization and enabling safe depressurization. Application: start/stop-heavy lines and tools subject to rapid load changes. The T-bar adjustment allows precise setpoints without external gauges, speeding tuning during commissioning. Application: panel commissioning and field service. Durable diecast aluminium body with nitrile elastomer seals supports long service life in hot and oily environments, reducing maintenance costs. Application: harsh factory floors and temperature cycles. Maximum inlet pressure is 20 bar with a 0.7–17 bar outlet range and 105 dm3/sec flow, enabling reliable performance across medium-to-high flow circuits. Application: multi-actuator networks and centralized plant air distribution.
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FAQs
The regulator is rated for up to 20 bar inlet pressure with outlet pressure adjustable from 0.7 to 17 bar. Adjustment is performed via a T-bar on the bonnet, allowing precise setpoints without external gauges. The unit uses a 1/2" PTF inlet and a 1/4" PTF gauge port for setup and monitoring.
Yes. The Excelon design supports both inline and modular installations, featuring a 1/2" PTF port and a 1/4" gauge port. This enables straightforward integration into existing lines and compact panels, reducing wiring and piping complexity during installation.
Key differentiators include a balanced valve design for stable output, relieving capability to protect downstream circuits during dead-end events, and a 0.7–17 bar adjustable output. Construction uses a diecast aluminium body with nitrile elastomer seals for robust industrial performance, making it well-suited for general purpose regulation in automation environments.
Ideal for general-purpose compressed air regulation in automation panels, packaging lines, and manufacturing cells where reliable pressure control and fast response improve actuator performance and cycle consistency. The 1/2 in inlet and 0.7–17 bar range support a wide spectrum of pneumatic circuits and downstream devices.
Documentation is available in the Downloads section of the product page: CAD files, Datasheet PDF, and Installation Guide. These resources help with mounting, wiring, and maintenance planning, ensuring correct integration and long-term performance.