Norgren P74F-4GA-NNN Valves & Flow Control - 3/2
Part Number: P74F-4GA-NNN
Quick Summary
Norgren P74F-4GA-NNN Excelon valve is a pilot-operated 3/2 dump valve for compressed air systems in automation projects. It helps engineers avoid startup surges and pressure spikes that can trigger unplanned downtime or wear on downstream equipment. The design aligns with the European Machinery Directive and PUWER, aiding compliant machine upgrades and safer operation. Built for reliability, it delivers controlled downstream pressure increase on startup while offering high forward flow and dump capacity. This makes it ideal for packaging lines, automation cells, and processing equipment, especially where quick integration with G1/2 ports and modular Norgren accessories is beneficial.
Product Information
Extended Description
P74F-4GA-NNN Norgren: Assists machine designers in complying with the European Machineries Directive | Can help existing machinery to comply with PUWER (Provision and Use of Work Equipment Regulations) | Controlled increase of downstream pressure on start up | High forward flow capacity | High flow dump capacity
Medium
Compressed air
Operating Temperature
-20 ... 80 °C, -4 ... 176 °F
Operating Pressure
3 ... 17 bar, 44 ... 247 psi
Port Size
G1/2
Actuation
Air pilot / Spring return
Valve operation
3/2
Flow
57 dm3/sec, 121 scfm
Materials - Body
Aluminium
Materials - Elastomers
Synthetic material
Dimensions - Height
74 mm
Dimensions - Length
144 mm
Dimensions - Width
84 mm
Weight
1.76 kg
Country of Origin
Czechia
Range
P74F
Series
Excelon
Brand
IMI Norgren
T74T-4GA-P1N
Excelon 3/2 modular system shut-off valve, G1/2
4314-51
Quikclamp
4314-52
Quikclamp with wall mounting bracket
MB004B
Quietaire heavy duty silencer male, R1/2
T40B1800
Quietaire sintered bronze silencer, R1/8
Feature: Medium is compressed air, which ensures a clean and consistent actuation path for pneumatic circuits, reducing moisture and contamination risks in critical lines. Business Impact: Improves predictability of startup sequences and extends component life by minimizing transient spikes. Application: Suitable for general automation equipment that relies on controlled pressure build-up during power-on and automatic shutdown sequencing. Feature: Operating temperature range of -20 to 80 °C enables use across diverse plants and climates, lowering the need for enclosure heating or cooling. Business Impact: Increases uptime and reduces climate-related derating, cutting maintenance visits. Application: Ideal for factory floors with variable ambient conditions. Feature: Port size G1/2 and 3/2 valve operation provide compact integration with standard modular manifolds and quick-change accessories. Business Impact: Simplifies installation, reduces footprint, and shortens commissioning time. Application: Efficient for compact automation cells and retrofits using Excelon components. Feature: Air pilot / spring return actuation delivers reliable cycling with fail-safe defaults. Business Impact: Improves safety and reset behavior after power loss, minimizing restart time. Application: Valuable in packaging, sorting, and pneumatic handling lines. Feature: High flow (57 dm3/sec) and dump capacity support rapid pressure transients. Business Impact: Supports faster machine start-up and smoother load acceptance with lower cycle times. Application: Critical for high-throughput production lines. Feature: Aluminum body and synthetic elastomers provide robust, lightweight construction. Business Impact: Reduces overall weight while maintaining mechanical integrity and chemical compatibility. Application: Fits in demanding industrial environments with long service life. Feature: Includes compatible accessories such as T74T-4GA-P1N, Quikclamp mounts (4314-51, 4314-52), silencers MB004B and T40B1800, enabling a complete installation solution. Business Impact: Shortens installation time and improves operator ergonomics and noise management. Application: Facilitates turnkey setups in new builds or upgrades.
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FAQs
What mounting options exist and how do you assemble with the 4314-51 Quikclamp or 4314-52 wall mounting? The Excelon series is designed for quick, vibration-resistant mounting. Use the 4314-51 clamp for direct panel mounting and 4314-52 for wall mounting, then attach MB004B or T40B1800 silencers as needed to meet noise requirements. Verify port alignment (G1/2) and ensure clean, dry compressed air supply to prevent performance loss.
Operating pressure range is 3 to 17 bar with a flow of 57 dm3/sec, port size G1/2, and a 3/2 valve operation. Operating temperature is -20 to 80 °C, making it suitable for diverse environments. It is air-pilot / spring-return actuated, ensuring reliable startup and a safe fail-safe position during power loss.
Yes. The Excelon P74F-4GA-NNN is specifically designed for controlled downstream pressure increase at startup, which reduces surges and helps packaging lines ramp smoothly. Its high forward and dump flow capacity supports rapid, consistent fill and unload cycles, while the 3/2 configuration fits compact packaging cell layouts.
The valve is designed to assist compliance with the European Machinery Directive (PUWER). This alignment helps machine builders and end-users meet regulatory requirements when upgrading or integrating pneumatic systems in automation environments.
Regular inspection of the air supply, seals, and mounting hardware is recommended. The robust aluminum body and synthetic elastomer seals offer good durability, while compatibility with Quietaire silencers and modular accessories supports noise control and serviceability. Consider periodic leak checks, filter maintenance, and verification of actuator response to ensure consistent performance and ROI.