Norgren P72F-3GL-PFA Valve - Excelon Soft Start (G3/8)

Part Number: P72F-3GL-PFA
Manufacturer
Norgren
Part number
P72F-3GL-PFA

Quick Summary

Norgren P72F-3GL-PFA valve is a soft-start dump valve for controlled downstream pressure in pneumatic systems. This helps address start-up pressure surges that can stress components, shorten service life, and create unsafe operator conditions. The design supports CE compliance with the European Machinery Directive and PUWER requirements, aiding safety audits and regulatory alignment. For OEMs and maintenance teams, the Excelon line offers reliable, easy-to-integrate performance in compressed air installations, with G3/8 porting and 3/2 operation that streamline installation and service.

Product Information

Extended Description

P72F-3GL-PFA 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 facility
Medium
Compressed air
Operating Temperature
-20 ... 50 °C, -4 ... 122 °F
Operating Pressure
3 ... 10 bar, 44 ... 145 psi
Port Size
G3/8
Actuation
Solenoid pilot / Spring return
Valve operation
3/2
Flow
21 dm3/sec, 45 scfm
Materials - Body
Zinc alloy
Materials - Elastomers
Synthetic material
Range
P72F
Series
Excelon
Brand
IMI Norgren
4215-09
Excelon Plus Pipe Adaptor, G3/8"
4216-52
Porting Block - Excelon 72 Series, Connection G1/4"
4214-51
Quikclamp
T72T-3GA-P1N
Excelon 3/2 modular system shut-off valve, G3/8
4214-52
Quikclamp with wall mounting bracket
4224-50
'Universal' Bracket
MB002B
Quietaire heavy duty silencer male, R1/4
QM/48/13J/21
Spare Coils
Feature: Solenoid pilot / Spring return actuation provides a compact, fail-safe control interface that is compatible with common PLCs and relays. Business Impact: Reduces wiring complexity and ensures safe shut-off during power loss, improving overall machine safety. Application: Ideal for automated start-up sequences in robotics and packaging lines where reliable power-off protection is critical. Feature: 3/2 valve operation delivers straightforward control of downstream venting during startup, minimizing pressure spikes. Business Impact: Enhances cycle stability and reduces component wear, cutting maintenance costs by extending seals and cylinder life. Application: Widely used in clamp and ejector circuits that require predictable venting patterns. Feature: High flow capacity of 21 dm3/sec enables rapid release of downstream pressure. Business Impact: Shortens start-up times and improves overall line throughput without overheating solenoids. Application: Suitable for fast-moving actuation in material handling and machine tools. Feature: G3/8 port size ensures compatibility with standard air fittings and manifolds. Business Impact: Lowers installation time and inventory needs by working with widely used piping dimensions. Application: Simple retrofits on existing Excelon 72 Series systems. Feature: Zinc alloy body and synthetic elastomer seals provide robust durability in workshop air and brief exposure to contaminants. Business Impact: Longer service intervals, reduced replacement cost, and predictable performance in factory environments. Application: Best-in-class for heavy-use lines requiring reliable weather and corrosion resistance. Feature: Machinery Directive and PUWER-aligned design supports regulatory compliance without bespoke modifications. Business Impact: Speeds up validation cycles and vendor qualification processes. Application: Critical for OEMs delivering compliant machinery and for maintenance teams working under tight safety regimes.

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FAQs

The P72F-3GL-PFA is designed for seamless integration within the Excelon 72 Series ecosystem. It uses a G3/8 port and 3/2 operation, so it drops into common manifolds and piping layouts without special adapters. Ensure correct orientation of the solenoid pilot and verify electrical coil compatibility with your control system for reliable fault-free operation.
Key specs include a 21 dm3/sec (45 scfm) flow rate, operating pressure range from 3 to 10 bar (44 to 145 psi), G3/8 port size, and a 3/2 valve operation. Actuation is solenoid pilot with spring return, delivering a compact, safe fail-safe design suitable for automated start-up sequences in pneumatic systems.
Yes. The valve is designed to assist compliance with the European Machinery Directive and PUWER, supporting safe and verifiable start-up and shutdown sequences. While it is not a standalone safety device, its controlled pressure ramp and fail-safe actuation help create safer equipment platforms when integrated into a compliant system design.
The soft-start capability dampens downstream pressure surges during startup, reducing peak loads on seals, cylinders, and connectors. This translates to longer component life, lower wear rates, fewer unplanned maintenance events, and more predictable maintenance planning in high-cycle applications like packaging or material handling.
Recommended accessories include Excelon Plus Pipe Adaptor 4215-09 for G3/8 piping, Porting Block 4216-52 for easy manifold integration, Quikclamp 4214-51 for fast mounting, and the Quikclamp with wall bracket 4214-52 for stable installations. Silencers like MB002B can reduce downstream noise, and spare coils such as QM/48/13J/21 help with coil maintenance and uptime.