Norgren L74M-4GP-QAL Excelon Micro Fog Lubricator - 17 bar
Part Number: L74M-4GP-QAL
Quick Summary
Excelon micro fog lubricator is designed to deliver precise mist lubrication for general pneumatic systems. Engineers often contend with oil/air ratio drift and lubrication inconsistencies that drive maintenance downtime and consumable costs. Typical Excelon configurations support CE conformity and robust enclosure options for industrial environments, with considerations for SIL safety integration and general IP-rated protection in the broader automation stack. By combining inline or modular installation with a 1 litre aluminium bowl and sensor-enabled level monitoring, this solution offers predictable lubrication, reduced wear, and easier maintenance—benefiting OEMs and end users alike.
Product Information
Extended Description
L74M-4GP-QAL Norgren: Excelon design allows in-line or modular installation | Micro-fog lubricaton for best lubrication in general purpose pneumatic applications, fine mist perfect for long and more complex pipework | Flow sensor provides a nearly constant oil/air ratio over a wide range of flows
Medium
Compressed air
Operating Temperature
-34 ... 80 °C, -30 ... 176 °F
Port Size
G1/2
Drain Type
Manual
Maximum Inlet Pressure
17 bar
Lubricator Fog Type
Micro fog
Flow
73 dm3/sec, 155 scfm
Start point
0.94 dm3/sec
Materials - Body
Aluminium
Materials - Bowl
Aluminium
Materials - Elastomers
Chloroprene rubber, Nitrile rubber
Range
L74M
Series
Excelon
Brand
IMI Norgren
T74T-4GA-P1N
Excelon 3/2 modular system shut-off valve, G1/2
4316-50
Porting Block - Excelon 73/74 Series, Connection G1/4"
4324-50
'Universal' Bracket
4314-51
Quikclamp
4315-11
Quikmount pipe adapter
4314-52
Quikclamp with wall mounting bracket
L74M-KIT
Service kit L74M
The lubricator uses micro fog technology to provide a fine mist, which stabilizes the oil/air ratio across a wide range of flows. This translates into measurable efficiency gains and lower oil consumption, especially in long runs and complex pipework, where conventional lubrication can be uneven. In practice, engineers see more consistent actuation and fewer premature wear events on valves and cylinders, enabling longer service intervals and lower total cost of ownership. The product supports in-line or modular installations, enabling quick retrofits in existing lines and scalable deployments in new automation projects. A 1 litre aluminium bowl with a liquid level indicator and sensor allows proactive refill and monitoring, reducing spill risk and maintenance surprises. The G1/2 port and manual drain simplify integration with Excelon modular systems and standard pneumatic grids. Durable aluminium body and bowl resist vibration and industrial grime, ensuring reliability in harsh environments. Flow sensor feedback maintains a nearly constant oil/air ratio from start point to full load, boosting process stability and compliance with lubrication targets. Elastomer seals (chloroprene and nitrile) provide chemical compatibility and long service life when used with typical lubricants. This combination supports lower total cost of ownership, improved uptime, and easier maintenance planning across general automation and packaging lines.
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FAQs
The L74M-4GP-QAL is designed for inline or modular installation in general pneumatic networks and works with the Excelon 73/74 series modular system. It uses a G1/2 port and includes a 1 L aluminium bowl with level indication and sensor for proactive monitoring. For retrofits, pairing with the Excelon T74T-4GA-P1N shut-off valve or similar modular components simplifies integration and minimizes system downtime.
Key specifications include a G1/2 port size, maximum inlet pressure of 17 bar, operating temperature range from -34 to 80 °C, and a flow rate of 73 dm3/sec (155 scfm) with a start point of 0.94 dm3/sec. The device uses micro fog lubrication and a 1 L aluminium bowl, with a flow sensor delivering a near-constant oil/air ratio across varying flows.
Yes. The micro fog approach is specifically beneficial for long and intricate pipework, providing fine, consistent lubrication where oil coverage can otherwise drift. The inline or modular installation capability, combined with a reliable aluminium body and bowl, ensures steady performance along extended runs. The integrated flow sensor helps maintain lubrication targets across fluctuating demand.
Certification details are not explicitly listed in the provided data. In practice, Excelon products commonly align with CE conformity and industrial-grade protection standards, and system designers often address SIL safety and IP-based protection at the installation level. Always consult the datasheet or contact Norgren for definitive certification statements and region-specific compliance guidance before procurement.
Maintenance impact is reduced by predictable lubrication thanks to the flow sensor and stable oil/air ratio, plus the level-indicated 1 L bowl that minimizes spill risk and refilling frequency. The modular compatibility enables faster retrofits and scalable deployment, driving uptime improvements and lower lifecycle costs across general automation and packaging lines.