Norgren L73C-4GP-ETN Oil Fog Lubricator - Closed bowl
Part Number: L73C-4GP-ETN
Quick Summary
Norgren L73C-4GP-ETN is an Excelon oil fog lubricator for compressed air used with large bore cylinders and air tools. Inline installation and maintaining a stable oil-to-air ratio across varying flows is challenging in automated lines. Consider typical certifications such as CE compliance, SIL safety alignment, and IP ratings when selecting lubricators; verify the model's certifications. This design supports inline or modular installation and a nearly constant oil/air ratio, driving predictable tool life and reduced lubricant waste. By reducing oil mist overspray and optimizing consumption, maintenance intervals can be extended and downtime minimized. For procurement teams, the robust Excelon platform offers consistent performance across automated production lines.
Product Information
Extended Description
L73C-4GP-ETN Norgren: Excelon design allows in-line or modular installation | Oil fog lubrication is ideal when heavier lubrication is required over short distances such for large bore clyinders, air motors and air tools | Flow sensor provides a nearly constant oil/air ratio over a wide range of flows
Medium
Compressed air
Operating Temperature
-34 ... 50 °C, -30 ... 122 °F
Port Size
G1/2
Drain Type
Closed bowl
Maximum Inlet Pressure
10 bar
Lubricator Fog Type
Oil fog
Flow
38 dm3/sec, 81 scfm
Start point
0.71 dm3/sec
Materials - Body
Aluminium
Materials - Bowl
Polycarbonate
Materials - Elastomers
Chloroprene rubber, Nitrile rubber
Range
L73C
Series
Excelon
Brand
IMI Norgren
L84C-4GP-EPN
Excelon Plus oil fog lubricator, G1/2, Guarded plastic bowl closed
Excelon oil fog lubrication with oil fog type delivers heavier lubrication where needed over short distances, ideal for large bore cylinders, air motors and air tools, and supports both inline and modular installation. This translates to faster setup, easier scalability, and reduced downtime on automated lines, with measurable improvements in tool life and lubrication efficiency. The integrated flow sensor maintains a nearly constant oil/air ratio across a wide range of flows, delivering consistent performance and reducing lubricant waste during peak production shifts. With a port size of G1/2 and a maximum inlet pressure of 10 bar, it withstands typical factory air systems while preserving oil economy. The operating temperature range of -34 to 50 °C enables reliable service in diverse environments, from chilly workshops to warmer machining bays. Material choices—aluminium body, polycarbonate bowl, and elastomer seals (chloroprene and nitrile)—combine durability with lightweight handling, lowering maintenance intervals and replacement costs. The closed-bowl drain reduces contamination risks, while the Excelon L73C series provides compatibility with inline or modular configurations for scalable installations. Overall, this lubricator supports cost-effective lubrication without compromising performance in heavy-duty pneumatic applications.
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FAQs
The L73C-4GP-ETN supports inline and modular installation, enabling flexible placement in new or existing pneumatic circuits. With a G1/2 port and a robust closed-bowl design, it fits standard European and global air lines. This means engineers can deploy it alongside other Excelon components without reconfiguring existing manifolds, reducing commissioning time and enabling scalable line upgrades as production needs evolve.
Key specs include a flow of 38 dm3/sec (81 scfm), a start point at 0.71 dm3/sec, and a maximum inlet pressure of 10 bar. Medium is compressed air, operating temperature ranges from -34 to 50 °C. The unit uses an oil fog lubrication method and features a closed-bowl drain with G1/2 port, making it suitable for high-demand automation environments.
Yes. The Excelon design is optimized for heavier lubrication over short distances, which is common with large bore cylinders, air motors, and air tools. The oil fog approach provides adequate lubrication without excessive oil carryover, improving tool life and reducing maintenance intervals in stamping, forming, and fastening applications found in automated lines.
Review the model’s certifications relevant to your region and application, such as CE compliance for European markets, SIL alignment for safety-critical systems, and appropriate IP ratings for equipment enclosures. The L73C-4GP-ETN is designed for robust industrial use, but always verify the exact certifications listed on the datasheet and ensure compatibility with your plant’s safety and compliance requirements.
The closed-bowl design minimizes contamination, while the oil fog mechanism and flow sensor promote consistent lubrication and reduced oil waste. These features translate to longer tool life, fewer lubrication-related outages, and lower maintenance costs. In high-cycle production, the inline/modular installation also reduces downtime during retrofits, delivering a favorable return on investment through improved uptime and material efficiency.