Norgren L73C-4GP-QDN Excelon oil fog lubricator - G1/2
Part Number: L73C-4GP-QDN
Quick Summary
L73C-4GP-QDN Excelon oil fog lubricator provides precise oil-to-air dosing for pneumatic systems. Engineers often struggle with uneven lubrication and maintenance downtime. The Excelon design supports inline or modular installation, and a flow sensor maintains a near-constant oil/air ratio over a wide operating range. Certifications such as CE, IP, and SIL are not listed in the provided data; verify compliance with your QA requirements before purchase. This solution supports heavier lubrication over short distances and delivers reliable performance for large bore cylinders, air motors, and air tools, helping reduce downtime and improve overall equipment effectiveness.
Product Information
Extended Description
L73C-4GP-QDN 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 ... 80 °C, -30 ... 176 °F
Port Size
G1/2
Drain Type
Manual
Maximum Inlet Pressure
17 bar
Lubricator Fog Type
Oil fog
Flow
38 dm3/sec, 81 scfm
Start point
0.71 dm3/sec
Materials - Body
Aluminium
Materials - Bowl
Aluminium
Materials - Elastomers
Chloroprene rubber, Nitrile rubber
Range
L73C
Series
Excelon
Brand
IMI Norgren
L84C-4GP-EDN
Excelon Plus oil fog lubricator, G1/2, Metal bowl closed
Feature: Inline or modular installation offers flexibility and faster commissioning. Benefit: Reduces installation time, saves space, and simplifies retrofits across automation lines. Application: Suitable for retrofit projects and new builds in compact plant layouts. Feature: Excelon oil fog technology enables heavier lubrication where needed over short runs. Benefit: Minimizes wear and extends tool life for high-load cylinders and air tools. Application: Large bore cylinders and high-demand pneumatic tooling. Feature: Flow sensor maintains a nearly constant oil/air ratio across flows. Benefit: Delivers consistent performance, reduces oil waste, and lowers maintenance costs. Application: High-output pick-and-place lines and tool fleets with fluctuating demand. Feature: Aluminium body and bowl offer durable, corrosion-resistant construction. Benefit: Long service life in harsh industrial environments with easy field maintenance. Application: Manufacturing floors, automotive/body shops, and process automation. Feature: Manual drain simplifies maintenance and troubleshooting. Benefit: Quick drainage without power or complex controls, improving uptime. Application: Routine service and site-specific maintenance routines. Feature: Operating range and porting (G1/2) support standard fittings. Benefit: Eases compatibility with existing compressed air systems and manifolds. Application: Retrofit into legacy equipment and new installations alike.
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FAQs
This lubricator supports both inline and modular configurations, enabling a flexible fit across existing manifolds and new automation lines. It reduces installation complexity by using standard G1/2 porting and a compact aluminium body. Field technicians benefit from straightforward mounting, minimal plumbing changes, and quicker startup with fewer integration challenges during retrofits.
The unit provides a maximum flow of 38 dm3/s (81 scfm) with a start point at 0.71 dm3/s, ensuring reliable oil delivery as demand ramps up. This enables stable lubrication for equipment with varying cycle rates, such as multi-axis tooling and high-frequency actuators, while minimizing oil consumption during light-load operation.
Yes. Designed for oil fog lubrication, the Excelon series excels in heavy lubrication over short distances, making it ideal for large bore cylinders, air motors, and air tools. The integrated flow sensor helps maintain a constant oil/air ratio, supporting consistent lubricant delivery even as supply conditions shift, which reduces wear and extends component life.
Certifications are not listed in the provided data. For regulated environments, verify CE marking, IP protection, and SIL readiness with your supplier and QA team. Documenting these certifications ensures compliance with regional safety and quality requirements and supports audit readiness during procurement reviews.
With a manual drain and robust aluminium construction, routine maintenance is straightforward and time-efficient. The oil fog design reduces lubricant waste and tool wear, delivering lower total cost of ownership and improved equipment uptime. Expect longer service intervals and fewer unplanned maintenance events in high-demand pneumatic systems.