Norgren L73C-3AP-ETN Oil Fog Lubricator - Excelon
Part Number: L73C-3AP-ETN
Quick Summary
Norgren L73C-3AP-ETN oil fog lubricator provides reliable lubrication for pneumatic systems in automated equipment. Engineers often struggle with maintaining accurate oil-air ratios and preventing bowl leaks that cause downtime. The Excelon design supports inline or modular installation, and provides CE-compliant compatibility with common industrial controls and a closed-bowl housing for durable, maintenance-friendly operation. With a steady oil fog profile and a robust flow sensor, this unit helps control lubrication precisely across varying demands. Using this solution reduces waste, improves cycle consistency, and simplifies spare-parts planning for high-volume manufacturing.
Product Information
Extended Description
L73C-3AP-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
3/8" PTF
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-3AP-EPN
Excelon Plus oil fog lubricator, 3/8" PTF, Guarded plastic bowl closed
Feature: The Excelon design allows in-line or modular installation, enabling flexible deployment and faster retrofit with minimal piping changes. Business Impact: Reduces installation time and contamination risk, boosting line uptime and lowering project costs. Application: Ideal for retrofits on automated lines or new installations where space is limited and modular skids are preferred. Feature: Oil fog lubrication delivers heavier lubrication over short distances, suitable for large bore cylinders, air motors, and high-flow tools. Business Impact: Improves lubrication reliability in demanding segments, extending component life and reducing tool wear. Application: Commonly used in automated machining centers and pneumatic handling equipment. Feature: Integrated flow sensor maintains a nearly constant oil/air ratio across a wide flow range. Business Impact: Delivers consistent actuation performance, reduces oil waste, and simplifies process control. Application: Useful in lines with varying load profiles and intermittent tool usage. Feature: Durable construction with aluminium body and polycarbonate bowl in a closed-bowl design. Business Impact: Enhances robustness on the shop floor, minimizes bowl spills, and lowers maintenance frequency. Application: Suitable for rugged environments and high-cycle applications. Feature: Clear start point and flow metrics—start at 0.71 dm3/sec, rated flow 38 dm3/sec with max inlet pressure up to 10 bar. Business Impact: Enables precise lubrication budgeting and scalable performance across multiple stations. Application: Supports systems ranging from compact automation cells to larger pneumatic manifolds.
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FAQs
The unit supports in-line or modular installation, using the 3/8 PTF port to connect to your compressed air line. Ensure the supply pressure stays within the 10 bar maximum, mount the closed bowl securely to prevent spills, and follow the Installation Guide for wiring and piping clearances. The CAD model in Downloads can assist with layout planning and clearance checks.
Key specs include the maximum inlet pressure of 10 bar, flow capacity of 38 dm3/sec (81 scfm), and a start point at 0.71 dm3/sec. Operating temperature ranges from -34 to 50 °C (-30 to 122 °F). The port size is 3/8 PTF, and the lubricator uses oil fog lubrication with a closed-bowl design. These values define suitable operating envelopes for downstream cylinders and tools.
Yes. The Excelon oil fog approach provides heavier lubrication over short distances, which is advantageous for large bore cylinders, air motors, and air tools. The 3/8 PTF port and precise flow control support stable lubrication at the start and during peak cycles, helping to reduce tool wear and maintain actuator performance in demanding applications.
The closed-bowl design minimizes spillage and reduces maintenance complexity. Routine checks should include bowl integrity, elastomer wear inspection (chloroprene and nitrile options), and ensuring the flow sensor remains unobstructed for accurate oil/air regulation. When the bowl or seals require replacement, refer to the Installation Guide and CAD/Datasheet assets for compatible parts and service intervals.
You can download the CAD file, the Datasheet PDF, and the Installation Guide from the product page. Use the CAD link for mounting layouts and fluid routing, the Datasheet for full specifications, and the Installation Guide for step-by-step setup and safety notes to ensure compliant integration.