Norgren L74C-4AP-QDN Oil Fog Lubricator - 1/2" PTF
Part Number: L74C-4AP-QDN
Quick Summary
Norgren L74C-4AP-QDN is an Excelon oil fog lubricator designed for compressed air systems in automation and manufacturing. This solution helps keep critical actuation smooth by delivering a steady oil/air mix over short runs, reducing tool wear and downtime. In standard industrial practice, essential certifications such as CE conformity and applicable IP ratings are considerations for lubrication modules, with SIL safety concepts guiding use in safety-critical lines. The product supports in-line or modular installation, enabling flexible layouts and scalable upgrades, while a metal bowl with a visible liquid level and a manual drain simplify on-site servicing. Together, these features drive uptime, efficiency, and predictable lubrication budgets.
Product Information
Extended Description
L74C-4AP-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
1/2" PTF
Drain Type
Manual
Maximum Inlet Pressure
17 bar
Lubricator Fog Type
Oil fog
Flow
91 dm3/sec, 193 scfm
Start point
0.94 dm3/sec
Materials - Body
Aluminium
Materials - Bowl
Aluminium
Materials - Elastomers
Chloroprene rubber, Nitrile rubber
Range
L74C
Series
Excelon
Brand
IMI Norgren
T74T-4AA-P1N
Excelon 3/2 modular system shut-off valve, 1/2" PTF
4316-50
Porting Block - Excelon 73/74 Series, Connection G1/4"
4324-50
'Universal' Bracket
4314-51
Quikclamp
4315-03
Quikmount pipe adapter
4314-52
Quikclamp with wall mounting bracket
L74M-KIT
Service kit L74M
L84C-4AP-EDN
Excelon Plus oil fog lubricator, 1/2" PTF, Metal bowl closed
Excelon design enables in-line or modular installation, reducing site integration time and enabling scalable layouts for growing plants. This translates to lower installation costs and faster time-to-value for automation projects. The oil fog technology is ideal for heavier lubrication over short distances, supporting large bore cylinders, air motors, and high-demand tooling with reliable startup and reduced wear. A flow sensor maintains a nearly constant oil/air ratio across wide flow ranges, improving consistency and reducing lubricant waste in mixed-demand lines. Durable aluminum body and bowl deliver robust performance in shop-floor environments, while the metal bowl with liquid level indicator and manual drain simplify maintenance and diagnostics. Compatibility with 1/2" PTF ports and a modular accessory ecosystem (shut-off valve, porting blocks, universal brackets) supports seamless retrofits and streamlined installation, addressing common objections about adaptation costs. Service kits and mounting options further reduce downtime and extend lifecycle.
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FAQs
The Excelon design explicitly supports both in-line and modular installations, enabling flexible layouts for new builds or retrofits. With a 1/2" PTF port and a compact bowl design, it can be integrated into existing manifolds or added as a modular lubrication stage without extensive piping changes. Mounting accessories such as the universal bracket and Quikclamp simplify installation and reduce field labor.
Key specs include a 1/2" PTF port size, maximum inlet pressure of 17 bar, flow capacity of 91 dm3/sec (193 scfm), and a start point of 0.94 dm3/sec. Operating temperature ranges from -34 to 80 °C (-30 to 176 °F). The lubricator uses oil fog lubrication with an aluminum body and bowl, designed for compressed air systems.
This unit excels where heavier lubrication is needed over short distances, such as large bore cylinders, air motors, and air tools. Its flow characteristics and constant oil/air ratio support consistent actuator performance in high-demand lines, while inline/modular installation keeps modernization projects lean and predictable.
It uses a manual drain and a metal bowl with a liquid-level indicator for straightforward maintenance. The L74M service kit is available to support routine servicing, and mounting/accessory options like the 4316-50 Porting Block and 4324-50 Universal Bracket simplify ongoing upkeep and upgrades, reducing downtime during scheduled maintenance.
Yes. Accessories include T74T-4AA-P1N Excelon 3/2 modular shut-off valve, 4316-50 Porting Block for Excelon 73/74 series, and mounting options such as the 4324-50 Universal Bracket, 4314-51 Quikclamp, 4315-03 Quikmount, and 4314-52 Quikclamp with wall bracket. These enable clean integration, easy retrofits, and secure mounting in factory environments.