Overview
The Speedaire 4ZL82 is a micro-mist air line lubricator designed for reliable pneumatic tool and device lubrication in industrial compressed air systems. With a 1/2″ NPT port and maximum flow rating of 95 CFM at 250 PSI, this lubricator maintains constant oil-to-air density across a wide range of flow conditions. The aluminum body and modular connector design enable quick installation and field replacement with minimal downtime.
Key Features
- Micro-mist lubrication provides precise oil distribution for consistent pneumatic tool performance
- Modular connector design allows easy removal and quick swap-out without tools
- 360° red sight dome enables visual oil level monitoring and feed verification
- Integral flow sensor provides proportional control independent of line pressure fluctuations
- Maintains constant oil-to-air density over varying flow rates and pressures
- Rated for pipe runs up to 50 feet with minimal pressure drop
Technical Specifications
| Model | 4ZL82 |
| Port Size | 1/2″ NPT (Female Inlet, Male Outlet) |
| Maximum Flow Rate | 95 CFM |
| Maximum Operating Pressure | 250 PSI |
| Operating Temperature Range | Up to 175°F |
| Body Material | Aluminum |
| Lubrication Type | Micro-Mist |
| Sight Dome | 360° Red Sight Dome (Included) |
| Weight | 1.25 lbs |
| Connection Type | Modular Connector |
| Adjustment Mechanism | Screwdriver |
| Country of Origin | China |
| CFM Reference | Based on 90 psig inlet with 5 psig pressure drop |
Typical Applications
- Pneumatic hand tools (drills, impact wrenches, grinders, sanders)
- Pneumatic motors and actuators requiring continuous lubrication
- Industrial compressed air distribution systems with multiple downstream tools
- Manufacturing and assembly lines with rotating pneumatic equipment
- Maintenance systems for air-powered machinery in production environments
Compatibility & Replacements
Compatible With
- Standard 1/2″ NPT compressed air lines and fittings
- All pneumatic hand tools rated for 250 PSI operation
- Industrial compressed air systems with 90–250 PSI inlet pressure
- Pneumatic device networks requiring proportional mist lubrication
Replaces / Drop-In Replacement For
- Speedaire 4ZL76 (1/2″ NPT, 95 CFM, 250 PSI variant)
- Prior generation 1/2″ Speedaire lubricators with modular connector
- OEM equipment lubricators requiring 1/2″ NPT micro-mist design
Works With
- Speedaire pneumatic filter regulators (FRL units)
- Parker, Wilkerson, Master Pneumatic, and ARO air line components
- Pneumatic valves and directional controls on industrial compressed air systems
- NPT-threaded compressed air plumbing and manifolds





