Overview
The Festo LR-M2-G3/8-10GI air pressure regulator is a directly-controlled diaphragm regulator engineered for precision pneumatic system control. With a compact mini-size form factor and G3/8 port connections, this regulator provides stable outlet pressure regulation across a range of industrial pneumatic applications. The robust zinc construction and rotary knob actuator design ensure reliable performance in manufacturing, assembly, and automation environments.
Key Features
- Directly-controlled diaphragm design for minimal pressure hysteresis
- Compact mini-size form factor fits tight installations
- G3/8 external thread ports for standard pneumatic connections
- Rotary knob with integral lock for secure pressure adjustment
- Zinc body construction for corrosion resistance
- Suitable for any assembly position without orientation restrictions
Technical Specifications
| Regulator Type | Diaphragm, Directly-Controlled |
| Series | LR-M2 (Mini Size) |
| Port Connection | G 3/8 External Thread |
| Body Material | Zinc Alloy |
| Media | Compressed Air |
| Operating Temperature Range | -10°C to +60°C (14°F to 140°F) |
| Actuator Type | Rotary Knob with Lock |
| Assembly Position | Any Position |
| Typical Flow Rate | Up to 1,700 L/min |
| Manufacturer Part Number | 178787 |
| Brand | Festo |
Typical Applications
- Factory automation and production line control systems
- Assembly machinery and press systems
- Pneumatic actuator and cylinder pressure regulation
- Compressed air supply conditioning and stabilization
- Machine tool pneumatic circuits
- OEM equipment requiring compact pressure control
Compatibility & Replacements
Compatible With
- Standard pneumatic 12 mm tubing (O.D.)
- Festo modular pneumatic component systems
- Industrial compressed air networks operating within manufacturer pressure ratings
- Pneumatic circuit applications requiring G3/8 port interfaces
Replaces / Drop-In Replacement For
- Other Festo LR-M2 series regulators with equivalent pressure and flow specifications
- Verify compatibility with your system integrator before ordering for application-specific models
Works With
- Festo pneumatic component ecosystems
- Standard compressed air systems (ISO 1219-1 compliant circuits)
- Manual and automated pneumatic control valves
- Pressure gauge and monitoring equipment compatible with G3/8 connections












