Overview
The ARO 127111-000 is a precision air pressure regulator built to maintain controlled and consistent air pressure in pneumatic systems. Since 1930, ARO has been an industry leader in pneumatic tools and air preparation equipment, and clean air is essential for effective operation of tools, equipment, and machinery in nearly every industry. This regulator is engineered for reliable performance across industrial, manufacturing, and mobile equipment applications where stable air pressure is critical.
Key Features
- Self-relieving design vents excess downstream pressure automatically
- Standard adjustment range of 0-140 psig for common pneumatic applications
- Compact, lightweight construction for easy installation and space efficiency
- Spring cartridges can be easily substituted for different pressure requirements
- Designed for use with standard NPT threaded ports
- Proven reliability across industrial air preparation systems
Technical Specifications
| Model Number | ARO 127111-000 |
| Manufacturer | ARO (Ingersoll Rand) |
| Product Type | Air Pressure Regulator |
| Regulator Type | Self-relieving |
| Adjustment Range | 0–140 PSI (0–9.6 bar) |
| Port Type | NPT (National Pipe Thread) |
| Operating Function | Pressure regulation with automatic relief |
| Application | General purpose pneumatic systems |
Typical Applications
- Industrial pneumatic tool systems and air-powered equipment
- Manufacturing machinery and production lines requiring stable air pressure
- Hydraulic and pneumatic machinery air preparation circuits
- Mobile equipment and vehicle air brake systems
- Compressed air piping networks in facilities and shops
- OEM equipment air pressure control subsystems
Compatibility & Replacements
Compatible With
- ARO filter and lubricator components
- Standard compressed air piping systems with NPT connections
- Pneumatic tools and cylinders rated for 0–140 PSI
- Air preparation systems using modular filter-regulator-lubricator (FRL) configurations
- General industrial and mobile equipment air supply networks
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator or equipment documentation before ordering. ARO regulator models within the same series sharing identical port sizes and pressure ratings may be compatible.
Works With
- ARO-Flo series filters and lubricators
- Compressed air circuits with standard pneumatic actuators and controls
- Panel-mounted and inline air preparation assemblies
- Multi-stage FRL (filter-regulator-lubricator) systems
