Overview
The SMC NAR4000-N04 pneumatic pressure regulator is a compact, proven regulator for compressed air treatment and pneumatic system applications. With a set pressure range of 0.05–0.85 MPa (0–11 bar) and NPT port connections, this unit provides reliable pressure control in industrial and plant maintenance environments. Though discontinued by the manufacturer, surplus stock remains widely available.
Key Features
- Pressure range: 0.05–0.85 MPa (0–11 bar)
- 1/2″ NPT threaded connections for standard manifold mounting
- Durable aluminum die-cast construction
- Compact profile for space-constrained installations
- Manual adjustment handle with intuitive turn operation
- Proven SMC reliability across decades of industrial use
Technical Specifications
The NAR4000-N04 delivers stable outlet pressure control with low hysteresis, suitable for general industrial pneumatic circuits requiring pressures up to 0.85 MPa.
Typical Applications
- Plant compressed air systems and air tool supply
- Pneumatic actuator and valve control circuits
- Mobile and portable equipment
- Laboratory and test bench air regulation
- OEM equipment and machinery retrofit
Compatibility & Replacements
Compatible With
- Standard pneumatic manifolds with 1/2″ NPT ports
- SMC modular filter systems (e.g., NAF4000-N04 filter units)
- Industrial compressed air distribution networks
- Any system requiring low-range pressure regulation (0.05–0.85 MPa)
Replaces / Drop-In Replacement For
The NAR4000-N04 is a legacy product. Direct modern replacement: AR40-N04H-NZ-B (consult SMC for engineering equivalents). Compatible mechanical equivalents include other SMC NAR-series regulators of similar port and pressure range.
Works With
- SMC pneumatic accessory ecosystem (gauges, manifold blocks, directional valves)
- Standard NPT-threaded pneumatic components from all major manufacturers
- Modular regulator repair kits (e.g., KT-NAR4000-N04-X440)
