The Nachi SA-G01-E3X-C115-E30 is a premier, high-performance, solenoid-operated directional control valve designed for automated fluid routing in high-pressure hydraulic systems. Part of Nachi’s renowned SS/SA series, this valve is built onto the standard ISO 4401-03 mounting interface (equivalent to NFPA D03 and CETOP 3), making it an industry-standard choice for plant MRO replacements and premium OEM machine builds.
This model is distinguished by its fluid-immersed wet armature solenoid design. By housing the core within system oil, mechanical shifting impacts are naturally dampened. This significantly reduces airborne noise, lowers internal wear, and prevents the external oil weeping common in dry-pin solenoid valves. Configured with an E3X spool design and driven by a stable 115V AC coil, it delivers highly reliable, repetitive cycle execution under continuous-duty industrial conditions.
Core Technical Features & Advantages
-
Advanced Flow Dynamics: Optimized internal casting channels drastically minimize pressure drop ($\Delta p$), reducing system heat generation and overall energy consumption.
-
High Over-Pressure Tolerance: Ported to handle high permissible back-pressures at the tank line (Port T) without compromising spool stability or shifting performance.
-
Dust and Waterproof Enclosure: Features a robust central terminal box design (E30 revision) that meets high industrial IP environmental ratings, protecting internal wiring from oil mist and dust.
-
Extremely Long Service Life: The combination of hardened spool geometries, wet-armature engineering, and tight tolerances ensures tens of millions of trouble-free switching cycles.
-
Easy Maintenance & Retrofit: Coils are easily interchangeable, allowing for rapid field servicing or electrical reconfigurations without breaking the hydraulic seal.
Primary Applications
The Nachi SA-G01 series is widely adopted across high-precision industrial manufacturing and automated processing lines:
-
CNC machine tools, automated machining centers, and tooling fixtures
-
Plastic processing, injection molding machinery, and blow molding systems
-
Metal stamping, forming presses, and industrial shearing equipment
-
Multi-station industrial Hydraulic Power Units (HPUs) and automated test beds
-
Heavy-duty material handling machinery, conveyor indexing, and lift loops
Technical Specifications Table
| Parameter | Value / Specification |
| Brand Name | Nachi Fujikoshi |
| Model Code | SA-G01-E3X-C115-E30 |
| Mounting Interface | ISO 4401-03 / Cetop 3 / NFPA D03 |
| Actuation Type | Solenoid Operated (Direct Shifting) |
| Solenoid Technology | Wet Armature Type (Fluid Filled) |
| Spool Configuration | 3-Position, Spring Centered |
| Spool Type | E3X Type |
| Electrical Rating | 115V AC (50/60 Hz) / C115 Code |
| Max. Operating Pressure | Ports P, A, B: 35 MPa (5,076 psi) / Port T: 16 MPa (2,320 psi) |
| Maximum Flow Rate | Up to 100 L/min (26.4 GPM) |
| Wiring Connection | Central Terminal Box Interface (E30 Design Series) |
