| Selection Dimension | Specific Parameters/Options | Description |
| Model Designation | 4WRE | Basic model: Direct-acting proportional directional valve with electrical position feedback and no integrated electronics (OBE) |
| Integrated Electronics (OBE) | No Code | Standard configuration without integrated electronics; external amplifier required (to be ordered separately) |
| Nominal Size | 6 | Core size with component series 2X; mounting dimensions comply with Series 20-29 standards |
| Valve Core Type | 4/2 (2-position 4-way), 4/3 (3-position 4-way) | 4/3 type features spring-centered spool for automatic reset when de-energized; suitable for different oil circuit directional control needs |
| Rated Flow (Δp=10bar) | 4L/min (Code 04), 8L/min (Code 08), 16L/min (Code 16), 32L/min (Code 32) | Flow rates distinguished by corresponding codes; matched to hydraulic system flow requirements |
| Seal Material | V (FKM Fluororubber) | Default FKM material; compatible with mineral oil and other hydraulic fluids to ensure sealing performance |
| Power Supply Voltage | G24 (DC 24V) | Suitable for industrial standard DC power supply; meets proportional solenoid drive requirements |
| Electrical Interface | A1 (±10V Voltage Input), F1 (4-20mA Current Input) | Two interface options available; compatible with PLCs, computers, and other control signal sources |
| Electrical Connection | K4 (No Plug) | Plug compliant with DIN EN 175301-803 standard required (to be ordered separately) |
| Special Protection | J (Seawater-Resistant) | Only available for Size 6; suitable for marine-related or humid/corrosive working conditions |
| Mounting Standard | ISO 4401 | Panel mounting with standard mounting hole pattern; compatible with universal hydraulic system manifold layouts |
| Maximum Working Pressure | 315bar | Suitable for most medium-to-high pressure industrial hydraulic scenarios (e.g., hydraulic actuators in machine tools, automated production lines) |
| Complete Model Example | Model Code Breakdown | Core Configuration Parameters | Release Status | Application Description |
| 4WRE 6 E04-2X/V | 4WRE: Base Model6: Nominal SizeE: 4/3 3-position 4-way (spring-centered)04: Rated Flow 4L/min (Δp=10bar)2X: Component SeriesV: Seal Material (FKM Fluororubber) | Valve Type: 4/3 3-position 4-wayFlow Rate: 4L/minSeal: FKMPower Supply: Compatible with DC24VInterface: Supports ±10V/4-20mA | Officially Released (Mass Production) | Small precision hydraulic systems, laboratory equipment, light-load actuator control |
| 4WRE 6 E08-2X/V | 4WRE: Base Model6: Nominal SizeE: 4/3 3-position 4-way (spring-centered)08: Rated Flow 8L/min (Δp=10bar)2X: Component SeriesV: Seal Material (FKM Fluororubber) | Valve Type: 4/3 3-position 4-wayFlow Rate: 8L/minSeal: FKMPower Supply: Compatible with DC24VInterface: Supports ±10V/4-20mA | Officially Released (Mass Production) | Medium and small machine tool hydraulic feed systems, light-duty actuators in automated production lines |
| 4WRE 6 E16-2X/V | 4WRE: Base Model6: Nominal SizeE: 4/3 3-position 4-way (spring-centered)16: Rated Flow 16L/min (Δp=10bar)2X: Component SeriesV: Seal Material (FKM Fluororubber) | Valve Type: 4/3 3-position 4-wayFlow Rate: 16L/minSeal: FKMPower Supply: Compatible with DC24VInterface: Supports ±10V/4-20mA | Officially Released (Mass Production) | Medium hydraulic equipment, material handling machinery, auxiliary motion control of injection molding machines |
| 4WRE 6 E32-2X/V | 4WRE: Base Model6: Nominal SizeE: 4/3 3-position 4-way (spring-centered)32: Rated Flow 32L/min (Δp=10bar)2X: Component SeriesV: Seal Material (FKM Fluororubber) | Valve Type: 4/3 3-position 4-wayFlow Rate: 32L/minSeal: FKMPower Supply: Compatible with DC24VInterface: Supports ±10V/4-20mA | Officially Released (Mass Production) | Heavy-duty machine tools, metallurgical equipment hydraulic systems, direction and flow control of large actuators |
| 4WRE 6 J08-2X/V | 4WRE: Base Model6: Nominal SizeJ: 4/2 2-position 4-way08: Rated Flow 8L/min (Δp=10bar)2X: Component SeriesV: Seal Material (FKM Fluororubber) | Valve Type: 4/2 2-position 4-wayFlow Rate: 8L/minSeal: FKMPower Supply: Compatible with DC24VInterface: Supports ±10V/4-20mA | Officially Released (Mass Production) | Single-direction switching scenarios, hydraulic clutch control, simple directional control systems |
| 4WRE 6 E08-2X/VJ | 4WRE: Base Model6: Nominal SizeE: 4/3 3-position 4-way (spring-centered)08: Rated Flow 8L/min (Δp=10bar)2X: Component SeriesV: Seal Material (FKM Fluororubber)J: Special Protection (Seawater-Resistant) | Valve Type: 4/3 3-position 4-wayFlow Rate: 8L/minSeal: FKMProtection: Seawater corrosion resistancePower Supply: Compatible with DC24VInterface: Supports ±10V/4-20mA | Officially Released (Specialized Mass Production) | Marine engineering equipment, ship hydraulic systems, hydraulic control in humid and corrosive environments |
1. Base Model (4WRE):Released as "direct-acting proportional directional valve with electrical position feedback and no integrated electronics", implementing a unified release definition across the entire series;
2. Spool Type Code:E=4/3 3-position 4-way (spring-centered, with standard reset function in release); J=4/2 2-position 4-way (no reset spring configuration in release);
3. Flow Rate Code:04/08/16/32 correspond to 4/8/16/32L/min, which are standard release-level flow grades with no other derived flow specifications;
4. Special Configuration Code (J):Only Size 6 supports the seawater-resistant protection code J, a specialized release configuration limited to orders for marine-related working conditions;
5. Release Consistency Requirements:The entire series adopts a unified component series 2X, complies with ISO 4401 as the mandatory release mounting standard, and uses FKM as the default seal material (NBR material requires custom order, not a standard release configuration).
