Rexroth Proportional Electro-Hydraulic Directional Valve
Product Models
4WRZ16E3-100-7X/6EG24N9K4/M
4WRZ16E1-150-7X/6EG24N9TK4/D3M
4WRZ16E3-150-7X/6EG24N9K4/M
Original imported proportional electro-hydraulic directional valve manufactured by Rexroth in Germany.
Technical Specifications
| 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) |
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Compatible Models
4WRZ16E180-7X/6EG24N9K4/M
4WRZ16E150-7X/6EG24N9TK4/D3M
4WRZ16E150-7X/6EG24N9TK4/M
4WRZ16E150-7X/6EG24N9ETK4/D3M
4WRZ16E150-7X/6EG24N9ETK4/M
4WRZ16E150-7X/6EG24N9EK4/D3M
4WRZ16E150-7X/6EG24N9K4/D3M
4WRZ16E125-7X/6EG24N9EK4/M
4WRZ16E125-7X/6EG24N9K4/D3M
4WRZ16E125-7X/6EG24N9K4/M
4WRZ16E100-7X/6EG24N9TK4/D3M
4WRZ16E100-7X/6EG24N9TK4/M
4WRZ16E100-7X/6EG24N9ETK4/D3M
4WRZ16E100-7X/6EG24N9ETK4/M
4WRZ16E100-7X/6EG24N9EK4/D3M
4WRZ16E100-7X/6EG24N9EK4/M
4WRZ16E1-100-7X/6EG24N9ETK4/M
4WRZ16E100-7X/6EG24N9K4/M
4WRZ16E100-7X/6EG24N9K4/D3M
Frequently Asked Questions
How does fluid viscosity affect valve performance?
Optimal viscosity is 20-40 mm²/s (cSt). Viscosity below 10 mm²/s may cause leakage, while viscosity above 100 mm²/s may increase pressure drop and reduce response time.
Do 4WREE valves require a filter in the supply line?
Yes, a 25 μm absolute filter (β100 ≥ 75) is mandatory in the supply line to prevent contamination of the valve's internal components.
Can water-contaminated fluid damage 4WREE valves?
Yes, water contamination (exceeding 0.1%) can cause corrosion, seal degradation, and clogging. Use water-separating filters and monitor fluid moisture levels.
What is the maximum allowable particle count in the fluid?
Follow ISO 4406 Class 18/16/13 (maximum 1300 particles ≥4 μm, 160 particles ≥6 μm, 20 particles ≥14 μm per mL).
Safety & Compliance
Do 4WREE valves comply with CE standards?
Yes, all 4WREE valves meet CE requirements for electromagnetic compatibility (EMC) and machinery safety (Directive 2006/42/EC).
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