4WRZE 4WRZE25 Proportional Valve R900954670 4WRZE25E220-7X/6EG24ETK31/A1D3M R900954671 4WRZE25E220-7X/6EG24K31/A1M

The 4WRDE series is a high-performance electro-hydraulic proportional directional valve from SENHENGYUAN, characterized by fast
dynamic response, high control precision, and integrated electronic control, making it suitable for demanding hydraulic systems.
Model Coding & Key Parameters
Taking the model 4WRDE 16 V125L-5X/6L24K9/WG152MR as an example, here’s the breakdown:

* 4: 4-way valve (enables bidirectional control of actuators like cylinders or motors).
* WRDE: Series identifier. “WR” denotes a proportional directional valve, and “DE” indicates direct-drive electro-hydraulic
control (no pilot stage, improving response speed).
* 16: Nominal size (16 mm), determining flow capacity (rated flow typically 125–200 L/min, depending on pressure drop).
* V125L: Flow rating (125 L/min at a specific pressure drop, “L” for design variant).
* 5X: Control variant (with integrated electronics for signal processing).
* 6L24K9: Electrical specs. “L24” means DC 24V coil, “K9” indicates connector type with protective features.
* WG152MR: Additional functions (e.g., diagnostic capabilities, oil compatibility, or environmental protection).

Core Features
1. Ultra-Fast Response: Valve spool response time as low as 10 ms (enabling precise motion control in applications like injection
molding machines or robotics).
2. Integrated Electronics (OBE): Built-in amplifier eliminates the need for external controllers, simplifying system design.
3. High Contamination Resistance: Hardened components and tight manufacturing tolerances allow operation with oil cleanliness
down to ISO 4406 Class 18/16/13.
4. Digital Communication (Optional): Some models support CANopen or PROFINET for seamless integration into industrial networks.

Typical Models
1. 4WRDE 10 V50L-5X/6L24K9/M
2. 4WRDE 16 V125L-5X/6L24K9/WG152MR
3. 4WRDE 25 V350L-5X/6L24K9/MR
4. 4WRDE 10 V75L-5X/6L24K9/WG152M
5. 4WRDE 16 V150L-5X/6L24K9/M
6. 4WRDE 25 V400L-5X/6L24K9/WG152MR

Applications
* High-Speed Machinery: Plastic injection molding (fast mold clamping), die casting (precise shot control).
* Mobile Hydraulics: Specialized construction equipment (e.g., hydraulic cranes with precise boom positioning).
* Test Benches: Hydraulic component testing (e.g., pump or motor performance validation under dynamic loads).