Products Description
The 4WEMM6G61B is a solenoid-operated, spring-centered, 4-way, 3-position directional control valve. Its core function is to direct the flow of hydraulic oil to a double-acting cylinder or hydraulic motor, controlling its direction of movement (extend, retract, stop). The integrated emergency handle mechanically shifts the valve spool independently of the solenoids, serving as a failsafe. Supplied by Xi'an Yuesheng Xingyao Trading Co., Ltd., this high-performance, wet-pin solenoid operated directional control valve features an integrated emergency manual override. Designed for robust hydraulic systems in construction machinery, sanitation vehicles, and industrial equipment, this valve ensures reliable directional flow control of hydraulic oil. The critical addition of the emergency handle allows for manual operation in case of electrical failure, providing essential system safety and operational continuity, making it an indispensable component for applications where reliability is paramount.
Product Specifications
| Parameter | Value/Description |
| Model | 4WEMM6G61B/CG12N9Z5L |
| Type | Solenoid Operated Directional Valve |
| Configuration | 4-way, 3-position, spring-loaded centering |
| Max Operating Pressure | Up to 350 bar (31.5 MPa) |
| Max. Flow Rate | ~60-80 L/min (size-dependent) |
| Solenoid Voltage | AC220V / DC24V (varies by coil option) |
| Coil Features | Rotatable 90° wet armature |
| Manual Override | Yes (emergency handle) |
| Material | Cast valve body with precision spool |
| Working Medium | Mineral hydraulic oil |
Product Features
Electro-Manual Dual Control: Combines electromagnetic actuation with an emergency manual handle to ensure uninterrupted control under fault conditions.
High Operating Pressure Tolerance: Engineered for up to 350 bar working pressure enabling use in demanding hydraulic systems.
Standardized Mounting: ISO / CETOP mounting for interchangeability with global industrial designs.
Rotatable Solenoid Coil: Coil rotates 90° for installation flexibility in tight assemblies.
Robust Spool Design: Precision machined spool and valve body deliver stable switching with minimal leakage.
Reliable Materials: Cast body with hydraulic-grade seals for durability and low maintenance.
Manual Emergency Override: Allows operator controlled movement to any spool position if electrical control is unavailable.
Dual-Operation Safety: Combines precise electrical control with a reliable manual mechanical override, ensuring system control even during power loss or solenoid failure.
Wet-Pin Solenoid Technology: The solenoid coil is immersed in hydraulic oil, which improves heat dissipation, dampens noise, and allows for easy "hot" replacement without draining the system.
Robust Construction: Hardened spool and valve body ensure long service life and consistent performance under high pressure and flow conditions.
Low Power Consumption: Efficient solenoid design reduces the load on the vehicle or machine's electrical system.
Clear Position Indication: Visual or tactile feedback indicates the valve's current position (e.g., centered, left, right).
Easy Integration: Standardized NG6 interface and mounting pattern allow for straightforward installation into existing hydraulic valve stacks or manifolds.
Maintenance-Friendly: Modular design facilitates easy inspection and replacement of coils or the entire cartridge.
Product Applications
Garbage Compactor Truck Packing Mechanism Control
Dump Truck Body Lifting/Lowering System
Aerial Work Platform (Cherry Picker) Boom Functions
Industrial Press Clamping Cylinder Control
Mobile Crane Outrigger or Winch Control
Any Hydraulic System Requiring Emergency Manual Operation
Product Details
Emergency Handle: A clearly marked, robust mechanical lever or push-button that directly acts on the valve spool.
Solenoid Coils: Encapsulated, plug-in coils with LED indicator options (depending on variant) for quick status check.
Valve Body: Precision-machined from high-grade steel or ductile iron, with clearly stamped port identifications (P, T, A, B).
Mounting Surface: Smooth, lapped surface ensuring leak-free connection to the manifold.
Electrical Connector: Standardized DIN 43650 Form A or equivalent waterproof connector.
Productifications & Evidence
Design Conformity: Manufactured to meet key dimensions and performance criteria of widely accepted industrial standards.
Material Certification: Critical components use certified materials for pressure containment and durability.
Factory Testing: Undergoes routine testing for pressure integrity, internal leakage, and solenoid function.
Application Heritage: The fundamental "4WE" design is field-proven in millions of applications worldwide, attesting to its reliability.
Why Choose Our 4WEMM Series Hydraulic Directional Valves?
Technical Confidence & Quality Assurance
Built to conform with ISO / CETOP mounting patterns, enabling compatibility in global markets.
All valves undergo rigorous quality inspection before shipment to ensure performance consistency.
Materials & Durability
Cast bodies with optimized internal flow paths reduce pressure drop and wear.
High-grade seals deliver extended life in harsh operating environments.
Scalable & Customizable
Options for AC/DC coils, emergency handle configurations, and electrical interfaces.
Engineered for easy servicing - replace solenoids without draining fluid.
Fast Delivery & Support
Strong production capacity and global logistics support B2B supply chain demands.
Technical documentation and calibration guidance available on request.
FAQ
Q: What does the model "4WEMM6G61B" specifically mean?
A: In standard nomenclature: "4WE" = 4-way solenoid valve series. "M" often denotes wet-pin solenoid. Another "M" may indicate specific design. "6" = NG6 size. "G" = coil voltage code (e.g., DC24V). "61" = spool type (e.g., O-type with specific notch details). "B" = design revision. Exact decoding requires the manufacturer's catalog.
Q: When and how should the emergency handle be used?
A: Use ONLY when normal electrical control fails (e.g., no power, solenoid burnt). Operate by manually pushing/pulling the handle to shift the spool to the desired position (extend or retract). It is for emergency cycling, not for precision control. Always depressurize the system if possible before use for safety.
Q: What hydraulic fluids can be used with this valve?
A: Standard mineral hydraulic oils within recommended viscosity ranges. Custom seals support varied media if required.
Q: Can the solenoid coil be replaced in the field?
A: Yes, wet armature coils are detachable without draining the system.
Q: How does the manual emergency handle function?
A: It mechanically shifts the spool when electrical operation is unavailable, ensuring controlled direction change.
Q: What mounting standards does this valve follow?
A: ISO 4401 / CETOP-03 subplate mounting for broad compatibility.
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