HYDAC WSM Series Solenoid Valve | WSM06020V WSM12120V WK10W | Directional Control

Chengyuan Hydraulic offers high-performance WSM and WK Series solenoid directional valves, precision-engineered as premium replacements for HYDAC cartridge valve standards. This range includes essential models such as WSM06020V-01M, WSM12120V-01, and WK10W-01M, widely utilized in compact Hydraulic Integrated Circuits (HIC). As a leader in the threaded cartridge valve market, Chengyuan ensures 100% Drop-in Interchangeability regarding cavity specifications, electrical solenoid parameters, and pressure drop characteristics compared to original HYDAC units. Supported by our 100% Simulation Load Testing, we guarantee that every valve provides precise switching and superior sealing performance even at pressures up to 350 bar.

Technical Specifications 

• Series Category: WSM Series (Spool type) / WK Series (Poppet/Seated type)

• Cavity Specifications: 06020 (UNF 9/16-18), 12120 (UNF 1-1/16-12), 10 (UNF 7/8-14)

• Max Operating Pressure: 350 bar (35 MPa)

• Nominal Flow: WSM06020 approx. 20 L/min, WSM12120 up to 80-100 L/min

• Control Voltage: 24DG (24V DC), 24VDC-Z5L (Specific connector type)

• Function Options: 2/2-way, 2/3-way

• Sealing Material: FKM (Viton) as standard, suitable for various hydraulic fluids

• Manual Override: ‘M’ suffix models equipped with manual rotary or push-type override

• Duty Cycle: 100% ED (Rated for continuous operation)

Key Technical Advantages:

• Highly Integrated Cartridge Design: The threaded design significantly reduces the footprint of hydraulic power units. Valve bodies are hardened for high-pressure resistance and fit directly into standard HYDAC cavities, ensuring effortless installation and service.

• Heavy-Duty Solenoid Technology: Coils are vacuum-encapsulated in epoxy resin, achieving IP65+ protection. The 24DG specifications offer exceptional thermal stability, maintaining consistent actuator thrust even in high-temperature environments.

• Zero-Leakage Sealing (WK Series): The WK series utilizes a poppet structure to achieve a metal-to-metal hard seal. Compared to spool valves, internal leakage is virtually zero, making them ideal for load-holding and safety-locking circuits.

• Precision-Lapped Spool Matching: WSM spool sets are precision-ground from alloy steel. Micron-level clearance control ensures smooth shifting while minimizing volumetric loss under high-pressure conditions.

Application Areas:

• Mobile Equipment: Attachment controls for mini-excavators, sweepers, and agricultural implements.

• Industrial Presses: Pressure unloading and directional control in auxiliary circuits.

• Wind Power Systems: Pressure switching for yaw and rotor braking systems.

• Lift Platforms: Emergency descent and load-holding for scissor lifts.

Expert Maintenance Tips:

• Installation Torque Control: Cartridge valves are sensitive to torque. Use a torque wrench (e.g., 30 Nm for WSM06020, 80 Nm for WSM12120) to prevent sleeve deformation that could bind the spool.

• Coil Safety: Never remove the coil while the solenoid is energized. Without the iron core circuit, the coil will rapidly overheat and potentially burn out.

• Fluid Cleanliness: Maintain system filtration at NAS 7-8 (ISO 18/15). For WK poppet valves, even microscopic metal shavings can damage the seat and cause leakage.