SWM Series Solenoid Valve | SWM-G02-C4-D24-30 | SWM-G02-C4-D12 | Directional Control Valve

The SWM Series Solenoid Directional Control Valves by Chengyuan Hydraulic are high-performance, low-power consumption NG06 (CETOP 03) valves. Optimized for high-frequency switching and complex electrical environments, the SWM series (e.g., SWM-G02-C4-D24) provides 100% original-place interchangeability. Utilizing advanced wet-pin solenoid technology, these valves deliver quiet operation and exceptional reliability at pressures up to $31.5\text{ MPa}$. Every unit is subjected to 100% simulated condition testing, making them the premier choice for precision machine tools, injection molding, and automated production lines.

Technical Specifications :

• Representative Models: SWM-G02-C4-D24-30-D-E015 / SWM-G02-C4-D12-30-S005

• Interface Standard: NG06 / CETOP 03 / Size 6

• Spool Function: C4 (3-position, 4-way, All ports blocked in neutral)

• Max Operating Pressure: $31.5\text{ MPa (315 bar / 4568 psi)}$

• Max Back Pressure (T-port): $16\text{ MPa (160 bar)}$

• Max Flow Capacity: $63\text{–}80\text{ L/min}$

• Control Voltage: D24 (24V DC) / D12 (12V DC)

• Switching Frequency: Up to $240\text{–}300$ cycles per minute

• Fluid Compatibility: Mineral oils / Phosphate esters (with Viton seals)

Key Technical Advantages:

• Five-Chamber Body Casting: The optimized five-chamber design minimizes internal flow resistance. This reduces pressure drop ($\Delta P$) and limits heat generation, ensuring energy efficiency in continuous-duty industrial applications.

• Low-Power Wet-Pin Solenoid: The solenoid core operates submerged in oil, eliminating dynamic seal leakage and providing superior cooling. This technology ensures the coils remain at a stable temperature even during long-term 24VDC/12VDC operation.

• Alloy Steel Spool Grinding: Spools undergo multi-stage heat treatment and ultra-precision grinding for maximum surface hardness. This maintains minimal internal leakage at $31.5\text{ MPa}$, ensuring the precise positioning of actuators.

• Surge & Shock Optimization: Models with S003/S005 suffixes are specifically tuned to handle electrical surges or hydraulic shocks. Internal dampening adjustments absorb pressure waves during switching, extending the service life of hoses and fittings.

Application Areas:

• Precision Machine Tools: Automatic tool changing (ATC) and workpiece clamping.

• Automated Assembly Lines: Logic control for auxiliary cylinders and hydraulic/pneumatic interfaces.

• Mobile Equipment: Lift platforms and small material handling equipment.

Expert Maintenance Tips:

• Solenoid Air Bleeding: If switching response is sluggish after installation, use the manual override or bleed plug at the end of the solenoid to exhaust trapped air.

• Voltage Stability: Ensure the power supply remains within $\pm 10\%$ of the rated voltage. Insufficient voltage may lead to switching failure, while excessive voltage can cause coil burnout.

• Filtration Standard: To prevent spool sticking, maintain system filtration at $15\mu m$ or better, with an oil cleanliness level of ISO 4406 19/17/14.