4WE-G02-B2-D2-N Solenoid Directional Valve: Comprehensive Overview
Model Analysis & Core Parameters
• Model Structure:
• 4WE: 4-way solenoid directional valve with swashplate variable design for flow control.
• G02: Port size specification (e.g., NG6/NG10), corresponding to flow rates of 25–40 L/min and pressure rating of 250 bar (peak 315 bar).
• B2: Voltage type (e.g., DC24V/AC220V), wet-type solenoid design supporting manual/automatic switching.
• D2: Functional features (e.g., dual solenoid control, indicator lights), compatible with ISO4401/CETOP mounting standards.
• N: Additional features (e.g., high-temperature resistance, explosion-proof certification), with modular expansion capabilities.
• Key Specifications:
• Operating Pressure: Continuous 250 bar, peak 315 bar; temperature range -30°C to +80°C.
• Flow Range: 25–40 L/min (varies by port size), volumetric efficiency ≥95%, leakage ≤5ml/min.
• Electrical Characteristics: DC24V/AC220V, power 17–27W, response time ≤80ms, insulation class H (180°C).
• Structural Features: Cast iron/stainless steel construction, oil-immersed design for reduced noise (≤65dB), modular components for easy maintenance.
Performance Advantages & Applications
• Core Strengths:
• Energy Efficiency: Low power consumption reduces oil temperature rise, ideal for energy-saving hydraulic systems; high volumetric efficiency minimizes leakage for high-pressure applications.
• Low Noise Operation: Optimized fluid dynamics ensure noise ≤65dB across full pressure range, meeting CE standards and passing 1500V/min high-voltage testing.
• High Reliability: Special alloy materials enhance wear resistance by 50%; ductile iron valve body withstands impact; seals operate in -30°C to +180°C environments.
• Application Scenarios:
• Industrial Equipment: Injection molding machines, machine tools, forging presses, plastic molding machines, hydraulic cylinder control.
• Construction Machinery: Concrete mixers, cranes, excavators, road construction equipment.
• Specialized Industries: Marine, aviation, metallurgy, tire forming machines, specialized machinery.
• Automation Systems: Robotics, elevator systems, smart manufacturing, supporting multi-device linkage and remote monitoring.
Maintenance & Troubleshooting
• Routine Maintenance:
• Oil Management: Use L-HM32/46 anti-wear hydraulic oil, maintain oil temperature ≤65°C, replace oil and filters every 500–1000 hours.
• Operational Monitoring: Regularly check pressure, flow, temperature, noise, and leakage; investigate abnormal vibrations or pressure fluctuations.
• Seal Inspection: Quarterly checks on shaft seals and pipe connections to prevent leaks; coil resistance deviation ≤10%.
• Common Fault Handling:
• Delayed Shifting: Improve oil cleanliness to NAS 7 grade; repair scratches >0.01mm on the spool.
• Pressure Anomalies: Inspect intake piping for leaks, check relief valve function, or replace worn port plates.
• Vibration/Noise: Verify coupling alignment, bearing condition, and piping fixation to avoid cavitation/resonance; ensure solenoid temperature rise ΔT <65°C.
• Electrical Issues: Implement electrical interlocking for dual solenoid systems to prevent failure; maintain coil insulation resistance >100MΩ.
Industry Certifications & Reliability
• Quality Assurance: Complies with ISO 5599, DIN EN ISO 19598 standards; meets CE, ROHS environmental requirements for global market compatibility.
• Durability: Modular design enables quick repairs and upgrades; valve body forged via resin-sand molding with ultrasonic cleaning to eliminate debris.
• Case Validation: In nuclear and metallurgical applications, maintenance intervals reach 8000 hours, reducing downtime by 67% and procurement costs by 45%.
