Parker D1VW Series Solenoid Valve | D1VW004CNJW91 D1VW001CVJW D1VW078KNJW | Directional Control Valve

The D1VW Series directional control valves from Chengyuan Hydraulic are high-performance, direct-operated solenoid valves fully compatible with Parker Hannifin industrial standards. Featuring the standard NG06 (CETOP 03) mounting interface, this series is widely utilized in machine tools, injection molding machines, and various industrial automation systems. For critical models like D1VW004CNJW91 and D1VW001CVJW, we utilize precision-ground spools and corrosion-resistant wet-pin solenoids. Every valve undergoes 100% simulated condition testing before delivery to ensure switching reliability and minimal internal leakage under high pressures (350 bar), guaranteeing 100% original-place interchangeability.

Technical Specifications :

• Nominal Size: NG06 / CETOP 03 / NFPA D03

• Max Operating Pressure (P, A, B Ports): 350 bar (5075 psi)

• Max Operating Pressure (T Port): 210 bar (DC) / 140 bar (AC)

• Max Flow Rate: Up to 80 L/min (spool dependent)

• Spool Functions: 001 (All blocked), 004 (P-blocked, A/B to T), 078 (Specific logic)

• Control Voltage: J (24V DC), K (12V DC), Y (110V AC), T (230V AC)

• Sealing Material: N (Nitrile – Standard), V (Viton – High Temp/Synthetic)

• Electrical Connection: JW (Junction box with LED)

• Mounting Pattern: DIN 24340 A6 / ISO 4401-03-02-0-05

Key Technical Advantages:

• High-Pressure & High-Flow Optimization: The valve body features CFD-optimized flow paths, maintaining low pressure drops (Δp) even at 80 L/min. The 350 bar rating makes it suitable for heavy-duty industrial environments, enhancing actuator responsiveness.

• Wet-Pin Solenoid Technology: The solenoid armature operates submerged in system oil, providing lubrication, damping, and heat dissipation. This design eliminates dynamic seal friction, vastly extending the valve’s service life and shock resistance.

• Precision Spool Matching: Spools are multi-stage heat-treated and precision-ground to micron tolerances. This ensures a perfect fit within the valve body, balancing smooth shifting with industry-leading low leakage rates.

• 100% Dynamic Validation: Chengyuan subjects every D1VW valve to switching frequency tests under full-load conditions, verifying response times and centering accuracy to ensure 24/7 operational stability.

Application Areas:

• Machine Tools: Clamping, indexing, and tool-changing hydraulic circuits.

• Plastics Machinery: Injection and mold movement control.

• General Industry: Primary directional control for power units and automation lines.

Expert Maintenance Tips:

• Mounting Torque Adherence: When installing the D1VW, use a torque wrench to tighten M5x30 (12.9 grade) bolts to 7.6 Nm. Uneven or excessive torque can distort the valve body and cause spool binding.

• Voltage Management: Ensure the solenoid supply stays within ±10% of the nominal voltage. Low voltage causes weak shifting, while overvoltage accelerates coil degradation.

• Thermal Control: Maintain system oil temperatures between 30°C and 60°C. For high-temperature environments, specify the Viton (V) seal option.