KEIKI DIRECTIONAL CONTROL VALVE DG4VC-3-6C-M-PN2-H-7-56-JA872

KEIKI DIRECTIONAL CONTROL VALVE DG4VC-3-6C-M-PN2-H-7-56-JA872

4 week ago

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Ningbo Hengnuo Hydraulic Drive Co.,Ltd

 4 year year

Product details

I. Product Overview

TheDG4VC-3-6C-M-PN2-H-7-56-JA872is a high-performance solenoid-operated directional control valve manufactured byTokyo Keiki (KEIKI), part of theDG4VC series. Renowned for its durability, long service life, high quality, and quiet operation, this valve is widely used in hydraulic systems for controlling gases, liquids, and steam.

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II. Key Specifications

1. Model Breakdown:

• DG4VC: Series designation for directional control valves.

• 3: Design sequence number.

• 6C: Port size and flow characteristic code.

• M: Mounting type (plate-mounted connection).

• PN2: Rated pressure class (typically 16 MPa or higher).

• H: Electrical connection type (e.g., indicator light, surge suppressor).

• 7-56: Solenoid specification and voltage code (e.g., DC24V).

• JA872: Special configuration or customer-specific code.

2. Performance Characteristics:

• Rated Pressure: 16 MPa (some models up to 35 MPa).

• Flow Range: Supports high-flow requirements (e.g., ~60 L/min for 6C port size).

• Response Time: Fast switching for high-frequency operation.

• Electrical Life: Long-life design reduces maintenance frequency.

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III. Structural Features

1. Wet Armature Design:

• The spool operates submerged in oil, eliminating friction between movable seals and the valve stem, reducing oil leakage risks.

• Slow-motion operation minimizes impact, ensuring smooth and silent operation even under high pressure and frequent switching.

2. Low-Resistance Flow Path:

• Special flow channel design reduces pressure loss, improving energy efficiency.

• Lowers oil temperature, extends hydraulic fluid lifespan, and reduces thermal deformation of machinery.

3. High-Strength Materials:

• Body constructed from cast iron or high-strength alloys for durability under high-pressure and harsh conditions.

• Special solenoid design ensures safety for high-pressure applications.

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IV. Applications

1. Industrial Machinery: Hydraulic presses, injection molding machines, and machine tools requiring precise flow control.

2. Construction Machinery: Hydraulic systems in excavators, cranes, and road rollers.

3. Marine Industry: Deck machinery and steering systems in marine environments.

4. Automotive Industry: Testing equipment and automated production lines for hydraulic control.

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V. Installation and Usage Guidelines

1. Mounting Orientation:

• Valves without spring centering must be installed with the spool axis horizontal to ensure reliable switching.

• Spring-centered or spring-offset valves have no restrictions on mounting angle.

2. Electrical Control:

• Ensure the opposite end is de-energized during excitation to prevent signal interference.

• Spring-centered and spring-offset valves require continuous excitation during circuit switching.

• Recommended energization time exceeds 0.1 seconds for low power efficiency.

3. Fluid Management:

• As a wet-type valve, it must remain filled with oil to prevent cavitation.

• Avoid exceeding allowable backpressure at the T port to prevent pressure fluctuations.

4. Maintenance Recommendations:

• Regularly check oil cleanliness (recommended NAS Class 10 or better).

• Maintain oil viscosity within 20–400 mm²/s during oil changes.

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VI. Key Advantages

1. Energy Efficiency: Low-resistance design reduces energy loss, aligning with sustainability trends.

2. Durability: Wet-type structure and high-strength materials extend service life.

3. Quiet Operation: Slow-motion design minimizes noise, improving workplace comfort.

4. Flexible Configuration: Multiple electrical wiring options (e.g., indicator lights, surge suppressors) meet customized needs.

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Ningbo Hengnuo Hydraulic Drive Co.,Ltd

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Address: Ningbo, China

Main Product: hydraulic motor, gear box, hydraulic pump, hydraulic valve , hydraulic winch, hydraulic system

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