Tokio Keiki DG4V-5-6C-M-P7-H-7-10 Directional Valve
The DG4V-5-6C-M-P7-H-7-10 is a high-performance, solenoid-operated directional control valve engineered by Tokio Keiki. As part of the DG4V-5 series, this valve is designed for subplate mounting to the ISO 4401-05 interface. It is specifically built to manage higher flow rates and pressures than standard 03-size valves, making it a critical component for medium-to-heavy industrial machinery where reliable switching and robust hydraulic performance are required.
Technical Specifications and Performance
This specific configuration is tailored for complex industrial demands. According to the manufacturer’s technical data:
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Mounting Interface: ISO 4401-05 (Size 05).
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Spool Type: 6C (3-position, spring centered, P-port blocked, A/B to Tank in neutral).
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Maximum Pressure: 31.5 MPa (315 bar).
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Maximum Flow Rate: Up to 120 L/min.
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Coil Specification: «7» Designator (typically 240V AC or specific high-voltage AC).
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Special Features: «M» (Manual override), «P7» (Internal pilot/external drain), and «H» (High-pressure specification).
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Design Number: 10 Series.
Key Features for Industrial Applications
Advanced Spool Design (6C)
The 6C spool configuration is widely used in systems where the actuators (cylinders or motors) need to be «unloaded» to the tank in the center position while the pump pressure is blocked. This prevents heat buildup during idle periods while allowing for smooth, controlled acceleration and deceleration of the hydraulic load.
High-Pressure «H» Specification
The «H» designation ensures the valve is built to withstand high-duty cycles at pressures up to 31.5 MPa. This robustness is complemented by the wet-armature solenoid design, where moving parts are lubricated by system oil, providing quiet operation and significantly longer service life compared to dry-gap solenoids.
