Tokio Keiki DG3VP-3-102A-20 Directional Control Valve
The DG3VP-3-102A-20 is a high-performance, solenoid-operated poppet-type directional control valve manufactured by Tokio Keiki (formerly Tokimec). This series is renowned for its «zero-leakage» design, utilizing a guided poppet mechanism that ensures a complete shut-off of flow when de-energized. Engineered for versatility, it is a subplate-mounted valve that adheres to the ISO 4401-03 interface, making it an ideal choice for industrial applications where internal bypass must be strictly eliminated to maintain system pressure and load-holding positions.
Technical Specifications and Performance
The DG3VP-3-102A-20 is built to operate under high-pressure conditions with consistent reliability. Key technical data from the manufacturer include:
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Mounting Interface: ISO 4401-03 (Gasket Mounted).
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Spool/Poppet Type: 102A (Normally Open, Spring Offset).
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Design Series: 20 Series.
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Maximum Operating Pressure: 31.5 MPa (315 bar).
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Maximum Flow Rate: 40 L/min.
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Allowable Tank Port Back Pressure: 21 MPa (210 bar).
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Fluid Compatibility: Mineral oil, water-glycol, and phosphate ester (with F3 prefix).
Key Features for Industrial Applications
Zero Internal Leakage
Unlike traditional spool valves that rely on a sliding clearance, the poppet-type construction of the DG3VP-3-102A-20 provides a metal-to-metal seat. This ensures that the valve remains leak-tight in the closed position, which is critical for safety-related circuits and energy-efficient hydraulic systems.
Fast and Consistent Response
The direct-acting solenoid actuation allows for rapid switching times. This responsiveness is essential for high-cycle industrial machinery, ensuring that timing and synchronization within the hydraulic circuit remain precise over millions of operations.
