Vickers DG5S Pilot Operated Valve | DG5S-H8-3C | DG5S-H8-6C | NG25 Size 8 Hydraulic Directional Control Valve

Vickers DG5S Series Two-Stage Pilot Operated Directional Valves

Product Overview: The Vickers DG5S series is a rugged, two-stage pilot-operated solenoid directional valve engineered for high-flow hydraulic systems requiring a Size 25 (NG25 / Size 8) interface. This series utilizes a high-efficiency pilot valve to actuate the main stage spool, enabling the control of massive hydraulic power that exceeds the limits of direct-operated valves. Perfectly suited for large forging presses, heavy-duty metallurgy equipment, and industrial power units, the DG5S ensures high switching reliability even at pressures up to 315 bar.

Featured models: DG5S-H8-3C-T-M-H-50 and DG5S-H8-6C-MFW-B5.

Key Technical Advantages:

• Extreme Flow Capacity: The Size 8 configuration manages flow rates up to 700 L/min (185 USgpm), ensuring minimal pressure drop across heavy-duty circuits.

• Versatile Pilot/Drain Logic: Features internal or external pilot and drain options (e.g., “T” for Internal Drain) to match specific system requirements and reduce external piping.

• Wet-Armature Pilot Stage: Armatures operate in fluid for superior heat dissipation and quiet switching, neutralizing hydraulic shock for an extended service life.

• Manual Override (M): Equipped with a manual push-button to allow spool actuation during power outages or initial system commissioning.

Detailed Specifications & Parameters:

• Featured Model Matrix:

  • DG5S-H8-3C-T-M-H-50: Size 8 (NG25), High Performance (H), 3C Spool (Closed Center), Internal Drain (T), 50 Design Series.

  • DG5S-H8-6C-MFW-B5: Size 8 (NG25), High Performance, 6C Spool (P blocked, A/B to T), featuring MFW flow/monitoring options.

• Core Technical Specs:

  • Mounting Standard: ISO 4401-08 (Size 8 / NG25).

  • Max Operating Pressure: 315 bar (4500 psi).

  • Max Rated Flow: Up to 700 L/min.

  • Electrical Specs: Compatible with 24V DC, 110V/220V AC industrial power standards.