DG5V-7-3C-7-T-P7-H-80-JA289 | Eaton Vickers Directional Valve 350bar 300L/min

Product Overview

The DG5V-7-3C-7-T-P7-H-80-JA289 is an Eaton Vickers DG5V series solenoid-controlled, pilot-operated directional control valve, conforming to ISO 4401 Size 07 (NG10/Cetop7) specifications. This 40-design two-stage valve features a solenoid pilot stage controlling the main stage spool. Constructed from high-strength cast iron, the valve delivers 350 bar (5,000 psi) operating pressure and 300 L/min (80 US gpm) flow capacity. The DG5V series offers a choice of 18 different spool types, including meter-in, meter-out, and regeneration configurations, accommodating virtually any directional control requirement.

As an original Eaton Vickers DG5V series directional control valve, this product offers complete interchangeability with any DG5V-7 size valve in the series, requiring no modifications to mounting interfaces or piping layouts.

Model Code Breakdown (DG5V-7-3C-7-T-P7-H-80-JA289):

• DG5V – Solenoid-Controlled Pilot-Operated Directional Valve Series

• 7 – ISO 4401 Size 07 (NG10)

• 3C – Spool/Spring Configuration (4-way, 3-position, spring centered)

• 7 – Design Number (7 = 40 Series design)

• T – Terminal Type (T = Terminal Box Type)

• P7 – Pilot Pressure / Option Code

• H – High-Performance Pilot Valve (DG4V-3-60)

• 80 – Coil Voltage Code

• JA289 – Factory Internal Configuration Code

Technical Specifications 

• Model: DG5V-7-3C-7-T-P7-H-80-JA289

• Brand: EATON VICKERS

• Series: DG5V Series, 40 Design, Solenoid-Controlled Pilot-Operated

• Size: ISO 4401 Size 07 (NG10 / Cetop7)

• Maximum Operating Pressure: 350 bar (5,000 psi)

• Maximum Flow Rate: 300 L/min (80 US gpm)

• Spool Type: 3C (4-way, 3-position, spring centered)

• Pilot Control: Solenoid Controlled, Pilot Operated

• Pilot Valve: DG4V-3-60 Series High-Performance Pilot Valve

• Mounting Type: Surface Mounting

• Ports: P, A, B, T, X, Y

• Spool/Spring Arrangement: Spring Centered

• Design Series: 40 Series

• Compatible Fluids: Petroleum-based hydraulic oil / Phosphate ester fluids (F3 option)

• Fluid Cleanliness Requirement: ISO 4406 19/17/14 (formerly 18/14)

• Weight: Approx. 8.5 kg

• Bolt Height: 33 mm

Key Technical Advantages

1. High-Pressure High-Flow Performance
The DG5V-7 series delivers an exceptional combination of 350 bar (5,000 psi) operating pressure and 300 L/min (80 US gpm) flow capacity. This performance places it at the forefront of ISO 4401 Size 07 directional control valves, making it ideal for demanding high-pressure, high-flow hydraulic systems.

2. Two-Stage Pilot-Operated Design
The two-stage configuration employs a solenoid pilot valve (DG4V-3-60) to control the main stage spool. This design allows the solenoid to actuate a small pilot spool, which in turn controls the main stage for large flow directional switching—significantly reducing solenoid power consumption while ensuring fast response characteristics.

3. Extensive Spool Type and Feature Options
The DG5V series offers up to 18 different spool types, including meter-in, meter-out, and regeneration configurations. Optional features include pilot choke adjustments, stroke adjusters, and integral P-port pilot pressure generators. Both internal and external pilot supply and drain configurations are available to accommodate diverse circuit design requirements.

4. Low Shock and Fast Response Characteristics
All spools are engineered to provide excellent low-shock, fast-response characteristics. Optional stroke and pilot choke adjusters allow further optimization of shifting characteristics, maximizing machine service life.

5. Service-Friendly Design
Solenoid coils can be replaced without disturbing the hydraulic envelope or removing hydraulic connections. The extensive range of optional features enables the DG5V series to match virtually every application within its power capacity.

Application Areas

• Injection Molding Machinery — Clamping, injection, and ejection cylinder directional and speed control

• Die-Casting and Foundry Equipment — Directional switching and actuator control in high-pressure, high-flow hydraulic systems

• Machine Tools and Machining Centers — Directional control for CNC machine hydraulic systems

• Marine and Offshore Equipment — Hydraulic control for steering gears, winches, and cranes

• Pulp, Paper, and Wood Processing — Hydraulic systems for paper machines and wood processing equipment

• Test Equipment and Simulation Systems — Directional control for hydraulic test benches and simulation platforms

• Wind Turbine Systems — Pitch control and braking system hydraulics

Expert Maintenance Tips

1. Installation Guidelines

• The mounting surface must conform to ISO 4401 Size 07 standards. Thoroughly clean the mounting surface and ports before installation to prevent foreign particles from entering the valve and causing spool sticking or seal damage.

• Tighten mounting bolts evenly to the specified torque to ensure uniform compression of the sealing gasket between the valve body and mounting surface.

2. Hydraulic Fluid Cleanliness

• Recommended fluid cleanliness: ISO 4406 19/17/14 (formerly Vickers 18/14) or better.

• Install a return line filter with minimum 25 μm filtration rating to ensure fluid entering the valve meets cleanliness requirements.

3. Pilot Pressure and Drain Configuration

• DG5V series supports both internal and external pilot supply and drain connections. When using external pilot supply, pilot pressure must always exceed tank line pressure by at least the required minimum pilot pressure.

• When using internal pilot supply with open-center spools (types 0, 1, 4, 8, 9, and 11), external drain must be used.

4. Electrical Connection Specifications

• Solenoid coils are available in both AC and DC voltage options. Verify supply voltage matches the coil rated voltage before connection.

• For hazardous locations, ATEX, UL, and CSA certified explosion-proof coil options are available.

5. Periodic Maintenance Inspection

• Inspect the valve body for external oil leakage every 2,000 operating hours or at least annually.

• Check solenoid coil terminal connections for looseness or oxidation, and inspect pilot valve screens for blockage.

• Coils can be replaced without removing hydraulic connections—service directly on the valve body.