Product Overview
The DG4V-3-2C-M-P2-T-7-52 and DG4V-3-6C-M-P2-T-7-56 are core models in the Eaton Vickers (now Danfoss Power Solutions) DG4V series of direct-acting solenoid directional valves, NG6 (CETOP 3 / NFPA D03) size, with mounting pattern conforming to ISO 4401-03 standards. The DG4V series is Eaton Vickers’ most iconic solenoid directional valve product line, renowned for its 350 bar high pressure, 80 L/min flow capacity, and wet-armature solenoid quiet operation technology.
DG4V-3-2C-M-P2-T-7-52:
The DG4V-3-2C-M-P2-T-7-52 is a 4-way, 2-position solenoid directional valve featuring spring offset configuration. The spool type is 2C with single solenoid operation—when de-energized, the spool returns to the initial position by spring force.
DG4V-3-6C-M-P2-T-7-56:
The DG4V-3-6C-M-P2-T-7-56 is a 4-way, 3-position solenoid directional valve featuring spring centered configuration. The spool type is 6C with double solenoid operation—when de-energized, the spool automatically returns to neutral by spring force.
Model Code Breakdown:
DG4V – Directional Control Valve, subplate/manifold mounted, solenoid operated
3 – NG6 / CETOP 3 / D03 Size
2C / 6C – Spool Type
M – Standard manual override (push-pin type)
P2 – Manual override option (water-resistant override both ends)
T – Tank port pressure rating code
7 – Tank port pressure rating 210 bar
52 / 56 – Design/Configuration Series
About DG4V Series:
The DG4V series offers sizes from DG4V-3 (NG6) through DG4V-10. DG4V-3 is the standard performance model with flow up to 80 L/min; DG4V-3S is the high-performance model with flow up to 40 L/min. All DG4V series valves feature wet-armature solenoid construction—moving parts operate submerged in hydraulic oil for quiet, long-life, high-reliability operation. The DG4V series offers complete interchangeability with Rexroth 4WE, Yuken DSG, and other major brands.
As original Eaton Vickers DG4V series solenoid directional valves, these products offer complete interchangeability within the same series and size, requiring no modifications to mounting interfaces or piping layouts.
Technical Specifications
DG4V-3 Series Common Specifications:
Brand: EATON VICKERS / DANFOSS POWER SOLUTIONS
Series: DG4V-3 Series
Product Type: Direct-Acting Solenoid Directional Valve
Size: NG6 / CETOP 3 / NFPA D03
Mounting Standard: ISO 4401-03-02-0-05
Mounting Bolts: M5 × 45mm
Maximum Operating Pressure P/A/B: 350 bar (5075 psi)
Maximum Operating Pressure T: 210 bar (3045 psi)
Peak Pressure: 420 bar (6090 psi)
Maximum Flow Rate (Standard): 80 L/min (21 USgpm)
Maximum Flow Rate (High Performance 3S): 40 L/min (10.5 USgpm)
Response Time (On): 25–40 ms
Response Time (Off): 20–30 ms
Coil Power Consumption (DC): 16–20 W
Coil Power Consumption (AC): 25–30 VA
Internal Leakage: 3–5 drops/min @ 315 bar
Operating Temperature: -20°C to +80°C
Viscosity Range: 10–500 cSt
Protection Class: IP65 (with properly installed connector)
Duty Rating: Continuous (100%)
Weight: Approx. 2.3 kg
DG4V-3-2C-M-P2-T-7-52 Specifications:
Model: DG4V-3-2C-M-P2-T-7-52
Spool Configuration: 4-way, 2-position
Spring Arrangement: Spring Offset
Spool Type: 2C
Solenoid Configuration: Single Solenoid
Design Series: 52 Series
Voltage: 24V DC (standard)
Weight: Approx. 2.3 kg
DG4V-3-6C-M-P2-T-7-56 Specifications:
Model: DG4V-3-6C-M-P2-T-7-56
Spool Configuration: 4-way, 3-position
Spring Arrangement: Spring Centered
Spool Type: 6C
Solenoid Configuration: Double Solenoid
Design Series: 56 Series
Voltage: 24V DC (standard)
Weight: Approx. 2.3 kg
Key Technical Advantages
1. Wet-Armature Solenoid Design for Quiet, Long-Life Operation
The DG4V series features Eaton Vickers’ proven wet-armature solenoid technology—the movable iron core operates fully submerged in hydraulic oil. The hydraulic oil lubricates moving parts to reduce wear and cushions switching impact and vibration. Compared to dry-armature designs, the wet-type configuration delivers lower noise, longer service life, and higher reliability.
2. Direct-Acting Design for Fast Response
The DG4V-3 series features direct-acting spool construction—the solenoid directly actuates the spool with no pilot stage delay. Response time is only 25–40 ms (on) , ensuring extremely fast response and precise directional control—ideal for hydraulic systems requiring rapid shifting and precise timing.
3. 350 bar High Pressure and 80 L/min High Flow Capacity
Delivers 350 bar (5075 psi) operating pressure and 80 L/min (21 USgpm) flow capacity in a compact NG6 valve body. Tank port allowable back pressure reaches 210 bar (3045 psi) —placing it at the forefront of directional control valves in its class.
4. Extensive Spool Type and Configuration Options
The DG4V series offers multiple spool types including 0, 2, 6, 7, 8, 22 and spring configurations including spring offset (A/B/F), spring centered (C), and no-spring detented (N). The extensive selection flexibly adapts to diverse hydraulic circuit requirements.
5. Manual Override and IP65 Protection
Standard push-pin manual override enables emergency directional control during power failure. IP65 protection is achieved with properly installed connector, effectively resisting dust and water ingress.
6. International Standard Compliance for Global Interchangeability
DG4V-3 mounting conforms to ISO 4401-03 / CETOP 3 / NFPA D03 standards. DG4V series offers complete interchangeability with Rexroth 4WE, Yuken DSG, Parker D1VW, and Atos DHI—the industry-standard replacement for same-specification products.
Application Areas
DG4V-3-2C-M-P2-T-7-52 (4-way, 2-position, spring offset):
Hydraulic Power Units (HPU) — Directional control and flow switching
CNC Machine Tools — Directional control for hydraulic actuators
Construction Machinery — Directional control for mobile equipment
Unloading Circuits — System unloading and pressure release control
DG4V-3-6C-M-P2-T-7-56 (4-way, 3-position, spring centered):
Injection Molding Machinery — Directional control for clamping, injection, and ejection cylinders
Hydraulic Presses and Forging Equipment — Directional control for presses and forming equipment
Die-Casting Machines — Directional control for high-pressure casting equipment
Industrial Automation Production Lines — Hydraulic actuator control for automated production lines
Steel and Mining Equipment — Directional control for rolling mills and heavy-duty systems
DG4V-5 / DG4V-7 / DG4V-8 / DG4V-10 (Larger Sizes):
Large Injection Molding and Die-Casting Machines — High-flow, high-pressure directional control
Heavy Construction Machinery — Large excavators, loaders, and mobile equipment
Metallurgical Equipment — Directional control for rolling mill production lines
Marine and Port Machinery — Winch and crane hydraulic systems
Expert Maintenance Tips
1. Installation Guidelines
DG4V-3 series mounting must conform to ISO 4401-03 / CETOP 3 / NFPA D03 standards.
Use 4 M5×45 mounting bolts with recommended tightening torque of 30–36 N·m.
Thoroughly clean the mounting surface and all ports (P, A, B, T) before installation to prevent foreign particles from entering and causing spool sticking or seal damage.
Minimum recommended subplate thickness: 16 mm.
2. Hydraulic Fluid Cleanliness
Recommended fluid cleanliness: ISO 4406 18/16/13 or better.
Temperature range: -20°C to +80°C.
Viscosity range: 10–500 cSt.
Install a return line filter with minimum 10 μm filtration rating.
3. Electrical Connection Specifications
DG4V-3-2C-M-P2-T-7-52 and DG4V-3-6C-M-P2-T-7-56 use 24V DC supply (standard configuration). Verify supply voltage matches coil rated voltage before connection.
Electrical connector standard: ISO 4400 (DIN 43650) . Ensure the connector is fully locked to achieve IP65 protection.
Coils are rated for continuous duty (100%) , supporting 24/7 operation.
4. Manual Override
5. Periodic Maintenance Inspection
Inspect the valve body for external oil leakage every 2,000 operating hours or at least annually.
Check electrical connectors for looseness, oxidation, or moisture ingress.
Wet-armature solenoid coils can be replaced quickly without disturbing hydraulic connections.
If response lag or unstable shifting is observed, first check system fluid cleanliness and verify the spool is not sticking.
