Product Overview
The DG5V-5-2C-2-T-M-U-H7-10 and DG5V-8-H-2A-E-M-U-H-10 are key models in the Eaton Vickers (now Danfoss Power Solutions) DG5V series of two-stage pilot-operated directional control valves, widely used for high-flow directional control in diverse industrial hydraulic systems.
DG5V-5-2C-2-T-M-U-H7-10:
The DG5V-5-2C-2-T-M-U-H7-10 is an Eaton Vickers DG5V-5 series solenoid-controlled pilot-operated directional valve, with DG5V-5 corresponding to CETOP 5 / NFPA D05 / ISO 4401-05 interface. This two-stage valve features an integrally-mounted wet-armature solenoid pilot valve (DG4V-3 type) controlling the main stage spool. The DG5V-5 series offers a wide selection of spool types including spring-offset, spring-centered, and detented versions.
The DG5V-5-2C-2-T-M-U-H7-10 features 2C spool configuration (closed center — all ports blocked) with spring-centered arrangement. This model is 10 Design Series.
Model Code Breakdown (DG5V-5-2C-2-T-M-U-H7-10):
DG5V – Solenoid-Controlled Pilot-Operated Directional Valve
5 – ISO 4401-05 Interface, Size 05 (CETOP 5 / NFPA D05)
2C – Spool Type 2 + Spring Centered (C) — closed center, all ports blocked
2 – Pilot Control Option Code
T – Internal Pilot Drain
M – Standard Solenoid Identification (per ANSI B93.9)
U – ISO 4400 / DIN 43650 Electrical Connector
H7 – 24V DC Solenoid Coil, 30W
10 – 10 Design Series
DG5V-8-H-2A-E-M-U-H-10:
The DG5V-8-H-2A-E-M-U-H-10 is an Eaton Vickers DG5V-8 series solenoid-controlled pilot-operated directional valve, with DG5V-8 corresponding to CETOP 8 / NFPA D08 / ISO 4401-08 interface. This two-stage directional valve features an integrally-mounted wet-armature solenoid pilot valve. The DG5V-8 series is primarily used to control large flows up to 700 L/min at 350 bar.
The DG5V-8-H-2A-E-M-U-H-10 features 2A spool configuration (closed center — all ports blocked) with spring offset arrangement. This model is equipped with a high-performance pilot valve (H code — DG4V-3-60 high performance pilot valve).
Model Code Breakdown (DG5V-8-H-2A-E-M-U-H-10):
DG5V – Solenoid-Controlled Pilot-Operated Directional Valve
8 – ISO 4401-08 Interface, Size 08 (CETOP 8 / NFPA D08)
H – High-Performance Pilot Valve (DG4V-3-60)
2A – Spool Type 2 + Spring Offset (A) — closed center, all ports blocked
E – Option Code
M – Standard Solenoid Identification
U – ISO 4400 / DIN 43650 Electrical Connector
H – 24V DC Solenoid Coil
10 – 10 Design Series
As original Eaton Vickers DG5V series pilot-operated directional valves, these products offer complete interchangeability within the same series and size, requiring no modifications to mounting interfaces or piping layouts.
Technical Specifications
DG5V-5-2C-2-T-M-U-H7-10 Specifications:
Model: DG5V-5-2C-2-T-M-U-H7-10
Brand: EATON VICKERS / DANFOSS POWER SOLUTIONS
Series: DG5V-5 Series, 10 Design Series
Product Type: Solenoid Controlled Pilot Operated Directional Valve
Interface Standard: ISO 4401-05 / CETOP 5 / NFPA D05
Spool Configuration: 2C (Closed Center — all ports blocked)
Spring Arrangement: Spring Centered
Maximum Operating Pressure: 315 bar (4567 psi)
Maximum Flow Rate: 160 L/min (42 US gpm)
Pilot Control: Solenoid Controlled, Pilot Operated
Pilot Drain: Internal Pilot Drain
Coil Voltage: 24V DC
Power Consumption: 30 W
Electrical Connector: ISO 4400 / DIN 43650
Seal Material: Viton
Design Series: 10 Series
Weight: Approx. 8–10 kg (Reference only)
DG5V-8-H-2A-E-M-U-H-10 Specifications:
Model: DG5V-8-H-2A-E-M-U-H-10
Brand: EATON VICKERS / DANFOSS POWER SOLUTIONS
Series: DG5V-8 Series, 10 Design Series
Product Type: Solenoid Controlled Pilot Operated Directional Valve
Interface Standard: ISO 4401-08 / CETOP 8 / NFPA D08
Spool Configuration: 2A (Closed Center — all ports blocked)
Spring Arrangement: Spring Offset
Pilot Valve Type: H — High-Performance Pilot Valve (DG4V-3-60)
Maximum Operating Pressure: 350 bar (5000 psi)
Maximum Flow Rate: 700 L/min (185 US gpm)
Pilot Control: Solenoid Controlled, Pilot Operated
Pilot Supply/Drain: Internal Pilot Supply / External Pilot Drain
Coil Voltage: 24V DC
Power Consumption: 30 W
Electrical Connector: ISO 4400 / DIN 43650
Seal Material: Viton
Bolt Height: 42.5 mm
Design Series: 10 Series
Weight: Approx. 8.5 kg
Key Technical Advantages
1. Two-Stage Pilot-Operated Design
Both DG5V-5 and DG5V-8 series feature a two-stage configuration with an integrally-mounted wet-armature solenoid pilot valve (DG4V-3 type) controlling the main stage spool. The separation of pilot and main stages 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.
2. Superior High-Flow Capacity
The DG5V-5-2C-2-T-M-U-H7-10 delivers 315 bar operating pressure with 160 L/min flow capacity. The DG5V-8-H-2A-E-M-U-H-10 takes this further with 350 bar operating pressure and an exceptional 700 L/min flow capacity. The DG5V-8 series offers industry-leading high-flow control performance in its class.
3. Proven Wet-Armature Solenoid Technology
The DG5V series features Eaton Vickers’ proven wet-armature solenoid technology, with internal moving parts lubricated by hydraulic oil. Compared to dry-armature designs, the wet-armature configuration delivers lower noise levels, longer service life, and faster response. Solenoid coils can be changed quickly without disturbing hydraulic connections.
4. Excellent Low-Shock Characteristics
All spools are engineered to provide excellent low-shock, fast-response characteristics. An optional pilot choke module can control main spool travel speed, further optimizing shifting characteristics and maximizing machine service life.
5. Extensive Spool Type and Configuration Options
The DG5V-5 and DG5V-8 series offer a wide selection of spool types (0, 2, 6, 52, etc.) including spring-offset, spring-centered, and detented versions. Both internal and external pilot supply and drain configurations are available to accommodate diverse circuit design requirements.
6. Optional Main Spool Position Monitoring
The DG5V-5 series offers an optional main stage spool position monitoring switch (CE marked), providing critical spool position feedback for safety-related applications.
7. International Standard Compliance and High Installation Compatibility
The DG5V-5-2C-2-T-M-U-H7-10 mounting surface conforms to ISO 4401-05 / CETOP 5 / NFPA D05. The DG5V-8-H-2A-E-M-U-H-10 mounting surface conforms to ISO 4401-08 / CETOP 8 / NFPA D08. Both are fully compatible with globally adopted interfaces, enabling direct replacement of same-series, same-specification products.
Application Areas
High-Flow Hydraulic Systems — Directional control for demanding high-flow industrial hydraulic systems
Injection Molding Machinery — Directional control for clamping, injection, and ejection cylinders in large-tonnage machines
Die-Casting and Forging Equipment — Directional switching in high-pressure, high-flow hydraulic systems
Steel and Metal Processing Equipment — High-flow hydraulic control for rolling mills and production lines
Construction Machinery — Directional control for large mobile equipment hydraulic systems
Marine and Offshore Equipment — Directional control for steering gears and winch hydraulic systems
Hydraulic Power Units (HPU) — Directional control and flow switching for high-flow hydraulic systems
Industrial Automation Systems — High-flow hydraulic actuator control for automated production lines
Expert Maintenance Tips
1. Installation Guidelines
DG5V-5-2C-2-T-M-U-H7-10 mounting surface must conform to ISO 4401-05 / CETOP 5 / NFPA D05. DG5V-8-H-2A-E-M-U-H-10 mounting surface must conform to ISO 4401-08 / CETOP 8 / NFPA D08.
Thoroughly clean the mounting surface and all ports (P, A, B, T, X, Y) 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 proper sealing between the valve body and mounting surface.
DG5V-8 series bolt height is 42.5 mm.
2. Hydraulic Fluid Cleanliness
3. Pilot Pressure and Drain Configuration
DG5V-5-2C-2-T-M-U-H7-10 features internal pilot drain.
DG5V-8-H-2A-E-M-U-H-10 features internal pilot supply and external pilot drain.
The drain port (Y) must be routed directly to the tank with a pulse-free line, with no back pressure at the drain port.
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
Both models use 24V DC supply. Verify supply voltage matches coil rated voltage before connection.
Electrical connector is DIN 43650 / ISO 4400 standard. Ensure the connector is fully locked to prevent contact issues caused by vibration.
DG5V-5-2C-2-T-M-U-H7-10 coil power rating is 30 W.
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.
Solenoid coils can be replaced quickly without disturbing hydraulic connections.
If response lag or reduced control precision is observed, first check system fluid cleanliness and pilot screens for blockage.
