DG3V-8-2C-10 Vickers Danfoss Directional Valve 350 Bar

Product Overview

The DG3V-8-2C-10 is a Vickers by Danfoss DG3V-8 Series 10 remote pilot operated directional control valve.

This distinction is important: the DG3V-8 is not an electrically actuated solenoid valve. It uses remote hydraulic pilot pressure to position the main spool. Therefore, the correct technical classification is remote pilot operated directional valve.

The valve is built on the Size 8 / CETOP 8 / NFPA D08 platform. Danfoss documentation specifies a pressure rating of 350 bar (5000 psi) and a Series 10 Size 8 flow capability of up to 700 L/min (185 USgpm). The exact model code identifies spool 2, spring-centered operation and Series 10 construction.

The complete configuration includes ISO 4401-08 mounting, Buna-N seals, two-stage construction, spring-centered spool positioning, external pilot supply and internal pilot drain.

For OEM replacement projects, we focus on dimensional compatibility, spool function, spring-centering behavior and pilot control compatibility, supported by 100% simulated operating-condition testing.

Technical Specifications

• Brand: Vickers by Danfoss
• Model: DG3V-8-2C-10
• Product Type: Remote Pilot Operated Directional Control Valve
• Design Series: Series 10
• Valve Size: 8
• Interface: ISO 4401-08
• NFPA Interface: D08
• Stage: Two Stage
• Spool Type: 2
• Spool Function: Closed to T, all ports
• Spring Arrangement: C — Spring Centered
• Actuation: Hydraulic / Remote Pilot
• Pilot Supply: External
• Pilot Drain: Internal
• Pressure Rating: 350 bar (5000 psi)
• Maximum Flow: 700 L/min (185 USgpm)
• Gauge Port: 0.4375-20 UNF-2B
• Seal Material: Buna-N
• Fluid Compatibility: Petroleum Oils
• Recommended Fluid Cleanliness: ISO 4406 19/17/14
• Working Temperature: -20°C to +70°C
• Manual Override: None
• Electrical Connection: None
• Solenoid Coil: None
• Pump Displacement: N/A
• Motor Speed: N/A
• Peak Pressure: Not separately specified for this exact model in the cited public manufacturer data
• Weight: Not shown on the current official product page; third-party listings report approximately 16.1 lb, subject to confirmation from the original drawing/BOM.

Key Technical Advantages

1. 350 Bar High-Pressure Capability

The DG3V-8 platform is rated to 350 bar, making it suitable for demanding industrial hydraulic circuits where higher pressure density is required.

2. Up to 700 L/min Flow Capability

The Size 8 platform supports flow rates up to 700 L/min (185 USgpm) according to the Danfoss technical documentation. Actual allowable flow must still be evaluated against pressure drop and complete circuit conditions.

3. Two-Stage Main Valve Architecture

The two-stage construction separates pilot control from main-stage flow handling. The pilot circuit positions the main spool, allowing the valve to control high flow within a standardized Size 8 package.

4. Spring-Centered Spool

The C code identifies spring-centered spool positioning. The main spool is controlled toward its neutral position by the spring arrangement, providing defined centering behavior.

5. Cast Body and Cored Flow Passages

Danfoss highlights the use of a solid cast body and cored passages to improve structural strength and minimize pressure drop. This design consideration is particularly relevant in high-flow hydraulic systems.

6. Standard CETOP 8 Interface

The ISO 4401-08 / NFPA D08 interface supports integration into standardized industrial manifolds and subplates and simplifies replacement in existing hydraulic equipment.

Application Areas

Typical applications include:

• Machine tools
• Hydraulic presses
• Die casting equipment
• Primary metal processing
• Paper machinery
• Test and simulation equipment
• Industrial hydraulic power units
• Large hydraulic cylinders
• Large hydraulic motor circuits

Danfoss positions the DG3V-8 / DG5V-8 platform for demanding industrial and mobile applications, including machine tools, presses, primary metal, paper and test equipment.

Expert Maintenance Tips

Verify Remote Pilot Conditions

The DG3V-8-2C-10 is hydraulically pilot operated. If the main spool fails to shift, verify remote pilot supply pressure and drain conditions before investigating electrical components.

Verify Spool 2 Function

The 2 code is part of the hydraulic function and should not be replaced by another spool configuration simply because the mounting interface is identical.

Maintain Hydraulic Cleanliness

The specified cleanliness recommendation is 19/17/14. Contamination can affect pilot passages and spool movement and may produce sluggish or incomplete shifting.

Inspect Spring-Centering Behavior

Because this model uses C spring-centered construction, abnormal neutral positioning should prompt inspection of pilot pressure, spool contamination and spring condition.

Check the CETOP 8 Mounting Interface

Inspect the ISO 4401-08 surface, seals, bolt pattern and flow passages before installing a replacement valve.