DSHG-06-2B2 Yuken Directional Valve 315bar

Product Overview

The DSHG series electro-hydraulic pilot-operated directional control valve is built for high-pressure, high-flow hydraulic systems in strict compliance with ISO 4401 standards (covering NG16/CETOP 07, NG22/CETOP 08, and NG32/CETOP 10 sizes). Engineered as a premium, high-reliability aftermarket replacement for original Yuken DSHG series valves (including specific model codes DSHG-10-3C4-A100-41, DSHG-06-2B2-C2-T-D24-53, and DSHG-04-3C4-T-A100-51), this series guarantees 100% direct drop-in interchangeability. Comprising a highly dynamic DSG-01 solenoid pilot valve and a main stage valve body, the DSHG series delivers smooth, shock-free spool shifting and minimal internal leakage under working pressures up to 315 bar. Every unit undergoes 100% simulated full-load factory testing to ensure maximum field durability in severe operating environments.

Technical Specifications

• Model Codes: DSHG-06-2B2-C2-T-D24-53, DSHG-10-3C4-A100-41, DSHG-04-3C4-T-A100-51 (Fully covering DSHG-04, DSHG-06, DSHG-10 sub-variants)

• Mounting Interface: ISO 4401-07 (DSHG-04), ISO 4401-08 (DSHG-06), ISO 4401-10 (DSHG-10)

• Max Operating Pressure (Ports P, A, B): 315 bar (31.5 MPa / 4567 psi)

• Max Tank Pressure (Port T): 160 bar (Internal drain ‘T’) / 210 bar (External drain ‘ET’)

• Pilot Control Pressure Range: Min. 10 bar (1.0 MPa) to Max. 210 bar (21.0 MPa)

• Max Flow Rate: DSHG-04: up to 300 L/min; DSHG-06: up to 500 L/min; DSHG-10: up to 1100 L/min

• Control Method: Electro-hydraulic pilot-operated (equipped with heavy-duty DSG-01 solenoid pilot valve)

• Coil Voltage Options: 24V DC (D24), 100V AC (A100), 220V AC (A220) standard configurations

• Pilot & Drain Configurations: Convertibility between internal/external pilot (C/C2) and internal/external drain (T/ET) modes

• Net Weight: DSHG-04: approx. 11.0 kg; DSHG-06: approx. 14.5 kg; DSHG-10: approx. 43.0 kg

Key Technical Advantages

• 100% Direct Drop-in Interchangeability: Mounting surface dimensions, port centers, and bolt patterns strictly mirror OEM Yuken specifications. Field technicians can perform seamless replacements without subplate alterations or piping redesigns, drastically reducing operational downtime.

• Heavy-Duty Cast Body & Precision Honing: Cast from high-grade resin-sand ductile iron, the valve housing offers exceptional tensile strength and pressure-impulse resistance. The main spool and body bore are compound-honed to micron-level clearances, suppressing internal leakage and maximizing volumetric efficiency under full 315 bar loads.

• Versatile Pilot Circuitry & Quiet Operation: Equipped with a wet-pin solenoid pilot valve where the armature runs submerged in fluid, suppressing switching shocks and noise. Internal conversion plugs allow field technicians to easily alter pilot supply and drain configurations.

• 100% Full-Condition Simulation Testing: Every valve undergoes rigorous automated bench testing before dispatch. Operational pressure (315 bar), maximum flow, and high-frequency switching cycles are fully validated to guarantee zero infant mortality and leak-free performance.

Application Areas

• Main hydraulic control circuits in metallurgical rolling mills, continuous casters, and heavy shears

• High-tonnage hydraulic forging presses, stamping machinery, and injection molding equipment

• Marine deck machinery, tunnel boring machines (TBM), and subsea hydraulic power units

• Mining crushers, heavy container handlers, and specialized earthmoving machinery

Expert Maintenance Tips

• Verify Pilot Pressure: In open-center systems without neutral backpressure, ensure the minimum pilot inlet pressure is maintained at or above 10 bar (or install a pre-pressure valve upstream of Port P) to ensure full main spool travel under high pressure.

• Fluid Cleanliness & Flatness Check: Maintain hydraulic fluid cleanliness to ISO 4406 class 19/17/14 (NAS class 8) or cleaner. Before mounting, verify subplate flatness is within 0.01/100 mm and torque bolts diagonally in stages to prevent valve body distortion and main spool binding.