Atos S6VH Series Proportional Valve | S6VH10G S6VH10G02 | Solenoid Reversing Valve

The S6VH Series proportional solenoid reversing valves by Chengyuan Hydraulic are high-precision control components engineered for full compatibility with Atos industrial standards. This series features the core model S6VH10G02 and specific variants like S6VH10G02000160V (Size 10). Unlike standard on/off valves, the S6VH series utilizes proportional solenoids to continuously adjust spool displacement, providing stepless control over speed, direction, and pressure. The valve body is manufactured using specialized high-performance casting, with internal galleries optimized via fluid dynamics simulation to ensure minimal pressure drop even at high flow rates. All proportional valves offer 100% original-place interchangeability and undergo 100% simulated condition and hysteresis testing to guarantee that control precision and linearity match OEM specifications perfectly.

Technical Specifications :

• Core Models: S6VH10G, S6VH10G02, S6VH10G02000160V

• Nominal Size: NG10 / CETOP 05

• Max Operating Pressure: $31.5\text{–}35\text{ MPa (315–350 bar / 5075 psi)}$

• Rated Flow: Up to $160\text{ L/min}$ (depending on $\Delta p$)

• Control Signals: $\pm 10\text{ V DC}$ or $4\text{–}20\text{ mA}$ (via external or integrated drivers)

• Hysteresis: $\le 1\%$ (with closed-loop amplifier)

• Repeatability: $\le 0.5\%$

• Protection Class: IP65/IP67

• Solenoid Resistance: Standard proportional coils ($3.7\text{ }\Omega$ or $13\text{ }\Omega$)

Key Technical Advantages:

• High Proportional Linearity: The spool and bore are precision-matched, resulting in a flow characteristic curve with exceptional linearity. Combined with Chengyuan’s optimized PWM drive algorithms, this enables ultra-smooth velocity transitions and eliminates hydraulic shocks during actuator starts and stops.

• Dual Proportional Solenoid Configuration: The dual-coil design allows for precise control over the spool’s neutral position and full-stroke travel. The oil-immersed armature ensures lubrication and dynamic response frequencies superior to standard models, supporting complex Ramp Control functions.

• Zero-Lap Spool Processing: For high-precision machine tool applications, zero-lap spool options are available. This ensures near-instantaneous response as the control signal crosses the neutral point, drastically improving positioning accuracy during micro-adjustment tasks.

• Reinforced Cast Iron Body: Constructed from high-strength gray or ductile iron using resin-sand precision casting. The wall thickness is scientifically calculated to ensure zero internal elastic deformation at 35MPa, preventing spool sticking caused by housing distortion.

Application Areas:

• High-End Machine Tools: Feed rate regulation for grinders/millers and hydraulic axis positioning.

• Plastic Machinery: Multi-stage proportional injection speed control and mold-lock pressure linear adjustment.

• Metalworking Equipment: Pressure compensation and flow synchronization in CNC press brakes and stamping machines.

Expert Maintenance Tips:

• Amplifier Compatibility: Proportional valves must be paired with compatible amplifiers (E-MI-AC or E-BM-AC series). Ensure the Offset and Gain settings are calibrated to the optimal work conditions.

• Extreme Oil Cleanliness: Proportional valves are highly sensitive to particulates. The system must be equipped with pressure line filters rated at $5\mu\text{m}$ or better, maintaining oil cleanliness at ISO 16/14/11.

• Electronic Zero Calibration: Periodically perform electronic zero calibration via the amplifier to compensate for minor zero-point shifts caused by long-term mechanical wear or temperature fluctuations.