EMG Servo Valve SV1 SV2 Series | High-Performance Hydraulic Valve Replacement

Genlu Hydraulic proudly introduces our precision-engineered EMG SV1 & SV2 Series high-performance servo valves, the critical feedback components for closed-loop control in metallurgy, forging, and high-precision positioning systems. This series serves as a precise match for EMG technical standards, comprehensively covering core specifications including SV1-10, SV1-16, and SV2-20, and fully supporting complex engineering codes such as SV1-10/48/350/6/D and SV1-16/4/50/6/D. Genlu unequivocally guarantees 100% Drop-in Interchangeability in mounting interfaces, flange connections, electrical input signal configurations, and flow output characteristics. Backed by our uncompromising 100% Simulation Load Testing, each servo valve is validated for frequency response characteristics, null-bias accuracy, and high-pressure dynamic durability before dispatch, ensuring superior dynamic response and control precision in demanding industrial closed-loop circuits.

Technical Specifications

• Product Series: EMG SV1 / SV2 Series Hydraulic Servo Valve

• Representative Models: SV1-10, SV1-16, SV2-20 (including custom specs like SV1-10/48/350/6/D)

• Rated Operating Pressure: 350 bar (5075 psi)

• Flow Rating: Configurable based on model (e.g., 4L/min, 48L/min)

• Input Signal: Standard current or voltage command (per electrical parameters)

• Mounting Interface: EMG standard sub-plate mounting

• Dynamic Response: High bandwidth characteristics for precise position/velocity control

• Spool Structure: Precision nozzle-flapper or spool-type (model-dependent)

Key Technical Advantages:

• Ultra-High Frequency Response: Featuring lightweight torque motors and optimized nozzle-flapper geometry, we have dramatically reduced inertial mass. This allows the valves to provide minimal phase lag in high-frequency closed-loop systems, ensuring extremely sensitive operation.

• Nano-Precision Lapping Process: Spool and sleeve interfaces are precision-lapped at the nano-scale, achieving exceptionally low static friction and high-linearity flow output. This ensures smooth switching and superior positioning accuracy, even with micro-input signals.

• High-Pressure Dynamic Stability: Internal geometry is optimized for high resistance to pressure pulsations and flow disturbances, maintaining output stability and repeatability under extreme high-pressure environments (up to 350 bar).

• Industrial-Grade Environmental Adaptability: Valve housings feature anti-corrosive plating, and coil potting compounds provide excellent vibration and heat resistance, ensuring long-term stable operation in high-temperature, humid, and EMI-heavy metallurgical environments.

Application Areas:

• Metallurgy: Mold oscillation control for continuous casting machines and Automatic Gauge Control (AGC) for strip mills.

• Forging Machinery: Precision position synchronization for rapid forging presses.

• Industrial Test Rigs: High-frequency hydraulic vibration test platforms and load simulation systems.

• Heavy Equipment: Marine steering gear systems and position-control loops for large heavy-duty machinery.

Expert Maintenance Tips:

• Fluid Cleanliness Standard: Servo valves are high-precision components extremely sensitive to contamination. Maintain system fluid cleanliness at ISO 4406 16/14/11 or better; the installation of a 3μm pressure-line filter is strongly recommended.

• Periodic Null-Bias Calibration: If control drift is detected, perform a null-bias offset compensation check via the Electronic Control Unit first. Never adjust the mechanical null-setting screws on the servo valve without authorized guidance.

• Case Drain Line Integrity: The drain port must be routed directly to the reservoir with an unrestricted diameter. Ensure backpressure remains below 2 bar; excessive backpressure will severely shift the control characteristics of the servo valve.

Related Models：

SV2-10/64/210/6
SV1-10/8/120/1
SV1-10/8/315/1
SV1-10/48/315/6
SV1-10/16/100/6
SV1/10/16/120/6