TDA Series Solenoid Proportional Throttle Valve | TDA040 TDA032 Proportional Valve Replacement

Genlu Hydraulic proudly introduces our TDA Series high-performance solenoid proportional throttle valves. Engineered for industrial hydraulic systems requiring precise flow and pressure modulation, this series enables stepless, smooth speed adjustment via electrical input. Our range covers full specifications from TDA016 to TDA100, ensuring perfect compatibility with complex models such as TDA040EW09B2VXW21 and TDA032EW09A2NXW21. Genlu unequivocally guarantees 100% Drop-in Interchangeability in mounting, spool characteristics, electromagnetic feedback, and pressure compensation accuracy relative to industry benchmarks. Backed by our uncompromising 100% Simulation Load Testing, each unit is validated for step response, hysteresis calibration, and linearity before dispatch, ensuring superior control precision and transient response for your critical automation logic.

Technical Specifications 

• Product Series: TDA Series Solenoid Proportional Throttle Valve

• Sizes: TDA016 – TDA100

• Representative Models: TDA040EW09B2VXW21, TDA032EW09A2NXW21

• Control Method: PWM-based proportional current drive

• Rated Operating Pressure: 31.5 MPa

• Flow Characteristics: Linear/Equal percentage flow adjustment

• Feedback Type: Built-in displacement transducer or open-loop proportional control

• Working Fluid: ISO VG 32-46 mineral hydraulic oil

Key Technical Advantages:

• Superior Steady-State Linearity: High-performance proportional solenoids and optimized spool geometry maintain a strictly linear relationship between input current and flow output, meeting the most demanding precision requirements.

• Rapid Transient Response: Advanced magnetic circuit design lowers inductance, while precision-machined spool-to-bore pairing ensures lightning-fast response times, significantly shortening regulation cycles in closed-loop systems.

• Minimal Hysteresis: Utilizes wear-resistant materials and specialized surface treatments to minimize mechanical friction. This ensures negligible lag during directional switching, enhancing overall system stability.

• High-Pressure Contamination Resistance: Built to withstand industrial environments, the internal architecture provides high tolerance to fine particulates. Robust sealing ensures long-term operation under high pressure with zero internal leakage.

Application Areas:

• Injection Molding Machines: Precision shot speed control and packing pressure regulation.

• Machine Tool Feed Systems: Proportional control for spindle feed and worktable displacement.

• Industrial Presses: Closed-loop speed and position regulation for forging press slides.

• Testing Equipment: Precise flow control for hydraulic load simulation test benches.

Expert Maintenance Tips:

• Fluid Cleanliness Management: As high-precision components, proportional valves are highly sensitive to contamination. We strongly recommend a 5μm online filter to maintain fluid cleanliness at ISO 4406 17/15/12 and consistent oil analysis.

• Electrical Signal Isolation: Properly isolate power ground from signal ground in your proportional controller (amplifier) to prevent EMI (electromagnetic interference), which can cause valve chatter or control instability.

• Zero-Point Calibration: Whenever installing a new valve, perform a re-calibration of the system zero-point. This ensures the controller’s zero-signal output perfectly aligns with the valve’s closed position, preventing unintended flow drift.