Parker Type D31FC D41FC D91FC Valve | D31FCE01DC4NB70 | Pilot Proportional Valve | OBE

Parker Type D*1FC Series Pilot-Operated High-Response Digital Proportional Valves

Product Overview: The D*1FC Series represents the pinnacle of industrial hydraulic technology in pilot-operated proportional directional valves. Integrated with advanced On-Board Electronics (OBE), this series is specifically designed for complex applications requiring exceptional dynamic response, massive flow capacities, and precision closed-loop control. With its internal position feedback system, the D*1FC achieves minimal hysteresis and superior linearity, making it a critical control unit for modern Industry 4.0 automation.

This category highlights the core configuration D31FCE01DC4NB7019 (NG10) alongside the high-flow D41FC (NG16), D91FC (NG25), and D111FC (NG32) models. These valves are the premier choice for die-casting machines, heavy-duty presses, injection molding equipment, steel mill automation, and large-scale open or closed-loop hydraulic circuits.

Key Technical Advantages:

• Full Digital Electronics (OBE): The integrated digital amplifier allows for parameter configuration via an RS232 interface, providing superior noise immunity and diagnostic capabilities compared to analog circuits.

• Exceptional Dynamic Response: Optimized pilot stages ensure rapid step-response times even at maximum flow rates, enhancing the synchronization precision of actuators.

• High-Precision LVDT Feedback: The main spool is equipped with an inductive transducer for real-time position correction, ensuring highly linear flow output relative to the command signal.

• Rugged Industrial Engineering: Constructed with high-strength materials and featuring the optimized 70 design sequence, supporting operating pressures up to 350 Bar.

Detailed Specifications & Parameters:

• Core Series: Parker Type D*1FC Proportional Valve.

• Featured Model Matrix: D31FCE01DC4NB7019, D41FC, D91FC, D111FC.

• Core Performance Specs:

  • Nominal Sizes: NG10 (Size 10) up to NG32 (Size 32).

  • Max Operating Pressure: Rated up to 350 Bar (5,076 PSI).

  • Electrical Interface: 6+PE standard connector, supporting ±10V or 4-20mA command signals.

  • Control Precision: Ultra-low hysteresis (<0.1%) and high repeatability.

  • Seal Type: N (NBR/Buna-N) standard configuration.