PARKER Proportional Valve in Stock

PARKER Proportional Valve in StockD31FCE02DC1NB70

The Parker Proportional Valve D31FCE02DC1NB70 is a high-performance pilot operated electro-hydraulic proportional directional control valve widely used in industrial scenarios that require high precision and response speed of hydraulic systems. This valve integrates * * electronic control technology and high reliability mechanical design, enabling precise adjustment of flow, pressure, and direction, and is suitable for dynamic control requirements under various complex working conditions.

1、 Core functions and technical features

1. High precision control and position feedback
   D31FCE02DC1NB70 is equipped with a high-definition valve core position feedback system, which supports real-time monitoring of the main valve core displacement, ensuring the high repeatability and stability of the control process. Through Parker PropxD software, parameterized settings such as dead zone compensation, slope adjustment, and flow limit setting can be made to improve system debugging efficiency and control accuracy.

2. Electro hydraulic proportional drive, fast response
   The valve adopts electromagnetic proportional control technology, and the input of ± 10V DC signal can drive the valve core to move, achieving pressure and flow output proportional to the electrical signal. Its low hysteresis characteristics ensure stable performance even under frequent variable load conditions.

3. Integrated electronic controller and diagnostic function
   The valve mounted electronic module supports EtherCAT ® Interface, easy to access modern automation control systems. At the same time, it has diagnostic signal output functions such as temperature, operating time, and fault information, which helps with preventive maintenance and rapid troubleshooting.

4. Flexible control modes and energy-saving options
   Optional A-regenerative energy-saving circuit or hybrid version, supporting switching between standard mode and regenerative mode, optimizing energy consumption performance, suitable for application scenarios with high energy efficiency requirements.

2、 Typical application areas

• Industrial hydraulic equipment: used for high-speed approaching, low-speed pressing, and return control of hydraulic presses to ensure machining accuracy and smooth operation.

• Automated production line and robotic arm: achieve precise control of the position and speed of the actuator, and improve the automation level of the production line.

• Power generation industry: Used in auxiliary hydraulic systems for thermal power and hydropower units, such as turbine speed control mechanisms and valve opening and closing devices, to ensure fast response and stable operation of the units.

• Numerical Control Machine Tool: A hydraulic system that is compatible with machining centers, milling machines, grinders, and other equipment, controlling tool feed and worktable movement to improve machining quality.

• Rubber and tire manufacturing: used for pressure and mold control in tire vulcanizing machines and molding machines to ensure product molding consistency.

• Metallurgy and mining machinery: play a key role in dynamic position control and p/Q closed-loop systems, adapting to harsh working conditions.

• 1、 Typical application cases and actual benefits

• Full process action control in large hydraulic stamping equipment
  In the manufacturing of automotive parts, this valve serves as the main control component responsible for the fast forward, working in, pressure holding, and return actions of the actuator. Through the built-in electronic controller and valve core position feedback function, closed-loop control of flow and direction is achieved, meeting the requirements of pressure/flow dual loop and low hysteresis. In practical applications, the device's repeated positioning accuracy can reach ± 0.02mm, the product qualification rate is improved, the system energy consumption is reduced by 12%, and the maintenance cycle is extended to 8000 hours.

• Speed stability control of worktable drive for CNC gantry milling machine
  After connecting to the hydraulic circuit of the workbench, the incremental flow characteristics are utilized to achieve continuously adjustable feed speed, fast dynamic response, and adaptability to switching between open-loop and closed-loop modes. The A-oil circuit differential function can switch to energy-saving differential mode during rapid movement and to standard control mode during fine machining. After application, the speed fluctuation is ≤ 0.5%, the surface roughness Ra of the processed surface is reduced to below 0.8 μ m, and the system heating is reduced by 15%.

• Precision control of molds and pressure in tire vulcanization equipment
  Control the action of the locking cylinder and capsule telescopic cylinder, and cooperate with the center position monitoring and valve core position feedback to ensure the accuracy of mold clamping and stable setting pressure. Its ability to withstand environmental temperatures ranging from -20 ℃ to+60 ℃ is suitable for workshop conditions, achieving a 5% reduction in vulcanization cycle and significantly improving dimensional consistency.

• High reliability control of turbine speed regulation system for generator set
  In the auxiliary hydraulic system of thermal power plants, it is used for precise control of speed regulating mechanisms and valve opening and closing devices. With high dynamic response and anti-interference ability, it ensures operational stability under variable load conditions, improves speed response speed, reduces operational fluctuations, and enhances power supply reliability.

• Stable operation support of metallurgical equipment under harsh working conditions
  Faced with high temperature, dust and vibration environments, this valve has strong anti pollution ability and temperature resistance characteristics, which can achieve stable speed and position control of hydraulic actuators, ensuring the reliability of continuous production processes.

PARKER Proportional Valve in StockD31FCE02DC1NB70

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