Electro-hydraulic Proportional Directional Control Valve

2 month ago

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4 year

Product details

I. Product Overview

• Brand & Model: Produced by Bosch Rexroth, the4WRZE32-7X series electro-hydraulic proportional directional control valveintegrates directional and proportional control functions.

• Function: It precisely controls the flow rate and direction of hydraulic systems based on the magnitude and direction of input electrical signals, enabling accurate motion control of actuators (e.g., hydraulic cylinders, motors).

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II. Technical Features

1. Proportional Control:

• Utilizes proportional solenoids to convert electrical signals into mechanical displacement, adjusting the valve spool position proportionally.

• Flow rate correlates directly with the input electrical signal for precise control.

2. Directional Control:

• The valve spool has multiple operating positions to regulate hydraulic oil flow direction, enabling forward/reverse movement or stopping of actuators.

• Flexible directional adjustments via spool positioning.

3. High Precision & Responsiveness:

• Advanced proportional technology ensures high-accuracy flow control.

• Rapid spool movement and short response times meet dynamic operational demands.

4. Compact Design & Easy Installation:

• Space-saving valve body simplifies integration into hydraulic systems.

• Multiple mounting interfaces and connection options for seamless integration with pipelines and components.

5. Reliability & Durability:

• Built with high-quality materials and manufacturing processes for long-term stability.

• Rigorous testing ensures reliable performance in harsh environments.

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III. Applications

• Construction Machinery: Excavators, loaders, road rollers (controls working device speed/direction).

• Industrial Automation: Injection molding machines, die-casting machines, machine tools (precise motion/positioning control).

• Other Hydraulic Systems: Marine, aerospace, metallurgy (proportional and directional control requirements).

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IV. Example Model Specification

• 4WRZE32W8-520-7X/6EG24NIETK31F1/D3M+Z31:

• A specific variant in the 4WRZE32-7X series with tailored flow, pressure, and control parameters.

• May include integrated amplifiers, displacement sensors, or other features for enhanced precision and monitoring.

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V. Selection & Usage Guidelines

1. Model Selection:

• Match valve specifications (flow, pressure, temperature) to system requirements.

• Verify compatibility with mounting styles, connections, and electrical interfaces.

2. Installation & Commissioning:

• Follow the product manual for proper installation, ensuring secure component mounting and sealing.

• Adjust input electrical signals to proportional solenoids during commissioning to achieve desired flow/direction outputs.

3. Maintenance:

• Regularly inspect sealing performance, spool flexibility, and electrical connections.

• Replace worn parts/seals promptly to maintain long-term reliability.

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