Zoomlion Concrete Pump Truck Accessories Electro Hydraulic Directional Valve

Product Specification

Design and Structure

Valve Body: Made of high-strength and corrosion-resistant alloy materials, the valve body can withstand high pressure and harsh working conditions. It provides a solid foundation for the stable operation of the valve in the concrete pump truck's hydraulic system, which often operates under high pressure and complex environments.

Electro-hydraulic Actuator: It combines an electromagnetic part and a hydraulic pilot part. The electromagnetic part has a high-performance coil with fast response and strong magnetic force. The hydraulic pilot part uses hydraulic pressure to assist in driving the spool, improving the driving force and control accuracy.

Sealing System: The valve is equipped with an advanced sealing system using high-quality sealing materials. These seals can effectively prevent hydraulic oil leakage under high pressure and frequent operation, ensuring the valve's performance and efficiency. They have excellent resistance to wear, aging, and the chemical effects of hydraulic oil, extending the valve's service life.

Working Principle

Electromagnetic Control: When an electrical signal is sent to the electromagnetic coil, a magnetic field is generated, which attracts the armature. This action controls the pilot hydraulic valve, allowing hydraulic oil to enter the pilot chamber of the main valve.

Hydraulic Drive: The pressure difference generated by the hydraulic oil in the pilot chamber drives the spool of the main valve to move. By precisely controlling the magnitude and duration of the electrical signal, the position of the spool can be accurately adjusted, thereby controlling the flow direction and rate of the hydraulic fluid in the main circuit.

Flow Control: The 8C spool in the DG3V-10-8C-11 valve has specific flow characteristics. According to the spool's position, it can connect and disconnect different ports in the valve body, enabling the hydraulic fluid to flow in different directions and at different rates. This enables precise control of various hydraulic components in the concrete pump truck.

Performance Features

High Pressure Resistance: The DG3V-10-8C-11 is designed to withstand high hydraulic pressures in the operation of concrete pump trucks. It can operate stably under the high-pressure conditions required for concrete pumping, providing reliable power support for the hydraulic system.

Precise Flow Regulation: With its advanced design and high manufacturing precision, this valve can accurately adjust the flow rate and direction of the hydraulic fluid. It ensures the smooth and precise operation of the pump truck's hydraulic components, which is crucial for the accurate positioning and movement of the boom and other parts.

Fast Response: The electro-hydraulic control mode enables the valve to have a short response time, allowing for quick changes in the flow direction and rate of the hydraulic fluid. This rapid response is essential for the efficient operation of the concrete pump truck, enabling it to quickly adapt to different working conditions and operator commands.

High Reliability: The combination of electro-hydraulic control and high-quality components makes the valve highly reliable. It can operate stably for a long time in harsh working environments, reducing the frequency of maintenance and replacement and improving the overall efficiency of the concrete pump truck.