Design and Structure

Valve Body: The valve body is made of high-quality, durable materials, typically a special alloy that offers excellent resistance to corrosion and high pressure. This ensures the valve can withstand the harsh operating conditions and high hydraulic pressures in the concrete pump truck's hydraulic system, guaranteeing long-term reliability and stability.

Electromagnetic Actuator: Equipped with a powerful electromagnetic actuator, this valve can quickly and accurately control the movement of the spool. The actuator is designed to have a high response speed and strong magnetic force, enabling it to convert electrical signals into precise mechanical movements. It also has good heat dissipation and electromagnetic shielding properties to prevent interference and ensure stable operation in various electromagnetic environments.

Sealing Elements: High-performance sealing elements made of advanced rubber and polymer materials are used in the valve. These seals effectively prevent hydraulic fluid leakage under high pressure and frequent operation, maintaining the efficiency and performance of the valve. They have excellent resistance to wear, aging, and the chemical effects of the hydraulic fluid, prolonging the service life of the valve.

Working Principle

Electromagnetic Control: When an electrical signal is applied to the electromagnetic coil of the actuator, a magnetic field is generated. This magnetic field attracts the armature connected to the spool, causing the spool to move within the valve body. By controlling the magnitude and duration of the electrical signal, the position of the spool can be precisely adjusted, thereby controlling the flow direction and rate of the hydraulic fluid.

Flow Control: In the case of the P-type spool, the valve has specific flow characteristics. The spool can connect and disconnect different ports in the valve body according to its position, allowing the hydraulic fluid to flow in different directions and at different rates. This enables the precise control of various hydraulic components in the concrete pump truck, such as the boom cylinders, piston pumps, and chute mechanisms, ensuring the accurate operation and movement of the pump truck.

Performance Features

High Pressure Resistance: The SDHE-0718 10S (P type) is designed to handle high hydraulic pressures that are common 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 offers excellent flow control accuracy. It can precisely adjust the flow rate and direction of the hydraulic fluid, ensuring the smooth and accurate operation of the pump truck's hydraulic components. This is crucial for the precise positioning and movement of the boom, chute, and other parts, enabling efficient and accurate concrete pouring.

Fast Response: The valve has 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, improving the overall operational efficiency and productivity.

Low Leakage: Thanks to its reliable sealing system, the SDHE-0718 10S (P type) has a very low leakage rate. This helps to maintain the efficiency of the hydraulic system by minimizing energy loss due to leakage and ensuring that the hydraulic power is effectively transmitted to the actuators, thereby improving the overall energy efficiency of the pump truck.