The structural principle and core technological advantages of modular stacked valves

Stacked valve is an integrated hydraulic valve based on standardized interface design. It is an upgraded and iterated product of traditional split hydraulic valves, and also a core standard component of modern precision hydraulic systems and miniaturized hydraulic workstations. Different from traditional hydraulic valves that rely on external oil pipes and joint connections, stacked valves adopt a stacked modular structure, which does not require complex pipelines and can be directly stacked layer by layer to form a complete hydraulic control circuit, perfectly adapting to the development needs of modern industrial equipment miniaturization, high precision, and low leakage. This article provides a detailed analysis of the structural principles and differentiation technology advantages of stacked valves.

The stacked valve has a unified international standardized installation size, and the upper and lower ends of the valve body are designed with standard oil passage holes and fixing bolt holes. Each stacked valve is an independent functional unit, including pressure control, flow control, direction control, and other different categories. Its working principle is consistent with that of ordinary hydraulic valves, relying on the displacement of the valve core to adjust the pressure, flow rate, and direction of the oil circuit, but it has achieved a revolutionary upgrade in the structural connection method. When installing, simply stack the stacked valve plates with different functions layer by layer according to the control logic, match the bottom with a hydraulic bottom plate, and lock them as a whole with long bolts to form an integrated valve group without external pipelines. The oil circuit is completely connected inside the valve body, completely replacing the traditional external pipeline connection method.

Compared to traditional hydraulic valve groups, the core technological advantages of stacked valves are extremely prominent. Integration saves device space. Traditional valve group pipelines are complex, have numerous accessories, and occupy a large space. With a modular stacked structure of stacked valves, the volume can be reduced by 40% -60%. The structure is compact and orderly, perfectly adapting to space limited equipment such as machine tools, precision automation equipment, and compact hydraulic stations. Secondly, zero external leakage points result in stronger system stability. Traditional hydraulic systems have numerous joints and pipelines, which pose a high risk of leakage. All oil circuits are equipped with stacked valves, and there are no external pipeline leakage points, effectively preventing oil leakage problems from the root. The system maintains better pressure and has higher pressure accuracy. Thirdly, low pressure loss, energy-saving and efficiency enhancing. The built-in short oil circuit structure significantly reduces fluid resistance and local pressure loss along the way, resulting in lower system energy consumption, more stable oil temperature, and significant energy-saving effects during long-term operation.

In addition, the overlay valve has strong compatibility and universality. The diameter and installation dimensions of all products in the series are standardized, and different functional valve plates can be freely combined and replaced. They can be adjusted according to equipment process upgrades and working conditions, and control functions can be flexibly added or removed without changing the equipment oil circuit structure. Whether it is adding speed regulation, voltage stabilization, one-way locking functions, or modifying equipment control logic, it can be quickly achieved by replacing stacked valve plates to adapt to the iterative upgrading needs of equipment.

With multiple advantages in structure, performance, and adaptability, stacked valves have become the mainstream choice for hydraulic equipment, gradually replacing traditional pipeline valve groups and widely used in fields such as CNC lathes, automated assembly lines, precision injection molding equipment, and small hydraulic machinery.