The superimposed relief valve is a hydraulic control element that combines the overflow function with a modular design. It simplifies the system structure and improves integration through superimposed installation. It is widely used in hydraulic systems that require precise pressure control and high reliability. The following are its core application scope and industry segments: 1. Core application areas 1. Industrial hydraulic equipment injection molding machine: Application scenario: Control the pressure of the hydraulic system to prevent the mold from being damaged due to excessive pressure, and at the same time stabilize the pressure output in the injection, pressure holding, cooling and other stages. Advantages: The superimposed design saves installation space, quickly responds to pressure changes (response time < 50ms), and adapts to high-frequency pressure switching needs. Die casting machine: Application scenario: When metal liquid is injected into the mold, the mold clamping force is maintained through the overflow valve to avoid flashing or mold cracking. Advantages: High-precision pressure regulation (±1%FS), supports multi-stage pressure control (such as fast pressure, slow pressure, and boosting stages). Hydraulic press: Application scenario: In-forging

The superimposed hydraulic control check valve is a hydraulic component that combines the function of the hydraulic control check valve with the superimposed installation structure. It has the characteristics of compact installation, high integration, small leakage, and fast response. It is widely used in hydraulic systems that require one-way locking, bidirectional flow control or pressure holding. The following is a detailed introduction to its core application scope and typical scenarios: 1. Core application areas 1. Accurate positioning and locking application scenarios of hydraulic cylinders: In vertical or horizontal hydraulic cylinder systems, it is necessary to prevent the load from accidentally moving due to self-weight or external force (such as machine tool workbench, injection molding machine template, lifting platform, etc.). Working principle: When the hydraulic cylinder stops moving, the superimposed hydraulic control check valve is closed, the oil circuit is cut off, and the hydraulic cylinder is locked in the current position to achieve zero leakage pressure maintenance. When reverse movement is required, pressure oil is introduced through the control port to open the valve core, allowing the hydraulic oil to flow in both directions. Advantages: Compared with the combination of ordinary one-way valve + reversing valve, the superimposed design reduces leakage points and locks

Double-head electromagnetic reversing valve is a key component that controls the flow direction switching of fluid (liquid or gas) through electromagnetic force, and is widely used in industrial automation, hydraulic/pneumatic systems and special fluid control fields. Its core advantage lies in the independent control of dual electromagnetic heads, which can achieve more flexible fluid path switching and logic control. The following is a detailed analysis of its scope of application: 1. Application scenarios for the control of production line equipment in the field of industrial automation: automated assembly lines, packaging machinery, conveyor belt systems, etc. Function: Control the expansion and contraction of the cylinder or hydraulic cylinder by dual electromagnetic heads to achieve the gripping, positioning, sorting and other operations of workpieces. Advantages: Fast response speed (millisecond level), it can replace traditional mechanical reversing valves, reduce mechanical wear and improve system reliability. Case: On the automotive assembly line, the double-head solenoid reversing valve controls the clamping and loosening of the pneumatic clamp to ensure assembly accuracy. Robot joint drive application scenarios: hydraulics of industrial robots and collaborative robots

Single-head electromagnetic reversing valve is an automation component that controls the flow direction of fluids (such as gases, liquids) through electromagnetic force, and is widely used in industrial automation, hydraulic/pneumatic systems, mechanical equipment and other fields. Its core advantage lies in its compact structure, accurate control and quick response. The following is a detailed analysis of its advantages: 1. Compact structure, flexible installation, miniaturization design, single-head electromagnetic reversing valves usually adopt an integrated structure, integrating the solenoid coil, valve body and seal into a single module, small in size and light in weight, suitable for space-constrained occasions (such as machine tools and robot joints). For example, in a compact hydraulic system, a single head valve can replace multiple traditional valves, reducing pipeline connections and reducing leakage risk. The diverse installation methods support a variety of installation interfaces such as plate, tube, flange, etc., which can be installed vertically or horizontally to meet the needs of different equipment layouts. Some models are equipped with quick connectors, which can be installed or replaced without tools, shortening equipment debugging time. two,

4WEH16 electro-hydraulic reversing valve is a high-performance directional control valve that combines electromagnetic control and hydraulic drive. It is widely used in hydraulic systems that require high-precision, rapid response and large flow control. Its core features include electromagnet drive, hydraulic pilot control, median functional diversity and high pressure/flow adaptability. The following is its specific application scope and analysis: 1. Core features and advantages Electromagnetic-hydraulic composite control generates electromagnetic force through the electromagnetic force, which drives the pilot valve core to move, and then the pilot hydraulic oil pushes the main valve core to redirect, realizing the function of low pressure control and low flow control and large flow. Advantages: fast response speed (millisecond level), high control accuracy, low energy consumption (the electromagnetic power only requires a few dozen watts). The diversity of median functions provides a variety of median functions (such as O-type, H-type, Y-type, etc.), and the system pressure holding, unloading or differential connection mode can be flexibly selected to meet different working conditions. High pressure/flow adaptability rated pressures are usually

The usage method of superimposed relief valve mainly involves installation, pressure adjustment and daily maintenance. The following is a detailed introduction: Installing superimposed relief valves is usually installed between the reversing valve and the bottom plate. Superimposed valves of the same diameter are superimposed in a certain order and connected in series with bolts. When installing, you need to pay attention to the damping holes on the oil circuit or main valve core. The pressure valve unit with the damping hole is the pressure valve unit, and the direction valve unit without the damping hole is the direction valve unit. Ensure the connection is correct. For example, during the installation process, it is necessary to ensure that the connection between the main oil circuit of the cone valve and the pilot valve and the control oil circuit is accurate to avoid the system from operating normally due to connection errors. Pressure adjustment and adjustment steps: When performing pressure adjustment, first loosen the lock nut and rotate the pressure adjustment screw clockwise, and the pressure will rise. After adjustment is completed, the lock nut must be tightened to prevent the pressure adjustment screw from loosening, resulting in unstable pressure. Note: The minimum adjustment pressure is equal to the characteristics of the minimum adjustment pressure