Is the design of the internal flow channel of the solenoid valve conducive to the smooth passage of fluid?

As one of the commonly used actuators in automatic control systems, the internal structure design of the solenoid valve is directly related to the efficiency and stability of the entire system. Among the various components of the solenoid valve, the design of the internal flow channel is particularly critical. It not only affects the speed and pressure loss of the fluid when it passes through, but also determines whether the flow is smooth and whether it is easy to generate noise and vibration.
In order to achieve smooth passage of the fluid, the internal flow channel of the solenoid valve often adopts a design that conforms to the principles of fluid mechanics. This design will minimize right-angle turns and sharp edges, so that the path of the medium from the inlet to the outlet remains continuous and smooth, reducing impact and turbulence. When the fluid passes through, if the internal surface of the channel is rough or the shape changes more suddenly, it is easy to cause turbulence and local pressure fluctuations, resulting in vibration, noise and even valve core jamming and other faults. Therefore, the solenoid valve with optimized structure usually smoothes the inner cavity to reduce friction resistance.
The types of fluids handled by the solenoid valve are diverse, which may be water, gas, oil or corrosive liquids, and the flow characteristics of different media are not the same. In order to be compatible with these different fluids, designers will make targeted adjustments in terms of flow channel size, diameter ratio, valve seat position, etc. By reasonably controlling the amplitude of the change in the flow channel section, the speed and pressure of the fluid passing through the valve are kept within a relatively balanced range, which helps to reduce the energy loss inside the system and improve the response efficiency of the entire control system.
Solenoid valves often need to be opened and closed frequently during actual operation. If the internal flow channel is not designed reasonably, it will not only easily cause the water hammer effect, but also cause the valve core to be unevenly stressed during the opening and closing process, thus affecting its service life. In order to cope with this situation, some solenoid valves adopt a segmented flow channel structure to make the fluid flow after diversion and then converge, thereby reducing the impact pressure caused by the flow rate change. This structure provides a more stable solution for systems that require frequent actions.
The flow channel design of the solenoid valve also needs to be closely matched with its sealing structure. If the sealing position is in a high pressure difference area or a sudden change point of flow rate, leakage or sealing fatigue problems are prone to occur. Therefore, when arranging the flow channel, the sealing area is often set in a relatively stable position to balance the pressure and prevent deformation or wear. This plays a positive role in extending the service life of the seal and reducing maintenance costs.
Precision machining capabilities in the manufacturing process are also an important factor affecting flow channel performance. Reasonable design also requires precise processing to truly realize the flow channel as shown on the drawing. Therefore, during the production process, manufacturers often use CNC machine tools or high-precision molds to ensure that the flow channel shape and dimensional errors of each batch of products are within a controllable range. Some solenoid valve products will also undergo fluid simulation tests or actual flow tests to evaluate their flow capacity and anti-interference ability under different working conditions.