The performance index of solenoid valve is the key to measure its advantages and disadvantages. Flow coefficient is one of the important indicators, it characterizes the flow capacity of the solenoid valve under a specific pressure difference, the greater the flow coefficient, the greater the fluid flow through the same conditions, such as in a large water supply system, it is necessary to choose a solenoid valve with a larger flow coefficient to meet the large water demand. The pressure range determines the working pressure range for which the solenoid valve can be applied, beyond which the solenoid valve may not work normally or even be damaged, such as the solenoid valve in the high-pressure hydraulic system must be able to withstand higher pressure. Response time reflects the speed of the solenoid valve action, the shorter the time from the power to the full action of the spool, the faster the response to the control signal, in the high-frequency fast switching automatic production line, the solenoid valve is required to have a very short response time. Sealing is related to the leakage of the solenoid valve, a good seal can prevent fluid leakage, which is particularly important for the control of toxic and harmful or expensive media, such as in semiconductor manufacturing, high-sealing solenoid valves can avoid chemical reagent leakage affecting product quality. In addition, there are durability indicators, that is, the number of cycles that the solenoid valve can work normally under specified conditions, high durability means that the solenoid valve has a long service life, which can reduce equipment maintenance costs and downtime.
