Method for judging whether a solenoid valve is good or bad

First, the sensitivity and reliability of the action, which refers to the sensitivity of the solenoid valve to the corresponding changes in the media parameters. For solenoid valves, such as throttle valves, pressure reducing valves, regulating valves, etc., which are used to adjust the medium parameters, as well as solenoid valves with special functions such as safety valves and pigging valves, their functional sensitivity and reliability are important technical performance indicators. .

Second, it is the problem of medium circulation. The medium circulation is suitable for product pressure. Therefore, when designing the solenoid valve, the resistance of the solenoid valve to the medium should be reduced as much as possible.

Third, and the most important is the sealing of the solenoid valve. The tightness of a solenoid valve directly determines whether the solenoid valve will leak. Today's solenoid valve seals are mainly hard and soft seals. Have their own suitable medium.

Fourth, the opening and closing speed of the switch, the opening and closing speed is expressed by the time required for the solenoid valve to complete an opening or closing action. Generally, there is no strict requirement for the opening and closing speed of the solenoid valve, but some working conditions have special requirements for the opening and closing speed. If some requirements are quickly opened or closed, it is necessary to prevent accidents, and some require slow closing to prevent water hammer, etc. This should be considered when choosing the type of solenoid valve.