Solenoid valve appears plugging phenomenon how to deal with

Solenoid valve in use may appear stuck plugging phenomenon, for this phenomenon is more common, we first have to find the reason and then can accurately deal with, below we say the solenoid valve blockage phenomenon how to deal with it?
1. The main reason is that the impurities in the pipeline enter the solenoid valve during the discharge of the medium, leading to the spool being stuck or when the friction resistance is greater than the spring recovery force, so that it can not be closed or can not be opened.
2. Check the impurities in the medium, whether the old pipeline will leak iron filings, and install the filter in time.
3. clean in time, when cleaning should pay attention not to leave residue, otherwise residue will enter the solenoid valve in the process of exhaust leading to blockage.
4. Check whether the seal is worn. If damaged, replace the seal with a new one.
5. To isolate the solenoid valve when it is faulty and ensure the normal running of the system, install manual valves and bypass devices.