Electromagnetic valve leakage phenomenon Electromagnetic valve with its simple structure, rapid response, high reliability advantages, in many industries also have more and more examples of use, the quality and stability of electromagnetic valve requirements for higher and higher, our company in a new product test. With the increase in the number of pressure tests and the simulation of customers 'possible error operations, the electromagnetic Valve has a leakage phenomenon, lost the adjustment of the media, and then our company immediately launched a research and investigation on this phenomenon; From the analysis of the structure and working principle of the solenoid valve, it is found that there are two main reasons for the leakage of air: 1. The leakage at the seal, and the uneven coating at the 2. thread connection. In the follow-up test, it was found that there was no leakage at the seal, and it was found that there was a non-uniformity at the glue, and there was a slight foreign body affecting the glue, and there was an uneven appearance. Then my company immediately cleaned the screw and verified the glue, found that the test was OK, and followed by the standard staff operation. And join SOP.