Then we need to pay attention to the following points during the repair of electric ball valve.
1. When the electric ball valve is closed, there is still pressurized fluid inside its valve body. 　　
2. Before the repair of the ball valve, it is necessary to relieve the pressure of its pipeline and ensure that it is in the open state. For the electric ball valve, it is necessary to disconnect its power supply, while for the pneumatic ball valve, it is necessary to disconnect its air supply in advance, and together with the actuator, it is necessary to separate it from its support. 　　
3. For safety and other reasons, it must be recognized that the upstream and downstream pipeline pressure of the electric ball valve has been removed before the disassembly of the electric ball valve. 　　
4. In the process of repair, it is also required to use smooth grease to smooth it. Generally, the grease should be compatible with the metal materials, rubber parts, plastic parts and operating media of the ball valve. For example, when the working medium is certain gas, we can choose Te 221 smooth grease.

Electric ball valves are industrial control equipment, so the kinetic energy generated inside them is very large, which will cause great loss to the equipment itself. If they are used for a long time, they are likely to cause control risks due to the internal loss of equipment if not tested, which will also have a great impact on industrial control. Therefore, attention should be paid to the safety and stability of these electric ball valves, Check the existence of fault and reduce the equipment fault of electric ball valve.