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Most people tend to take casual approaches to the maintenance of electric control valves; in order to keep these valves in good condition, it is important to pay attention to many small details during the maintenance process. I’ll explain it to you all below. The daily maintenance tasks for electric control valves are divided into routine inspections and periodic maintenance, with the contents of routine inspections as follows. Inquire with the on-duty process operator about the operation of the electric control valve, and check the power source supply for the electric control valve and its associated components (air supply, hydraulic oil, or electrical power). 3. Examine the operation of the hydraulic oil system, check for any leaks at the various static and dynamic sealing points of the electric control valve, and verify that the connection pipes and fittings are not loose or corroded. Check the electric control valve for any abnormal noises or excessive vibration. Examine the supply conditions and verify that the valve operates smoothly, changing in response to changes in control signals in a timely manner. Listen for any abnormal vibrations or noises coming from the valve core and seat; if any problems are detected, contact the relevant personnel for prompt handling. Keep records of the routine inspections and file them. The tasks for regular maintenance are as follows: Clean the exterior of the electric control valve on a regular basis; adjust the packing and other sealing components of the electric control valve, and replace these sealing components when necessary to maintain the integrity of the static and dynamic sealing points. Apply lubricant to the components that require it. Regularly clean and drain the air or hydraulic filtration systems. Periodically check the condition of all connections as well as any signs of corrosion, and replace the connecting parts when necessary.