Daily maintenance of ball valves

How to maintain the ball valve in daily life? I think everyone is not very clear, so now we will talk about the maintenance of the ball valve. If we want to extend the service life of the ball valve, we must do regular maintenance and care. So what should we do specifically? The first thing we have to do is to clean the sealing system of the valve seat, refill the sealing system of the valve seat, clean the valve cavity, adjust the valve limit according to the requirements, and switch the valve many times to ensure safe operation of the valve. Valve 3 times, lubricate the valve stem, gearbox and all equipment that needs to be lubricated, test valve seat seal leakage, check valve accessories, flange grease port and valve stem leakage, check whether the actuator is working normally (including vapor and liquid Linkage actuators, electric actuators, pneumatic actuators and other actuators), when inspecting the RTU valve chamber, focus on checking the gas-liquid linkage actuators and related supporting systems. Finally, deal with and repair the problems existing in the inspection.