Keep the valve in a half-open position to flush and remove dangerous substances that may exist inside and outside the valve body. Close the ball valve, remove the connecting bolts and nuts on the flanges on both sides, and then completely remove the valve from the pipeline. Disassemble the drive device-the actuator, the connecting bracket, the lock washer, the stem nut, the butterfly shrapnel, the wear-resistant sheet, and the stem packing in order. Remove the body cover connecting bolts and nuts, separate the valve cover from the valve body, and remove the valve cover gasket. Make sure that the electric ball valve is in the "off" position, which can easily take it out of the valve body, and then take out the valve seat. Gently push the valve stem down from the hole in the valve body until it is completely taken out, and then take out the O-ring and the lower packing of the valve stem.
Note: Please operate carefully to avoid scratching the surface of the valve stem and the sealing part of the valve body stuffing box.
