Adjust the torque for cylinder opening and closing, choose a cylinder model that matches the butterfly valve's sealing pressure level, adjust the torque, adjust the limit switch, and adjust the electromagnetic valve for effective opening and closing at a certain rate.

Inspect the sealing condition of the valve disc and valve seat, adjust the torque for handle opening and closing, check the positioning gear, inspect the smoothness of handle operation, examine the smoothness of the valve stem's movement, and adjust the valve's opening and closing torque.

Inspect the sealing condition of the valve disc and valve seat, adjust the smoothness of the gearbox's opening and closing gear, adjust the torque size, check the positioning pin's location, inspect the location of the gear's open and close limit pin, adjust the smoothness of the valve stem's movement, and adjust the valve's opening and closing torque.