The electric butterfly valve should be carefully checked in daily inspection. Different inspection cycles should be established in the regular inspection. Efficient filters should be used to test the flow. The test equipment and instruments should be checked regularly, as well as the instrument components that need to be replaced. The electric butterfly valve should be subject to regular predictive maintenance, so that the system can be maintained before failure. This can reduce the loss to the company caused by valve damage during operation.

The main reason for the difference between power-off and power-off of pneumatic switch butterfly valve is the assembly of cylinder and valve body. As we all know, the cylinder has two states, one is the piston on both sides, and the other is two pistons in the middle. If the cylinder piston is set as open on both sides and closed on the middle, the butterfly valve also has two states: open and close. If the opening of each cylinder is the same as that of the butterfly valve, there will be no power on or power off opening. In short, the opening of the cylinder is misaligned with the closing of the butterfly valve. For the same pneumatic switch butterfly valve, if you want to change the air inlet, it is agreed that a similar situation will occur.