In terms of action mode, the gate valve is a straight travel valve, that is, the valve stem drives the valve plate to make vertical movement up and down to complete the opening and closing of the gate valve, so the flow resistance of the gate valve is small. However, because of its high opening height, the opening and closing speed is slow. The pneumatic butterfly valve is an angle travel valve, that is, the valve plate of the butterfly valve rotates 90 ° around the valve axis to complete the opening and closing of the butterfly valve. Therefore, the opening height of the butterfly valve is only one fourth of the channel diameter, so it can be opened and closed quickly. According to the function and purpose of the gate valve and butterfly valve, the gate valve has small flow resistance and good sealing performance. Because the gate valve plate and the medium flow direction are vertical angles, if the gate valve is not in place on the valve plate, the flushing of the medium on the valve plate will make the valve plate vibrate, which is very easy to damage the seal of the gate valve.

Opening and closing speed regulation of pneumatic butterfly valve
There are many ways to adjust the opening and closing speed of the pneumatic butterfly valve. First, the quick exhaust valve can make the pneumatic butterfly valve open and close more quickly. On the contrary, if the pipeline is equipped with a quick exhaust valve, the opening and closing speed will slow down. The opening and closing speed of pneumatic butterfly valve can also be adjusted by adjusting the air source pressure. A positioner is added to regulate the flow in the pipeline. Adjusting the flow of the pipeline changes the impact on the pipeline and can also regulate the opening and closing speed of the pneumatic butterfly valve.