If you want to use the pneumatic butterfly valve as a flow control valve, you need to correctly select the size and type of the valve. Generally speaking, the pneumatic butterfly valve is suitable for use as a large diameter valve.

V-type regulating ball valve is generally set in limestone slurry inlet pipe and cyclone return pipe of FGD project. Due to the high cost of pneumatic control valve, pneumatic V-type ceramic control ball valve is selected only at the limestone slurry inlet pipe in this phase of the project. The front end of the valve is equipped with an orifice plate, and the differential pressure signals from both ends of the orifice plate are introduced into the actuator of the control valve. The overflow and return pipeline of hydrocyclone adopts butterfly valve and throttle orifice plate for regulation.