CFP series pneumatic pinch valve is a lever extrusion, cylinder driven, position adjustable pinch valve. It is characterized by adding a cylinder positioner device on the basis of the classic CF series pinch valve, controlling the air path of the positioner through electrical signals, thus controlling the piston position of the cylinder, and realizing the manual control of the opening size of the liner in the pinch valve. It is suitable for applications that require valve opening control but are not suitable for electric control.