Double Acting Butterfly Valve

  The double-acting butterfly valve has two air chambers on the left and right. The pneumatic butterfly valve's air source signal pressure output by the double-acting position is input into the left and right air chambers of the actuator piston. Due to the difference in the pressure of the air source input to the air chambers on both sides, a pressure difference will be formed between the two air chambers, thereby pushing the piston to move linearly. Through gear and rack transmission, the linear motion of the piston is converted into the rotary motion of the main shaft of the actuator. When the left and right air chamber pressures are balanced, the motion stops. If it is necessary to adjust the flow rate, it is necessary to drive the valve stem and the valve core to rotate while the actuator is rotating, so as to change the flow area between the valve core and the valve seat to achieve the adjustment purpose

Product Parameters