3-Position Pneumatic Actuator

Torque: 12Nm -7500 Nm
Control: Double acting,Single acting
Annex: Solenoid valve, limit switch box,E/P positioner, hand wheel
Travel range: 0-45°-90°; 0-90°-180°
Valve type: ball valve, butterfly valve and other rotary valve






    Description

    Model preparation

    Working principle

    Operating Principle of DA Double Acting Type

    The air source pressure comes into the cylinder body between the two pistons from air entrance (2) and pushes the pistons toward the end of the cylinder body. The air between the pistons and the ends of the cylinder body is released from air entrance (4). Meanwhile the racks of pistons rotate the output shaft anticlockwise (gear wheel) simultaneously, whereas if the air source pressure comes into the ends of the cylinder body from air entrance (4) and pushes the pistons toward each other with the air between two pistons released from air entrance (2), the output shaft (gear wheel) would be driven by the racks of the pistons simultaneously to rotate clockwise. (if the pistons are assembled in different direction from each other, the output shaft would turn out to rotate in inverse direction, namely the double acting reverse DL type) pneumatic actuaotr pneumatic actuaotr
     

    Operating Principle Of SR Single Acting Type

    The air source pressure comes into the cylinder body between the two pistons from air entrance (2) and pushes the pistons toward the end of the cylinder body while the springs at each ends inside the cylinder body is forced to shrink with the air between the pistons and the ends of the cylinder body released from air entrance (4).in the meantime, the racks of pistons drive the output shaft (gear wheel) simultaneously to rotate anticlockwise. After the direction of the air source pressure is reversed by the solenoid valve, the springs at each end begin to reset and the pistons are forced toward each other by the elasticity with the air between two pistons released from air entrance (2). Meanwhile the output shaft (gear wheel) would be driven by the racks of the pistons simultaneously to rotate clockwise. (if the pistons are assembled in different direction from each other, the output shaft would turn out to rotate in inverse direction when the springs reset, namely the single acting reverse SO type) Operating Principle Of SC(SO) Single Acting Type Operating Principle Of SC(SO) Single Acting Type Operating Principle Of SC(SO) Single Acting Type