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Principle of single/double acting actuator in pneumatic actuator


Release time:

2022-06-20

Today, Wuxi Xinming automatic control valve industry Co., Ltd. will introduce the principle of single/double acting actuator in pneumatic actuator for you: Pneumatic actuator introduction: Pneumatic actuator is a kind of control actuator driven by compressed air source. It is used in combination with various pneumatic accessories to complete the opening and closing of valves and adjustment. The composition and structure of the pneumatic valve can not be separated from the pneumatic cooperator. So it is necessary for us to talk about this pneumatic actuator. In the face of Huamen pneumatic actuator selection, you will encounter the requirement of actuator skill participation, single-acting actuator may act actuator. What is the difference between (single-acting, double-acting) pneumatic actuator? In fact, the difference between (single-acting, double-acting) pneumatic actuator is that the single-acting pneumatic actuator has a reset function, and the internal spring policy of the actuator can be reset actively after the gas source is broken. However, the double-acting pneumatic actuator can only be used as a gas on or off, and cannot be restored when the gas source is off. Next, let's understand the principle of (single-acting, double-acting) pneumatic actuators. single acting pneumatic actuator principle: The working principle of a single-acting pneumatic actuator is that when the compressed air enters through port A, the left and right pistons in the cylinder move in opposite directions, and the output shaft rolls counterclockwise at this moment. The compressed air beside the two pistons is discharged through B. When the pneumatic actuator loses the air source, because the function of the internal spring is to move the piston to the center, the output shaft rolls clockwise at this moment, and the air in the middle of the two pistons is discharged through port A. The actuator will drive the valve back to the initial set position under the tension of the spring. double acting pneumatic actuator principle: The working principle of the double-acting pneumatic actuator is that when the compressed air enters from port A, the left and right pistons move in opposite directions, and the output shaft rolls counterclockwise at this moment. The air on the side of the two pistons is discharged through the B port. When the air source is used to enter the B port to make the left and right pistons move to the center, the output shaft moves clockwise at this moment, and the air in the middle of the two pistons is discharged with A port. Because there is no tension spring for double action, the intelligence stops in the original position when the air source is faulty. Selection of single-acting and double-acting pneumatic actuators: The valve pneumatic actuator shall first admit the good mode of action plus in the selection of punishment. Single-action with elastic reset, double-action switch punishment, that is, the common normally open punishment (ventilation off, gas cut off), normally closed punishment (ventilation on, gas cut off). The second is the functional requirements, such as the requirements on the gas source trio. If you choose a single-acting pneumatic actuator, you don't need to consider manual reset equipment, etc., because the single-acting itself comes with a reset cage. The choice of double-acting pneumatic actuator should be considered, because there is no spring reset, whether to attach a handwheel operating mechanism to the pneumatic actuator for emergencies. The above is all the contents of the principle of single/double acting actuator in pneumatic actuator introduced to you by Wuxi Xinming automatic control valve industry Co., Ltd., if you have any questions, please feel free to come to consult!

Principle of single/double acting actuator in pneumatic actuator

Today, Wuxi Xinming automatic control valve industry Co., Ltd. will give you a specific introduction.Pneumatic actuatorPrinciple of single/double acting actuators in:

气动执行器
Pneumatic actuatorIntroduction:
Pneumatic actuator is a kind of control actuator driven by compressed air source. It is used in combination with various pneumatic accessories to complete the opening and closing of valves and adjustment. The composition and structure of the pneumatic valve can not be separated from the pneumatic cooperator. So it is necessary for us to talk about this pneumatic actuator. In the face of Huamen pneumatic actuator selection, you will encounter the requirement of actuator skill participation, single-acting actuator may act actuator.
What is the difference between (single-acting, double-acting) pneumatic actuator? In fact, the difference between (single-acting, double-acting) pneumatic actuator is that the single-acting pneumatic actuator has a reset function, and the internal spring policy of the actuator can be reset actively after the gas source is broken. However, the double-acting pneumatic actuator can only be used as a gas on or off, and cannot be restored when the gas source is off. Next, let's understand the principle of (single-acting, double-acting) pneumatic actuators.
single acting pneumatic actuator principle:
The working principle of a single-acting pneumatic actuator is that when the compressed air enters through port A, the left and right pistons in the cylinder move in opposite directions, and the output shaft rolls counterclockwise at this moment. The compressed air beside the two pistons is discharged through B. When the pneumatic actuator loses the air source, because the function of the internal spring is to move the piston to the center, the output shaft rolls clockwise at this moment, and the air in the middle of the two pistons is discharged through port A. The actuator will drive the valve back to the initial set position under the tension of the spring.
double acting pneumatic actuator principle:
The working principle of the double-acting pneumatic actuator is that when the compressed air enters from port A, the left and right pistons move in opposite directions, and the output shaft rolls counterclockwise at this moment. The air on the side of the two pistons is discharged through the B port. When the air source is used to enter the B port to make the left and right pistons move to the center, the output shaft moves clockwise at this moment, and the air in the middle of the two pistons is discharged with A port. Because there is no tension spring for double action, the intelligence stops in the original position when the air source is faulty.
Selection of single-acting and double-acting pneumatic actuators:
The valve pneumatic actuator shall first admit the good mode of action plus in the selection of punishment. Single-action with elastic reset, double-action switch punishment, that is, the common normally open punishment (ventilation off, gas cut off), normally closed punishment (ventilation on, gas cut off).
The second is the functional requirements, such as the requirements on the gas source trio. If you choose a single-acting pneumatic actuator, you don't need to consider manual reset equipment, etc., because the single-acting itself comes with a reset cage. The choice of double-acting pneumatic actuator should be considered, because there is no spring reset, whether to attach a handwheel operating mechanism to the pneumatic actuator for emergencies.









气动执行器
The above is all the contents of the principle of single/double acting actuator in pneumatic actuator introduced to you by Wuxi Xinming automatic control valve industry Co., Ltd., if you have any questions, please feel free to come to consult!