How to deal with the problems of slow reaction of pneumatic actuator and shaking of valve start and close?

The use status of pneumatic actuator in the field often changes due to the change of actual working conditions, such as aging of accessories, aging of parts, replacement of original valve, failure of air supply system, etc. when the above changes occur, the failure of valve pneumatic actuator will inevitably affect the normal pipeline control. Let's see how to deal with the reverse of pneumatic actuator Should be slow, valve start and close jitter.

1、 The standard air supply pressure of most pneumatic actuators is 0.4 ~ 0.7MPa. Firstly, check whether the air pressure of pneumatic actuator is too low. If it is lower than the above air supply pressure, it is necessary to correct and deal with it in time.

2、 Check whether the solenoid valve operates normally, whether the switching is normal and whether the exhaust is smooth. If the solenoid valve is found to be abnormal in daily inspection, repair and replace it in time, or contact the manufacturer for maintenance and treatment. The longer the delay, the greater the loss.

3、 If the action of single acting pneumatic actuator is too slow or shaking, it is necessary to check whether the exhaust side pipeline is blocked, whether the solenoid valve fails and whether the spring in the actuator is too rigid. If the cause cannot be determined, contact the manufacturer in time to solve the problem.

4、 Re check whether the output torque of the actuator of this model is consistent with the current valve body. When the rated output torque is less than the required torque of the valve body, there will be sluggish or shaking phenomenon. In this case, replace the valve or replace the pneumatic actuator model.

In addition to the above points, if it is still not solved, it is suggested that the user can contact the original manufacturer directly to get a more stable treatment.