The use status of pneumatic actuators in the field often changes correspondingly due to changes in actual working conditions, such as aging accessories, aging parts, replacement of original valves, air supply system failure, etc. When the above changes occur, the valve pneumatic The failure of the actuator will inevitably affect the normal pipeline control. Let's take a look at how to deal with the slow response of the pneumatic actuator and the vibration of the valve when it starts and closes. 1. The standard air supply pressure of most pneumatic actuators is 0.4~0.7MPa. First, check whether the air pressure of the pneumatic actuator is too low. If it is lower than the above air supply pressure, it needs to be corrected in time.
2. Check whether the solenoid valve is running normally, whether the switching is normal, and whether the exhaust is smooth. If the solenoid valve is found to be abnormal in daily inspection, it should be repaired and replaced in time, or the manufacturer should be contacted for maintenance in time. The longer the delay, the greater the loss.
3. For single-acting pneumatic actuators, if the action is too slow or jittery, be sure to check whether the exhaust side pipeline is blocked, whether the solenoid valve is out of order, and whether the inner spring of the actuator is too rigid. If the cause cannot be determined, promptly Contact the manufacturer to resolve.
4. Re-check whether the output torque of the actuator of this type is in line with the currently equipped valve body. When the rated output torque is less than the torque required by the valve body, there will also be slow action or jitter. In such a case, replace the valve or Change the pneumatic actuator model.
In addition to the above points, if it is still unresolved, it is recommended that the user can directly contact the original manufacturer to obtain a more secure solution.
