How to adjust the Pneumatic Rack and Pinion Actuator switch not in place
Pneumatic Rack and Pinion Actuator switch is not in place, generally refers to the failure of the matching valve product switch is not in place, how to adjust? The supporting valve of the pneumatic actuator, such as the pneumatic shut-off valve, generally has a certain amount of leakage during use. If the leakage exceeds the standard value, it is easy to cause quality problems such as the switch cannot being closed. Therefore, we must understand the allowable standards for leakage and use pneumatic actuator products correctly.
If it is not the above leak, you can check whether the valve and valve stem are stuck by foreign objects. If it needs to be dealt with as soon as possible, it is also necessary to check whether the range adjustment of the electric positioner is not enough, whether the pressure difference before and after the pneumatic shut-off valve is too large, and whether there is a problem with the selection, and whether the output force of the pneumatic actuator is too small, the effective output pressure can be increased. (+PF) to increase output force. For the air shut-off valve, the regulator is turned to the left (released), that is, Po~PL moves forward, but pays attention to whether the full stroke changes. The above is the fault cause and the adjustment method of the Pneumatic Rack and Pinion Actuator switch is not in place. I hope this helps you.
