The zero deviation of the S63J0GA4VPL Electro hydraulic servo valve refers to the existence of a certain gap or deviation between the valve core and the valve body at the initial position of the valve core (referred to as the "zero position"). This gap or deviation will have an impact on the control accuracy of the servo valve, as it will cause the valve core to not be fully in the expected position under the given control signal, resulting in a deviation in output flow or pressure.

 

 

Normally, the zero position of the S63J0GA4VPL Electro hydraulic servo valve is determined by errors in the manufacturing process and assembly process. To ensure the accuracy and reliability of the servo valve, it is necessary to eliminate zero bias by adjusting or calibrating the servo valve. Generally speaking, zero deviation can be adjusted by increasing or decreasing spring preload, adjusting feedback potentiometer position, or replacing parts.

 

 

 

 

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DFYLSYC-2023-09-08-A