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The standardization of the control valve in the following four aspects: (1) in order to achieve interchangeability, the same size and size control valve manufacturers can interchange, so users do not have to choose a manufacturer and spend a lot of time. (2) In order to achieve interoperability, control valves manufactured by different manufacturers should be able to work with other manufacturers' products without signal mismatch or impedance mismatch. (3) Standardized diagnostic software and other assistive software to enable the control valve of different manufacturers to diagnose the running status, analyze the operation data and so on. (4) standardized selection process. Control valve selection is still very concerned about the design of self-control problems, the use of standardized calculation procedures, according to the data provided by the process, the correct calculation of the required control valve flow coefficient, to determine the piping and selection of suitable valve body, valve and valve Internals, etc., to standardize the design process, improve design quality.