What are the rules and instructions on the graphic symbol of hydraulic components in China?
A graphic symbol of hydraulic element, which is used to draw hydraulic system schematic of hydraulic oil for working medium. The graphic symbol of the hydraulic element shall be expressed in the static or zero position of the element; Exceptions can be made when the action of the constituent system is otherwise specified. In the hydraulic transmission system, if the hydraulic component cannot be expressed by the graphic symbol, the structure diagram can be used to express, Looking element symbols said only element function and connection path of the system, and does not represent components of concrete structure parameters, nor the location of the piping system and component installation location; And components of graphic symbol action is decorated in the transmission system, in addition to have directional element symbols (tank and instrument, etc.), can be horizontal or vertical drawing according to the concrete situation.
The symbol size of the symbol is based on the principle of clarity and beauty, but the proportions of the graphic symbol itself are to be considered according to the size of the pattern.
The graphic symbols that are not specified in the standard may be derived according to the principles of this standard and the regularity of the enumerated illustrations; When cannot reference and derived directly, or it is necessary to specify one of the important components in the system structure and principle of action, all permits the local structure diagram.
