Ask the symbol problem in the hydraulic system diagram
7 is an oil filter and 17 is an oil filter. Non-high pressure, general situation is not special requirement can be universal. The symbol can be used to determine the component, but the size of the valve and the other details are specified by the type of the valve.
As can be seen from the figure of encoding rules: letters in front of the Numbers on behalf of the hydraulic system of branch of zero represents the middle of the first pump branch and branch road 2 represents the second pump branch and branch road 3 represents the right end pump system branch and branch road 4 represents the oil return each branch of the system And letters mainly represent each element is the abbreviation of English letters: P pump V represents the Z filters, etc., concrete can refer to the various elements of English. The number behind the letter: the serial number of the symbol... 7 and 18 component is not the same: 7 is a representative oil return filter Is generally low, : 18 is the oil filter (high pressure filter) flow filtration precision and also to have certain difference, it depends on the specific need to distinguish between the hydraulic system design.
Combination of Numbers and letters on the side of each component labeling coding generally referred to as the hydraulic principle diagram component, the drawing is Germany, domestic manufacturers have also have their own coding rules.
