Filtration Accuracy Test of Hydraulic oil filter

Determined by stains hydraulic system cleanliness level required, and then press the symbol table selection filter filtering accuracy according to this cleanliness level. Industrial hydraulic oil cleanliness (ISO4406) in the name of the filter filtering accuracy (μm) applications.

19/16 20 General hydraulic components (less than 10MPa) Since the name of filtering accuracy can not truly reflect the ability to filter cartridge, therefore, often the largest diameter of hard spherical particles under the test conditions specified in the filter can be used as an absolute filter accuracy, ability to directly reflect the newly installed filter cartridge early.

Evaluation of hydraulic oil filter is the most important criterion β value by ISO4527-1981E (multi-pass test) measurement, which allow standard test powder mixed with oil repeatedly circulated through the oil filter, the inlet and outlet ports on both sides ratio of the number of particles. Flow characteristics filter through the oil flow and pressure drop is an important parameter flow characteristics, shall ISO3968-91 standard test flow characteristics, to draw the flow - pressure drop characteristic curve.