Hydraulic fluid power — Multi-pass method of evaluating filtration performance of a filter element under cyclic flow conditions
液压传动.在循环流动条件下评价过滤元件过滤性能的多通道方法
a)?A multi-pass filtration performance test under cyclic flow conditions with continuous contaminant injection for hydraulic fluid power filter elements.
b)?A procedure for determining the contaminant capacity, particulate removal and differential pressure characteristics.
c)?A test currently applicable to hydraulic fluid power filter elements that exhibit an average filtration ratio greater than or equal to 75 for particle sizes ≤25?μm(c), and a final test system reservoir gravimetric level of less than 200?mg/L. It is necessary to determine by validation the range of flow rates and the lower particle size limit that can be used in test facilities.
d)?A test using ISO?12103?1 A3 medium test dust contaminant and a test fluid.
This document provides a test procedure that yields reproducible test data for appraising the filtration performance of a hydraulic fluid power filter element without influence of electrostatic charge.
This document is applicable to three test conditions: