Dongguan Hengxinlong Auto Parts Industrial Co., LTD. : Filter Selection Tips (7)
Description：The primary criterion for evaluating a hydraulic oil filter element is the value as determined by IS....
The primary criterion for evaluating a hydraulic oil filter element is the value as determined by ISO4527-1981E(multi-pass test), that is, the ratio of the number of particles on both sides of the inlet and outlet of the filter when the oil mixed with the standard test powder is repeatedly cycled through the filter.
(2) Flow Characteristics The flow rate and pressure drop of the filter element through the oil are important parameters of flow characteristics. Flow characteristics test should be conducted according to ISO3968-91 standard to draw the flow-pressure drop characteristic curve. Under the rated oil supply pressure, the total pressure drop (the sum of the pressure drop of the filter case and the pressure drop of the filter element) should generally be below 0.2mpa.
This article by Ren County Linyang seal factory finishing
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