How do we correctly choose the hydraulic oil filter element? We need to consider from the following 5 aspects:
1. Filtration accuracy
First, determine the cleanliness level of the stains according to the needs of the hydraulic system, and then select the filtering accuracy of the oil filter according to the table according to the cleanliness level. The hydraulic oil filter element most commonly used in construction machinery has a nominal filtration degree of 10μm.
2. Flow characteristics
The flow rate and pressure drop of the filter element through the oil are important parameters of the flow characteristics. The flow characteristics test should be carried out according to the ISO3968-91 standard to draw the flow-pressure drop characteristic curve.
3. The strength of the filter element should be subjected to a rupture-impact test according to the ISO2941-83 standard. The pressure difference that drops sharply when the filter element is damaged should be greater than the specified value.
4. Flow fatigue characteristics
The fatigue test shall be in accordance with ISO3724-90 standard. The filter element must undergo a fatigue test of 100,000 cycles.
5. Test of adaptability to hydraulic oil
The pressure flow endurance test should be carried out according to the ISO2943-83 standard to verify the compatibility of the filter material with the hydraulic oil.
The hydraulic oil filter element is a professional term in the filtration industry. In order to purify the original ecological resources and reuse the resources, the purification equipment is needed. Now the filter element is mainly used in the filtration industries such as oil filtration, air filtration, and water filtration.
The hydraulic oil filter element is mainly made of paper filter element, chemical fiber filter element (glass fiber, metal fiber sintered felt, polypropylene fiber, polyester fiber), mesh filter element (stainless steel mesh), line gap filter element.
The hydraulic oil filter element is suitable for filtering strong acids, strong alkalis and organic solvents. The filter membrane is a pleated deep filtration, with a large membrane filtration area, low pressure difference, strong dirt holding capacity and long service life. There are many models and specifications to choose from.