How to select the filter in the filter device

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An optional filter equipment must be original engine power, economy and reliability to match.woven fabrics
Second, the the empty chlorine flow filter dev ice should be greater than the nominal intake air of the engine.
Third, the filter material should have a thickness of the filter equipment, tension and a high filtration accuracy, generally efficient filtration accuracy of the filter paper is 2μm, import filter paper is 30 μm, the domestic filter paper compared to 80 μm.
IV selected filter performance test
1, the flow - resistance test: This is for the determination of air flow pressure loss;
2, the original filtration efficiency test: this test can be calculated out of the dust collection efficiency of the filter element, the filter device generally qualified dustfall rate should be 99% or more;
3, the raw air intake resistance test: the test intake air resistance of 9, nominal gas through the filter when the intake and at the outlet of the differential pressure should not exceed 3kPa Otherwise, the power of the device will drop, the engine also smoky;
4, liquidation test: to determin e whether the inside of the filter to remove residual dust and impurities in the production truly effective;
5, bubbles law test: used to confirm whether the filter pore exists, is greater than the accuracy of the filter;
6, the filter efficiency and service life test: The filtration efficiency requires the determination of the percentage of the particles are cleared, while the service life in pressure is greater than 0.07MPa time test prevail;
7, the validity of the water separation test: this test to determine the percentage of the oil filter separation of oil and water mixture;